256 files changed, 2866 insertions, 2060 deletions

diff --git a/.gitignore b/.gitignore
index 22fb8fa9bc3d..8d14531846b9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,7 @@
 *.s
 *.ko
 *.so
+*.so.dbg
 *.mod.c
 *.i
 *.lst
diff --git a/Documentation/device-mapper/dm-uevent.txt b/Documentation/device-mapper/dm-uevent.txt
new file mode 100644
index 000000000000..07edbd85c714
--- /dev/null
+++ b/Documentation/device-mapper/dm-uevent.txt
@@ -0,0 +1,97 @@
+The device-mapper uevent code adds the capability to device-mapper to create
+and send kobject uevents (uevents).  Previously device-mapper events were only
+available through the ioctl interface.  The advantage of the uevents interface
+is the event contains environment attributes providing increased context for
+the event avoiding the need to query the state of the device-mapper device after
+the event is received.
+
+There are two functions currently for device-mapper events.  The first function
+listed creates the event and the second function sends the event(s).
+
+void dm_path_uevent(enum dm_uevent_type event_type, struct dm_target *ti,
+                    const char *path, unsigned nr_valid_paths)
+
+void dm_send_uevents(struct list_head *events, struct kobject *kobj)
+
+
+The variables added to the uevent environment are:
+
+Variable Name: DM_TARGET
+Uevent Action(s): KOBJ_CHANGE
+Type: string
+Description:
+Value: Name of device-mapper target that generated the event.
+
+Variable Name: DM_ACTION
+Uevent Action(s): KOBJ_CHANGE
+Type: string
+Description:
+Value: Device-mapper specific action that caused the uevent action.
+        PATH_FAILED - A path has failed.
+        PATH_REINSTATED - A path has been reinstated.
+
+Variable Name: DM_SEQNUM
+Uevent Action(s): KOBJ_CHANGE
+Type: unsigned integer
+Description: A sequence number for this specific device-mapper device.
+Value: Valid unsigned integer range.
+
+Variable Name: DM_PATH
+Uevent Action(s): KOBJ_CHANGE
+Type: string
+Description: Major and minor number of the path device pertaining to this
+event.
+Value: Path name in the form of "Major:Minor"
+
+Variable Name: DM_NR_VALID_PATHS
+Uevent Action(s): KOBJ_CHANGE
+Type: unsigned integer
+Description:
+Value: Valid unsigned integer range.
+
+Variable Name: DM_NAME
+Uevent Action(s): KOBJ_CHANGE
+Type: string
+Description: Name of the device-mapper device.
+Value: Name
+
+Variable Name: DM_UUID
+Uevent Action(s): KOBJ_CHANGE
+Type: string
+Description: UUID of the device-mapper device.
+Value: UUID. (Empty string if there isn't one.)
+
+An example of the uevents generated as captured by udevmonitor is shown
+below.
+
+1.) Path failure.
+UEVENT[1192521009.711215] change@/block/dm-3
+ACTION=change
+DEVPATH=/block/dm-3
+SUBSYSTEM=block
+DM_TARGET=multipath
+DM_ACTION=PATH_FAILED
+DM_SEQNUM=1
+DM_PATH=8:32
+DM_NR_VALID_PATHS=0
+DM_NAME=mpath2
+DM_UUID=mpath-35333333000002328
+MINOR=3
+MAJOR=253
+SEQNUM=1130
+
+2.) Path reinstate.
+UEVENT[1192521132.989927] change@/block/dm-3
+ACTION=change
+DEVPATH=/block/dm-3
+SUBSYSTEM=block
+DM_TARGET=multipath
+DM_ACTION=PATH_REINSTATED
+DM_SEQNUM=2
+DM_PATH=8:32
+DM_NR_VALID_PATHS=1
+DM_NAME=mpath2
+DM_UUID=mpath-35333333000002328
+MINOR=3
+MAJOR=253
+SEQNUM=1131
diff --git a/Documentation/kbuild/kconfig-language.txt b/Documentation/kbuild/kconfig-language.txt
index fe8b0c4892cf..616043a6da99 100644
--- a/Documentation/kbuild/kconfig-language.txt
+++ b/Documentation/kbuild/kconfig-language.txt
@@ -77,7 +77,12 @@ applicable everywhere (see syntax).
   Optionally, dependencies only for this default value can be added with
   "if".
 
-- dependencies: "depends on"/"requires" <expr>
+- type definition + default value:
+        "def_bool"/"def_tristate" <expr> ["if" <expr>]
+  This is a shorthand notation for a type definition plus a value.
+  Optionally dependencies for this default value can be added with "if".
+
+- dependencies: "depends on" <expr>
   This defines a dependency for this menu entry. If multiple
   dependencies are defined, they are connected with '&&'. Dependencies
   are applied to all other options within this menu entry (which also
@@ -289,3 +294,10 @@ source:
         "source" <prompt>
 
 This reads the specified configuration file. This file is always parsed.
+
+mainmenu:
+
+        "mainmenu" <prompt>
+
+This sets the config program's title bar if the config program chooses
+to use it.
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index f099b814d383..6166e2d7da76 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -518,6 +518,28 @@ more details, with real examples.
         In this example for a specific GCC version the build will error out explaining
         to the user why it stops.
 
+    cc-cross-prefix
+        cc-cross-prefix is used to check if there exist a $(CC) in path with
+        one of the listed prefixes. The first prefix where there exist a
+        prefix$(CC) in the PATH is returned - and if no prefix$(CC) is found
+        then nothing is returned.
+        Additional prefixes are separated by a single space in the
+        call of cc-cross-prefix.
+        This functionality is usefull for architecture Makefile that try
+        to set CROSS_COMPILE to well know values but may have several
+        values to select between.
+        It is recommended only to try to set CROSS_COMPILE is it is a cross
+        build (host arch is different from target arch). And is CROSS_COMPILE
+        is already set then leave it with the old value.
+
+        Example:
+                #arch/m68k/Makefile
+                ifneq ($(SUBARCH),$(ARCH))
+                        ifeq ($(CROSS_COMPILE),)
+                               CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu-)
+                        endif
+                endif
+
 === 4 Host Program support
 
 Kbuild supports building executables on the host for use during the
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 929734386fd9..6accd360da73 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -419,8 +419,10 @@ and is between 256 and 4096 characters. It is defined in the file
                         over the 8254 in addition to over the IO-APIC. The
                         kernel tries to set a sensible default.
 
-        hpet=           [X86-32,HPET] option to disable HPET and use PIT.
-                        Format: disable
+        hpet=           [X86-32,HPET] option to control HPET usage
+                        Format: { enable (default) | disable | force }
+                        disable: disable HPET and use PIT instead
+                        force: allow force enabled of undocumented chips (ICH4, VIA)
 
         com20020=       [HW,NET] ARCnet - COM20020 chipset
                         Format:
diff --git a/MAINTAINERS b/MAINTAINERS
index 2534dc4aa95a..4ed41394e492 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2178,7 +2178,7 @@ S:	Maintained
 KCONFIG
 P:      Roman Zippel
 M:      zippel@linux-m68k.org
-L:      kbuild-devel@lists.sourceforge.net
+L:      linux-kbuild@vger.kernel.org
 S:      Maintained
 
 KDUMP
@@ -2207,6 +2207,7 @@ KERNEL BUILD (kbuild: Makefile, scripts/Makefile.*)
 P:      Sam Ravnborg
 M:      sam@ravnborg.org
 T:      git kernel.org:/pub/scm/linux/kernel/git/sam/kbuild.git
+L:      linux-kbuild@vger.kernel.org
 S:      Maintained
 
 KERNEL JANITORS
diff --git a/Makefile b/Makefile
index 68ef80b30340..f9c264e243a2 100644
--- a/Makefile
+++ b/Makefile
@@ -887,10 +887,7 @@ prepare2: prepare3 outputmakefile
 
 prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \
                    include/asm include/config/auto.conf
-ifneq ($(KBUILD_MODULES),)
-        $(Q)mkdir -p $(MODVERDIR)
-        $(Q)rm -f $(MODVERDIR)/*
-endif
+        $(cmd_crmodverdir)
 
 archprepare: prepare1 scripts_basic
 
@@ -906,14 +903,24 @@ prepare: prepare0
 
 export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
 
-# FIXME: The asm symlink changes when $(ARCH) changes. That's
-# hard to detect, but I suppose "make mrproper" is a good idea
-# before switching between archs anyway.
-
-include/asm:
-        @echo '  SYMLINK $@ -> include/asm-$(SRCARCH)'
-        $(Q)if [ ! -d include ]; then mkdir -p include; fi;
-        @ln -fsn asm-$(SRCARCH) $@
+# The asm symlink changes when $(ARCH) changes.
+# Detect this and ask user to run make mrproper
+
+include/asm: FORCE
+        $(Q)set -e; asmlink=`readlink include/asm | cut -d '-' -f 2`;   \
+        if [ -L include/asm ]; then                                     \
+                if [ "$$asmlink" != "$(SRCARCH)" ]; then                \
+                        echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \
+                        echo "       set ARCH or save .config and run 'make mrproper' to fix it";             \
+                        exit 1;                                         \
+                fi;                                                     \
+        else                                                            \
+                echo '  SYMLINK $@ -> include/asm-$(SRCARCH)';          \
+                if [ ! -d include ]; then                               \
+                        mkdir -p include;                               \
+                fi;                                                     \
+                ln -fsn asm-$(SRCARCH) $@;                              \
+        fi
 
 # Generate some files
 # ---------------------------------------------------------------------------
@@ -1023,19 +1030,12 @@ _modinst_:
         fi
         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
 
-# If System.map exists, run depmod.  This deliberately does not have a
-# dependency on System.map since that would run the dependency tree on
-# vmlinux.  This depmod is only for convenience to give the initial
+# This depmod is only for convenience to give the initial
 # boot a modules.dep even before / is mounted read-write.  However the
 # boot script depmod is the master version.
-ifeq "$(strip $(INSTALL_MOD_PATH))" ""
-depmod_opts     :=
-else
-depmod_opts     := -b $(INSTALL_MOD_PATH) -r
-endif
 PHONY += _modinst_post
 _modinst_post: _modinst_
-        if [ -r System.map -a -x $(DEPMOD) ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi
+        $(call cmd,depmod)
 
 else # CONFIG_MODULES
 
@@ -1223,8 +1223,7 @@ else # KBUILD_EXTMOD
 KBUILD_MODULES := 1
 PHONY += crmodverdir
 crmodverdir:
-        $(Q)mkdir -p $(MODVERDIR)
-        $(Q)rm -f $(MODVERDIR)/*
+        $(cmd_crmodverdir)
 
 PHONY += $(objtree)/Module.symvers
 $(objtree)/Module.symvers:
@@ -1252,15 +1251,6 @@ _emodinst_:
         $(Q)mkdir -p $(MODLIB)/$(install-dir)
         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
 
-# Run depmod only is we have System.map and depmod is executable
-quiet_cmd_depmod = DEPMOD  $(KERNELRELEASE)
-      cmd_depmod = if [ -r System.map -a -x $(DEPMOD) ]; then \
-                      $(DEPMOD) -ae -F System.map             \
-                      $(if $(strip $(INSTALL_MOD_PATH)),      \
-                      -b $(INSTALL_MOD_PATH) -r)              \
-                      $(KERNELRELEASE);                       \
-                   fi
-
 PHONY += _emodinst_post
 _emodinst_post: _emodinst_
         $(call cmd,depmod)
@@ -1344,7 +1334,7 @@ define find-sources
           find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \
                -name $1 -print; \
           find $(__srctree) $(RCS_FIND_IGNORE) \
-               \( -name include -o -name arch \) -prune -o \
+               \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
                -name $1 -print; \
           )
 endef
@@ -1493,9 +1483,11 @@ endif
 
 # Modules
 / %/: prepare scripts FORCE
+        $(cmd_crmodverdir)
         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
         $(build)=$(build-dir)
 %.ko: prepare scripts FORCE
+        $(cmd_crmodverdir)
         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
         $(build)=$(build-dir) $(@:.ko=.o)
         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
@@ -1509,6 +1501,19 @@ quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
       cmd_rmfiles = rm -f $(rm-files)
 
+# Run depmod only is we have System.map and depmod is executable
+# and we build for the host arch
+quiet_cmd_depmod = DEPMOD  $(KERNELRELEASE)
+      cmd_depmod = \
+        if [ -r System.map -a -x $(DEPMOD) -a "$(SUBARCH)" == "$(ARCH)" ]; then \
+                $(DEPMOD) -ae -F System.map                                     \
+                $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) -r)   \
+                $(KERNELRELEASE);                                               \
+        fi
+
+# Create temporary dir for module support files
+cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR); rm -f $(MODVERDIR)/*
+
 
 a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \
           $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 7627e9bd8b44..f6e44fc5283c 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -1080,7 +1080,7 @@ config APM_REAL_MODE_POWER_OFF
 
 endif # APM
 
-source "arch/x86/kernel/cpu/cpufreq/Kconfig"
+source "arch/x86/kernel/cpu/cpufreq/Kconfig_32"
 
 source "drivers/cpuidle/Kconfig"
 
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index f036d2dee3de..b88e47ca3032 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -102,7 +102,7 @@ core-$(CONFIG_XEN)		+= arch/x86/xen/
 # default subarch .h files
 mflags-y += -Iinclude/asm-x86/mach-default
 
-head-y := arch/x86/kernel/head_32.o arch/x86/kernel/init_task_32.o
+head-y := arch/x86/kernel/head_32.o arch/x86/kernel/init_task.o
 
 libs-y                                  += arch/x86/lib/
 core-y                                  += arch/x86/kernel/ \
@@ -131,9 +131,9 @@ all: bzImage
 zImage zlilo zdisk: KBUILD_IMAGE := arch/x86/boot/zImage
 
 zImage bzImage: vmlinux
-        $(Q)mkdir -p $(objtree)/arch/i386/boot
-        $(Q)ln -fsn $(objtree)/arch/x86/boot/bzImage $(objtree)/arch/i386/boot/bzImage
         $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
+        $(Q)mkdir -p $(objtree)/arch/i386/boot
+        $(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/i386/boot/bzImage
 
 compressed: zImage
 
diff --git a/arch/x86/ia32/ia32_binfmt.c b/arch/x86/ia32/ia32_binfmt.c
index 5027650eb273..55822d2cf053 100644
--- a/arch/x86/ia32/ia32_binfmt.c
+++ b/arch/x86/ia32/ia32_binfmt.c
@@ -5,10 +5,6 @@
  * This tricks binfmt_elf.c into loading 32bit binaries using lots 
  * of ugly preprocessor tricks. Talk about very very poor man's inheritance.
  */ 
-#define __ASM_X86_64_ELF_H 1
-
-#undef ELF_CLASS
-#define ELF_CLASS ELFCLASS32
 
 #include <linux/types.h>
 #include <linux/stddef.h>
@@ -19,6 +15,7 @@
 #include <linux/binfmts.h>
 #include <linux/mm.h>
 #include <linux/security.h>
+#include <linux/elfcore-compat.h>
 
 #include <asm/segment.h> 
 #include <asm/ptrace.h>
@@ -31,6 +28,20 @@
 #include <asm/ia32.h>
 #include <asm/vsyscall32.h>
 
+#undef  ELF_ARCH
+#undef  ELF_CLASS
+#define ELF_CLASS       ELFCLASS32
+#define ELF_ARCH        EM_386
+
+#undef  elfhdr
+#undef  elf_phdr
+#undef  elf_note
+#undef  elf_addr_t
+#define elfhdr          elf32_hdr
+#define elf_phdr        elf32_phdr
+#define elf_note        elf32_note
+#define elf_addr_t      Elf32_Off
+
 #define ELF_NAME "elf/i386"
 
 #define AT_SYSINFO 32
@@ -48,74 +59,20 @@ int sysctl_vsyscall32 = 1;
 } while(0)
 
 struct file;
-struct elf_phdr; 
 
 #define IA32_EMULATOR 1
 
-#define ELF_ET_DYN_BASE         (TASK_UNMAPPED_BASE + 0x1000000)
-
-#undef ELF_ARCH
-#define ELF_ARCH EM_386
-
-#define ELF_DATA        ELFDATA2LSB
+#undef ELF_ET_DYN_BASE
 
-#define USE_ELF_CORE_DUMP 1
-
-/* Override elfcore.h */ 
-#define _LINUX_ELFCORE_H 1
-typedef unsigned int elf_greg_t;
-
-#define ELF_NGREG (sizeof (struct user_regs_struct32) / sizeof(elf_greg_t))
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-struct elf_siginfo
-{
-        int     si_signo;                       /* signal number */
-        int     si_code;                        /* extra code */
-        int     si_errno;                       /* errno */
-};
+#define ELF_ET_DYN_BASE         (TASK_UNMAPPED_BASE + 0x1000000)
 
 #define jiffies_to_timeval(a,b) do { (b)->tv_usec = 0; (b)->tv_sec = (a)/HZ; }while(0)
 
-struct elf_prstatus
-{
-        struct elf_siginfo pr_info;     /* Info associated with signal */
-        short   pr_cursig;              /* Current signal */
-        unsigned int pr_sigpend;        /* Set of pending signals */
-        unsigned int pr_sighold;        /* Set of held signals */
-        pid_t   pr_pid;
-        pid_t   pr_ppid;
-        pid_t   pr_pgrp;
-        pid_t   pr_sid;
-        struct compat_timeval pr_utime; /* User time */
-        struct compat_timeval pr_stime; /* System time */
-        struct compat_timeval pr_cutime;        /* Cumulative user time */
-        struct compat_timeval pr_cstime;        /* Cumulative system time */
-        elf_gregset_t pr_reg;   /* GP registers */
-        int pr_fpvalid;         /* True if math co-processor being used.  */
-};
-
-#define ELF_PRARGSZ     (80)    /* Number of chars for args */
-
-struct elf_prpsinfo
-{
-        char    pr_state;       /* numeric process state */
-        char    pr_sname;       /* char for pr_state */
-        char    pr_zomb;        /* zombie */
-        char    pr_nice;        /* nice val */
-        unsigned int pr_flag;   /* flags */
-        __u16   pr_uid;
-        __u16   pr_gid;
-        pid_t   pr_pid, pr_ppid, pr_pgrp, pr_sid;
-        /* Lots missing */
-        char    pr_fname[16];   /* filename of executable */
-        char    pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
-};
-
 #define _GET_SEG(x) \
         ({ __u32 seg; asm("movl %%" __stringify(x) ",%0" : "=r"(seg)); seg; })
 
 /* Assumes current==process to be dumped */
+#undef  ELF_CORE_COPY_REGS
 #define ELF_CORE_COPY_REGS(pr_reg, regs)                \
         pr_reg[0] = regs->rbx;                          \
         pr_reg[1] = regs->rcx;                          \
@@ -135,36 +92,41 @@ struct elf_prpsinfo
         pr_reg[15] = regs->rsp;                         \
         pr_reg[16] = regs->ss;
 
-#define user user32
+
+#define elf_prstatus    compat_elf_prstatus
+#define elf_prpsinfo    compat_elf_prpsinfo
+#define elf_fpregset_t  struct user_i387_ia32_struct
+#define elf_fpxregset_t struct user32_fxsr_struct
+#define user            user32
 
 #undef elf_read_implies_exec
 #define elf_read_implies_exec(ex, executable_stack)     (executable_stack != EXSTACK_DISABLE_X)
-//#include <asm/ia32.h>
-#include <linux/elf.h>
-
-typedef struct user_i387_ia32_struct elf_fpregset_t;
-typedef struct user32_fxsr_struct elf_fpxregset_t;
-
 
-static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
+#define elf_core_copy_regs              elf32_core_copy_regs
+static inline void elf32_core_copy_regs(compat_elf_gregset_t *elfregs,
+                                        struct pt_regs *regs)
 {
-        ELF_CORE_COPY_REGS((*elfregs), regs)
+        ELF_CORE_COPY_REGS((&elfregs->ebx), regs)
 }
 
-static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
+#define elf_core_copy_task_regs         elf32_core_copy_task_regs
+static inline int elf32_core_copy_task_regs(struct task_struct *t,
+                                            compat_elf_gregset_t* elfregs)
 {       
         struct pt_regs *pp = task_pt_regs(t);
-        ELF_CORE_COPY_REGS((*elfregs), pp);
+        ELF_CORE_COPY_REGS((&elfregs->ebx), pp);
         /* fix wrong segments */ 
-        (*elfregs)[7] = t->thread.ds; 
-        (*elfregs)[9] = t->thread.fsindex; 
-        (*elfregs)[10] = t->thread.gsindex; 
-        (*elfregs)[8] = t->thread.es;   
+        elfregs->ds = t->thread.ds;
+        elfregs->fs = t->thread.fsindex;
+        elfregs->gs = t->thread.gsindex;
+        elfregs->es = t->thread.es;
         return 1; 
 }
 
+#define elf_core_copy_task_fpregs       elf32_core_copy_task_fpregs
 static inline int 
-elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpregset_t *fpu)
+elf32_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs,
+                            elf_fpregset_t *fpu)
 {
         struct _fpstate_ia32 *fpstate = (void*)fpu; 
         mm_segment_t oldfs = get_fs();
@@ -186,8 +148,9 @@ elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpr
 
 #define ELF_CORE_COPY_XFPREGS 1
 #define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
+#define elf_core_copy_task_xfpregs      elf32_core_copy_task_xfpregs
 static inline int 
-elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
+elf32_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
 {
         struct pt_regs *regs = task_pt_regs(t);
         if (!tsk_used_math(t))
@@ -206,6 +169,10 @@ elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
 
 extern int force_personality32;
 
+#undef  ELF_EXEC_PAGESIZE
+#undef  ELF_HWCAP
+#undef  ELF_PLATFORM
+#undef  SET_PERSONALITY
 #define ELF_EXEC_PAGESIZE PAGE_SIZE
 #define ELF_HWCAP (boot_cpu_data.x86_capability[0])
 #define ELF_PLATFORM  ("i686")
@@ -231,6 +198,7 @@ do {							\
 
 #define load_elf_binary load_elf32_binary
 
+#undef  ELF_PLAT_INIT
 #define ELF_PLAT_INIT(r, load_addr)     elf32_init(r)
 
 #undef start_thread
diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index a3fa11f8f460..ccea590bbb92 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-extra-y := head_32.o init_task_32.o vmlinux.lds
+extra-y := head_32.o init_task.o vmlinux.lds
 
 obj-y   := process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
                 ptrace_32.o time_32.o ioport_32.o ldt_32.o setup_32.o i8259_32.o sys_i386_32.o \
@@ -17,6 +17,7 @@ obj-$(CONFIG_MCA)		+= mca_32.o
 obj-$(CONFIG_X86_MSR)           += msr.o
 obj-$(CONFIG_X86_CPUID)         += cpuid.o
 obj-$(CONFIG_MICROCODE)         += microcode.o
+obj-$(CONFIG_PCI)               += early-quirks.o
 obj-$(CONFIG_APM)               += apm_32.o
 obj-$(CONFIG_X86_SMP)           += smp_32.o smpboot_32.o tsc_sync.o
 obj-$(CONFIG_SMP)               += smpcommon_32.o
diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index 43da66213a47..dec06e769281 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-extra-y         := head_64.o head64.o init_task_64.o vmlinux.lds
+extra-y         := head_64.o head64.o init_task.o vmlinux.lds
 EXTRA_AFLAGS    := -traditional
 obj-y   := process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
                 ptrace_64.o time_64.o ioport_64.o ldt_64.o setup_64.o i8259_64.o sys_x86_64.o \
@@ -39,7 +39,7 @@ obj-$(CONFIG_K8_NB)		+= k8.o
 obj-$(CONFIG_AUDIT)             += audit_64.o
 
 obj-$(CONFIG_MODULES)           += module_64.o
-obj-$(CONFIG_PCI)               += early-quirks_64.o
+obj-$(CONFIG_PCI)               += early-quirks.o
 
 obj-y                           += topology.o
 obj-y                           += intel_cacheinfo.o
diff --git a/arch/x86/kernel/acpi/Makefile_32 b/arch/x86/kernel/acpi/Makefile_32
index a4852a2e9190..045dd54b33e0 100644
--- a/arch/x86/kernel/acpi/Makefile_32
+++ b/arch/x86/kernel/acpi/Makefile_32
@@ -1,7 +1,4 @@
 obj-$(CONFIG_ACPI)              += boot.o
-ifneq ($(CONFIG_PCI),)
-obj-$(CONFIG_X86_IO_APIC)       += earlyquirk_32.o
-endif
 obj-$(CONFIG_ACPI_SLEEP)        += sleep_32.o wakeup_32.o
 
 ifneq ($(CONFIG_ACPI_PROCESSOR),)
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 25337f2b7399..289247d974c6 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -555,7 +555,7 @@ EXPORT_SYMBOL(acpi_map_lsapic);
 
 int acpi_unmap_lsapic(int cpu)
 {
-        x86_cpu_to_apicid[cpu] = -1;
+        per_cpu(x86_cpu_to_apicid, cpu) = -1;
         cpu_clear(cpu, cpu_present_map);
         num_processors--;
 
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index 2d39f55d29a8..10b67170b133 100644
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -29,7 +29,7 @@
 void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
                                         unsigned int cpu)
 {
-        struct cpuinfo_x86 *c = cpu_data + cpu;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
 
         flags->bm_check = 0;
         if (num_online_cpus() == 1)
@@ -72,7 +72,7 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
                 struct acpi_processor_cx *cx, struct acpi_power_register *reg)
 {
         struct cstate_entry *percpu_entry;
-        struct cpuinfo_x86 *c = cpu_data + cpu;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
 
         cpumask_t saved_mask;
         int retval;
diff --git a/arch/x86/kernel/acpi/earlyquirk_32.c b/arch/x86/kernel/acpi/earlyquirk_32.c
deleted file mode 100644
index 23f78efc577d..000000000000
--- a/arch/x86/kernel/acpi/earlyquirk_32.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/* 
- * Do early PCI probing for bug detection when the main PCI subsystem is 
- * not up yet.
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/acpi.h>
-
-#include <asm/pci-direct.h>
-#include <asm/acpi.h>
-#include <asm/apic.h>
-
-#ifdef CONFIG_ACPI
-
-static int __init nvidia_hpet_check(struct acpi_table_header *header)
-{
-        return 0;
-}
-#endif
-
-static int __init check_bridge(int vendor, int device)
-{
-#ifdef CONFIG_ACPI
-        static int warned;
-        /* According to Nvidia all timer overrides are bogus unless HPET
-           is enabled. */
-        if (!acpi_use_timer_override && vendor == PCI_VENDOR_ID_NVIDIA) {
-                if (!warned && acpi_table_parse(ACPI_SIG_HPET,
-                                                nvidia_hpet_check)) {
-                        warned = 1;
-                        acpi_skip_timer_override = 1;
-                          printk(KERN_INFO "Nvidia board "
-                       "detected. Ignoring ACPI "
-                       "timer override.\n");
-                printk(KERN_INFO "If you got timer trouble "
-                                 "try acpi_use_timer_override\n");
-
-                }
-        }
-#endif
-        if (vendor == PCI_VENDOR_ID_ATI && timer_over_8254 == 1) {
-                timer_over_8254 = 0;
-                printk(KERN_INFO "ATI board detected. Disabling timer routing "
-                                "over 8254.\n");
-        }
-        return 0;
-}
-
-void __init check_acpi_pci(void)
-{
-        int num, slot, func;
-
-        /* Assume the machine supports type 1. If not it will 
-           always read ffffffff and should not have any side effect.
-           Actually a few buggy systems can machine check. Allow the user
-           to disable it by command line option at least -AK */
-        if (!early_pci_allowed())
-                return;
-
-        /* Poor man's PCI discovery */
-        for (num = 0; num < 32; num++) {
-                for (slot = 0; slot < 32; slot++) {
-                        for (func = 0; func < 8; func++) {
-                                u32 class;
-                                u32 vendor;
-                                class = read_pci_config(num, slot, func,
-                                                        PCI_CLASS_REVISION);
-                                if (class == 0xffffffff)
-                                        break;
-
-                                if ((class >> 16) != PCI_CLASS_BRIDGE_PCI)
-                                        continue;
-
-                                vendor = read_pci_config(num, slot, func,
-                                                         PCI_VENDOR_ID);
-
-                                if (check_bridge(vendor & 0xffff, vendor >> 16))
-                                        return;
-                        }
-
-                }
-        }
-}
diff --git a/arch/x86/kernel/acpi/processor.c b/arch/x86/kernel/acpi/processor.c
index b54fded49834..2ed0a4ce62f0 100644
--- a/arch/x86/kernel/acpi/processor.c
+++ b/arch/x86/kernel/acpi/processor.c
@@ -63,7 +63,7 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c)
 void arch_acpi_processor_init_pdc(struct acpi_processor *pr)
 {
         unsigned int cpu = pr->id;
-        struct cpuinfo_x86 *c = cpu_data + cpu;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
 
         pr->pdc = NULL;
         if (c->x86_vendor == X86_VENDOR_INTEL)
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 3bd2688bd443..d6405e0842b5 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -357,14 +357,14 @@ void alternatives_smp_switch(int smp)
         if (smp) {
                 printk(KERN_INFO "SMP alternatives: switching to SMP code\n");
                 clear_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
-                clear_bit(X86_FEATURE_UP, cpu_data[0].x86_capability);
+                clear_bit(X86_FEATURE_UP, cpu_data(0).x86_capability);
                 list_for_each_entry(mod, &smp_alt_modules, next)
                         alternatives_smp_lock(mod->locks, mod->locks_end,
                                               mod->text, mod->text_end);
         } else {
                 printk(KERN_INFO "SMP alternatives: switching to UP code\n");
                 set_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
-                set_bit(X86_FEATURE_UP, cpu_data[0].x86_capability);
+                set_bit(X86_FEATURE_UP, cpu_data(0).x86_capability);
                 list_for_each_entry(mod, &smp_alt_modules, next)
                         alternatives_smp_unlock(mod->locks, mod->locks_end,
                                                 mod->text, mod->text_end);
@@ -432,7 +432,7 @@ void __init alternative_instructions(void)
                 if (1 == num_possible_cpus()) {
                         printk(KERN_INFO "SMP alternatives: switching to UP code\n");
                         set_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
-                        set_bit(X86_FEATURE_UP, cpu_data[0].x86_capability);
+                        set_bit(X86_FEATURE_UP, cpu_data(0).x86_capability);
                         alternatives_smp_unlock(__smp_locks, __smp_locks_end,
                                                 _text, _etext);
                 }
diff --git a/arch/x86/kernel/cpu/cpufreq/Kconfig b/arch/x86/kernel/cpu/cpufreq/Kconfig_32
index d8c6f132dc7a..d8c6f132dc7a 100644
--- a/arch/x86/kernel/cpu/cpufreq/Kconfig
+++ b/arch/x86/kernel/cpu/cpufreq/Kconfig_32
diff --git a/arch/x86/kernel/cpufreq/Kconfig b/arch/x86/kernel/cpu/cpufreq/Kconfig_64
index a3fd51926cbd..9c9699fdcf52 100644
--- a/arch/x86/kernel/cpufreq/Kconfig
+++ b/arch/x86/kernel/cpu/cpufreq/Kconfig_64
@@ -19,7 +19,7 @@ config X86_POWERNOW_K8
           To compile this driver as a module, choose M here: the
           module will be called powernow-k8.
 
-          For details, take a look at <file:Documentation/cpu-freq/>. 
+          For details, take a look at <file:Documentation/cpu-freq/>.
 
           If in doubt, say N.
 
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index 2ca43ba32bc0..fea0af0476b9 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -77,7 +77,7 @@ static unsigned int acpi_pstate_strict;
 
 static int check_est_cpu(unsigned int cpuid)
 {
-        struct cpuinfo_x86 *cpu = &cpu_data[cpuid];
+        struct cpuinfo_x86 *cpu = &cpu_data(cpuid);
 
         if (cpu->x86_vendor != X86_VENDOR_INTEL ||
             !cpu_has(cpu, X86_FEATURE_EST))
@@ -560,7 +560,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
         unsigned int cpu = policy->cpu;
         struct acpi_cpufreq_data *data;
         unsigned int result = 0;
-        struct cpuinfo_x86 *c = &cpu_data[policy->cpu];
+        struct cpuinfo_x86 *c = &cpu_data(policy->cpu);
         struct acpi_processor_performance *perf;
 
         dprintk("acpi_cpufreq_cpu_init\n");
diff --git a/arch/x86/kernel/cpu/cpufreq/e_powersaver.c b/arch/x86/kernel/cpu/cpufreq/e_powersaver.c
index c11baaf9f2b4..326a4c81f684 100644
--- a/arch/x86/kernel/cpu/cpufreq/e_powersaver.c
+++ b/arch/x86/kernel/cpu/cpufreq/e_powersaver.c
@@ -305,7 +305,7 @@ static struct cpufreq_driver eps_driver = {
 
 static int __init eps_init(void)
 {
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
 
         /* This driver will work only on Centaur C7 processors with
          * Enhanced SpeedStep/PowerSaver registers */
diff --git a/arch/x86/kernel/cpu/cpufreq/elanfreq.c b/arch/x86/kernel/cpu/cpufreq/elanfreq.c
index 1e7ae7dafcf6..94619c22f563 100644
--- a/arch/x86/kernel/cpu/cpufreq/elanfreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/elanfreq.c
@@ -199,7 +199,7 @@ static int elanfreq_target (struct cpufreq_policy *policy,
 
 static int elanfreq_cpu_init(struct cpufreq_policy *policy)
 {
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
         unsigned int i;
         int result;
 
@@ -280,7 +280,7 @@ static struct cpufreq_driver elanfreq_driver = {
 
 static int __init elanfreq_init(void)
 {
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
 
         /* Test if we have the right hardware */
         if ((c->x86_vendor != X86_VENDOR_AMD) ||
diff --git a/arch/x86/kernel/cpu/cpufreq/longhaul.c b/arch/x86/kernel/cpu/cpufreq/longhaul.c
index 5045f5d583c8..749d00cb2ebd 100644
--- a/arch/x86/kernel/cpu/cpufreq/longhaul.c
+++ b/arch/x86/kernel/cpu/cpufreq/longhaul.c
@@ -780,7 +780,7 @@ static int longhaul_setup_southbridge(void)
 
 static int __init longhaul_cpu_init(struct cpufreq_policy *policy)
 {
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
         char *cpuname=NULL;
         int ret;
         u32 lo, hi;
@@ -959,7 +959,7 @@ static struct cpufreq_driver longhaul_driver = {
 
 static int __init longhaul_init(void)
 {
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
 
         if (c->x86_vendor != X86_VENDOR_CENTAUR || c->x86 != 6)
                 return -ENODEV;
diff --git a/arch/x86/kernel/cpu/cpufreq/longrun.c b/arch/x86/kernel/cpu/cpufreq/longrun.c
index b2689514295a..af4a867a097c 100644
--- a/arch/x86/kernel/cpu/cpufreq/longrun.c
+++ b/arch/x86/kernel/cpu/cpufreq/longrun.c
@@ -172,7 +172,7 @@ static unsigned int __init longrun_determine_freqs(unsigned int *low_freq,
         u32 save_lo, save_hi;
         u32 eax, ebx, ecx, edx;
         u32 try_hi;
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
 
         if (!low_freq || !high_freq)
                 return -EINVAL;
@@ -298,7 +298,7 @@ static struct cpufreq_driver longrun_driver = {
  */
 static int __init longrun_init(void)
 {
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
 
         if (c->x86_vendor != X86_VENDOR_TRANSMETA ||
             !cpu_has(c, X86_FEATURE_LONGRUN))
diff --git a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
index 793eae854f4f..14791ec55cfd 100644
--- a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
+++ b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
@@ -195,7 +195,7 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
 
 static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
 {
-        struct cpuinfo_x86 *c = &cpu_data[policy->cpu];
+        struct cpuinfo_x86 *c = &cpu_data(policy->cpu);
         int cpuid = 0;
         unsigned int i;
 
@@ -279,7 +279,7 @@ static struct cpufreq_driver p4clockmod_driver = {
 
 static int __init cpufreq_p4_init(void)
 {
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
         int ret;
 
         /*
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k6.c b/arch/x86/kernel/cpu/cpufreq/powernow-k6.c
index a07f6d84033a..eb9b62b0830c 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k6.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k6.c
@@ -215,7 +215,7 @@ static struct cpufreq_driver powernow_k6_driver = {
  */
 static int __init powernow_k6_init(void)
 {
-        struct cpuinfo_x86      *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
 
         if ((c->x86_vendor != X86_VENDOR_AMD) || (c->x86 != 5) ||
                 ((c->x86_model != 12) && (c->x86_model != 13)))
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k7.c b/arch/x86/kernel/cpu/cpufreq/powernow-k7.c
index f3686a5f2308..b5a9863d6cdc 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k7.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k7.c
@@ -114,7 +114,7 @@ static int check_fsb(unsigned int fsbspeed)
 
 static int check_powernow(void)
 {
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
         unsigned int maxei, eax, ebx, ecx, edx;
 
         if ((c->x86_vendor != X86_VENDOR_AMD) || (c->x86 !=6)) {
diff --git a/arch/x86/kernel/cpu/cpufreq/sc520_freq.c b/arch/x86/kernel/cpu/cpufreq/sc520_freq.c
index d9f3e90a7ae0..42da9bd677d6 100644
--- a/arch/x86/kernel/cpu/cpufreq/sc520_freq.c
+++ b/arch/x86/kernel/cpu/cpufreq/sc520_freq.c
@@ -102,7 +102,7 @@ static int sc520_freq_target (struct cpufreq_policy *policy,
 
 static int sc520_freq_cpu_init(struct cpufreq_policy *policy)
 {
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
         int result;
 
         /* capability check */
@@ -151,7 +151,7 @@ static struct cpufreq_driver sc520_freq_driver = {
 
 static int __init sc520_freq_init(void)
 {
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
         int err;
 
         /* Test if we have the right hardware */
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
index 811d47438546..3031f1196192 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -230,7 +230,7 @@ static struct cpu_model models[] =
 
 static int centrino_cpu_init_table(struct cpufreq_policy *policy)
 {
-        struct cpuinfo_x86 *cpu = &cpu_data[policy->cpu];
+        struct cpuinfo_x86 *cpu = &cpu_data(policy->cpu);
         struct cpu_model *model;
 
         for(model = models; model->cpu_id != NULL; model++)
@@ -340,7 +340,7 @@ static unsigned int get_cur_freq(unsigned int cpu)
 
 static int centrino_cpu_init(struct cpufreq_policy *policy)
 {
-        struct cpuinfo_x86 *cpu = &cpu_data[policy->cpu];
+        struct cpuinfo_x86 *cpu = &cpu_data(policy->cpu);
         unsigned freq;
         unsigned l, h;
         int ret;
@@ -612,7 +612,7 @@ static struct cpufreq_driver centrino_driver = {
  */
 static int __init centrino_init(void)
 {
-        struct cpuinfo_x86 *cpu = cpu_data;
+        struct cpuinfo_x86 *cpu = &cpu_data(0);
 
         if (!cpu_has(cpu, X86_FEATURE_EST))
                 return -ENODEV;
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
index b1acc8ce3167..76c3ab0da468 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c
@@ -228,7 +228,7 @@ EXPORT_SYMBOL_GPL(speedstep_get_processor_frequency);
 
 unsigned int speedstep_detect_processor (void)
 {
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
         u32 ebx, msr_lo, msr_hi;
 
         dprintk("x86: %x, model: %x\n", c->x86, c->x86_model);
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 297a24116949..9921b01fe199 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -295,7 +295,7 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
         unsigned int new_l2 = 0, new_l3 = 0, i; /* Cache sizes from cpuid(4) */
         unsigned int l2_id = 0, l3_id = 0, num_threads_sharing, index_msb;
 #ifdef CONFIG_X86_HT
-        unsigned int cpu = (c == &boot_cpu_data) ? 0 : (c - cpu_data);
+        unsigned int cpu = c->cpu_index;
 #endif
 
         if (c->cpuid_level > 3) {
@@ -417,14 +417,14 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
         if (new_l2) {
                 l2 = new_l2;
 #ifdef CONFIG_X86_HT
-                cpu_llc_id[cpu] = l2_id;
+                per_cpu(cpu_llc_id, cpu) = l2_id;
 #endif
         }
 
         if (new_l3) {
                 l3 = new_l3;
 #ifdef CONFIG_X86_HT
-                cpu_llc_id[cpu] = l3_id;
+                per_cpu(cpu_llc_id, cpu) = l3_id;
 #endif
         }
 
@@ -459,7 +459,7 @@ static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
         struct _cpuid4_info     *this_leaf, *sibling_leaf;
         unsigned long num_threads_sharing;
         int index_msb, i;
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
 
         this_leaf = CPUID4_INFO_IDX(cpu, index);
         num_threads_sharing = 1 + this_leaf->eax.split.num_threads_sharing;
@@ -470,8 +470,8 @@ static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
                 index_msb = get_count_order(num_threads_sharing);
 
                 for_each_online_cpu(i) {
-                        if (c[i].apicid >> index_msb ==
-                            c[cpu].apicid >> index_msb) {
+                        if (cpu_data(i).apicid >> index_msb ==
+                            c->apicid >> index_msb) {
                                 cpu_set(i, this_leaf->shared_cpu_map);
                                 if (i != cpu && cpuid4_info[i])  {
                                         sibling_leaf = CPUID4_INFO_IDX(i, index);
diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c
index 54cdbf1a40f1..c02541e6e653 100644
--- a/arch/x86/kernel/cpu/perfctr-watchdog.c
+++ b/arch/x86/kernel/cpu/perfctr-watchdog.c
@@ -120,7 +120,9 @@ int reserve_perfctr_nmi(unsigned int msr)
         unsigned int counter;
 
         counter = nmi_perfctr_msr_to_bit(msr);
-        BUG_ON(counter > NMI_MAX_COUNTER_BITS);
+        /* register not managed by the allocator? */
+        if (counter > NMI_MAX_COUNTER_BITS)
+                return 1;
 
         if (!test_and_set_bit(counter, perfctr_nmi_owner))
                 return 1;
@@ -132,7 +134,9 @@ void release_perfctr_nmi(unsigned int msr)
         unsigned int counter;
 
         counter = nmi_perfctr_msr_to_bit(msr);
-        BUG_ON(counter > NMI_MAX_COUNTER_BITS);
+        /* register not managed by the allocator? */
+        if (counter > NMI_MAX_COUNTER_BITS)
+                return;
 
         clear_bit(counter, perfctr_nmi_owner);
 }
@@ -142,7 +146,9 @@ int reserve_evntsel_nmi(unsigned int msr)
         unsigned int counter;
 
         counter = nmi_evntsel_msr_to_bit(msr);
-        BUG_ON(counter > NMI_MAX_COUNTER_BITS);
+        /* register not managed by the allocator? */
+        if (counter > NMI_MAX_COUNTER_BITS)
+                return 1;
 
         if (!test_and_set_bit(counter, evntsel_nmi_owner))
                 return 1;
@@ -154,7 +160,9 @@ void release_evntsel_nmi(unsigned int msr)
         unsigned int counter;
 
         counter = nmi_evntsel_msr_to_bit(msr);
-        BUG_ON(counter > NMI_MAX_COUNTER_BITS);
+        /* register not managed by the allocator? */
+        if (counter > NMI_MAX_COUNTER_BITS)
+                return;
 
         clear_bit(counter, evntsel_nmi_owner);
 }
diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c
index 879a0f789b1e..2d42b414b777 100644
--- a/arch/x86/kernel/cpu/proc.c
+++ b/arch/x86/kernel/cpu/proc.c
@@ -85,12 +85,13 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                 /* nothing */
         };
         struct cpuinfo_x86 *c = v;
-        int i, n = c - cpu_data;
+        int i, n = 0;
         int fpu_exception;
 
 #ifdef CONFIG_SMP
         if (!cpu_online(n))
                 return 0;
+        n = c->cpu_index;
 #endif
         seq_printf(m, "processor\t: %d\n"
                 "vendor_id\t: %s\n"
@@ -175,11 +176,15 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 
 static void *c_start(struct seq_file *m, loff_t *pos)
 {
-        return *pos < NR_CPUS ? cpu_data + *pos : NULL;
+        if (*pos == 0)  /* just in case, cpu 0 is not the first */
+                *pos = first_cpu(cpu_possible_map);
+        if ((*pos) < NR_CPUS && cpu_possible(*pos))
+                return &cpu_data(*pos);
+        return NULL;
 }
 static void *c_next(struct seq_file *m, void *v, loff_t *pos)
 {
-        ++*pos;
+        *pos = next_cpu(*pos, cpu_possible_map);
         return c_start(m, pos);
 }
 static void c_stop(struct seq_file *m, void *v)
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index 70dcf912d9fb..05c9936a16cc 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -114,7 +114,7 @@ static ssize_t cpuid_read(struct file *file, char __user *buf,
 static int cpuid_open(struct inode *inode, struct file *file)
 {
         unsigned int cpu = iminor(file->f_path.dentry->d_inode);
-        struct cpuinfo_x86 *c = &(cpu_data)[cpu];
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
 
         if (cpu >= NR_CPUS || !cpu_online(cpu))
                 return -ENXIO;  /* No such CPU */
@@ -134,15 +134,18 @@ static const struct file_operations cpuid_fops = {
         .open = cpuid_open,
 };
 
-static int __cpuinit cpuid_device_create(int i)
+static __cpuinit int cpuid_device_create(int cpu)
 {
-        int err = 0;
         struct device *dev;
 
-        dev = device_create(cpuid_class, NULL, MKDEV(CPUID_MAJOR, i), "cpu%d",i);
-        if (IS_ERR(dev))
-                err = PTR_ERR(dev);
-        return err;
+        dev = device_create(cpuid_class, NULL, MKDEV(CPUID_MAJOR, cpu),
+                            "cpu%d", cpu);
+        return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static void cpuid_device_destroy(int cpu)
+{
+        device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
 }
 
 static int __cpuinit cpuid_class_cpu_callback(struct notifier_block *nfb,
@@ -150,18 +153,21 @@ static int __cpuinit cpuid_class_cpu_callback(struct notifier_block *nfb,
                                               void *hcpu)
 {
         unsigned int cpu = (unsigned long)hcpu;
+        int err = 0;
 
         switch (action) {
-        case CPU_ONLINE:
-        case CPU_ONLINE_FROZEN:
-                cpuid_device_create(cpu);
+        case CPU_UP_PREPARE:
+        case CPU_UP_PREPARE_FROZEN:
+                err = cpuid_device_create(cpu);
                 break;
+        case CPU_UP_CANCELED:
+        case CPU_UP_CANCELED_FROZEN:
         case CPU_DEAD:
         case CPU_DEAD_FROZEN:
-                device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
+                cpuid_device_destroy(cpu);
                 break;
         }
-        return NOTIFY_OK;
+        return err ? NOTIFY_BAD : NOTIFY_OK;
 }
 
 static struct notifier_block __cpuinitdata cpuid_class_cpu_notifier =
@@ -198,7 +204,7 @@ static int __init cpuid_init(void)
 out_class:
         i = 0;
         for_each_online_cpu(i) {
-                device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, i));
+                cpuid_device_destroy(i);
         }
         class_destroy(cpuid_class);
 out_chrdev:
@@ -212,7 +218,7 @@ static void __exit cpuid_exit(void)
         int cpu = 0;
 
         for_each_online_cpu(cpu)
-                device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
+                cpuid_device_destroy(cpu);
         class_destroy(cpuid_class);
         unregister_chrdev(CPUID_MAJOR, "cpu/cpuid");
         unregister_hotcpu_notifier(&cpuid_class_cpu_notifier);
diff --git a/arch/x86/kernel/early-quirks_64.c b/arch/x86/kernel/early-quirks.c
index 13aa4fd728f3..dc34acbd54aa 100644
--- a/arch/x86/kernel/early-quirks_64.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -13,9 +13,13 @@
 #include <linux/acpi.h>
 #include <linux/pci_ids.h>
 #include <asm/pci-direct.h>
-#include <asm/proto.h>
-#include <asm/iommu.h>
 #include <asm/dma.h>
+#include <asm/io_apic.h>
+#include <asm/apic.h>
+
+#ifdef CONFIG_IOMMU
+#include <asm/iommu.h>
+#endif
 
 static void __init via_bugs(void)
 {
@@ -23,7 +27,8 @@ static void __init via_bugs(void)
         if ((end_pfn > MAX_DMA32_PFN ||  force_iommu) &&
             !iommu_aperture_allowed) {
                 printk(KERN_INFO
-  "Looks like a VIA chipset. Disabling IOMMU. Override with iommu=allowed\n");
+                       "Looks like a VIA chipset. Disabling IOMMU."
+                       " Override with iommu=allowed\n");
                 iommu_aperture_disabled = 1;
         }
 #endif
@@ -40,6 +45,7 @@ static int __init nvidia_hpet_check(struct acpi_table_header *header)
 static void __init nvidia_bugs(void)
 {
 #ifdef CONFIG_ACPI
+#ifdef CONFIG_X86_IO_APIC
         /*
          * All timer overrides on Nvidia are
          * wrong unless HPET is enabled.
@@ -59,17 +65,20 @@ static void __init nvidia_bugs(void)
                         "try acpi_use_timer_override\n");
         }
 #endif
+#endif
         /* RED-PEN skip them on mptables too? */
 
 }
 
 static void __init ati_bugs(void)
 {
+#ifdef CONFIG_X86_IO_APIC
         if (timer_over_8254 == 1) {
                 timer_over_8254 = 0;
                 printk(KERN_INFO
-                "ATI board detected. Disabling timer routing over 8254.\n");
+                "ATI board detected. Disabling timer routing over 8254.\n");
         }
+#endif
 }
 
 struct chipset {
@@ -104,7 +113,7 @@ void __init early_quirks(void)
                                 if (class == 0xffffffff)
                                         break;
 
-                                if ((class >> 16) != PCI_CLASS_BRIDGE_PCI)
+                                if ((class >> 16) != PCI_CLASS_BRIDGE_PCI)
                                         continue;
 
                                 vendor = read_pci_config(num, slot, func,
diff --git a/arch/x86/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c
index 4ae03e3e8294..ce703e21c912 100644
--- a/arch/x86/kernel/genapic_64.c
+++ b/arch/x86/kernel/genapic_64.c
@@ -24,10 +24,19 @@
 #include <acpi/acpi_bus.h>
 #endif
 
-/* which logical CPU number maps to which CPU (physical APIC ID) */
-u8 x86_cpu_to_apicid[NR_CPUS] __read_mostly
+/*
+ * which logical CPU number maps to which CPU (physical APIC ID)
+ *
+ * The following static array is used during kernel startup
+ * and the x86_cpu_to_apicid_ptr contains the address of the
+ * array during this time.  Is it zeroed when the per_cpu
+ * data area is removed.
+ */
+u8 x86_cpu_to_apicid_init[NR_CPUS] __initdata
                                         = { [0 ... NR_CPUS-1] = BAD_APICID };
-EXPORT_SYMBOL(x86_cpu_to_apicid);
+void *x86_cpu_to_apicid_ptr;
+DEFINE_PER_CPU(u8, x86_cpu_to_apicid) = BAD_APICID;
+EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid);
 
 struct genapic __read_mostly *genapic = &apic_flat;
 
diff --git a/arch/x86/kernel/genapic_flat_64.c b/arch/x86/kernel/genapic_flat_64.c
index 91c7526768ee..07352b74bda6 100644
--- a/arch/x86/kernel/genapic_flat_64.c
+++ b/arch/x86/kernel/genapic_flat_64.c
@@ -172,7 +172,7 @@ static unsigned int physflat_cpu_mask_to_apicid(cpumask_t cpumask)
          */
         cpu = first_cpu(cpumask);
         if ((unsigned)cpu < NR_CPUS)
-                return x86_cpu_to_apicid[cpu];
+                return per_cpu(x86_cpu_to_apicid, cpu);
         else
                 return BAD_APICID;
 }
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index a7eee0a4751d..6b3469311e42 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -58,7 +58,7 @@ void __init x86_64_start_kernel(char * real_mode_data)
 
         for (i = 0; i < IDT_ENTRIES; i++)
                 set_intr_gate(i, early_idt_handler);
-        asm volatile("lidt %0" :: "m" (idt_descr));
+        load_idt((const struct desc_ptr *)&idt_descr);
 
         early_printk("Kernel alive\n");
 
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 772afab8f196..53303f2e5475 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -69,12 +69,15 @@ static inline void hpet_clear_mapping(void)
  * HPET command line enable / disable
  */
 static int boot_hpet_disable;
+int hpet_force_user;
 
 static int __init hpet_setup(char* str)
 {
         if (str) {
                 if (!strncmp("disable", str, 7))
                         boot_hpet_disable = 1;
+                if (!strncmp("force", str, 5))
+                        hpet_force_user = 1;
         }
         return 1;
 }
diff --git a/arch/x86/kernel/i8259_32.c b/arch/x86/kernel/i8259_32.c
index d34a10cc13a7..f634fc715c99 100644
--- a/arch/x86/kernel/i8259_32.c
+++ b/arch/x86/kernel/i8259_32.c
@@ -403,7 +403,8 @@ void __init native_init_IRQ(void)
                 int vector = FIRST_EXTERNAL_VECTOR + i;
                 if (i >= NR_IRQS)
                         break;
-                if (vector != SYSCALL_VECTOR) 
+                /* SYSCALL_VECTOR was reserved in trap_init. */
+                if (!test_bit(vector, used_vectors))
                         set_intr_gate(vector, interrupt[i]);
         }
 
diff --git a/arch/x86/kernel/init_task_32.c b/arch/x86/kernel/init_task.c
index d26fc063a760..468c9c437842 100644
--- a/arch/x86/kernel/init_task_32.c
+++ b/arch/x86/kernel/init_task.c
@@ -15,7 +15,6 @@ static struct files_struct init_files = INIT_FILES;
 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
 struct mm_struct init_mm = INIT_MM(init_mm);
-
 EXPORT_SYMBOL(init_mm);
 
 /*
@@ -25,7 +24,7 @@ EXPORT_SYMBOL(init_mm);
  * way process stacks are handled. This is done by having a special
  * "init_task" linker map entry..
  */
-union thread_union init_thread_union 
+union thread_union init_thread_union
         __attribute__((__section__(".data.init_task"))) =
                 { INIT_THREAD_INFO(init_task) };
 
@@ -35,12 +34,14 @@ union thread_union init_thread_union
  * All other task structs will be allocated on slabs in fork.c
  */
 struct task_struct init_task = INIT_TASK(init_task);
-
 EXPORT_SYMBOL(init_task);
 
 /*
  * per-CPU TSS segments. Threads are completely 'soft' on Linux,
- * no more per-task TSS's.
- */ 
+ * no more per-task TSS's. The TSS size is kept cacheline-aligned
+ * so they are allowed to end up in the .data.cacheline_aligned
+ * section. Since TSS's are completely CPU-local, we want them
+ * on exact cacheline boundaries, to eliminate cacheline ping-pong.
+ */
 DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;
 
diff --git a/arch/x86/kernel/init_task_64.c b/arch/x86/kernel/init_task_64.c
deleted file mode 100644
index 4ff33d4f8551..000000000000
--- a/arch/x86/kernel/init_task_64.c
+++ /dev/null
@@ -1,54 +0,0 @@
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/init_task.h>
-#include <linux/fs.h>
-#include <linux/mqueue.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/desc.h>
-
-static struct fs_struct init_fs = INIT_FS;
-static struct files_struct init_files = INIT_FILES;
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct mm_struct init_mm = INIT_MM(init_mm);
-
-EXPORT_SYMBOL(init_mm);
-
-/*
- * Initial task structure.
- *
- * We need to make sure that this is 8192-byte aligned due to the
- * way process stacks are handled. This is done by having a special
- * "init_task" linker map entry..
- */
-union thread_union init_thread_union 
-        __attribute__((__section__(".data.init_task"))) =
-                { INIT_THREAD_INFO(init_task) };
-
-/*
- * Initial task structure.
- *
- * All other task structs will be allocated on slabs in fork.c
- */
-struct task_struct init_task = INIT_TASK(init_task);
-
-EXPORT_SYMBOL(init_task);
-/*
- * per-CPU TSS segments. Threads are completely 'soft' on Linux,
- * no more per-task TSS's. The TSS size is kept cacheline-aligned
- * so they are allowed to end up in the .data.cacheline_aligned
- * section. Since TSS's are completely CPU-local, we want them
- * on exact cacheline boundaries, to eliminate cacheline ping-pong.
- */ 
-DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;
-
-/* Copies of the original ist values from the tss are only accessed during
- * debugging, no special alignment required.
- */
-DEFINE_PER_CPU(struct orig_ist, orig_ist);
-
-#define ALIGN_TO_4K __attribute__((section(".data.init_task")))
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index 03e88fc00e5a..f35c6eb33da9 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -1198,7 +1198,7 @@ static u8 irq_vector[NR_IRQ_VECTORS] __read_mostly = { FIRST_DEVICE_VECTOR , 0 }
 static int __assign_irq_vector(int irq)
 {
         static int current_vector = FIRST_DEVICE_VECTOR, current_offset = 0;
-        int vector, offset, i;
+        int vector, offset;
 
         BUG_ON((unsigned)irq >= NR_IRQ_VECTORS);
 
@@ -1215,11 +1215,8 @@ next:
         }
         if (vector == current_vector)
                 return -ENOSPC;
-        if (vector == SYSCALL_VECTOR)
+        if (test_and_set_bit(vector, used_vectors))
                 goto next;
-        for (i = 0; i < NR_IRQ_VECTORS; i++)
-                if (irq_vector[i] == vector)
-                        goto next;
 
         current_vector = vector;
         current_offset = offset;
@@ -2295,6 +2292,12 @@ static inline void __init check_timer(void)
 
 void __init setup_IO_APIC(void)
 {
+        int i;
+
+        /* Reserve all the system vectors. */
+        for (i = FIRST_SYSTEM_VECTOR; i < NR_VECTORS; i++)
+                set_bit(i, used_vectors);
+
         enable_IO_APIC();
 
         if (acpi_ioapic)
diff --git a/arch/x86/kernel/mce_64.c b/arch/x86/kernel/mce_64.c
index 82c85bdff3a1..07bbfe7aa7f7 100644
--- a/arch/x86/kernel/mce_64.c
+++ b/arch/x86/kernel/mce_64.c
@@ -799,7 +799,8 @@ static __cpuinit int mce_create_device(unsigned int cpu)
 {
         int err;
         int i;
-        if (!mce_available(&cpu_data[cpu]))
+
+        if (!mce_available(&cpu_data(cpu)))
                 return -EIO;
 
         memset(&per_cpu(device_mce, cpu).kobj, 0, sizeof(struct kobject));
diff --git a/arch/x86/kernel/mce_amd_64.c b/arch/x86/kernel/mce_amd_64.c
index 0d2afd96aca4..752fb16a817d 100644
--- a/arch/x86/kernel/mce_amd_64.c
+++ b/arch/x86/kernel/mce_amd_64.c
@@ -472,11 +472,11 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
         sprintf(name, "threshold_bank%i", bank);
 
 #ifdef CONFIG_SMP
-        if (cpu_data[cpu].cpu_core_id && shared_bank[bank]) {   /* symlink */
+        if (cpu_data(cpu).cpu_core_id && shared_bank[bank]) {   /* symlink */
                 i = first_cpu(per_cpu(cpu_core_map, cpu));
 
                 /* first core not up yet */
-                if (cpu_data[i].cpu_core_id)
+                if (cpu_data(i).cpu_core_id)
                         goto out;
 
                 /* already linked */
diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c
index 09cf78110358..09c315214a5e 100644
--- a/arch/x86/kernel/microcode.c
+++ b/arch/x86/kernel/microcode.c
@@ -132,7 +132,7 @@ static struct ucode_cpu_info {
 
 static void collect_cpu_info(int cpu_num)
 {
-        struct cpuinfo_x86 *c = cpu_data + cpu_num;
+        struct cpuinfo_x86 *c = &cpu_data(cpu_num);
         struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num;
         unsigned int val[2];
 
@@ -522,7 +522,7 @@ static struct platform_device *microcode_pdev;
 static int cpu_request_microcode(int cpu)
 {
         char name[30];
-        struct cpuinfo_x86 *c = cpu_data + cpu;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
         const struct firmware *firmware;
         void *buf;
         unsigned long size;
@@ -570,7 +570,7 @@ static int cpu_request_microcode(int cpu)
 
 static int apply_microcode_check_cpu(int cpu)
 {
-        struct cpuinfo_x86 *c = cpu_data + cpu;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
         struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
         cpumask_t old;
         unsigned int val[2];
diff --git a/arch/x86/kernel/mpparse_64.c b/arch/x86/kernel/mpparse_64.c
index 8bf0ca03ac8e..ef4aab123581 100644
--- a/arch/x86/kernel/mpparse_64.c
+++ b/arch/x86/kernel/mpparse_64.c
@@ -57,6 +57,8 @@ unsigned long mp_lapic_addr = 0;
 
 /* Processor that is doing the boot up */
 unsigned int boot_cpu_id = -1U;
+EXPORT_SYMBOL(boot_cpu_id);
+
 /* Internal processor count */
 unsigned int num_processors __cpuinitdata = 0;
 
@@ -86,7 +88,7 @@ static int __init mpf_checksum(unsigned char *mp, int len)
         return sum & 0xFF;
 }
 
-static void __cpuinit MP_processor_info (struct mpc_config_processor *m)
+static void __cpuinit MP_processor_info(struct mpc_config_processor *m)
 {
         int cpu;
         cpumask_t tmp_map;
@@ -123,7 +125,18 @@ static void __cpuinit MP_processor_info (struct mpc_config_processor *m)
                 cpu = 0;
         }
         bios_cpu_apicid[cpu] = m->mpc_apicid;
-        x86_cpu_to_apicid[cpu] = m->mpc_apicid;
+        /*
+         * We get called early in the the start_kernel initialization
+         * process when the per_cpu data area is not yet setup, so we
+         * use a static array that is removed after the per_cpu data
+         * area is created.
+         */
+        if (x86_cpu_to_apicid_ptr) {
+                u8 *x86_cpu_to_apicid = (u8 *)x86_cpu_to_apicid_ptr;
+                x86_cpu_to_apicid[cpu] = m->mpc_apicid;
+        } else {
+                per_cpu(x86_cpu_to_apicid, cpu) = m->mpc_apicid;
+        }
 
         cpu_set(cpu, cpu_possible_map);
         cpu_set(cpu, cpu_present_map);
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index e18e516cf549..ee6eba4ecfea 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -112,7 +112,7 @@ static ssize_t msr_write(struct file *file, const char __user *buf,
 static int msr_open(struct inode *inode, struct file *file)
 {
         unsigned int cpu = iminor(file->f_path.dentry->d_inode);
-        struct cpuinfo_x86 *c = &(cpu_data)[cpu];
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
 
         if (cpu >= NR_CPUS || !cpu_online(cpu))
                 return -ENXIO;  /* No such CPU */
diff --git a/arch/x86/kernel/pci-dma_64.c b/arch/x86/kernel/pci-dma_64.c
index b2b42bdb0a15..afaf9f12c032 100644
--- a/arch/x86/kernel/pci-dma_64.c
+++ b/arch/x86/kernel/pci-dma_64.c
@@ -11,7 +11,7 @@
 #include <asm/iommu.h>
 #include <asm/calgary.h>
 
-int iommu_merge __read_mostly = 0;
+int iommu_merge __read_mostly = 1;
 EXPORT_SYMBOL(iommu_merge);
 
 dma_addr_t bad_dma_address __read_mostly;
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 044a47745a5c..7b899584d290 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -295,34 +295,52 @@ static int __init idle_setup(char *str)
 }
 early_param("idle", idle_setup);
 
-void show_regs(struct pt_regs * regs)
+void __show_registers(struct pt_regs *regs, int all)
 {
         unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
         unsigned long d0, d1, d2, d3, d6, d7;
+        unsigned long esp;
+        unsigned short ss, gs;
+
+        if (user_mode_vm(regs)) {
+                esp = regs->esp;
+                ss = regs->xss & 0xffff;
+                savesegment(gs, gs);
+        } else {
+                esp = (unsigned long) (&regs->esp);
+                savesegment(ss, ss);
+                savesegment(gs, gs);
+        }
 
         printk("\n");
-        printk("Pid: %d, comm: %20s\n", task_pid_nr(current), current->comm);
-        printk("EIP: %04x:[<%08lx>] CPU: %d\n",0xffff & regs->xcs,regs->eip, smp_processor_id());
+        printk("Pid: %d, comm: %s %s (%s %.*s)\n",
+                        task_pid_nr(current), current->comm,
+                        print_tainted(), init_utsname()->release,
+                        (int)strcspn(init_utsname()->version, " "),
+                        init_utsname()->version);
+
+        printk("EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
+                        0xffff & regs->xcs, regs->eip, regs->eflags,
+                        smp_processor_id());
         print_symbol("EIP is at %s\n", regs->eip);
 
-        if (user_mode_vm(regs))
-                printk(" ESP: %04x:%08lx",0xffff & regs->xss,regs->esp);
-        printk(" EFLAGS: %08lx    %s  (%s %.*s)\n",
-               regs->eflags, print_tainted(), init_utsname()->release,
-               (int)strcspn(init_utsname()->version, " "),
-               init_utsname()->version);
         printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
-                regs->eax,regs->ebx,regs->ecx,regs->edx);
-        printk("ESI: %08lx EDI: %08lx EBP: %08lx",
-                regs->esi, regs->edi, regs->ebp);
-        printk(" DS: %04x ES: %04x FS: %04x\n",
-               0xffff & regs->xds,0xffff & regs->xes, 0xffff & regs->xfs);
+                regs->eax, regs->ebx, regs->ecx, regs->edx);
+        printk("ESI: %08lx EDI: %08lx EBP: %08lx ESP: %08lx\n",
+                regs->esi, regs->edi, regs->ebp, esp);
+        printk(" DS: %04x ES: %04x FS: %04x GS: %04x SS: %04x\n",
+               regs->xds & 0xffff, regs->xes & 0xffff,
+               regs->xfs & 0xffff, gs, ss);
+
+        if (!all)
+                return;
 
         cr0 = read_cr0();
         cr2 = read_cr2();
         cr3 = read_cr3();
         cr4 = read_cr4_safe();
-        printk("CR0: %08lx CR2: %08lx CR3: %08lx CR4: %08lx\n", cr0, cr2, cr3, cr4);
+        printk("CR0: %08lx CR2: %08lx CR3: %08lx CR4: %08lx\n",
+                        cr0, cr2, cr3, cr4);
 
         get_debugreg(d0, 0);
         get_debugreg(d1, 1);
@@ -330,10 +348,16 @@ void show_regs(struct pt_regs * regs)
         get_debugreg(d3, 3);
         printk("DR0: %08lx DR1: %08lx DR2: %08lx DR3: %08lx\n",
                         d0, d1, d2, d3);
+
         get_debugreg(d6, 6);
         get_debugreg(d7, 7);
-        printk("DR6: %08lx DR7: %08lx\n", d6, d7);
+        printk("DR6: %08lx DR7: %08lx\n",
+                        d6, d7);
+}
 
+void show_regs(struct pt_regs *regs)
+{
+        __show_registers(regs, 1);
         show_trace(NULL, regs, &regs->esp);
 }
 
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index d769e204f942..a4ce1911efdf 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -45,9 +45,12 @@ static void __devinit quirk_intel_irqbalance(struct pci_dev *dev)
         if (!(config & 0x2))
                 pci_write_config_byte(dev, 0xf4, config);
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_E7320_MCH,  quirk_intel_irqbalance);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_E7525_MCH,  quirk_intel_irqbalance);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_E7520_MCH,  quirk_intel_irqbalance);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH,
+                        quirk_intel_irqbalance);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH,
+                        quirk_intel_irqbalance);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH,
+                        quirk_intel_irqbalance);
 #endif
 
 #if defined(CONFIG_HPET_TIMER)
@@ -56,7 +59,8 @@ unsigned long force_hpet_address;
 static enum {
         NONE_FORCE_HPET_RESUME,
         OLD_ICH_FORCE_HPET_RESUME,
-        ICH_FORCE_HPET_RESUME
+        ICH_FORCE_HPET_RESUME,
+        VT8237_FORCE_HPET_RESUME
 } force_hpet_resume_type;
 
 static void __iomem *rcba_base;
@@ -146,17 +150,17 @@ static void ich_force_enable_hpet(struct pci_dev *dev)
 }
 
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0,
-                         ich_force_enable_hpet);
+                         ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1,
-                         ich_force_enable_hpet);
+                         ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0,
-                         ich_force_enable_hpet);
+                         ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1,
-                         ich_force_enable_hpet);
+                         ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31,
-                         ich_force_enable_hpet);
+                         ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1,
-                         ich_force_enable_hpet);
+                         ich_force_enable_hpet);
 
 
 static struct pci_dev *cached_dev;
@@ -232,10 +236,91 @@ static void old_ich_force_enable_hpet(struct pci_dev *dev)
         printk(KERN_DEBUG "Failed to force enable HPET\n");
 }
 
+/*
+ * Undocumented chipset features. Make sure that the user enforced
+ * this.
+ */
+static void old_ich_force_enable_hpet_user(struct pci_dev *dev)
+{
+        if (hpet_force_user)
+                old_ich_force_enable_hpet(dev);
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0,
+                         old_ich_force_enable_hpet_user);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12,
+                         old_ich_force_enable_hpet_user);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0,
+                         old_ich_force_enable_hpet_user);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12,
+                         old_ich_force_enable_hpet_user);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0,
-                         old_ich_force_enable_hpet);
+                         old_ich_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_12,
-                         old_ich_force_enable_hpet);
+                         old_ich_force_enable_hpet);
+
+
+static void vt8237_force_hpet_resume(void)
+{
+        u32 val;
+
+        if (!force_hpet_address || !cached_dev)
+                return;
+
+        val = 0xfed00000 | 0x80;
+        pci_write_config_dword(cached_dev, 0x68, val);
+
+        pci_read_config_dword(cached_dev, 0x68, &val);
+        if (val & 0x80)
+                printk(KERN_DEBUG "Force enabled HPET at resume\n");
+        else
+                BUG();
+}
+
+static void vt8237_force_enable_hpet(struct pci_dev *dev)
+{
+        u32 uninitialized_var(val);
+
+        if (!hpet_force_user || hpet_address || force_hpet_address)
+                return;
+
+        pci_read_config_dword(dev, 0x68, &val);
+        /*
+         * Bit 7 is HPET enable bit.
+         * Bit 31:10 is HPET base address (contrary to what datasheet claims)
+         */
+        if (val & 0x80) {
+                force_hpet_address = (val & ~0x3ff);
+                printk(KERN_DEBUG "HPET at base address 0x%lx\n",
+                               force_hpet_address);
+                return;
+        }
+
+        /*
+         * HPET is disabled. Trying enabling at FED00000 and check
+         * whether it sticks
+         */
+        val = 0xfed00000 | 0x80;
+        pci_write_config_dword(dev, 0x68, val);
+
+        pci_read_config_dword(dev, 0x68, &val);
+        if (val & 0x80) {
+                force_hpet_address = (val & ~0x3ff);
+                printk(KERN_DEBUG "Force enabled HPET at base address 0x%lx\n",
+                               force_hpet_address);
+                cached_dev = dev;
+                force_hpet_resume_type = VT8237_FORCE_HPET_RESUME;
+                return;
+        }
+
+        printk(KERN_DEBUG "Failed to force enable HPET\n");
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235,
+                         vt8237_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
+                         vt8237_force_enable_hpet);
+
 
 void force_hpet_resume(void)
 {
@@ -246,6 +331,9 @@ void force_hpet_resume(void)
             case OLD_ICH_FORCE_HPET_RESUME:
                 return old_ich_force_hpet_resume();
 
+            case VT8237_FORCE_HPET_RESUME:
+                return vt8237_force_hpet_resume();
+
             default:
                 break;
         }
diff --git a/arch/x86/kernel/reboot_64.c b/arch/x86/kernel/reboot_64.c
index 368db2b9c5ac..776eb06b6512 100644
--- a/arch/x86/kernel/reboot_64.c
+++ b/arch/x86/kernel/reboot_64.c
@@ -11,6 +11,7 @@
 #include <linux/sched.h>
 #include <asm/io.h>
 #include <asm/delay.h>
+#include <asm/desc.h>
 #include <asm/hw_irq.h>
 #include <asm/system.h>
 #include <asm/pgtable.h>
@@ -136,7 +137,7 @@ void machine_emergency_restart(void)
                 }
 
                 case BOOT_TRIPLE: 
-                        __asm__ __volatile__("lidt (%0)": :"r" (&no_idt));
+                        load_idt((const struct desc_ptr *)&no_idt);
                         __asm__ __volatile__("int3");
 
                         reboot_type = BOOT_KBD;
diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c
index 8b30b26ad069..1a07bbea7be3 100644
--- a/arch/x86/kernel/reboot_fixups_32.c
+++ b/arch/x86/kernel/reboot_fixups_32.c
@@ -12,6 +12,7 @@
 #include <linux/interrupt.h>
 #include <asm/reboot_fixups.h>
 #include <asm/msr.h>
+#include <asm/geode.h>
 
 static void cs5530a_warm_reset(struct pci_dev *dev)
 {
@@ -24,11 +25,8 @@ static void cs5530a_warm_reset(struct pci_dev *dev)
 
 static void cs5536_warm_reset(struct pci_dev *dev)
 {
-        /*
-         * 6.6.2.12 Soft Reset (DIVIL_SOFT_RESET)
-         * writing 1 to the LSB of this MSR causes a hard reset.
-         */
-        wrmsrl(0x51400017, 1ULL);
+        /* writing 1 to the LSB of this MSR causes a hard reset */
+        wrmsrl(MSR_DIVIL_SOFT_RESET, 1ULL);
         udelay(50); /* shouldn't get here but be safe and spin a while */
 }
 
diff --git a/arch/x86/kernel/setup64.c b/arch/x86/kernel/setup64.c
index ba9188235057..3558ac78c926 100644
--- a/arch/x86/kernel/setup64.c
+++ b/arch/x86/kernel/setup64.c
@@ -185,6 +185,12 @@ void __cpuinit check_efer(void)
 unsigned long kernel_eflags;
 
 /*
+ * Copies of the original ist values from the tss are only accessed during
+ * debugging, no special alignment required.
+ */
+DEFINE_PER_CPU(struct orig_ist, orig_ist);
+
+/*
  * cpu_init() initializes state that is per-CPU. Some data is already
  * initialized (naturally) in the bootstrap process, such as the GDT
  * and IDT. We reload them nevertheless, this function acts as a
@@ -224,8 +230,8 @@ void __cpuinit cpu_init (void)
                 memcpy(cpu_gdt(cpu), cpu_gdt_table, GDT_SIZE);
 
         cpu_gdt_descr[cpu].size = GDT_SIZE;
-        asm volatile("lgdt %0" :: "m" (cpu_gdt_descr[cpu]));
-        asm volatile("lidt %0" :: "m" (idt_descr));
+        load_gdt((const struct desc_ptr *)&cpu_gdt_descr[cpu]);
+        load_idt((const struct desc_ptr *)&idt_descr);
 
         memset(me->thread.tls_array, 0, GDT_ENTRY_TLS_ENTRIES * 8);
         syscall_init();
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 18e6eaf138ce..ba2e165a8a0f 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -661,9 +661,7 @@ void __init setup_arch(char **cmdline_p)
 #endif
 
 #ifdef CONFIG_PCI
-#ifdef CONFIG_X86_IO_APIC
-        check_acpi_pci();       /* Checks more than just ACPI actually */
-#endif
+        early_quirks();
 #endif
 
 #ifdef CONFIG_ACPI
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index cdcba6975226..31322d42eaae 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -302,6 +302,11 @@ void __init setup_arch(char **cmdline_p)
 
         dmi_scan_machine();
 
+#ifdef CONFIG_SMP
+        /* setup to use the static apicid table during kernel startup */
+        x86_cpu_to_apicid_ptr = (void *)&x86_cpu_to_apicid_init;
+#endif
+
 #ifdef CONFIG_ACPI
         /*
          * Initialize the ACPI boot-time table parser (gets the RSDP and SDT).
@@ -554,7 +559,7 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
                    but in the same order as the HT nodeids.
                    If that doesn't result in a usable node fall back to the
                    path for the previous case.  */
-                int ht_nodeid = apicid - (cpu_data[0].phys_proc_id << bits);
+                int ht_nodeid = apicid - (cpu_data(0).phys_proc_id << bits);
                 if (ht_nodeid >= 0 &&
                     apicid_to_node[ht_nodeid] != NUMA_NO_NODE)
                         node = apicid_to_node[ht_nodeid];
@@ -878,6 +883,7 @@ void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
 
 #ifdef CONFIG_SMP
         c->phys_proc_id = (cpuid_ebx(1) >> 24) & 0xff;
+        c->cpu_index = 0;
 #endif
 }
 
@@ -984,6 +990,7 @@ void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
 static int show_cpuinfo(struct seq_file *m, void *v)
 {
         struct cpuinfo_x86 *c = v;
+        int cpu = 0;
 
         /* 
          * These flag bits must match the definitions in <asm/cpufeature.h>.
@@ -1062,8 +1069,9 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 
 
 #ifdef CONFIG_SMP
-        if (!cpu_online(c-cpu_data))
+        if (!cpu_online(c->cpu_index))
                 return 0;
+        cpu = c->cpu_index;
 #endif
 
         seq_printf(m,"processor\t: %u\n"
@@ -1071,7 +1079,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                      "cpu family\t: %d\n"
                      "model\t\t: %d\n"
                      "model name\t: %s\n",
-                     (unsigned)(c-cpu_data),
+                     (unsigned)cpu,
                      c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
                      c->x86,
                      (int)c->x86_model,
@@ -1083,7 +1091,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                 seq_printf(m, "stepping\t: unknown\n");
         
         if (cpu_has(c,X86_FEATURE_TSC)) {
-                unsigned int freq = cpufreq_quick_get((unsigned)(c-cpu_data));
+                unsigned int freq = cpufreq_quick_get((unsigned)cpu);
                 if (!freq)
                         freq = cpu_khz;
                 seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
@@ -1096,7 +1104,6 @@ static int show_cpuinfo(struct seq_file *m, void *v)
         
 #ifdef CONFIG_SMP
         if (smp_num_siblings * c->x86_max_cores > 1) {
-                int cpu = c - cpu_data;
                 seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
                 seq_printf(m, "siblings\t: %d\n",
                                cpus_weight(per_cpu(cpu_core_map, cpu)));
@@ -1154,12 +1161,16 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 
 static void *c_start(struct seq_file *m, loff_t *pos)
 {
-        return *pos < NR_CPUS ? cpu_data + *pos : NULL;
+        if (*pos == 0)  /* just in case, cpu 0 is not the first */
+                *pos = first_cpu(cpu_possible_map);
+        if ((*pos) < NR_CPUS && cpu_possible(*pos))
+                return &cpu_data(*pos);
+        return NULL;
 }
 
 static void *c_next(struct seq_file *m, void *v, loff_t *pos)
 {
-        ++*pos;
+        *pos = next_cpu(*pos, cpu_possible_map);
         return c_start(m, pos);
 }
 
diff --git a/arch/x86/kernel/smp_32.c b/arch/x86/kernel/smp_32.c
index 9ced828d5556..f32115308399 100644
--- a/arch/x86/kernel/smp_32.c
+++ b/arch/x86/kernel/smp_32.c
@@ -610,7 +610,7 @@ static void stop_this_cpu (void * dummy)
          */
         cpu_clear(smp_processor_id(), cpu_online_map);
         disable_local_APIC();
-        if (cpu_data[smp_processor_id()].hlt_works_ok)
+        if (cpu_data(smp_processor_id()).hlt_works_ok)
                 for(;;) halt();
         for (;;);
 }
@@ -676,7 +676,7 @@ static int convert_apicid_to_cpu(int apic_id)
         int i;
 
         for (i = 0; i < NR_CPUS; i++) {
-                if (x86_cpu_to_apicid[i] == apic_id)
+                if (per_cpu(x86_cpu_to_apicid, i) == apic_id)
                         return i;
         }
         return -1;
diff --git a/arch/x86/kernel/smp_64.c b/arch/x86/kernel/smp_64.c
index 5c2964727d19..03fa6ed559c6 100644
--- a/arch/x86/kernel/smp_64.c
+++ b/arch/x86/kernel/smp_64.c
@@ -322,17 +322,27 @@ void unlock_ipi_call_lock(void)
 }
 
 /*
- * this function sends a 'generic call function' IPI to one other CPU
- * in the system.
- *
- * cpu is a standard Linux logical CPU number.
+ * this function sends a 'generic call function' IPI to all other CPU
+ * of the system defined in the mask.
  */
-static void
-__smp_call_function_single(int cpu, void (*func) (void *info), void *info,
-                                int nonatomic, int wait)
+
+static int
+__smp_call_function_mask(cpumask_t mask,
+                         void (*func)(void *), void *info,
+                         int wait)
 {
         struct call_data_struct data;
-        int cpus = 1;
+        cpumask_t allbutself;
+        int cpus;
+
+        allbutself = cpu_online_map;
+        cpu_clear(smp_processor_id(), allbutself);
+
+        cpus_and(mask, mask, allbutself);
+        cpus = cpus_weight(mask);
+
+        if (!cpus)
+                return 0;
 
         data.func = func;
         data.info = info;
@@ -343,19 +353,55 @@ __smp_call_function_single(int cpu, void (*func) (void *info), void *info,
 
         call_data = &data;
         wmb();
-        /* Send a message to all other CPUs and wait for them to respond */
-        send_IPI_mask(cpumask_of_cpu(cpu), CALL_FUNCTION_VECTOR);
+
+        /* Send a message to other CPUs */
+        if (cpus_equal(mask, allbutself))
+                send_IPI_allbutself(CALL_FUNCTION_VECTOR);
+        else
+                send_IPI_mask(mask, CALL_FUNCTION_VECTOR);
 
         /* Wait for response */
         while (atomic_read(&data.started) != cpus)
                 cpu_relax();
 
         if (!wait)
-                return;
+                return 0;
 
         while (atomic_read(&data.finished) != cpus)
                 cpu_relax();
+
+        return 0;
+}
+/**
+ * smp_call_function_mask(): Run a function on a set of other CPUs.
+ * @mask: The set of cpus to run on.  Must not include the current cpu.
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @wait: If true, wait (atomically) until function has completed on other CPUs.
+ *
+ * Returns 0 on success, else a negative status code.
+ *
+ * If @wait is true, then returns once @func has returned; otherwise
+ * it returns just before the target cpu calls @func.
+ *
+ * You must not call this function with disabled interrupts or from a
+ * hardware interrupt handler or from a bottom half handler.
+ */
+int smp_call_function_mask(cpumask_t mask,
+                           void (*func)(void *), void *info,
+                           int wait)
+{
+        int ret;
+
+        /* Can deadlock when called with interrupts disabled */
+        WARN_ON(irqs_disabled());
+
+        spin_lock(&call_lock);
+        ret = __smp_call_function_mask(mask, func, info, wait);
+        spin_unlock(&call_lock);
+        return ret;
 }
+EXPORT_SYMBOL(smp_call_function_mask);
 
 /*
  * smp_call_function_single - Run a function on a specific CPU
@@ -374,6 +420,7 @@ int smp_call_function_single (int cpu, void (*func) (void *info), void *info,
         int nonatomic, int wait)
 {
         /* prevent preemption and reschedule on another processor */
+        int ret;
         int me = get_cpu();
 
         /* Can deadlock when called with interrupts disabled */
@@ -387,51 +434,14 @@ int smp_call_function_single (int cpu, void (*func) (void *info), void *info,
                 return 0;
         }
 
-        spin_lock(&call_lock);
-        __smp_call_function_single(cpu, func, info, nonatomic, wait);
-        spin_unlock(&call_lock);
+        ret = smp_call_function_mask(cpumask_of_cpu(cpu), func, info, wait);
+
         put_cpu();
-        return 0;
+        return ret;
 }
 EXPORT_SYMBOL(smp_call_function_single);
 
 /*
- * this function sends a 'generic call function' IPI to all other CPUs
- * in the system.
- */
-static void __smp_call_function (void (*func) (void *info), void *info,
-                                int nonatomic, int wait)
-{
-        struct call_data_struct data;
-        int cpus = num_online_cpus()-1;
-
-        if (!cpus)
-                return;
-
-        data.func = func;
-        data.info = info;
-        atomic_set(&data.started, 0);
-        data.wait = wait;
-        if (wait)
-                atomic_set(&data.finished, 0);
-
-        call_data = &data;
-        wmb();
-        /* Send a message to all other CPUs and wait for them to respond */
-        send_IPI_allbutself(CALL_FUNCTION_VECTOR);
-
-        /* Wait for response */
-        while (atomic_read(&data.started) != cpus)
-                cpu_relax();
-
-        if (!wait)
-                return;
-
-        while (atomic_read(&data.finished) != cpus)
-                cpu_relax();
-}
-
-/*
  * smp_call_function - run a function on all other CPUs.
  * @func: The function to run. This must be fast and non-blocking.
  * @info: An arbitrary pointer to pass to the function.
@@ -449,10 +459,7 @@ static void __smp_call_function (void (*func) (void *info), void *info,
 int smp_call_function (void (*func) (void *info), void *info, int nonatomic,
                         int wait)
 {
-        spin_lock(&call_lock);
-        __smp_call_function(func,info,nonatomic,wait);
-        spin_unlock(&call_lock);
-        return 0;
+        return smp_call_function_mask(cpu_online_map, func, info, wait);
 }
 EXPORT_SYMBOL(smp_call_function);
 
@@ -479,7 +486,7 @@ void smp_send_stop(void)
         /* Don't deadlock on the call lock in panic */
         nolock = !spin_trylock(&call_lock);
         local_irq_save(flags);
-        __smp_call_function(stop_this_cpu, NULL, 0, 0);
+        __smp_call_function_mask(cpu_online_map, stop_this_cpu, NULL, 0);
         if (!nolock)
                 spin_unlock(&call_lock);
         disable_local_APIC();
diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 1b9ee68c98a2..ef0f34ede1ab 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -67,7 +67,7 @@ int smp_num_siblings = 1;
 EXPORT_SYMBOL(smp_num_siblings);
 
 /* Last level cache ID of each logical CPU */
-int cpu_llc_id[NR_CPUS] __cpuinitdata = {[0 ... NR_CPUS-1] = BAD_APICID};
+DEFINE_PER_CPU(u8, cpu_llc_id) = BAD_APICID;
 
 /* representing HT siblings of each logical CPU */
 DEFINE_PER_CPU(cpumask_t, cpu_sibling_map);
@@ -89,12 +89,20 @@ EXPORT_SYMBOL(cpu_possible_map);
 static cpumask_t smp_commenced_mask;
 
 /* Per CPU bogomips and other parameters */
-struct cpuinfo_x86 cpu_data[NR_CPUS] __cacheline_aligned;
-EXPORT_SYMBOL(cpu_data);
+DEFINE_PER_CPU_SHARED_ALIGNED(struct cpuinfo_x86, cpu_info);
+EXPORT_PER_CPU_SYMBOL(cpu_info);
 
-u8 x86_cpu_to_apicid[NR_CPUS] __read_mostly =
-                        { [0 ... NR_CPUS-1] = 0xff };
-EXPORT_SYMBOL(x86_cpu_to_apicid);
+/*
+ * The following static array is used during kernel startup
+ * and the x86_cpu_to_apicid_ptr contains the address of the
+ * array during this time.  Is it zeroed when the per_cpu
+ * data area is removed.
+ */
+u8 x86_cpu_to_apicid_init[NR_CPUS] __initdata =
+                        { [0 ... NR_CPUS-1] = BAD_APICID };
+void *x86_cpu_to_apicid_ptr;
+DEFINE_PER_CPU(u8, x86_cpu_to_apicid) = BAD_APICID;
+EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid);
 
 u8 apicid_2_node[MAX_APICID];
 
@@ -150,9 +158,10 @@ void __init smp_alloc_memory(void)
 
 void __cpuinit smp_store_cpu_info(int id)
 {
-        struct cpuinfo_x86 *c = cpu_data + id;
+        struct cpuinfo_x86 *c = &cpu_data(id);
 
         *c = boot_cpu_data;
+        c->cpu_index = id;
         if (id!=0)
                 identify_secondary_cpu(c);
         /*
@@ -294,7 +303,7 @@ static int cpucount;
 /* maps the cpu to the sched domain representing multi-core */
 cpumask_t cpu_coregroup_map(int cpu)
 {
-        struct cpuinfo_x86 *c = cpu_data + cpu;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
         /*
          * For perf, we return last level cache shared map.
          * And for power savings, we return cpu_core_map
@@ -311,41 +320,41 @@ static cpumask_t cpu_sibling_setup_map;
 void __cpuinit set_cpu_sibling_map(int cpu)
 {
         int i;
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
 
         cpu_set(cpu, cpu_sibling_setup_map);
 
         if (smp_num_siblings > 1) {
                 for_each_cpu_mask(i, cpu_sibling_setup_map) {
-                        if (c[cpu].phys_proc_id == c[i].phys_proc_id &&
-                            c[cpu].cpu_core_id == c[i].cpu_core_id) {
+                        if (c->phys_proc_id == cpu_data(i).phys_proc_id &&
+                            c->cpu_core_id == cpu_data(i).cpu_core_id) {
                                 cpu_set(i, per_cpu(cpu_sibling_map, cpu));
                                 cpu_set(cpu, per_cpu(cpu_sibling_map, i));
                                 cpu_set(i, per_cpu(cpu_core_map, cpu));
                                 cpu_set(cpu, per_cpu(cpu_core_map, i));
-                                cpu_set(i, c[cpu].llc_shared_map);
-                                cpu_set(cpu, c[i].llc_shared_map);
+                                cpu_set(i, c->llc_shared_map);
+                                cpu_set(cpu, cpu_data(i).llc_shared_map);
                         }
                 }
         } else {
                 cpu_set(cpu, per_cpu(cpu_sibling_map, cpu));
         }
 
-        cpu_set(cpu, c[cpu].llc_shared_map);
+        cpu_set(cpu, c->llc_shared_map);
 
         if (current_cpu_data.x86_max_cores == 1) {
                 per_cpu(cpu_core_map, cpu) = per_cpu(cpu_sibling_map, cpu);
-                c[cpu].booted_cores = 1;
+                c->booted_cores = 1;
                 return;
         }
 
         for_each_cpu_mask(i, cpu_sibling_setup_map) {
-                if (cpu_llc_id[cpu] != BAD_APICID &&
-                    cpu_llc_id[cpu] == cpu_llc_id[i]) {
-                        cpu_set(i, c[cpu].llc_shared_map);
-                        cpu_set(cpu, c[i].llc_shared_map);
+                if (per_cpu(cpu_llc_id, cpu) != BAD_APICID &&
+                    per_cpu(cpu_llc_id, cpu) == per_cpu(cpu_llc_id, i)) {
+                        cpu_set(i, c->llc_shared_map);
+                        cpu_set(cpu, cpu_data(i).llc_shared_map);
                 }
-                if (c[cpu].phys_proc_id == c[i].phys_proc_id) {
+                if (c->phys_proc_id == cpu_data(i).phys_proc_id) {
                         cpu_set(i, per_cpu(cpu_core_map, cpu));
                         cpu_set(cpu, per_cpu(cpu_core_map, i));
                         /*
@@ -357,15 +366,15 @@ void __cpuinit set_cpu_sibling_map(int cpu)
                                  * the booted_cores for this new cpu
                                  */
                                 if (first_cpu(per_cpu(cpu_sibling_map, i)) == i)
-                                        c[cpu].booted_cores++;
+                                        c->booted_cores++;
                                 /*
                                  * increment the core count for all
                                  * the other cpus in this package
                                  */
                                 if (i != cpu)
-                                        c[i].booted_cores++;
-                        } else if (i != cpu && !c[cpu].booted_cores)
-                                c[cpu].booted_cores = c[i].booted_cores;
+                                        cpu_data(i).booted_cores++;
+                        } else if (i != cpu && !c->booted_cores)
+                                c->booted_cores = cpu_data(i).booted_cores;
                 }
         }
 }
@@ -804,7 +813,7 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu)
 
         irq_ctx_init(cpu);
 
-        x86_cpu_to_apicid[cpu] = apicid;
+        per_cpu(x86_cpu_to_apicid, cpu) = apicid;
         /*
          * This grunge runs the startup process for
          * the targeted processor.
@@ -844,7 +853,7 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu)
                         /* number CPUs logically, starting from 1 (BSP is 0) */
                         Dprintk("OK.\n");
                         printk("CPU%d: ", cpu);
-                        print_cpu_info(&cpu_data[cpu]);
+                        print_cpu_info(&cpu_data(cpu));
                         Dprintk("CPU has booted.\n");
                 } else {
                         boot_error= 1;
@@ -866,7 +875,7 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu)
                 cpu_clear(cpu, cpu_initialized); /* was set by cpu_init() */
                 cpucount--;
         } else {
-                x86_cpu_to_apicid[cpu] = apicid;
+                per_cpu(x86_cpu_to_apicid, cpu) = apicid;
                 cpu_set(cpu, cpu_present_map);
         }
 
@@ -915,7 +924,7 @@ static int __cpuinit __smp_prepare_cpu(int cpu)
         struct warm_boot_cpu_info info;
         int     apicid, ret;
 
-        apicid = x86_cpu_to_apicid[cpu];
+        apicid = per_cpu(x86_cpu_to_apicid, cpu);
         if (apicid == BAD_APICID) {
                 ret = -ENODEV;
                 goto exit;
@@ -961,11 +970,11 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
          */
         smp_store_cpu_info(0); /* Final full version of the data */
         printk("CPU%d: ", 0);
-        print_cpu_info(&cpu_data[0]);
+        print_cpu_info(&cpu_data(0));
 
         boot_cpu_physical_apicid = GET_APIC_ID(apic_read(APIC_ID));
         boot_cpu_logical_apicid = logical_smp_processor_id();
-        x86_cpu_to_apicid[0] = boot_cpu_physical_apicid;
+        per_cpu(x86_cpu_to_apicid, 0) = boot_cpu_physical_apicid;
 
         current_thread_info()->cpu = 0;
 
@@ -1008,6 +1017,7 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
                 printk(KERN_ERR "... forcing use of dummy APIC emulation. (tell your hw vendor)\n");
                 smpboot_clear_io_apic_irqs();
                 phys_cpu_present_map = physid_mask_of_physid(0);
+                map_cpu_to_logical_apicid();
                 cpu_set(0, per_cpu(cpu_sibling_map, 0));
                 cpu_set(0, per_cpu(cpu_core_map, 0));
                 return;
@@ -1029,6 +1039,7 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
                 }
                 smpboot_clear_io_apic_irqs();
                 phys_cpu_present_map = physid_mask_of_physid(0);
+                map_cpu_to_logical_apicid();
                 cpu_set(0, per_cpu(cpu_sibling_map, 0));
                 cpu_set(0, per_cpu(cpu_core_map, 0));
                 return;
@@ -1082,7 +1093,7 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
         Dprintk("Before bogomips.\n");
         for (cpu = 0; cpu < NR_CPUS; cpu++)
                 if (cpu_isset(cpu, cpu_callout_map))
-                        bogosum += cpu_data[cpu].loops_per_jiffy;
+                        bogosum += cpu_data(cpu).loops_per_jiffy;
         printk(KERN_INFO
                 "Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
                 cpucount+1,
@@ -1152,7 +1163,7 @@ void __init native_smp_prepare_boot_cpu(void)
 void remove_siblinginfo(int cpu)
 {
         int sibling;
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
 
         for_each_cpu_mask(sibling, per_cpu(cpu_core_map, cpu)) {
                 cpu_clear(cpu, per_cpu(cpu_core_map, sibling));
@@ -1160,15 +1171,15 @@ void remove_siblinginfo(int cpu)
                  * last thread sibling in this cpu core going down
                  */
                 if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1)
-                        c[sibling].booted_cores--;
+                        cpu_data(sibling).booted_cores--;
         }
                         
         for_each_cpu_mask(sibling, per_cpu(cpu_sibling_map, cpu))
                 cpu_clear(cpu, per_cpu(cpu_sibling_map, sibling));
         cpus_clear(per_cpu(cpu_sibling_map, cpu));
         cpus_clear(per_cpu(cpu_core_map, cpu));
-        c[cpu].phys_proc_id = 0;
-        c[cpu].cpu_core_id = 0;
+        c->phys_proc_id = 0;
+        c->cpu_core_id = 0;
         cpu_clear(cpu, cpu_sibling_setup_map);
 }
 
diff --git a/arch/x86/kernel/smpboot_64.c b/arch/x86/kernel/smpboot_64.c
index d4c33aba3ff2..b7e768dd87c9 100644
--- a/arch/x86/kernel/smpboot_64.c
+++ b/arch/x86/kernel/smpboot_64.c
@@ -65,7 +65,7 @@ int smp_num_siblings = 1;
 EXPORT_SYMBOL(smp_num_siblings);
 
 /* Last level cache ID of each logical CPU */
-u8 cpu_llc_id[NR_CPUS] __cpuinitdata  = {[0 ... NR_CPUS-1] = BAD_APICID};
+DEFINE_PER_CPU(u8, cpu_llc_id) = BAD_APICID;
 
 /* Bitmask of currently online CPUs */
 cpumask_t cpu_online_map __read_mostly;
@@ -84,8 +84,8 @@ cpumask_t cpu_possible_map;
 EXPORT_SYMBOL(cpu_possible_map);
 
 /* Per CPU bogomips and other parameters */
-struct cpuinfo_x86 cpu_data[NR_CPUS] __cacheline_aligned;
-EXPORT_SYMBOL(cpu_data);
+DEFINE_PER_CPU_SHARED_ALIGNED(struct cpuinfo_x86, cpu_info);
+EXPORT_PER_CPU_SYMBOL(cpu_info);
 
 /* Set when the idlers are all forked */
 int smp_threads_ready;
@@ -138,9 +138,10 @@ static unsigned long __cpuinit setup_trampoline(void)
 
 static void __cpuinit smp_store_cpu_info(int id)
 {
-        struct cpuinfo_x86 *c = cpu_data + id;
+        struct cpuinfo_x86 *c = &cpu_data(id);
 
         *c = boot_cpu_data;
+        c->cpu_index = id;
         identify_cpu(c);
         print_cpu_info(c);
 }
@@ -237,7 +238,7 @@ void __cpuinit smp_callin(void)
 /* maps the cpu to the sched domain representing multi-core */
 cpumask_t cpu_coregroup_map(int cpu)
 {
-        struct cpuinfo_x86 *c = cpu_data + cpu;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
         /*
          * For perf, we return last level cache shared map.
          * And for power savings, we return cpu_core_map
@@ -254,41 +255,41 @@ static cpumask_t cpu_sibling_setup_map;
 static inline void set_cpu_sibling_map(int cpu)
 {
         int i;
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
 
         cpu_set(cpu, cpu_sibling_setup_map);
 
         if (smp_num_siblings > 1) {
                 for_each_cpu_mask(i, cpu_sibling_setup_map) {
-                        if (c[cpu].phys_proc_id == c[i].phys_proc_id &&
-                            c[cpu].cpu_core_id == c[i].cpu_core_id) {
+                        if (c->phys_proc_id == cpu_data(i).phys_proc_id &&
+                            c->cpu_core_id == cpu_data(i).cpu_core_id) {
                                 cpu_set(i, per_cpu(cpu_sibling_map, cpu));
                                 cpu_set(cpu, per_cpu(cpu_sibling_map, i));
                                 cpu_set(i, per_cpu(cpu_core_map, cpu));
                                 cpu_set(cpu, per_cpu(cpu_core_map, i));
-                                cpu_set(i, c[cpu].llc_shared_map);
-                                cpu_set(cpu, c[i].llc_shared_map);
+                                cpu_set(i, c->llc_shared_map);
+                                cpu_set(cpu, cpu_data(i).llc_shared_map);
                         }
                 }
         } else {
                 cpu_set(cpu, per_cpu(cpu_sibling_map, cpu));
         }
 
-        cpu_set(cpu, c[cpu].llc_shared_map);
+        cpu_set(cpu, c->llc_shared_map);
 
         if (current_cpu_data.x86_max_cores == 1) {
                 per_cpu(cpu_core_map, cpu) = per_cpu(cpu_sibling_map, cpu);
-                c[cpu].booted_cores = 1;
+                c->booted_cores = 1;
                 return;
         }
 
         for_each_cpu_mask(i, cpu_sibling_setup_map) {
-                if (cpu_llc_id[cpu] != BAD_APICID &&
-                    cpu_llc_id[cpu] == cpu_llc_id[i]) {
-                        cpu_set(i, c[cpu].llc_shared_map);
-                        cpu_set(cpu, c[i].llc_shared_map);
+                if (per_cpu(cpu_llc_id, cpu) != BAD_APICID &&
+                    per_cpu(cpu_llc_id, cpu) == per_cpu(cpu_llc_id, i)) {
+                        cpu_set(i, c->llc_shared_map);
+                        cpu_set(cpu, cpu_data(i).llc_shared_map);
                 }
-                if (c[cpu].phys_proc_id == c[i].phys_proc_id) {
+                if (c->phys_proc_id == cpu_data(i).phys_proc_id) {
                         cpu_set(i, per_cpu(cpu_core_map, cpu));
                         cpu_set(cpu, per_cpu(cpu_core_map, i));
                         /*
@@ -300,15 +301,15 @@ static inline void set_cpu_sibling_map(int cpu)
                                  * the booted_cores for this new cpu
                                  */
                                 if (first_cpu(per_cpu(cpu_sibling_map, i)) == i)
-                                        c[cpu].booted_cores++;
+                                        c->booted_cores++;
                                 /*
                                  * increment the core count for all
                                  * the other cpus in this package
                                  */
                                 if (i != cpu)
-                                        c[i].booted_cores++;
-                        } else if (i != cpu && !c[cpu].booted_cores)
-                                c[cpu].booted_cores = c[i].booted_cores;
+                                        cpu_data(i).booted_cores++;
+                        } else if (i != cpu && !c->booted_cores)
+                                c->booted_cores = cpu_data(i).booted_cores;
                 }
         }
 }
@@ -694,7 +695,7 @@ do_rest:
                 clear_node_cpumask(cpu); /* was set by numa_add_cpu */
                 cpu_clear(cpu, cpu_present_map);
                 cpu_clear(cpu, cpu_possible_map);
-                x86_cpu_to_apicid[cpu] = BAD_APICID;
+                per_cpu(x86_cpu_to_apicid, cpu) = BAD_APICID;
                 return -EIO;
         }
 
@@ -841,6 +842,26 @@ static int __init smp_sanity_check(unsigned max_cpus)
 }
 
 /*
+ * Copy apicid's found by MP_processor_info from initial array to the per cpu
+ * data area.  The x86_cpu_to_apicid_init array is then expendable and the
+ * x86_cpu_to_apicid_ptr is zeroed indicating that the static array is no
+ * longer available.
+ */
+void __init smp_set_apicids(void)
+{
+        int cpu;
+
+        for_each_cpu_mask(cpu, cpu_possible_map) {
+                if (per_cpu_offset(cpu))
+                        per_cpu(x86_cpu_to_apicid, cpu) =
+                                                x86_cpu_to_apicid_init[cpu];
+        }
+
+        /* indicate the static array will be going away soon */
+        x86_cpu_to_apicid_ptr = NULL;
+}
+
+/*
  * Prepare for SMP bootup.  The MP table or ACPI has been read
  * earlier.  Just do some sanity checking here and enable APIC mode.
  */
@@ -849,6 +870,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
         nmi_watchdog_default();
         current_cpu_data = boot_cpu_data;
         current_thread_info()->cpu = 0;  /* needed? */
+        smp_set_apicids();
         set_cpu_sibling_map(0);
 
         if (smp_sanity_check(max_cpus) < 0) {
@@ -968,7 +990,7 @@ void __init smp_cpus_done(unsigned int max_cpus)
 static void remove_siblinginfo(int cpu)
 {
         int sibling;
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(cpu);
 
         for_each_cpu_mask(sibling, per_cpu(cpu_core_map, cpu)) {
                 cpu_clear(cpu, per_cpu(cpu_core_map, sibling));
@@ -976,15 +998,15 @@ static void remove_siblinginfo(int cpu)
                  * last thread sibling in this cpu core going down
                  */
                 if (cpus_weight(per_cpu(cpu_sibling_map, cpu)) == 1)
-                        c[sibling].booted_cores--;
+                        cpu_data(sibling).booted_cores--;
         }
                         
         for_each_cpu_mask(sibling, per_cpu(cpu_sibling_map, cpu))
                 cpu_clear(cpu, per_cpu(cpu_sibling_map, sibling));
         cpus_clear(per_cpu(cpu_sibling_map, cpu));
         cpus_clear(per_cpu(cpu_core_map, cpu));
-        c[cpu].phys_proc_id = 0;
-        c[cpu].cpu_core_id = 0;
+        c->phys_proc_id = 0;
+        c->cpu_core_id = 0;
         cpu_clear(cpu, cpu_sibling_setup_map);
 }
 
diff --git a/arch/x86/kernel/suspend_64.c b/arch/x86/kernel/suspend_64.c
index 76274eeae9a9..bc9f59c246fd 100644
--- a/arch/x86/kernel/suspend_64.c
+++ b/arch/x86/kernel/suspend_64.c
@@ -32,9 +32,9 @@ void __save_processor_state(struct saved_context *ctxt)
         /*
          * descriptor tables
          */
-        asm volatile ("sgdt %0" : "=m" (ctxt->gdt_limit));
-        asm volatile ("sidt %0" : "=m" (ctxt->idt_limit));
-        asm volatile ("str %0"  : "=m" (ctxt->tr));
+        store_gdt((struct desc_ptr *)&ctxt->gdt_limit);
+        store_idt((struct desc_ptr *)&ctxt->idt_limit);
+        store_tr(ctxt->tr);
 
         /* XMM0..XMM15 should be handled by kernel_fpu_begin(). */
         /*
@@ -91,8 +91,9 @@ void __restore_processor_state(struct saved_context *ctxt)
          * now restore the descriptor tables to their proper values
          * ltr is done i fix_processor_context().
          */
-        asm volatile ("lgdt %0" :: "m" (ctxt->gdt_limit));
-        asm volatile ("lidt %0" :: "m" (ctxt->idt_limit));
+        load_gdt((const struct desc_ptr *)&ctxt->gdt_limit);
+        load_idt((const struct desc_ptr *)&ctxt->idt_limit);
+
 
         /*
          * segment registers
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 1e9d57256eb1..cc9acace7e23 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -63,6 +63,9 @@
 
 int panic_on_unrecovered_nmi;
 
+DECLARE_BITMAP(used_vectors, NR_VECTORS);
+EXPORT_SYMBOL_GPL(used_vectors);
+
 asmlinkage int system_call(void);
 
 /* Do we ignore FPU interrupts ? */
@@ -288,33 +291,9 @@ EXPORT_SYMBOL(dump_stack);
 void show_registers(struct pt_regs *regs)
 {
         int i;
-        int in_kernel = 1;
-        unsigned long esp;
-        unsigned short ss, gs;
-
-        esp = (unsigned long) (&regs->esp);
-        savesegment(ss, ss);
-        savesegment(gs, gs);
-        if (user_mode_vm(regs)) {
-                in_kernel = 0;
-                esp = regs->esp;
-                ss = regs->xss & 0xffff;
-        }
+
         print_modules();
-        printk(KERN_EMERG "CPU:    %d\n"
-                KERN_EMERG "EIP:    %04x:[<%08lx>]    %s VLI\n"
-                KERN_EMERG "EFLAGS: %08lx   (%s %.*s)\n",
-                smp_processor_id(), 0xffff & regs->xcs, regs->eip,
-                print_tainted(), regs->eflags, init_utsname()->release,
-                (int)strcspn(init_utsname()->version, " "),
-                init_utsname()->version);
-        print_symbol(KERN_EMERG "EIP is at %s\n", regs->eip);
-        printk(KERN_EMERG "eax: %08lx   ebx: %08lx   ecx: %08lx   edx: %08lx\n",
-                regs->eax, regs->ebx, regs->ecx, regs->edx);
-        printk(KERN_EMERG "esi: %08lx   edi: %08lx   ebp: %08lx   esp: %08lx\n",
-                regs->esi, regs->edi, regs->ebp, esp);
-        printk(KERN_EMERG "ds: %04x   es: %04x   fs: %04x  gs: %04x  ss: %04x\n",
-               regs->xds & 0xffff, regs->xes & 0xffff, regs->xfs & 0xffff, gs, ss);
+        __show_registers(regs, 0);
         printk(KERN_EMERG "Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)",
                 TASK_COMM_LEN, current->comm, task_pid_nr(current),
                 current_thread_info(), current, task_thread_info(current));
@@ -322,14 +301,14 @@ void show_registers(struct pt_regs *regs)
          * When in-kernel, we also print out the stack and code at the
          * time of the fault..
          */
-        if (in_kernel) {
+        if (!user_mode_vm(regs)) {
                 u8 *eip;
                 unsigned int code_prologue = code_bytes * 43 / 64;
                 unsigned int code_len = code_bytes;
                 unsigned char c;
 
                 printk("\n" KERN_EMERG "Stack: ");
-                show_stack_log_lvl(NULL, regs, (unsigned long *)esp, KERN_EMERG);
+                show_stack_log_lvl(NULL, regs, &regs->esp, KERN_EMERG);
 
                 printk(KERN_EMERG "Code: ");
 
@@ -374,11 +353,11 @@ int is_valid_bugaddr(unsigned long eip)
 void die(const char * str, struct pt_regs * regs, long err)
 {
         static struct {
-                spinlock_t lock;
+                raw_spinlock_t lock;
                 u32 lock_owner;
                 int lock_owner_depth;
         } die = {
-                .lock =                 __SPIN_LOCK_UNLOCKED(die.lock),
+                .lock =                 __RAW_SPIN_LOCK_UNLOCKED,
                 .lock_owner =           -1,
                 .lock_owner_depth =     0
         };
@@ -389,13 +368,14 @@ void die(const char * str, struct pt_regs * regs, long err)
 
         if (die.lock_owner != raw_smp_processor_id()) {
                 console_verbose();
-                spin_lock_irqsave(&die.lock, flags);
+                __raw_spin_lock(&die.lock);
+                raw_local_save_flags(flags);
                 die.lock_owner = smp_processor_id();
                 die.lock_owner_depth = 0;
                 bust_spinlocks(1);
         }
         else
-                local_save_flags(flags);
+                raw_local_save_flags(flags);
 
         if (++die.lock_owner_depth < 3) {
                 unsigned long esp;
@@ -439,7 +419,8 @@ void die(const char * str, struct pt_regs * regs, long err)
         bust_spinlocks(0);
         die.lock_owner = -1;
         add_taint(TAINT_DIE);
-        spin_unlock_irqrestore(&die.lock, flags);
+        __raw_spin_unlock(&die.lock);
+        raw_local_irq_restore(flags);
 
         if (!regs)
                 return;
@@ -1142,6 +1123,8 @@ static void __init set_task_gate(unsigned int n, unsigned int gdt_entry)
 
 void __init trap_init(void)
 {
+        int i;
+
 #ifdef CONFIG_EISA
         void __iomem *p = ioremap(0x0FFFD9, 4);
         if (readl(p) == 'E'+('I'<<8)+('S'<<16)+('A'<<24)) {
@@ -1201,6 +1184,11 @@ void __init trap_init(void)
 
         set_system_gate(SYSCALL_VECTOR,&system_call);
 
+        /* Reserve all the builtin and the syscall vector. */
+        for (i = 0; i < FIRST_EXTERNAL_VECTOR; i++)
+                set_bit(i, used_vectors);
+        set_bit(SYSCALL_VECTOR, used_vectors);
+
         /*
          * Should be a barrier for any external CPU state.
          */
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index b4c887341a26..d0c2bc7ab2ec 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -462,7 +462,7 @@ void out_of_line_bug(void)
 EXPORT_SYMBOL(out_of_line_bug);
 #endif
 
-static DEFINE_SPINLOCK(die_lock);
+static raw_spinlock_t die_lock = __RAW_SPIN_LOCK_UNLOCKED;
 static int die_owner = -1;
 static unsigned int die_nest_count;
 
@@ -474,13 +474,13 @@ unsigned __kprobes long oops_begin(void)
         oops_enter();
 
         /* racy, but better than risking deadlock. */
-        local_irq_save(flags);
+        raw_local_irq_save(flags);
         cpu = smp_processor_id();
-        if (!spin_trylock(&die_lock)) { 
+        if (!__raw_spin_trylock(&die_lock)) {
                 if (cpu == die_owner) 
                         /* nested oops. should stop eventually */;
                 else
-                        spin_lock(&die_lock);
+                        __raw_spin_lock(&die_lock);
         }
         die_nest_count++;
         die_owner = cpu;
@@ -494,12 +494,10 @@ void __kprobes oops_end(unsigned long flags)
         die_owner = -1;
         bust_spinlocks(0);
         die_nest_count--;
-        if (die_nest_count)
-                /* We still own the lock */
-                local_irq_restore(flags);
-        else
+        if (!die_nest_count)
                 /* Nest count reaches zero, release the lock. */
-                spin_unlock_irqrestore(&die_lock, flags);
+                __raw_spin_unlock(&die_lock);
+        raw_local_irq_restore(flags);
         if (panic_on_oops)
                 panic("Fatal exception");
         oops_exit();
diff --git a/arch/x86/kernel/tsc_32.c b/arch/x86/kernel/tsc_32.c
index 9683f1d35601..d78444c788a3 100644
--- a/arch/x86/kernel/tsc_32.c
+++ b/arch/x86/kernel/tsc_32.c
@@ -181,8 +181,8 @@ int recalibrate_cpu_khz(void)
         if (cpu_has_tsc) {
                 cpu_khz = calculate_cpu_khz();
                 tsc_khz = cpu_khz;
-                cpu_data[0].loops_per_jiffy =
-                        cpufreq_scale(cpu_data[0].loops_per_jiffy,
+                cpu_data(0).loops_per_jiffy =
+                        cpufreq_scale(cpu_data(0).loops_per_jiffy,
                                         cpu_khz_old, cpu_khz);
                 return 0;
         } else
@@ -215,7 +215,7 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, void *data)
                         return 0;
                 }
                 ref_freq = freq->old;
-                loops_per_jiffy_ref = cpu_data[freq->cpu].loops_per_jiffy;
+                loops_per_jiffy_ref = cpu_data(freq->cpu).loops_per_jiffy;
                 cpu_khz_ref = cpu_khz;
         }
 
@@ -223,7 +223,7 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, void *data)
             (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) ||
             (val == CPUFREQ_RESUMECHANGE)) {
                 if (!(freq->flags & CPUFREQ_CONST_LOOPS))
-                        cpu_data[freq->cpu].loops_per_jiffy =
+                        cpu_data(freq->cpu).loops_per_jiffy =
                                 cpufreq_scale(loops_per_jiffy_ref,
                                                 ref_freq, freq->new);
 
diff --git a/arch/x86/kernel/tsc_64.c b/arch/x86/kernel/tsc_64.c
index 9f22e542c374..9c70af45b42b 100644
--- a/arch/x86/kernel/tsc_64.c
+++ b/arch/x86/kernel/tsc_64.c
@@ -73,13 +73,13 @@ static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
         struct cpufreq_freqs *freq = data;
         unsigned long *lpj, dummy;
 
-        if (cpu_has(&cpu_data[freq->cpu], X86_FEATURE_CONSTANT_TSC))
+        if (cpu_has(&cpu_data(freq->cpu), X86_FEATURE_CONSTANT_TSC))
                 return 0;
 
         lpj = &dummy;
         if (!(freq->flags & CPUFREQ_CONST_LOOPS))
 #ifdef CONFIG_SMP
-                lpj = &cpu_data[freq->cpu].loops_per_jiffy;
+                lpj = &cpu_data(freq->cpu).loops_per_jiffy;
 #else
                 lpj = &boot_cpu_data.loops_per_jiffy;
 #endif
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index e14cb3f53862..ad4005c6d4a1 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -48,7 +48,7 @@
         ({unsigned long v;              \
         extern char __vsyscall_0;       \
           asm("" : "=r" (v) : "0" (x)); \
-          ((v - VSYSCALL_FIRST_PAGE) + __pa_symbol(&__vsyscall_0)); })
+          ((v - VSYSCALL_START) + __pa_symbol(&__vsyscall_0)); })
 
 /*
  * vsyscall_gtod_data contains data that is :
@@ -291,7 +291,7 @@ static void __cpuinit vsyscall_set_cpu(int cpu)
 #ifdef CONFIG_NUMA
         node = cpu_to_node(cpu);
 #endif
-        if (cpu_has(&cpu_data[cpu], X86_FEATURE_RDTSCP))
+        if (cpu_has(&cpu_data(cpu), X86_FEATURE_RDTSCP))
                 write_rdtscp_aux((node << 12) | cpu);
 
         /* Store cpu number in limit so that it can be loaded quickly
diff --git a/arch/x86/lib/delay_32.c b/arch/x86/lib/delay_32.c
index f6edb11364df..952e7a89c2ac 100644
--- a/arch/x86/lib/delay_32.c
+++ b/arch/x86/lib/delay_32.c
@@ -82,7 +82,7 @@ inline void __const_udelay(unsigned long xloops)
         __asm__("mull %0"
                 :"=d" (xloops), "=&a" (d0)
                 :"1" (xloops), "0"
-                (cpu_data[raw_smp_processor_id()].loops_per_jiffy * (HZ/4)));
+                (cpu_data(raw_smp_processor_id()).loops_per_jiffy * (HZ/4)));
 
         __delay(++xloops);
 }
diff --git a/arch/x86/lib/delay_64.c b/arch/x86/lib/delay_64.c
index 2dbebd308347..0ebbfb9e7c7f 100644
--- a/arch/x86/lib/delay_64.c
+++ b/arch/x86/lib/delay_64.c
@@ -40,7 +40,8 @@ EXPORT_SYMBOL(__delay);
 
 inline void __const_udelay(unsigned long xloops)
 {
-        __delay(((xloops * HZ * cpu_data[raw_smp_processor_id()].loops_per_jiffy) >> 32) + 1);
+        __delay(((xloops * HZ *
+                cpu_data(raw_smp_processor_id()).loops_per_jiffy) >> 32) + 1);
 }
 EXPORT_SYMBOL(__const_udelay);
 
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index c5f2692273e6..361ac5107b33 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -36,8 +36,8 @@ static unsigned long cpu_irq_affinity[NR_CPUS] __cacheline_aligned = { [0 ... NR
 
 /* per CPU data structure (for /proc/cpuinfo et al), visible externally
  * indexed physically */
-struct cpuinfo_x86 cpu_data[NR_CPUS] __cacheline_aligned;
-EXPORT_SYMBOL(cpu_data);
+DEFINE_PER_CPU(cpuinfo_x86, cpu_info) __cacheline_aligned;
+EXPORT_PER_CPU_SYMBOL(cpu_info);
 
 /* physical ID of the CPU used to boot the system */
 unsigned char boot_cpu_id;
@@ -430,7 +430,7 @@ find_smp_config(void)
 void __init
 smp_store_cpu_info(int id)
 {
-        struct cpuinfo_x86 *c=&cpu_data[id];
+        struct cpuinfo_x86 *c = &cpu_data(id);
 
         *c = boot_cpu_data;
 
@@ -634,7 +634,7 @@ do_boot_cpu(__u8 cpu)
                         cpu, smp_processor_id()));
         
                 printk("CPU%d: ", cpu);
-                print_cpu_info(&cpu_data[cpu]);
+                print_cpu_info(&cpu_data(cpu));
                 wmb();
                 cpu_set(cpu, cpu_callout_map);
                 cpu_set(cpu, cpu_present_map);
@@ -683,7 +683,7 @@ smp_boot_cpus(void)
          */
         smp_store_cpu_info(boot_cpu_id);
         printk("CPU%d: ", boot_cpu_id);
-        print_cpu_info(&cpu_data[boot_cpu_id]);
+        print_cpu_info(&cpu_data(boot_cpu_id));
 
         if(is_cpu_quad()) {
                 /* booting on a Quad CPU */
@@ -714,7 +714,7 @@ smp_boot_cpus(void)
                 unsigned long bogosum = 0;
                 for (i = 0; i < NR_CPUS; i++)
                         if (cpu_isset(i, cpu_online_map))
-                                bogosum += cpu_data[i].loops_per_jiffy;
+                                bogosum += cpu_data(i).loops_per_jiffy;
                 printk(KERN_INFO "Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
                         cpucount+1,
                         bogosum/(500000/HZ),
diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index d6181597a0a8..503dfc05111b 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -564,7 +564,8 @@ no_context:
                  * it's allocated already.
                  */
                 if ((page >> PAGE_SHIFT) < max_low_pfn
-                    && (page & _PAGE_PRESENT)) {
+                    && (page & _PAGE_PRESENT)
+                    && !(page & _PAGE_PSE)) {
                         page &= PAGE_MASK;
                         page = ((__typeof__(page) *) __va(page))[(address >> PAGE_SHIFT)
                                                                  & (PTRS_PER_PTE - 1)];
diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 7c560843ded1..644b4f7ece10 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -169,7 +169,7 @@ void dump_pagetable(unsigned long address)
         pmd = pmd_offset(pud, address);
         if (bad_address(pmd)) goto bad;
         printk("PMD %lx ", pmd_val(*pmd));
-        if (!pmd_present(*pmd)) goto ret;        
+        if (!pmd_present(*pmd) || pmd_large(*pmd)) goto ret;
 
         pte = pte_offset_kernel(pmd, address);
         if (bad_address(pte)) goto bad;
@@ -285,7 +285,6 @@ static int vmalloc_fault(unsigned long address)
         return 0;
 }
 
-static int page_fault_trace;
 int show_unhandled_signals = 1;
 
 /*
@@ -354,10 +353,6 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
         if (likely(regs->eflags & X86_EFLAGS_IF))
                 local_irq_enable();
 
-        if (unlikely(page_fault_trace))
-                printk("pagefault rip:%lx rsp:%lx cs:%lu ss:%lu address %lx error %lx\n",
-                       regs->rip,regs->rsp,regs->cs,regs->ss,address,error_code); 
-
         if (unlikely(error_code & PF_RSVD))
                 pgtable_bad(address, regs, error_code);
 
@@ -488,7 +483,7 @@ bad_area_nosemaphore:
                 if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
                     printk_ratelimit()) {
                         printk(
-                       "%s%s[%d]: segfault at %016lx rip %016lx rsp %016lx error %lx\n",
+                       "%s%s[%d]: segfault at %lx rip %lx rsp %lx error %lx\n",
                                         tsk->pid > 1 ? KERN_INFO : KERN_EMERG,
                                         tsk->comm, tsk->pid, address, regs->rip,
                                         regs->rsp, error_code);
@@ -621,10 +616,3 @@ void vmalloc_sync_all(void)
         BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) == 
                                 (__START_KERNEL & PGDIR_MASK)));
 }
-
-static int __init enable_pagefaulttrace(char *str)
-{
-        page_fault_trace = 1;
-        return 1;
-}
-__setup("pagefaulttrace", enable_pagefaulttrace);
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 5eec5e56d07f..3d6926ba8995 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -612,7 +612,7 @@ void __init init_cpu_to_node(void)
 {
         int i;
         for (i = 0; i < NR_CPUS; i++) {
-                u8 apicid = x86_cpu_to_apicid[i];
+                u8 apicid = x86_cpu_to_apicid_init[i];
                 if (apicid == BAD_APICID)
                         continue;
                 if (apicid_to_node[apicid] == NUMA_NO_NODE)
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index c049ce414f01..0ed046a187f7 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -13,25 +13,45 @@
 #include <linux/mm.h>
 #include <asm/ptrace.h>
 #include <asm/uaccess.h>
+#include <asm/stacktrace.h>
 
-struct frame_head {
-        struct frame_head * ebp;
-        unsigned long ret;
-} __attribute__((packed));
+static void backtrace_warning_symbol(void *data, char *msg,
+                                     unsigned long symbol)
+{
+        /* Ignore warnings */
+}
 
-static struct frame_head *
-dump_kernel_backtrace(struct frame_head * head)
+static void backtrace_warning(void *data, char *msg)
 {
-        oprofile_add_trace(head->ret);
+        /* Ignore warnings */
+}
 
-        /* frame pointers should strictly progress back up the stack
-         * (towards higher addresses) */
-        if (head >= head->ebp)
-                return NULL;
+static int backtrace_stack(void *data, char *name)
+{
+        /* Yes, we want all stacks */
+        return 0;
+}
+
+static void backtrace_address(void *data, unsigned long addr)
+{
+        unsigned int *depth = data;
 
-        return head->ebp;
+        if ((*depth)--)
+                oprofile_add_trace(addr);
 }
 
+static struct stacktrace_ops backtrace_ops = {
+        .warning = backtrace_warning,
+        .warning_symbol = backtrace_warning_symbol,
+        .stack = backtrace_stack,
+        .address = backtrace_address,
+};
+
+struct frame_head {
+        struct frame_head *ebp;
+        unsigned long ret;
+} __attribute__((packed));
+
 static struct frame_head *
 dump_user_backtrace(struct frame_head * head)
 {
@@ -53,72 +73,16 @@ dump_user_backtrace(struct frame_head * head)
         return bufhead[0].ebp;
 }
 
-/*
- * |             | /\ Higher addresses
- * |             |
- * --------------- stack base (address of current_thread_info)
- * | thread info |
- * .             .
- * |    stack    |
- * --------------- saved regs->ebp value if valid (frame_head address)
- * .             .
- * --------------- saved regs->rsp value if x86_64
- * |             |
- * --------------- struct pt_regs * stored on stack if 32-bit
- * |             |
- * .             .
- * |             |
- * --------------- %esp
- * |             |
- * |             | \/ Lower addresses
- *
- * Thus, regs (or regs->rsp for x86_64) <-> stack base restricts the
- * valid(ish) ebp values. Note: (1) for x86_64, NMI and several other
- * exceptions use special stacks, maintained by the interrupt stack table
- * (IST). These stacks are set up in trap_init() in
- * arch/x86_64/kernel/traps.c. Thus, for x86_64, regs now does not point
- * to the kernel stack; instead, it points to some location on the NMI
- * stack. On the other hand, regs->rsp is the stack pointer saved when the
- * NMI occurred. (2) For 32-bit, regs->esp is not valid because the
- * processor does not save %esp on the kernel stack when interrupts occur
- * in the kernel mode.
- */
-#ifdef CONFIG_FRAME_POINTER
-static int valid_kernel_stack(struct frame_head * head, struct pt_regs * regs)
-{
-        unsigned long headaddr = (unsigned long)head;
-#ifdef CONFIG_X86_64
-        unsigned long stack = (unsigned long)regs->rsp;
-#else
-        unsigned long stack = (unsigned long)regs;
-#endif
-        unsigned long stack_base = (stack & ~(THREAD_SIZE - 1)) + THREAD_SIZE;
-
-        return headaddr > stack && headaddr < stack_base;
-}
-#else
-/* without fp, it's just junk */
-static int valid_kernel_stack(struct frame_head * head, struct pt_regs * regs)
-{
-        return 0;
-}
-#endif
-
-
 void
 x86_backtrace(struct pt_regs * const regs, unsigned int depth)
 {
-        struct frame_head *head;
-
-#ifdef CONFIG_X86_64
-        head = (struct frame_head *)regs->rbp;
-#else
-        head = (struct frame_head *)regs->ebp;
-#endif
+        struct frame_head *head = (struct frame_head *)frame_pointer(regs);
+        unsigned long stack = stack_pointer(regs);
 
         if (!user_mode_vm(regs)) {
-                while (depth-- && valid_kernel_stack(head, regs))
-                        head = dump_kernel_backtrace(head);
+                if (depth)
+                        dump_trace(NULL, regs, (unsigned long *)stack,
+                                   &backtrace_ops, &depth);
                 return;
         }
 
diff --git a/arch/x86_64/.gitignore b/arch/x86_64/.gitignore
new file mode 100644
index 000000000000..36ef4c374d25
--- /dev/null
+++ b/arch/x86_64/.gitignore
@@ -0,0 +1 @@
+boot
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 25785b23df87..aab25f3ba3ce 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -723,7 +723,7 @@ config ARCH_HIBERNATION_HEADER
 
 source "drivers/acpi/Kconfig"
 
-source "arch/x86/kernel/cpufreq/Kconfig"
+source "arch/x86/kernel/cpu/cpufreq/Kconfig_64"
 
 source "drivers/cpuidle/Kconfig"
 
@@ -768,9 +768,9 @@ source "fs/Kconfig.binfmt"
 config IA32_EMULATION
         bool "IA32 Emulation"
         help
-          Include code to run 32-bit programs under a 64-bit kernel. You should likely
-          turn this on, unless you're 100% sure that you don't have any 32-bit programs
-          left.
+          Include code to run 32-bit programs under a 64-bit kernel. You should
+          likely turn this on, unless you're 100% sure that you don't have any
+          32-bit programs left.
 
 config IA32_AOUT
        tristate "IA32 a.out support"
diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile
index 03e1ede27b85..6d89ab762ffc 100644
--- a/arch/x86_64/Makefile
+++ b/arch/x86_64/Makefile
@@ -74,7 +74,7 @@ KBUILD_CFLAGS += $(cflags-y)
 CFLAGS_KERNEL += $(cflags-kernel-y)
 KBUILD_AFLAGS += -m64
 
-head-y := arch/x86/kernel/head_64.o arch/x86/kernel/head64.o arch/x86/kernel/init_task_64.o
+head-y := arch/x86/kernel/head_64.o arch/x86/kernel/head64.o arch/x86/kernel/init_task.o
 
 libs-y                                  += arch/x86/lib/
 core-y                                  += arch/x86/kernel/ \
@@ -97,9 +97,9 @@ BOOTIMAGE                     := arch/x86/boot/bzImage
 KBUILD_IMAGE                  := $(BOOTIMAGE)
 
 bzImage: vmlinux
-        $(Q)mkdir -p $(objtree)/arch/x86_64/boot
-        $(Q)ln -fsn $(objtree)/arch/x86/boot/bzImage $(objtree)/arch/x86_64/boot/bzImage
         $(Q)$(MAKE) $(build)=$(boot) $(BOOTIMAGE)
+        $(Q)mkdir -p $(objtree)/arch/x86_64/boot
+        $(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/x86_64/boot/bzImage
 
 bzlilo: vmlinux
         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zlilo
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index a7351084f2f8..235a51e328c3 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -422,12 +422,6 @@ static int map_lsapic_id(struct acpi_subtable_header *entry,
         return 0;
 }
 
-#ifdef CONFIG_IA64
-#define arch_cpu_to_apicid      ia64_cpu_to_sapicid
-#else
-#define arch_cpu_to_apicid      x86_cpu_to_apicid
-#endif
-
 static int map_madt_entry(u32 acpi_id)
 {
         unsigned long madt_end, entry;
@@ -501,7 +495,7 @@ static int get_cpu_id(acpi_handle handle, u32 acpi_id)
                 return apic_id;
 
         for (i = 0; i < NR_CPUS; ++i) {
-                if (arch_cpu_to_apicid[i] == apic_id)
+                if (cpu_physical_id(i) == apic_id)
                         return i;
         }
         return -1;
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index bbaa545ea999..629eadbd0ec0 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1392,7 +1392,7 @@ static void ata_qc_complete_internal(struct ata_queued_cmd *qc)
  *      @tf: Taskfile registers for the command and the result
  *      @cdb: CDB for packet command
  *      @dma_dir: Data tranfer direction of the command
- *      @sg: sg list for the data buffer of the command
+ *      @sgl: sg list for the data buffer of the command
  *      @n_elem: Number of sg entries
  *      @timeout: Timeout in msecs (0 for default)
  *
diff --git a/drivers/ata/pata_cs5536.c b/drivers/ata/pata_cs5536.c
index 53070f6b1fc4..d753e568588e 100644
--- a/drivers/ata/pata_cs5536.c
+++ b/drivers/ata/pata_cs5536.c
@@ -40,7 +40,7 @@
 #include <asm/msr.h>
 
 #define DRV_NAME        "pata_cs5536"
-#define DRV_VERSION     "0.0.5"
+#define DRV_VERSION     "0.0.6"
 
 enum {
         CFG                     = 0,
@@ -214,7 +214,7 @@ static void cs5536_set_dmamode(struct ata_port *ap, struct ata_device *adev)
                 cs5536_read(pdev, DTC, &dtc);
 
                 dtc &= ~(IDE_DRV_MASK << dshift);
-                dtc |= mwdma_timings[mode] << dshift;
+                dtc |= mwdma_timings[mode - XFER_MW_DMA_0] << dshift;
 
                 cs5536_write(pdev, DTC, dtc);
         }
diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c
index 8d98a9fb0a42..f147dc7bf464 100644
--- a/drivers/ata/sata_sis.c
+++ b/drivers/ata/sata_sis.c
@@ -92,7 +92,7 @@ static struct scsi_host_template sis_sht = {
         .queuecommand           = ata_scsi_queuecmd,
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
-        .sg_tablesize           = ATA_MAX_PRD,
+        .sg_tablesize           = LIBATA_MAX_PRD,
         .cmd_per_lun            = ATA_SHT_CMD_PER_LUN,
         .emulated               = ATA_SHT_EMULATED,
         .use_clustering         = ATA_SHT_USE_CLUSTERING,
@@ -166,11 +166,11 @@ static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
         return addr;
 }
 
-static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
+static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg, u32 *val)
 {
         struct pci_dev *pdev = to_pci_dev(ap->host->dev);
         unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
-        u32 val, val2 = 0;
+        u32 val2 = 0;
         u8 pmr;
 
         if (sc_reg == SCR_ERROR) /* doesn't exist in PCI cfg space */
@@ -178,13 +178,16 @@ static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
 
         pci_read_config_byte(pdev, SIS_PMR, &pmr);
 
-        pci_read_config_dword(pdev, cfg_addr, &val);
+        pci_read_config_dword(pdev, cfg_addr, val);
 
         if ((pdev->device == 0x0182) || (pdev->device == 0x0183) ||
             (pdev->device == 0x1182) || (pmr & SIS_PMR_COMBINED))
                 pci_read_config_dword(pdev, cfg_addr+0x10, &val2);
 
-        return (val|val2) &  0xfffffffb; /* avoid problems with powerdowned ports */
+        *val |= val2;
+        *val &= 0xfffffffb;     /* avoid problems with powerdowned ports */
+
+        return 0;
 }
 
 static void sis_scr_cfg_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
@@ -214,7 +217,7 @@ static int sis_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
                 return -EINVAL;
 
         if (ap->flags & SIS_FLAG_CFGSCR)
-                return sis_scr_cfg_read(ap, sc_reg);
+                return sis_scr_cfg_read(ap, sc_reg, val);
 
         pci_read_config_byte(pdev, SIS_PMR, &pmr);
 
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 6f66551d9e51..5c82ec7f8bbd 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -150,7 +150,7 @@ static struct coretemp_data *coretemp_update_device(struct device *dev)
 static int __devinit coretemp_probe(struct platform_device *pdev)
 {
         struct coretemp_data *data;
-        struct cpuinfo_x86 *c = &(cpu_data)[pdev->id];
+        struct cpuinfo_x86 *c = &cpu_data(pdev->id);
         int err;
         u32 eax, edx;
 
@@ -359,7 +359,7 @@ static int __init coretemp_init(void)
         struct pdev_entry *p, *n;
 
         /* quick check if we run Intel */
-        if (cpu_data[0].x86_vendor != X86_VENDOR_INTEL)
+        if (cpu_data(0).x86_vendor != X86_VENDOR_INTEL)
                 goto exit;
 
         err = platform_driver_register(&coretemp_driver);
@@ -367,7 +367,7 @@ static int __init coretemp_init(void)
                 goto exit;
 
         for_each_online_cpu(i) {
-                struct cpuinfo_x86 *c = &(cpu_data)[i];
+                struct cpuinfo_x86 *c = &cpu_data(i);
 
                 /* check if family 6, models e, f, 16 */
                 if ((c->cpuid_level < 0) || (c->x86 != 0x6) ||
diff --git a/drivers/hwmon/hwmon-vid.c b/drivers/hwmon/hwmon-vid.c
index f17e771e42f8..3330667280b9 100644
--- a/drivers/hwmon/hwmon-vid.c
+++ b/drivers/hwmon/hwmon-vid.c
@@ -200,7 +200,7 @@ static u8 find_vrm(u8 eff_family, u8 eff_model, u8 eff_stepping, u8 vendor)
 
 u8 vid_which_vrm(void)
 {
-        struct cpuinfo_x86 *c = cpu_data;
+        struct cpuinfo_x86 *c = &cpu_data(0);
         u32 eax;
         u8 eff_family, eff_model, eff_stepping, vrm_ret;
 
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 6d9fd92763f4..6eaece96524e 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -1056,6 +1056,9 @@ endif
 config BLK_DEV_IDEDMA
         def_bool BLK_DEV_IDEDMA_PCI || BLK_DEV_IDEDMA_PMAC || BLK_DEV_IDEDMA_ICS || BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
 
+config IDE_ARCH_OBSOLETE_INIT
+        def_bool ALPHA || (ARM && !ARCH_L7200) || BLACKFIN || X86 || IA64 || M32R || MIPS || PARISC || PPC || (SUPERH64 && BLK_DEV_IDEPCI) || SPARC
+
 endif
 
 config BLK_DEV_HD_ONLY
diff --git a/drivers/ide/arm/bast-ide.c b/drivers/ide/arm/bast-ide.c
index f7449d04114a..48db6167bb90 100644
--- a/drivers/ide/arm/bast-ide.c
+++ b/drivers/ide/arm/bast-ide.c
@@ -45,7 +45,7 @@ bastide_register(unsigned int base, unsigned int aux, int irq,
         hw.io_ports[IDE_CONTROL_OFFSET] = aux + (6 * 0x20);
         hw.irq = irq;
 
-        ide_register_hw(&hw, 0, hwif);
+        ide_register_hw(&hw, NULL, 0, hwif);
 
         return 0;
 }
diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c
index 3af33fbf1f88..410a0d13e35e 100644
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -316,27 +316,29 @@ static int icside_dma_end(ide_drive_t *drive)
 
         drive->waiting_for_dma = 0;
 
-        disable_dma(hwif->hw.dma);
+        disable_dma(state->dev->dma);
 
         /* Teardown mappings after DMA has completed. */
         dma_unmap_sg(state->dev, hwif->sg_table, hwif->sg_nents,
                      hwif->sg_dma_direction);
 
-        return get_dma_residue(hwif->hw.dma) != 0;
+        return get_dma_residue(state->dev->dma) != 0;
 }
 
 static void icside_dma_start(ide_drive_t *drive)
 {
         ide_hwif_t *hwif = HWIF(drive);
+        struct icside_state *state = hwif->hwif_data;
 
         /* We can not enable DMA on both channels simultaneously. */
-        BUG_ON(dma_channel_active(hwif->hw.dma));
-        enable_dma(hwif->hw.dma);
+        BUG_ON(dma_channel_active(state->dev->dma));
+        enable_dma(state->dev->dma);
 }
 
 static int icside_dma_setup(ide_drive_t *drive)
 {
         ide_hwif_t *hwif = HWIF(drive);
+        struct icside_state *state = hwif->hwif_data;
         struct request *rq = hwif->hwgroup->rq;
         unsigned int dma_mode;
 
@@ -348,7 +350,7 @@ static int icside_dma_setup(ide_drive_t *drive)
         /*
          * We can not enable DMA on both channels.
          */
-        BUG_ON(dma_channel_active(hwif->hw.dma));
+        BUG_ON(dma_channel_active(state->dev->dma));
 
         icside_build_sglist(drive, rq);
 
@@ -365,14 +367,14 @@ static int icside_dma_setup(ide_drive_t *drive)
         /*
          * Select the correct timing for this drive.
          */
-        set_dma_speed(hwif->hw.dma, drive->drive_data);
+        set_dma_speed(state->dev->dma, drive->drive_data);
 
         /*
          * Tell the DMA engine about the SG table and
          * data direction.
          */
-        set_dma_sg(hwif->hw.dma, hwif->sg_table, hwif->sg_nents);
-        set_dma_mode(hwif->hw.dma, dma_mode);
+        set_dma_sg(state->dev->dma, hwif->sg_table, hwif->sg_nents);
+        set_dma_mode(state->dev->dma, dma_mode);
 
         drive->waiting_for_dma = 1;
 
@@ -438,40 +440,16 @@ static void icside_dma_init(ide_hwif_t *hwif)
 #define icside_dma_init(hwif)   (0)
 #endif
 
-static ide_hwif_t *icside_find_hwif(unsigned long dataport)
-{
-        ide_hwif_t *hwif;
-        int index;
-
-        for (index = 0; index < MAX_HWIFS; ++index) {
-                hwif = &ide_hwifs[index];
-                if (hwif->io_ports[IDE_DATA_OFFSET] == dataport)
-                        goto found;
-        }
-
-        for (index = 0; index < MAX_HWIFS; ++index) {
-                hwif = &ide_hwifs[index];
-                if (!hwif->io_ports[IDE_DATA_OFFSET])
-                        goto found;
-        }
-
-        hwif = NULL;
-found:
-        return hwif;
-}
-
 static ide_hwif_t *
 icside_setup(void __iomem *base, struct cardinfo *info, struct expansion_card *ec)
 {
         unsigned long port = (unsigned long)base + info->dataoffset;
         ide_hwif_t *hwif;
 
-        hwif = icside_find_hwif(port);
+        hwif = ide_find_port(port);
         if (hwif) {
                 int i;
 
-                memset(&hwif->hw, 0, sizeof(hw_regs_t));
-
                 /*
                  * Ensure we're using MMIO
                  */
@@ -479,13 +457,10 @@ icside_setup(void __iomem *base, struct cardinfo *info, struct expansion_card *e
                 hwif->mmio = 1;
 
                 for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
-                        hwif->hw.io_ports[i] = port;
                         hwif->io_ports[i] = port;
                         port += 1 << info->stepping;
                 }
-                hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)base + info->ctrloffset;
                 hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)base + info->ctrloffset;
-                hwif->hw.irq  = ec->irq;
                 hwif->irq     = ec->irq;
                 hwif->noprobe = 0;
                 hwif->chipset = ide_acorn;
@@ -500,6 +475,7 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec)
 {
         ide_hwif_t *hwif;
         void __iomem *base;
+        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
 
         base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
         if (!base)
@@ -523,9 +499,9 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec)
 
         state->hwif[0] = hwif;
 
-        probe_hwif_init(hwif);
+        idx[0] = hwif->index;
 
-        ide_proc_register_port(hwif);
+        ide_device_add(idx);
 
         return 0;
 }
@@ -537,6 +513,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
         void __iomem *ioc_base, *easi_base;
         unsigned int sel = 0;
         int ret;
+        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
 
         ioc_base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
         if (!ioc_base) {
@@ -592,7 +569,6 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
         hwif->serialized  = 1;
         hwif->config_data = (unsigned long)ioc_base;
         hwif->select_data = sel;
-        hwif->hw.dma      = ec->dma;
 
         mate->maskproc    = icside_maskproc;
         mate->channel     = 1;
@@ -601,18 +577,16 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
         mate->serialized  = 1;
         mate->config_data = (unsigned long)ioc_base;
         mate->select_data = sel | 1;
-        mate->hw.dma      = ec->dma;
 
         if (ec->dma != NO_DMA && !request_dma(ec->dma, hwif->name)) {
                 icside_dma_init(hwif);
                 icside_dma_init(mate);
         }
 
-        probe_hwif_init(hwif);
-        probe_hwif_init(mate);
+        idx[0] = hwif->index;
+        idx[1] = mate->index;
 
-        ide_proc_register_port(hwif);
-        ide_proc_register_port(mate);
+        ide_device_add(idx);
 
         return 0;
 
diff --git a/drivers/ide/arm/ide_arm.c b/drivers/ide/arm/ide_arm.c
index bce2bec81413..8957cbadf5c2 100644
--- a/drivers/ide/arm/ide_arm.c
+++ b/drivers/ide/arm/ide_arm.c
@@ -31,5 +31,5 @@ void __init ide_arm_init(void)
         memset(&hw, 0, sizeof(hw));
         ide_std_init_ports(&hw, IDE_ARM_IO, IDE_ARM_IO + 0x206);
         hw.irq = IDE_ARM_IRQ;
-        ide_register_hw(&hw, 1, NULL);
+        ide_register_hw(&hw, NULL, 1, NULL);
 }
diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c
index 83811af11610..0775a3afef48 100644
--- a/drivers/ide/arm/rapide.c
+++ b/drivers/ide/arm/rapide.c
@@ -13,42 +13,25 @@
 
 #include <asm/ecard.h>
 
-/*
- * Something like this really should be in generic code, but isn't.
- */
 static ide_hwif_t *
 rapide_locate_hwif(void __iomem *base, void __iomem *ctrl, unsigned int sz, int irq)
 {
         unsigned long port = (unsigned long)base;
-        ide_hwif_t *hwif;
-        int index, i;
-
-        for (index = 0; index < MAX_HWIFS; ++index) {
-                hwif = ide_hwifs + index;
-                if (hwif->io_ports[IDE_DATA_OFFSET] == port)
-                        goto found;
-        }
-
-        for (index = 0; index < MAX_HWIFS; ++index) {
-                hwif = ide_hwifs + index;
-                if (hwif->io_ports[IDE_DATA_OFFSET] == 0)
-                        goto found;
-        }
+        ide_hwif_t *hwif = ide_find_port(port);
+        int i;
 
-        return NULL;
+        if (hwif == NULL)
+                goto out;
 
- found:
         for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
-                hwif->hw.io_ports[i] = port;
                 hwif->io_ports[i] = port;
                 port += sz;
         }
-        hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
         hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
-        hwif->hw.irq = hwif->irq = irq;
+        hwif->irq = irq;
         hwif->mmio = 1;
         default_hwif_mmiops(hwif);
-
+out:
         return hwif;
 }
 
@@ -58,6 +41,7 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
         ide_hwif_t *hwif;
         void __iomem *base;
         int ret;
+        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
 
         ret = ecard_request_resources(ec);
         if (ret)
@@ -74,8 +58,11 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
                 hwif->hwif_data = base;
                 hwif->gendev.parent = &ec->dev;
                 hwif->noprobe = 0;
-                probe_hwif_init(hwif);
-                ide_proc_register_port(hwif);
+
+                idx[0] = hwif->index;
+
+                ide_device_add(idx);
+
                 ecard_set_drvdata(ec, hwif);
                 goto out;
         }
diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c
index 9a96a10ba9d3..ff20377b4c82 100644
--- a/drivers/ide/cris/ide-cris.c
+++ b/drivers/ide/cris/ide-cris.c
@@ -782,7 +782,7 @@ init_e100_ide (void)
                                 ide_offsets,
                                 0, 0, cris_ide_ack_intr,
                                 ide_default_irq(0));
-                ide_register_hw(&hw, 1, &hwif);
+                ide_register_hw(&hw, NULL, 1, &hwif);
                 hwif->mmio = 1;
                 hwif->chipset = ide_etrax100;
                 hwif->set_pio_mode = &cris_set_pio_mode;
diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c
index 6d26ad7360d5..4a49b5c59acb 100644
--- a/drivers/ide/h8300/ide-h8300.c
+++ b/drivers/ide/h8300/ide-h8300.c
@@ -68,7 +68,6 @@ static inline void hw_setup(hw_regs_t *hw)
                 hw->io_ports[i] = CONFIG_H8300_IDE_BASE + H8300_IDE_GAP*i;
         hw->io_ports[IDE_CONTROL_OFFSET] = CONFIG_H8300_IDE_ALT;
         hw->irq = EXT_IRQ0 + CONFIG_H8300_IDE_IRQ;
-        hw->dma = NO_DMA;
         hw->chipset = ide_generic;
 }
 
@@ -101,7 +100,7 @@ void __init h8300_ide_init(void)
         hw_setup(&hw);
 
         /* register if */
-        idx = ide_register_hw(&hw, 1, &hwif);
+        idx = ide_register_hw(&hw, NULL, 1, &hwif);
         if (idx == -1) {
                 printk(KERN_ERR "ide-h8300: IDE I/F register failed\n");
                 return;
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 1d5f6823101c..89df48fdc69d 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -350,7 +350,7 @@ static int taskfile_load_raw(ide_drive_t *drive,
 
         memset(&args, 0, sizeof(ide_task_t));
         args.command_type = IDE_DRIVE_TASK_NO_DATA;
-        args.data_phase   = TASKFILE_IN;
+        args.data_phase   = TASKFILE_NO_DATA;
         args.handler      = &task_no_data_intr;
 
         /* convert gtf to IDE Taskfile */
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 2722d9165b6b..00123d99527a 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -593,28 +593,12 @@ static int smart_enable(ide_drive_t *drive)
         return ide_raw_taskfile(drive, &args, NULL);
 }
 
-static int get_smart_values(ide_drive_t *drive, u8 *buf)
+static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd)
 {
         ide_task_t args;
 
         memset(&args, 0, sizeof(ide_task_t));
-        args.tfRegister[IDE_FEATURE_OFFSET]     = SMART_READ_VALUES;
-        args.tfRegister[IDE_NSECTOR_OFFSET]     = 0x01;
-        args.tfRegister[IDE_LCYL_OFFSET]        = SMART_LCYL_PASS;
-        args.tfRegister[IDE_HCYL_OFFSET]        = SMART_HCYL_PASS;
-        args.tfRegister[IDE_COMMAND_OFFSET]     = WIN_SMART;
-        args.command_type                       = IDE_DRIVE_TASK_IN;
-        args.data_phase                         = TASKFILE_IN;
-        args.handler                            = &task_in_intr;
-        (void) smart_enable(drive);
-        return ide_raw_taskfile(drive, &args, buf);
-}
-
-static int get_smart_thresholds(ide_drive_t *drive, u8 *buf)
-{
-        ide_task_t args;
-        memset(&args, 0, sizeof(ide_task_t));
-        args.tfRegister[IDE_FEATURE_OFFSET]     = SMART_READ_THRESHOLDS;
+        args.tfRegister[IDE_FEATURE_OFFSET]     = sub_cmd;
         args.tfRegister[IDE_NSECTOR_OFFSET]     = 0x01;
         args.tfRegister[IDE_LCYL_OFFSET]        = SMART_LCYL_PASS;
         args.tfRegister[IDE_HCYL_OFFSET]        = SMART_HCYL_PASS;
@@ -656,7 +640,7 @@ static int proc_idedisk_read_smart_thresholds
         ide_drive_t     *drive = (ide_drive_t *)data;
         int             len = 0, i = 0;
 
-        if (!get_smart_thresholds(drive, page)) {
+        if (get_smart_data(drive, page, SMART_READ_THRESHOLDS) == 0) {
                 unsigned short *val = (unsigned short *) page;
                 char *out = ((char *)val) + (SECTOR_WORDS * 4);
                 page = out;
@@ -675,7 +659,7 @@ static int proc_idedisk_read_smart_values
         ide_drive_t     *drive = (ide_drive_t *)data;
         int             len = 0, i = 0;
 
-        if (!get_smart_values(drive, page)) {
+        if (get_smart_data(drive, page, SMART_READ_VALUES) == 0) {
                 unsigned short *val = (unsigned short *) page;
                 char *out = ((char *)val) + (SECTOR_WORDS * 4);
                 page = out;
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 80b4f17f3941..428f7a8a00b6 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -901,10 +901,7 @@ void ide_dma_timeout (ide_drive_t *drive)
 
 EXPORT_SYMBOL(ide_dma_timeout);
 
-/*
- * Needed for allowing full modular support of ide-driver
- */
-static int ide_release_dma_engine(ide_hwif_t *hwif)
+static void ide_release_dma_engine(ide_hwif_t *hwif)
 {
         if (hwif->dmatable_cpu) {
                 pci_free_consistent(hwif->pci_dev,
@@ -913,7 +910,6 @@ static int ide_release_dma_engine(ide_hwif_t *hwif)
                                     hwif->dmatable_dma);
                 hwif->dmatable_cpu = NULL;
         }
-        return 1;
 }
 
 static int ide_release_iomio_dma(ide_hwif_t *hwif)
@@ -956,12 +952,6 @@ static int ide_mapped_mmio_dma(ide_hwif_t *hwif, unsigned long base, unsigned in
 {
         printk(KERN_INFO "    %s: MMIO-DMA ", hwif->name);
 
-        hwif->dma_base = base;
-
-        if(hwif->mate)
-                hwif->dma_master = (hwif->channel) ? hwif->mate->dma_base : base;
-        else
-                hwif->dma_master = base;
         return 0;
 }
 
@@ -975,8 +965,6 @@ static int ide_iomio_dma(ide_hwif_t *hwif, unsigned long base, unsigned int port
                 return 1;
         }
 
-        hwif->dma_base = base;
-
         if (hwif->cds->extra) {
                 hwif->extra_base = base + (hwif->channel ? 8 : 16);
 
@@ -991,10 +979,6 @@ static int ide_iomio_dma(ide_hwif_t *hwif, unsigned long base, unsigned int port
                 }
         }
 
-        if(hwif->mate)
-                hwif->dma_master = (hwif->channel) ? hwif->mate->dma_base:base;
-        else
-                hwif->dma_master = base;
         return 0;
 }
 
@@ -1006,12 +990,9 @@ static int ide_dma_iobase(ide_hwif_t *hwif, unsigned long base, unsigned int por
         return ide_iomio_dma(hwif, base, ports);
 }
 
-/*
- * This can be called for a dynamically installed interface. Don't __init it
- */
-void ide_setup_dma (ide_hwif_t *hwif, unsigned long dma_base, unsigned int num_ports)
+void ide_setup_dma(ide_hwif_t *hwif, unsigned long base, unsigned num_ports)
 {
-        if (ide_dma_iobase(hwif, dma_base, num_ports))
+        if (ide_dma_iobase(hwif, base, num_ports))
                 return;
 
         if (ide_allocate_dma_engine(hwif)) {
@@ -1019,6 +1000,13 @@ void ide_setup_dma (ide_hwif_t *hwif, unsigned long dma_base, unsigned int num_p
                 return;
         }
 
+        hwif->dma_base = base;
+
+        if (hwif->mate)
+                hwif->dma_master = hwif->channel ? hwif->mate->dma_base : base;
+        else
+                hwif->dma_master = base;
+
         if (!(hwif->dma_command))
                 hwif->dma_command       = hwif->dma_base;
         if (!(hwif->dma_vendor1))
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 32eaa3f80515..c89f0d3058e9 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -55,7 +55,7 @@
 #include <asm/io.h>
 
 static int __ide_end_request(ide_drive_t *drive, struct request *rq,
-                             int uptodate, unsigned int nr_bytes)
+                             int uptodate, unsigned int nr_bytes, int dequeue)
 {
         int ret = 1;
 
@@ -80,9 +80,11 @@ static int __ide_end_request(ide_drive_t *drive, struct request *rq,
 
         if (!end_that_request_chunk(rq, uptodate, nr_bytes)) {
                 add_disk_randomness(rq->rq_disk);
-                if (!list_empty(&rq->queuelist))
-                        blkdev_dequeue_request(rq);
-                HWGROUP(drive)->rq = NULL;
+                if (dequeue) {
+                        if (!list_empty(&rq->queuelist))
+                                blkdev_dequeue_request(rq);
+                        HWGROUP(drive)->rq = NULL;
+                }
                 end_that_request_last(rq, uptodate);
                 ret = 0;
         }
@@ -122,7 +124,7 @@ int ide_end_request (ide_drive_t *drive, int uptodate, int nr_sectors)
                         nr_bytes = rq->hard_cur_sectors << 9;
         }
 
-        ret = __ide_end_request(drive, rq, uptodate, nr_bytes);
+        ret = __ide_end_request(drive, rq, uptodate, nr_bytes, 1);
 
         spin_unlock_irqrestore(&ide_lock, flags);
         return ret;
@@ -255,39 +257,13 @@ int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
                              int uptodate, int nr_sectors)
 {
         unsigned long flags;
-        int ret = 1;
+        int ret;
 
         spin_lock_irqsave(&ide_lock, flags);
-
         BUG_ON(!blk_rq_started(rq));
-
-        /*
-         * if failfast is set on a request, override number of sectors and
-         * complete the whole request right now
-         */
-        if (blk_noretry_request(rq) && end_io_error(uptodate))
-                nr_sectors = rq->hard_nr_sectors;
-
-        if (!blk_fs_request(rq) && end_io_error(uptodate) && !rq->errors)
-                rq->errors = -EIO;
-
-        /*
-         * decide whether to reenable DMA -- 3 is a random magic for now,
-         * if we DMA timeout more than 3 times, just stay in PIO
-         */
-        if (drive->state == DMA_PIO_RETRY && drive->retry_pio <= 3) {
-                drive->state = 0;
-                HWGROUP(drive)->hwif->ide_dma_on(drive);
-        }
-
-        if (!end_that_request_first(rq, uptodate, nr_sectors)) {
-                add_disk_randomness(rq->rq_disk);
-                if (blk_rq_tagged(rq))
-                        blk_queue_end_tag(drive->queue, rq);
-                end_that_request_last(rq, uptodate);
-                ret = 0;
-        }
+        ret = __ide_end_request(drive, rq, uptodate, nr_sectors << 9, 0);
         spin_unlock_irqrestore(&ide_lock, flags);
+
         return ret;
 }
 EXPORT_SYMBOL_GPL(ide_end_dequeued_request);
@@ -800,7 +776,20 @@ static ide_startstop_t do_special (ide_drive_t *drive)
                 s->b.set_tune = 0;
 
                 if (set_pio_mode_abuse(drive->hwif, req_pio)) {
-                        if (hwif->set_pio_mode)
+
+                        if (hwif->set_pio_mode == NULL)
+                                return ide_stopped;
+
+                        /*
+                         * take ide_lock for drive->[no_]unmask/[no_]io_32bit
+                         */
+                        if (req_pio == 8 || req_pio == 9) {
+                                unsigned long flags;
+
+                                spin_lock_irqsave(&ide_lock, flags);
+                                hwif->set_pio_mode(drive, req_pio);
+                                spin_unlock_irqrestore(&ide_lock, flags);
+                        } else
                                 hwif->set_pio_mode(drive, req_pio);
                 } else {
                         int keep_dma = drive->using_dma;
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index d4d790f91f91..95168833d069 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -693,35 +693,16 @@ static u8 ide_auto_reduce_xfer (ide_drive_t *drive)
 }
 #endif /* CONFIG_BLK_DEV_IDEDMA */
 
-/*
- * Update the 
- */
-int ide_driveid_update (ide_drive_t *drive)
+int ide_driveid_update(ide_drive_t *drive)
 {
-        ide_hwif_t *hwif        = HWIF(drive);
+        ide_hwif_t *hwif = drive->hwif;
         struct hd_driveid *id;
-#if 0
-        id = kmalloc(SECTOR_WORDS*4, GFP_ATOMIC);
-        if (!id)
-                return 0;
-
-        taskfile_lib_get_identify(drive, (char *)&id);
+        unsigned long timeout, flags;
 
-        ide_fix_driveid(id);
-        if (id) {
-                drive->id->dma_ultra = id->dma_ultra;
-                drive->id->dma_mword = id->dma_mword;
-                drive->id->dma_1word = id->dma_1word;
-                /* anything more ? */
-                kfree(id);
-        }
-        return 1;
-#else
         /*
          * Re-read drive->id for possible DMA mode
          * change (copied from ide-probe.c)
          */
-        unsigned long timeout, flags;
 
         SELECT_MASK(drive, 1);
         if (IDE_CONTROL_REG)
@@ -763,7 +744,6 @@ int ide_driveid_update (ide_drive_t *drive)
         }
 
         return 1;
-#endif
 }
 
 int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c
index 2b8009c50e91..e245521af7b5 100644
--- a/drivers/ide/ide-pnp.c
+++ b/drivers/ide/ide-pnp.c
@@ -40,9 +40,8 @@ static int idepnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id
         ide_std_init_ports(&hw, pnp_port_start(dev, 0),
                                 pnp_port_start(dev, 1));
         hw.irq = pnp_irq(dev, 0);
-        hw.dma = NO_DMA;
 
-        index = ide_register_hw(&hw, 1, &hwif);
+        index = ide_register_hw(&hw, NULL, 1, &hwif);
 
         if (index != -1) {
                 printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index);
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index e294c7415c27..d5146c57e5b3 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -717,7 +717,7 @@ EXPORT_SYMBOL_GPL(ide_undecoded_slave);
  * This routine only knows how to look for drive units 0 and 1
  * on an interface, so any setting of MAX_DRIVES > 2 won't work here.
  */
-static void probe_hwif(ide_hwif_t *hwif, void (*fixup)(ide_hwif_t *hwif))
+static void probe_hwif(ide_hwif_t *hwif)
 {
         unsigned long flags;
         unsigned int irqd;
@@ -819,8 +819,8 @@ static void probe_hwif(ide_hwif_t *hwif, void (*fixup)(ide_hwif_t *hwif))
                 return;
         }
 
-        if (fixup)
-                fixup(hwif);
+        if (hwif->fixup)
+                hwif->fixup(hwif);
 
         for (unit = 0; unit < MAX_DRIVES; ++unit) {
                 ide_drive_t *drive = &hwif->drives[unit];
@@ -859,10 +859,11 @@ static void probe_hwif(ide_hwif_t *hwif, void (*fixup)(ide_hwif_t *hwif))
 }
 
 static int hwif_init(ide_hwif_t *hwif);
+static void hwif_register_devices(ide_hwif_t *hwif);
 
-int probe_hwif_init_with_fixup(ide_hwif_t *hwif, void (*fixup)(ide_hwif_t *hwif))
+static int probe_hwif_init(ide_hwif_t *hwif)
 {
-        probe_hwif(hwif, fixup);
+        probe_hwif(hwif);
 
         if (!hwif_init(hwif)) {
                 printk(KERN_INFO "%s: failed to initialize IDE interface\n",
@@ -870,34 +871,12 @@ int probe_hwif_init_with_fixup(ide_hwif_t *hwif, void (*fixup)(ide_hwif_t *hwif)
                 return -1;
         }
 
-        if (hwif->present) {
-                u16 unit = 0;
-                int ret;
+        if (hwif->present)
+                hwif_register_devices(hwif);
 
-                for (unit = 0; unit < MAX_DRIVES; ++unit) {
-                        ide_drive_t *drive = &hwif->drives[unit];
-                        /* For now don't attach absent drives, we may
-                           want them on default or a new "empty" class
-                           for hotplug reprobing ? */
-                        if (drive->present) {
-                                ret = device_register(&drive->gendev);
-                                if (ret < 0)
-                                        printk(KERN_WARNING "IDE: %s: "
-                                                "device_register error: %d\n",
-                                                __FUNCTION__, ret);
-                        }
-                }
-        }
         return 0;
 }
 
-int probe_hwif_init(ide_hwif_t *hwif)
-{
-        return probe_hwif_init_with_fixup(hwif, NULL);
-}
-
-EXPORT_SYMBOL(probe_hwif_init);
-
 #if MAX_HWIFS > 1
 /*
  * save_match() is used to simplify logic in init_irq() below.
@@ -1379,6 +1358,24 @@ out:
         return 0;
 }
 
+static void hwif_register_devices(ide_hwif_t *hwif)
+{
+        unsigned int i;
+
+        for (i = 0; i < MAX_DRIVES; i++) {
+                ide_drive_t *drive = &hwif->drives[i];
+
+                if (drive->present) {
+                        int ret = device_register(&drive->gendev);
+
+                        if (ret < 0)
+                                printk(KERN_WARNING "IDE: %s: "
+                                        "device_register error: %d\n",
+                                        __FUNCTION__, ret);
+                }
+        }
+}
+
 int ideprobe_init (void)
 {
         unsigned int index;
@@ -1390,27 +1387,18 @@ int ideprobe_init (void)
 
         for (index = 0; index < MAX_HWIFS; ++index)
                 if (probe[index])
-                        probe_hwif(&ide_hwifs[index], NULL);
+                        probe_hwif(&ide_hwifs[index]);
         for (index = 0; index < MAX_HWIFS; ++index)
                 if (probe[index])
                         hwif_init(&ide_hwifs[index]);
         for (index = 0; index < MAX_HWIFS; ++index) {
                 if (probe[index]) {
                         ide_hwif_t *hwif = &ide_hwifs[index];
-                        int unit;
                         if (!hwif->present)
                                 continue;
                         if (hwif->chipset == ide_unknown || hwif->chipset == ide_forced)
                                 hwif->chipset = ide_generic;
-                        for (unit = 0; unit < MAX_DRIVES; ++unit)
-                                if (hwif->drives[unit].present) {
-                                        int ret = device_register(
-                                                &hwif->drives[unit].gendev);
-                                        if (ret < 0)
-                                                printk(KERN_WARNING "IDE: %s: "
-                                                        "device_register error: %d\n",
-                                                        __FUNCTION__, ret);
-                                }
+                        hwif_register_devices(hwif);
                 }
         }
         for (index = 0; index < MAX_HWIFS; ++index)
@@ -1420,3 +1408,22 @@ int ideprobe_init (void)
 }
 
 EXPORT_SYMBOL_GPL(ideprobe_init);
+
+int ide_device_add(u8 idx[4])
+{
+        int i, rc = 0;
+
+        for (i = 0; i < 4; i++) {
+                if (idx[i] != 0xff)
+                        rc |= probe_hwif_init(&ide_hwifs[idx[i]]);
+        }
+
+        for (i = 0; i < 4; i++) {
+                if (idx[i] != 0xff)
+                        ide_proc_register_port(&ide_hwifs[idx[i]]);
+        }
+
+        return rc;
+}
+
+EXPORT_SYMBOL_GPL(ide_device_add);
diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c
index fc1d8ae6a803..a4007d30da52 100644
--- a/drivers/ide/ide-proc.c
+++ b/drivers/ide/ide-proc.c
@@ -804,8 +804,6 @@ void ide_proc_register_port(ide_hwif_t *hwif)
         create_proc_ide_drives(hwif);
 }
 
-EXPORT_SYMBOL_GPL(ide_proc_register_port);
-
 #ifdef CONFIG_BLK_DEV_IDEPCI
 void ide_pci_create_host_proc(const char *name, get_info_t *get_info)
 {
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index b463cef2de63..7b9181b5469d 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -621,7 +621,6 @@ typedef struct os_dat_s {
  */
 #define USE_IOTRACE     0
 #if USE_IOTRACE
-#include <linux/io_trace.h>
 #define IO_IDETAPE_FIFO 500
 #endif
 
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 2a3c8d498343..73ef6bf5fbcc 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -8,23 +8,6 @@
  *  Copyright (C) 2003-2004     Bartlomiej Zolnierkiewicz
  *
  *  The big the bad and the ugly.
- *
- *  Problems to be fixed because of BH interface or the lack therefore.
- *
- *  Fill me in stupid !!!
- *
- *  HOST:
- *      General refers to the Controller and Driver "pair".
- *  DATA HANDLER:
- *      Under the context of Linux it generally refers to an interrupt handler.
- *      However, it correctly describes the 'HOST'
- *  DATA BLOCK:
- *      The amount of data needed to be transfered as predefined in the
- *      setup of the device.
- *  STORAGE ATOMIC:
- *      The 'DATA BLOCK' associated to the 'DATA HANDLER', and can be as
- *      small as a single sector or as large as the entire command block
- *      request.
  */
 
 #include <linux/module.h>
@@ -695,9 +678,6 @@ int ide_wait_cmd (ide_drive_t *drive, u8 cmd, u8 nsect, u8 feature, u8 sectors,
         return ide_do_drive_cmd(drive, &rq, ide_wait);
 }
 
-/*
- * FIXME : this needs to map into at taskfile. <andre@linux-ide.org>
- */
 int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
 {
         int err = 0;
@@ -761,9 +741,6 @@ static int ide_wait_cmd_task(ide_drive_t *drive, u8 *buf)
         return ide_do_drive_cmd(drive, &rq, ide_wait);
 }
 
-/*
- * FIXME : this needs to map into at taskfile. <andre@linux-ide.org>
- */
 int ide_task_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
 {
         void __user *p = (void __user *)arg;
@@ -860,9 +837,14 @@ ide_startstop_t flagged_taskfile (ide_drive_t *drive, ide_task_t *task)
                 case TASKFILE_OUT_DMA:
                 case TASKFILE_IN_DMAQ:
                 case TASKFILE_IN_DMA:
-                        hwif->dma_setup(drive);
-                        hwif->dma_exec_cmd(drive, taskfile->command);
-                        hwif->dma_start(drive);
+                        if (!drive->using_dma)
+                                break;
+
+                        if (!hwif->dma_setup(drive)) {
+                                hwif->dma_exec_cmd(drive, taskfile->command);
+                                hwif->dma_start(drive);
+                                return ide_started;
+                        }
                         break;
 
                 default:
@@ -876,7 +858,8 @@ ide_startstop_t flagged_taskfile (ide_drive_t *drive, ide_task_t *task)
                                 return task->prehandler(drive, task->rq);
                         }
                         ide_execute_command(drive, taskfile->command, task->handler, WAIT_WORSTCASE, NULL);
+                        return ide_started;
         }
 
-        return ide_started;
+        return ide_stopped;
 }
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 961e6c897286..674a65c1a130 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -168,7 +168,6 @@ static void init_hwif_default(ide_hwif_t *hwif, unsigned int index)
 
         ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, &hwif->irq);
 
-        memcpy(&hwif->hw, &hw, sizeof(hw));
         memcpy(hwif->io_ports, hw.io_ports, sizeof(hw.io_ports));
 
         hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
@@ -214,7 +213,7 @@ static void __init init_ide_data (void)
                 init_hwif_data(hwif, index);
                 init_hwif_default(hwif, index);
 #if !defined(CONFIG_PPC32) || !defined(CONFIG_PCI)
-                hwif->irq = hwif->hw.irq =
+                hwif->irq =
                         ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]);
 #endif
         }
@@ -265,6 +264,30 @@ static int ide_system_bus_speed(void)
         return system_bus_speed;
 }
 
+ide_hwif_t * ide_find_port(unsigned long base)
+{
+        ide_hwif_t *hwif;
+        int i;
+
+        for (i = 0; i < MAX_HWIFS; i++) {
+                hwif = &ide_hwifs[i];
+                if (hwif->io_ports[IDE_DATA_OFFSET] == base)
+                        goto found;
+        }
+
+        for (i = 0; i < MAX_HWIFS; i++) {
+                hwif = &ide_hwifs[i];
+                if (hwif->io_ports[IDE_DATA_OFFSET] == 0)
+                        goto found;
+        }
+
+        hwif = NULL;
+found:
+        return hwif;
+}
+
+EXPORT_SYMBOL_GPL(ide_find_port);
+
 static struct resource* hwif_request_region(ide_hwif_t *hwif,
                                             unsigned long addr, int num)
 {
@@ -391,6 +414,8 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
         hwif->cds                       = tmp_hwif->cds;
 #endif
 
+        hwif->fixup                     = tmp_hwif->fixup;
+
         hwif->set_pio_mode              = tmp_hwif->set_pio_mode;
         hwif->set_dma_mode              = tmp_hwif->set_dma_mode;
         hwif->mdma_filter               = tmp_hwif->mdma_filter;
@@ -652,7 +677,6 @@ void ide_setup_ports (	hw_regs_t *hw,
                 }
         }
         hw->irq = irq;
-        hw->dma = NO_DMA;
         hw->ack_intr = ack_intr;
 /*
  *      hw->iops = iops;
@@ -660,11 +684,11 @@ void ide_setup_ports (	hw_regs_t *hw,
 }
 
 /**
- *      ide_register_hw_with_fixup      -       register IDE interface
+ *      ide_register_hw         -       register IDE interface
  *      @hw: hardware registers
+ *      @fixup: fixup function
  *      @initializing: set while initializing built-in drivers
  *      @hwifp: pointer to returned hwif
- *      @fixup: fixup function
  *
  *      Register an IDE interface, specifying exactly the registers etc.
  *      Set init=1 iff calling before probes have taken place.
@@ -672,9 +696,8 @@ void ide_setup_ports (	hw_regs_t *hw,
  *      Returns -1 on error.
  */
 
-int ide_register_hw_with_fixup(hw_regs_t *hw, int initializing,
-                               ide_hwif_t **hwifp,
-                               void(*fixup)(ide_hwif_t *hwif))
+int ide_register_hw(hw_regs_t *hw, void (*fixup)(ide_hwif_t *),
+                    int initializing, ide_hwif_t **hwifp)
 {
         int index, retry = 1;
         ide_hwif_t *hwif;
@@ -682,7 +705,7 @@ int ide_register_hw_with_fixup(hw_regs_t *hw, int initializing,
         do {
                 for (index = 0; index < MAX_HWIFS; ++index) {
                         hwif = &ide_hwifs[index];
-                        if (hwif->hw.io_ports[IDE_DATA_OFFSET] == hw->io_ports[IDE_DATA_OFFSET])
+                        if (hwif->io_ports[IDE_DATA_OFFSET] == hw->io_ports[IDE_DATA_OFFSET])
                                 goto found;
                 }
                 for (index = 0; index < MAX_HWIFS; ++index) {
@@ -690,7 +713,7 @@ int ide_register_hw_with_fixup(hw_regs_t *hw, int initializing,
                         if (hwif->hold)
                                 continue;
                         if ((!hwif->present && !hwif->mate && !initializing) ||
-                            (!hwif->hw.io_ports[IDE_DATA_OFFSET] && initializing))
+                            (!hwif->io_ports[IDE_DATA_OFFSET] && initializing))
                                 goto found;
                 }
                 for (index = 0; index < MAX_HWIFS; index++)
@@ -706,16 +729,18 @@ found:
         }
         if (hwif->present)
                 return -1;
-        memcpy(&hwif->hw, hw, sizeof(*hw));
-        memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
+        memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports));
         hwif->irq = hw->irq;
         hwif->noprobe = 0;
+        hwif->fixup = fixup;
         hwif->chipset = hw->chipset;
         hwif->gendev.parent = hw->dev;
+        hwif->ack_intr = hw->ack_intr;
+
+        if (initializing == 0) {
+                u8 idx[4] = { index, 0xff, 0xff, 0xff };
 
-        if (!initializing) {
-                probe_hwif_init_with_fixup(hwif, fixup);
-                ide_proc_register_port(hwif);
+                ide_device_add(idx);
         }
 
         if (hwifp)
@@ -724,13 +749,6 @@ found:
         return (initializing || hwif->present) ? index : -1;
 }
 
-EXPORT_SYMBOL(ide_register_hw_with_fixup);
-
-int ide_register_hw(hw_regs_t *hw, int initializing, ide_hwif_t **hwifp)
-{
-        return ide_register_hw_with_fixup(hw, initializing, hwifp, NULL);
-}
-
 EXPORT_SYMBOL(ide_register_hw);
 
 /*
@@ -1046,7 +1064,7 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
                         ide_init_hwif_ports(&hw, (unsigned long) args[0],
                                             (unsigned long) args[1], NULL);
                         hw.irq = args[2];
-                        if (ide_register_hw(&hw, 0, NULL) == -1)
+                        if (ide_register_hw(&hw, NULL, 0, NULL) == -1)
                                 return -EIO;
                         return 0;
                 }
@@ -1397,6 +1415,9 @@ static int __init ide_setup(char *s)
                         "reset", "minus6", "ata66", "minus8", "minus9",
                         "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb",
                         "dtc2278", "umc8672", "ali14xx", NULL };
+
+                hw_regs_t hwregs;
+
                 hw = s[3] - '0';
                 hwif = &ide_hwifs[hw];
                 i = match_parm(&s[4], ide_words, vals, 3);
@@ -1506,9 +1527,9 @@ static int __init ide_setup(char *s)
                         case 2: /* base,ctl */
                                 vals[2] = 0;    /* default irq = probe for it */
                         case 3: /* base,ctl,irq */
-                                hwif->hw.irq = vals[2];
-                                ide_init_hwif_ports(&hwif->hw, (unsigned long) vals[0], (unsigned long) vals[1], &hwif->irq);
-                                memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
+                                memset(&hwregs, 0, sizeof(hwregs));
+                                ide_init_hwif_ports(&hwregs, vals[0], vals[1], &hwif->irq);
+                                memcpy(hwif->io_ports, hwregs.io_ports, sizeof(hwif->io_ports));
                                 hwif->irq      = vals[2];
                                 hwif->noprobe  = 0;
                                 hwif->chipset  = ide_forced;
diff --git a/drivers/ide/legacy/ali14xx.c b/drivers/ide/legacy/ali14xx.c
index 2f0ef9b44033..10311ecc674a 100644
--- a/drivers/ide/legacy/ali14xx.c
+++ b/drivers/ide/legacy/ali14xx.c
@@ -102,6 +102,8 @@ static void outReg (u8 data, u8 reg)
         outb_p(data, dataPort);
 }
 
+static DEFINE_SPINLOCK(ali14xx_lock);
+
 /*
  * Set PIO mode for the specified drive.
  * This function computes timing parameters
@@ -129,14 +131,14 @@ static void ali14xx_set_pio_mode(ide_drive_t *drive, const u8 pio)
 
         /* stuff timing parameters into controller registers */
         driveNum = (HWIF(drive)->index << 1) + drive->select.b.unit;
-        spin_lock_irqsave(&ide_lock, flags);
+        spin_lock_irqsave(&ali14xx_lock, flags);
         outb_p(regOn, basePort);
         outReg(param1, regTab[driveNum].reg1);
         outReg(param2, regTab[driveNum].reg2);
         outReg(param3, regTab[driveNum].reg3);
         outReg(param4, regTab[driveNum].reg4);
         outb_p(regOff, basePort);
-        spin_unlock_irqrestore(&ide_lock, flags);
+        spin_unlock_irqrestore(&ali14xx_lock, flags);
 }
 
 /*
@@ -193,6 +195,7 @@ static int __init initRegisters (void) {
 static int __init ali14xx_probe(void)
 {
         ide_hwif_t *hwif, *mate;
+        static u8 idx[4] = { 0, 1, 0xff, 0xff };
 
         printk(KERN_DEBUG "ali14xx: base=0x%03x, regOn=0x%02x.\n",
                           basePort, regOn);
@@ -217,11 +220,7 @@ static int __init ali14xx_probe(void)
         mate->mate = hwif;
         mate->channel = 1;
 
-        probe_hwif_init(hwif);
-        probe_hwif_init(mate);
-
-        ide_proc_register_port(hwif);
-        ide_proc_register_port(mate);
+        ide_device_add(idx);
 
         return 0;
 }
diff --git a/drivers/ide/legacy/buddha.c b/drivers/ide/legacy/buddha.c
index 101aee1711c4..4a0be251a05f 100644
--- a/drivers/ide/legacy/buddha.c
+++ b/drivers/ide/legacy/buddha.c
@@ -212,8 +212,8 @@ fail_base2:
 //                                              xsurf_iops,
                                                 IRQ_AMIGA_PORTS);
                         }       
-                        
-                        index = ide_register_hw(&hw, 1, &hwif);
+
+                        index = ide_register_hw(&hw, NULL, 1, &hwif);
                         if (index != -1) {
                                 hwif->mmio = 1;
                                 printk("ide%d: ", index);
diff --git a/drivers/ide/legacy/dtc2278.c b/drivers/ide/legacy/dtc2278.c
index f16521254867..24a845d45bd2 100644
--- a/drivers/ide/legacy/dtc2278.c
+++ b/drivers/ide/legacy/dtc2278.c
@@ -67,20 +67,24 @@ static void sub22 (char b, char c)
         }
 }
 
+static DEFINE_SPINLOCK(dtc2278_lock);
+
 static void dtc2278_set_pio_mode(ide_drive_t *drive, const u8 pio)
 {
         unsigned long flags;
 
         if (pio >= 3) {
-                spin_lock_irqsave(&ide_lock, flags);
+                spin_lock_irqsave(&dtc2278_lock, flags);
                 /*
                  * This enables PIO mode4 (3?) on the first interface
                  */
                 sub22(1,0xc3);
                 sub22(0,0xa0);
-                spin_unlock_irqrestore(&ide_lock, flags);
+                spin_unlock_irqrestore(&dtc2278_lock, flags);
         } else {
                 /* we don't know how to set it back again.. */
+                /* Actually we do - there is a data sheet available for the
+                   Winbond but does anyone actually care */
         }
 
         /*
@@ -94,6 +98,7 @@ static int __init dtc2278_probe(void)
 {
         unsigned long flags;
         ide_hwif_t *hwif, *mate;
+        static u8 idx[4] = { 0, 1, 0xff, 0xff };
 
         hwif = &ide_hwifs[0];
         mate = &ide_hwifs[1];
@@ -129,16 +134,13 @@ static int __init dtc2278_probe(void)
 
         mate->serialized = 1;
         mate->chipset = ide_dtc2278;
+        mate->pio_mask = ATA_PIO4;
         mate->drives[0].no_unmask = 1;
         mate->drives[1].no_unmask = 1;
         mate->mate = hwif;
         mate->channel = 1;
 
-        probe_hwif_init(hwif);
-        probe_hwif_init(mate);
-
-        ide_proc_register_port(hwif);
-        ide_proc_register_port(mate);
+        ide_device_add(idx);
 
         return 0;
 }
diff --git a/drivers/ide/legacy/falconide.c b/drivers/ide/legacy/falconide.c
index f0829b83e970..7d7936f1b900 100644
--- a/drivers/ide/legacy/falconide.c
+++ b/drivers/ide/legacy/falconide.c
@@ -72,7 +72,7 @@ void __init falconide_init(void)
                         0, 0, NULL,
 //                      falconide_iops,
                         IRQ_MFP_IDE);
-        index = ide_register_hw(&hw, 1, NULL);
+        index = ide_register_hw(&hw, NULL, 1, NULL);
 
         if (index != -1)
             printk("ide%d: Falcon IDE interface\n", index);
diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c
index 0830a021bbb6..53331ee1e957 100644
--- a/drivers/ide/legacy/gayle.c
+++ b/drivers/ide/legacy/gayle.c
@@ -165,7 +165,7 @@ found:
 //                      &gayle_iops,
                         IRQ_AMIGA_PORTS);
 
-        index = ide_register_hw(&hw, 1, &hwif);
+        index = ide_register_hw(&hw, NULL, 1, &hwif);
         if (index != -1) {
             hwif->mmio = 1;
             switch (i) {
diff --git a/drivers/ide/legacy/ht6560b.c b/drivers/ide/legacy/ht6560b.c
index 2e5a9cc5c0f7..a4245d13f11b 100644
--- a/drivers/ide/legacy/ht6560b.c
+++ b/drivers/ide/legacy/ht6560b.c
@@ -247,6 +247,8 @@ static u8 ht_pio2timings(ide_drive_t *drive, const u8 pio)
         }
 }
 
+static DEFINE_SPINLOCK(ht6560b_lock);
+
 /*
  *  Enable/Disable so called prefetch mode
  */
@@ -254,9 +256,9 @@ static void ht_set_prefetch(ide_drive_t *drive, u8 state)
 {
         unsigned long flags;
         int t = HT_PREFETCH_MODE << 8;
-        
-        spin_lock_irqsave(&ide_lock, flags);
-        
+
+        spin_lock_irqsave(&ht6560b_lock, flags);
+
         /*
          *  Prefetch mode and unmask irq seems to conflict
          */
@@ -268,9 +270,9 @@ static void ht_set_prefetch(ide_drive_t *drive, u8 state)
                 drive->drive_data &= ~t;  /* disable prefetch mode */
                 drive->no_unmask = 0;
         }
-        
-        spin_unlock_irqrestore(&ide_lock, flags);
-        
+
+        spin_unlock_irqrestore(&ht6560b_lock, flags);
+
 #ifdef DEBUG
         printk("ht6560b: drive %s prefetch mode %sabled\n", drive->name, (state ? "en" : "dis"));
 #endif
@@ -287,16 +289,14 @@ static void ht6560b_set_pio_mode(ide_drive_t *drive, const u8 pio)
                 ht_set_prefetch(drive, pio & 1);
                 return;
         }
-        
+
         timing = ht_pio2timings(drive, pio);
-        
-        spin_lock_irqsave(&ide_lock, flags);
-        
+
+        spin_lock_irqsave(&ht6560b_lock, flags);
         drive->drive_data &= 0xff00;
         drive->drive_data |= timing;
-        
-        spin_unlock_irqrestore(&ide_lock, flags);
-        
+        spin_unlock_irqrestore(&ht6560b_lock, flags);
+
 #ifdef DEBUG
         printk("ht6560b: drive %s tuned to pio mode %#x timing=%#x\n", drive->name, pio, timing);
 #endif
@@ -311,6 +311,7 @@ MODULE_PARM_DESC(probe, "probe for HT6560B chipset");
 int __init ht6560b_init(void)
 {
         ide_hwif_t *hwif, *mate;
+        static u8 idx[4] = { 0, 1, 0xff, 0xff };
         int t;
 
         if (probe_ht6560b == 0)
@@ -359,11 +360,7 @@ int __init ht6560b_init(void)
         mate->drives[0].drive_data = t;
         mate->drives[1].drive_data = t;
 
-        probe_hwif_init(hwif);
-        probe_hwif_init(mate);
-
-        ide_proc_register_port(hwif);
-        ide_proc_register_port(mate);
+        ide_device_add(idx);
 
         return 0;
 
diff --git a/drivers/ide/legacy/ide-cs.c b/drivers/ide/legacy/ide-cs.c
index e8e360c2619d..03715c058664 100644
--- a/drivers/ide/legacy/ide-cs.c
+++ b/drivers/ide/legacy/ide-cs.c
@@ -153,7 +153,7 @@ static int idecs_register(unsigned long io, unsigned long ctl, unsigned long irq
     hw.irq = irq;
     hw.chipset = ide_pci;
     hw.dev = &handle->dev;
-    return ide_register_hw_with_fixup(&hw, 0, NULL, ide_undecoded_slave);
+    return ide_register_hw(&hw, &ide_undecoded_slave, 0, NULL);
 }
 
 /*======================================================================
diff --git a/drivers/ide/legacy/ide_platform.c b/drivers/ide/legacy/ide_platform.c
index b992b2b91fe2..7bb79f53dac8 100644
--- a/drivers/ide/legacy/ide_platform.c
+++ b/drivers/ide/legacy/ide_platform.c
@@ -33,39 +33,24 @@ static ide_hwif_t *__devinit plat_ide_locate_hwif(void __iomem *base,
             int mmio)
 {
         unsigned long port = (unsigned long)base;
-        ide_hwif_t *hwif;
-        int index, i;
-
-        for (index = 0; index < MAX_HWIFS; ++index) {
-                hwif = ide_hwifs + index;
-                if (hwif->io_ports[IDE_DATA_OFFSET] == port)
-                        goto found;
-        }
-
-        for (index = 0; index < MAX_HWIFS; ++index) {
-                hwif = ide_hwifs + index;
-                if (hwif->io_ports[IDE_DATA_OFFSET] == 0)
-                        goto found;
-        }
+        ide_hwif_t *hwif = ide_find_port(port);
+        int i;
 
-        return NULL;
-
-found:
+        if (hwif == NULL)
+                goto out;
 
-        hwif->hw.io_ports[IDE_DATA_OFFSET] = port;
+        hwif->io_ports[IDE_DATA_OFFSET] = port;
 
         port += (1 << pdata->ioport_shift);
         for (i = IDE_ERROR_OFFSET; i <= IDE_STATUS_OFFSET;
              i++, port += (1 << pdata->ioport_shift))
-                hwif->hw.io_ports[i] = port;
+                hwif->io_ports[i] = port;
 
-        hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
+        hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
 
-        memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
-        hwif->hw.irq = hwif->irq = irq;
+        hwif->irq = irq;
 
-        hwif->hw.dma = NO_DMA;
-        hwif->chipset = hwif->hw.chipset = ide_generic;
+        hwif->chipset = ide_generic;
 
         if (mmio) {
                 hwif->mmio = 1;
@@ -73,8 +58,8 @@ found:
         }
 
         hwif_prop.hwif = hwif;
-        hwif_prop.index = index;
-
+        hwif_prop.index = hwif->index;
+out:
         return hwif;
 }
 
@@ -83,6 +68,7 @@ static int __devinit plat_ide_probe(struct platform_device *pdev)
         struct resource *res_base, *res_alt, *res_irq;
         ide_hwif_t *hwif;
         struct pata_platform_info *pdata;
+        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
         int ret = 0;
         int mmio = 0;
 
@@ -130,10 +116,11 @@ static int __devinit plat_ide_probe(struct platform_device *pdev)
         hwif->gendev.parent = &pdev->dev;
         hwif->noprobe = 0;
 
-        probe_hwif_init(hwif);
+        idx[0] = hwif->index;
+
+        ide_device_add(idx);
 
         platform_set_drvdata(pdev, hwif);
-        ide_proc_register_port(hwif);
 
         return 0;
 
diff --git a/drivers/ide/legacy/macide.c b/drivers/ide/legacy/macide.c
index b557c45a5a9d..e87cd2f16430 100644
--- a/drivers/ide/legacy/macide.c
+++ b/drivers/ide/legacy/macide.c
@@ -93,21 +93,21 @@ void macide_init(void)
                                 0, 0, macide_ack_intr,
 //                              quadra_ide_iops,
                                 IRQ_NUBUS_F);
-                index = ide_register_hw(&hw, 1, &hwif);
+                index = ide_register_hw(&hw, NULL, 1, &hwif);
                 break;
         case MAC_IDE_PB:
                 ide_setup_ports(&hw, IDE_BASE, macide_offsets,
                                 0, 0, macide_ack_intr,
 //                              macide_pb_iops,
                                 IRQ_NUBUS_C);
-                index = ide_register_hw(&hw, 1, &hwif);
+                index = ide_register_hw(&hw, NULL, 1, &hwif);
                 break;
         case MAC_IDE_BABOON:
                 ide_setup_ports(&hw, BABOON_BASE, macide_offsets,
                                 0, 0, NULL,
 //                              macide_baboon_iops,
                                 IRQ_BABOON_1);
-                index = ide_register_hw(&hw, 1, &hwif);
+                index = ide_register_hw(&hw, NULL, 1, &hwif);
                 if (index == -1) break;
                 if (macintosh_config->ident == MAC_MODEL_PB190) {
 
diff --git a/drivers/ide/legacy/q40ide.c b/drivers/ide/legacy/q40ide.c
index 16ba70b46096..a73db1bd482d 100644
--- a/drivers/ide/legacy/q40ide.c
+++ b/drivers/ide/legacy/q40ide.c
@@ -89,9 +89,8 @@ void q40_ide_setup_ports ( hw_regs_t *hw,
                 else
                         hw->io_ports[i] = Q40_ISA_IO_B(base + offsets[i]);
         }
-        
+
         hw->irq = irq;
-        hw->dma = NO_DMA;
         hw->ack_intr = ack_intr;
 /*
  *      hw->iops = iops;
@@ -142,7 +141,7 @@ void q40ide_init(void)
                         0, NULL,
 //                      m68kide_iops,
                         q40ide_default_irq(pcide_bases[i]));
-        index = ide_register_hw(&hw, 1, &hwif);
+        index = ide_register_hw(&hw, NULL, 1, &hwif);
         // **FIXME**
         if (index != -1)
                 hwif->mmio = 1;
diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c
index 0c81d2d0b941..912e73853faa 100644
--- a/drivers/ide/legacy/qd65xx.c
+++ b/drivers/ide/legacy/qd65xx.c
@@ -89,26 +89,6 @@
 
 static int timings[4]={-1,-1,-1,-1}; /* stores current timing for each timer */
 
-static void qd_write_reg (u8 content, unsigned long reg)
-{
-        unsigned long flags;
-
-        spin_lock_irqsave(&ide_lock, flags);
-        outb(content,reg);
-        spin_unlock_irqrestore(&ide_lock, flags);
-}
-
-static u8 __init qd_read_reg (unsigned long reg)
-{
-        unsigned long flags;
-        u8 read;
-
-        spin_lock_irqsave(&ide_lock, flags);
-        read = inb(reg);
-        spin_unlock_irqrestore(&ide_lock, flags);
-        return read;
-}
-
 /*
  * qd_select:
  *
@@ -121,7 +101,7 @@ static void qd_select (ide_drive_t *drive)
                         (QD_TIMREG(drive) & 0x02);
 
         if (timings[index] != QD_TIMING(drive))
-                qd_write_reg(timings[index] = QD_TIMING(drive), QD_TIMREG(drive));
+                outb(timings[index] = QD_TIMING(drive), QD_TIMREG(drive));
 }
 
 /*
@@ -284,7 +264,7 @@ static void qd6580_set_pio_mode(ide_drive_t *drive, const u8 pio)
         }
 
         if (!HWIF(drive)->channel && drive->media != ide_disk) {
-                qd_write_reg(0x5f, QD_CONTROL_PORT);
+                outb(0x5f, QD_CONTROL_PORT);
                 printk(KERN_WARNING "%s: ATAPI: disabled read-ahead FIFO "
                         "and post-write buffer on %s.\n",
                         drive->name, HWIF(drive)->name);
@@ -301,16 +281,15 @@ static void qd6580_set_pio_mode(ide_drive_t *drive, const u8 pio)
 
 static int __init qd_testreg(int port)
 {
-        u8 savereg;
-        u8 readreg;
         unsigned long flags;
+        u8 savereg, readreg;
 
-        spin_lock_irqsave(&ide_lock, flags);
+        local_irq_save(flags);
         savereg = inb_p(port);
         outb_p(QD_TESTVAL, port);       /* safe value */
         readreg = inb_p(port);
         outb(savereg, port);
-        spin_unlock_irqrestore(&ide_lock, flags);
+        local_irq_restore(flags);
 
         if (savereg == QD_TESTVAL) {
                 printk(KERN_ERR "Outch ! the probe for qd65xx isn't reliable !\n");
@@ -364,13 +343,13 @@ static void __exit qd_unsetup(ide_hwif_t *hwif)
 
         if (set_pio_mode == (void *)qd6500_set_pio_mode) {
                 // will do it for both
-                qd_write_reg(QD6500_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
+                outb(QD6500_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
         } else if (set_pio_mode == (void *)qd6580_set_pio_mode) {
                 if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) {
-                        qd_write_reg(QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
-                        qd_write_reg(QD6580_DEF_DATA2, QD_TIMREG(&hwif->drives[1]));
+                        outb(QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
+                        outb(QD6580_DEF_DATA2, QD_TIMREG(&hwif->drives[1]));
                 } else {
-                        qd_write_reg(hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
+                        outb(hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
                 }
         } else {
                 printk(KERN_WARNING "Unknown qd65xx tuning fonction !\n");
@@ -389,10 +368,11 @@ static void __exit qd_unsetup(ide_hwif_t *hwif)
 static int __init qd_probe(int base)
 {
         ide_hwif_t *hwif;
+        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
         u8 config;
         u8 unit;
 
-        config = qd_read_reg(QD_CONFIG_PORT);
+        config = inb(QD_CONFIG_PORT);
 
         if (! ((config & QD_CONFIG_BASEPORT) >> 1 == (base == 0xb0)) )
                 return 1;
@@ -419,9 +399,9 @@ static int __init qd_probe(int base)
 
                 hwif->set_pio_mode = &qd6500_set_pio_mode;
 
-                probe_hwif_init(hwif);
+                idx[0] = unit;
 
-                ide_proc_register_port(hwif);
+                ide_device_add(idx);
 
                 return 1;
         }
@@ -436,7 +416,7 @@ static int __init qd_probe(int base)
 
                 /* qd6580 found */
 
-                control = qd_read_reg(QD_CONTROL_PORT);
+                control = inb(QD_CONTROL_PORT);
 
                 printk(KERN_NOTICE "qd6580 at %#x\n", base);
                 printk(KERN_DEBUG "qd6580: config=%#x, control=%#x, ID3=%u\n",
@@ -453,11 +433,11 @@ static int __init qd_probe(int base)
 
                         hwif->set_pio_mode = &qd6580_set_pio_mode;
 
-                        probe_hwif_init(hwif);
+                        idx[0] = unit;
 
-                        qd_write_reg(QD_DEF_CONTR,QD_CONTROL_PORT);
+                        ide_device_add(idx);
 
-                        ide_proc_register_port(hwif);
+                        outb(QD_DEF_CONTR, QD_CONTROL_PORT);
 
                         return 1;
                 } else {
@@ -474,19 +454,17 @@ static int __init qd_probe(int base)
 
                         hwif->set_pio_mode = &qd6580_set_pio_mode;
 
-                        probe_hwif_init(hwif);
-
                         qd_setup(mate, base, config | (control << 8),
                                  QD6580_DEF_DATA2, QD6580_DEF_DATA2);
 
                         mate->set_pio_mode = &qd6580_set_pio_mode;
 
-                        probe_hwif_init(mate);
+                        idx[0] = 0;
+                        idx[1] = 1;
 
-                        qd_write_reg(QD_DEF_CONTR,QD_CONTROL_PORT);
+                        ide_device_add(idx);
 
-                        ide_proc_register_port(hwif);
-                        ide_proc_register_port(mate);
+                        outb(QD_DEF_CONTR, QD_CONTROL_PORT);
 
                         return 0; /* no other qd65xx possible */
                 }
diff --git a/drivers/ide/legacy/umc8672.c b/drivers/ide/legacy/umc8672.c
index 1151c92dd531..79577b916874 100644
--- a/drivers/ide/legacy/umc8672.c
+++ b/drivers/ide/legacy/umc8672.c
@@ -124,8 +124,9 @@ static void umc_set_pio_mode(ide_drive_t *drive, const u8 pio)
 
 static int __init umc8672_probe(void)
 {
-        unsigned long flags;
         ide_hwif_t *hwif, *mate;
+        unsigned long flags;
+        static u8 idx[4] = { 0, 1, 0xff, 0xff };
 
         if (!request_region(0x108, 2, "umc8672")) {
                 printk(KERN_ERR "umc8672: ports 0x108-0x109 already in use.\n");
@@ -158,11 +159,7 @@ static int __init umc8672_probe(void)
         mate->mate = hwif;
         mate->channel = 1;
 
-        probe_hwif_init(hwif);
-        probe_hwif_init(mate);
-
-        ide_proc_register_port(hwif);
-        ide_proc_register_port(mate);
+        ide_device_add(idx);
 
         return 0;
 }
diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index 2f322d7e881b..1de58566e5b6 100644
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -601,8 +601,9 @@ static int au_ide_probe(struct device *dev)
         _auide_hwif *ahwif = &auide_hwif;
         ide_hwif_t *hwif;
         struct resource *res;
-        hw_regs_t *hw;
         int ret = 0;
+        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+        hw_regs_t hw;
 
 #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA)
         char *mode = "MWDMA2";
@@ -644,12 +645,12 @@ static int au_ide_probe(struct device *dev)
         /* FIXME:  This might possibly break PCMCIA IDE devices */
 
         hwif                            = &ide_hwifs[pdev->id];
-        hw                              = &hwif->hw;
-        hwif->irq = hw->irq             = ahwif->irq;
+        hwif->irq                       = ahwif->irq;
         hwif->chipset                   = ide_au1xxx;
 
-        auide_setup_ports(hw, ahwif);
-        memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports));
+        memset(&hw, 0, sizeof(hw));
+        auide_setup_ports(&hw, ahwif);
+        memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports));
 
         hwif->ultra_mask                = 0x0;  /* Disable Ultra DMA */
 #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
@@ -706,8 +707,10 @@ static int au_ide_probe(struct device *dev)
         hwif->config_data               = 0;    /* no chipset-specific code */
 
         hwif->drives[0].autotune        = 1;    /* 1=autotune, 2=noautotune, 0=default */
+        hwif->drives[1].autotune        = 1;
 #endif
-        hwif->drives[0].no_io_32bit     = 1;   
+        hwif->drives[0].no_io_32bit     = 1;
+        hwif->drives[1].no_io_32bit     = 1;
 
         auide_hwif.hwif                 = hwif;
         hwif->hwif_data                 = &auide_hwif;
@@ -717,9 +720,9 @@ static int au_ide_probe(struct device *dev)
         dbdma_init_done = 1;
 #endif
 
-        probe_hwif_init(hwif);
+        idx[0] = hwif->index;
 
-        ide_proc_register_port(hwif);
+        ide_device_add(idx);
 
         dev_set_drvdata(dev, hwif);
 
diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c
index c2e29571b007..521edd41b572 100644
--- a/drivers/ide/mips/swarm.c
+++ b/drivers/ide/mips/swarm.c
@@ -71,6 +71,7 @@ static int __devinit swarm_ide_probe(struct device *dev)
         u8 __iomem *base;
         phys_t offset, size;
         int i;
+        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
 
         if (!SIBYTE_HAVE_IDE)
                 return -ENODEV;
@@ -119,18 +120,15 @@ static int __devinit swarm_ide_probe(struct device *dev)
         hwif->noprobe = 0;
 
         for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
-                hwif->hw.io_ports[i] =
+                hwif->io_ports[i] =
                                 (unsigned long)(base + ((0x1f0 + i) << 5));
-        hwif->hw.io_ports[IDE_CONTROL_OFFSET] =
+        hwif->io_ports[IDE_CONTROL_OFFSET] =
                                 (unsigned long)(base + (0x3f6 << 5));
-        hwif->hw.irq = K_INT_GB_IDE;
+        hwif->irq = K_INT_GB_IDE;
 
-        memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
-        hwif->irq = hwif->hw.irq;
+        idx[0] = hwif->index;
 
-        probe_hwif_init(hwif);
-
-        ide_proc_register_port(hwif);
+        ide_device_add(idx);
 
         dev_set_drvdata(dev, hwif);
 
diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c
index b3dc12a70d51..19ec421f7b9f 100644
--- a/drivers/ide/pci/aec62xx.c
+++ b/drivers/ide/pci/aec62xx.c
@@ -1,5 +1,5 @@
 /*
- * linux/drivers/ide/pci/aec62xx.c              Version 0.26    Sep 1, 2007
+ * linux/drivers/ide/pci/aec62xx.c              Version 0.27    Sep 16, 2007
  *
  * Copyright (C) 1999-2002      Andre Hedrick <andre@linux-ide.org>
  * Copyright (C) 2007           MontaVista Software, Inc. <source@mvista.com>
@@ -141,19 +141,6 @@ static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
         drive->hwif->set_dma_mode(drive, pio + XFER_PIO_0);
 }
 
-static void aec62xx_dma_lost_irq (ide_drive_t *drive)
-{
-        switch (HWIF(drive)->pci_dev->device) {
-                case PCI_DEVICE_ID_ARTOP_ATP860:
-                case PCI_DEVICE_ID_ARTOP_ATP860R:
-                case PCI_DEVICE_ID_ARTOP_ATP865:
-                case PCI_DEVICE_ID_ARTOP_ATP865R:
-                        printk(" AEC62XX time out ");
-                default:
-                        break;
-        }
-}
-
 static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name)
 {
         int bus_speed = system_bus_clock();
@@ -195,8 +182,6 @@ static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
         if (hwif->dma_base == 0)
                 return;
 
-        hwif->dma_lost_irq      = &aec62xx_dma_lost_irq;
-
         if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
                 return;
 
@@ -209,7 +194,7 @@ static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
         }
 }
 
-static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
+static const struct ide_port_info aec62xx_chipsets[] __devinitdata = {
         {       /* 0 */
                 .name           = "AEC6210",
                 .init_chipset   = init_chipset_aec62xx,
@@ -268,12 +253,12 @@ static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
  *      finds a device matching our IDE device tables.
  *
  *      NOTE: since we're going to modify the 'name' field for AEC-6[26]80[R]
- *      chips, pass a local copy of 'struct pci_device_id' down the call chain.
+ *      chips, pass a local copy of 'struct ide_port_info' down the call chain.
  */
- 
+
 static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
-        ide_pci_device_t d;
+        struct ide_port_info d;
         u8 idx = id->driver_data;
 
         d = aec62xx_chipsets[idx];
diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c
index 8ee2b48d105d..a607dd31a64c 100644
--- a/drivers/ide/pci/alim15x3.c
+++ b/drivers/ide/pci/alim15x3.c
@@ -1,5 +1,5 @@
 /*
- * linux/drivers/ide/pci/alim15x3.c             Version 0.27    Aug 27 2007
+ * linux/drivers/ide/pci/alim15x3.c             Version 0.29    Sep 16 2007
  *
  *  Copyright (C) 1998-2000 Michel Aubry, Maintainer
  *  Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer
@@ -492,6 +492,13 @@ static unsigned int __devinit init_chipset_ali15x3 (struct pci_dev *dev, const c
                  * clear bit 7
                  */
                 pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F);
+                /*
+                 * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010
+                 */
+                if (m5229_revision >= 0x20 && isa_dev) {
+                        pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);
+                        chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;
+                }
                 goto out;
         }
 
@@ -537,7 +544,30 @@ static unsigned int __devinit init_chipset_ali15x3 (struct pci_dev *dev, const c
                         pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
                 }
         }
+
 out:
+        /*
+         * CD_ROM DMA on (m5229, 0x53, bit0)
+         *      Enable this bit even if we want to use PIO.
+         * PIO FIFO off (m5229, 0x53, bit1)
+         *      The hardware will use 0x54h and 0x55h to control PIO FIFO.
+         *      (Not on later devices it seems)
+         *
+         *      0x53 changes meaning on later revs - we must no touch
+         *      bit 1 on them.  Need to check if 0x20 is the right break.
+         */
+        if (m5229_revision >= 0x20) {
+                pci_read_config_byte(dev, 0x53, &tmpbyte);
+
+                if (m5229_revision <= 0x20)
+                        tmpbyte = (tmpbyte & (~0x02)) | 0x01;
+                else if (m5229_revision == 0xc7 || m5229_revision == 0xc8)
+                        tmpbyte |= 0x03;
+                else
+                        tmpbyte |= 0x01;
+
+                pci_write_config_byte(dev, 0x53, tmpbyte);
+        }
         pci_dev_put(north);
         pci_dev_put(isa_dev);
         local_irq_restore(flags);
@@ -616,36 +646,8 @@ static u8 __devinit ata66_ali15x3(ide_hwif_t *hwif)
                         if ((tmpbyte & (1 << hwif->channel)) == 0)
                                 cbl = ATA_CBL_PATA80;
                 }
-        } else {
-                /*
-                 * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010
-                 */
-                pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);
-                chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;
         }
 
-        /*
-         * CD_ROM DMA on (m5229, 0x53, bit0)
-         *      Enable this bit even if we want to use PIO
-         * PIO FIFO off (m5229, 0x53, bit1)
-         *      The hardware will use 0x54h and 0x55h to control PIO FIFO
-         *      (Not on later devices it seems)
-         *
-         *      0x53 changes meaning on later revs - we must no touch
-         *      bit 1 on them. Need to check if 0x20 is the right break
-         */
-         
-        pci_read_config_byte(dev, 0x53, &tmpbyte);
-        
-        if(m5229_revision <= 0x20)
-                tmpbyte = (tmpbyte & (~0x02)) | 0x01;
-        else if (m5229_revision == 0xc7 || m5229_revision == 0xc8)
-                tmpbyte |= 0x03;
-        else
-                tmpbyte |= 0x01;
-
-        pci_write_config_byte(dev, 0x53, tmpbyte);
-
         local_irq_restore(flags);
 
         return cbl;
@@ -664,31 +666,9 @@ static void __devinit init_hwif_common_ali15x3 (ide_hwif_t *hwif)
         hwif->set_dma_mode = &ali_set_dma_mode;
         hwif->udma_filter = &ali_udma_filter;
 
-        /* don't use LBA48 DMA on ALi devices before rev 0xC5 */
-        if (m5229_revision <= 0xC4)
-                hwif->host_flags |= IDE_HFLAG_NO_LBA48_DMA;
-
         if (hwif->dma_base == 0)
                 return;
 
-        /*
-         * check in ->init_dma guarantees m5229_revision >= 0x20 here
-         */
-
-        if (m5229_revision == 0x20)
-                hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
-
-        if (m5229_revision <= 0x20)
-                hwif->ultra_mask = 0x00; /* no udma */
-        else if (m5229_revision < 0xC2)
-                hwif->ultra_mask = ATA_UDMA2;
-        else if (m5229_revision == 0xC2 || m5229_revision == 0xC3)
-                hwif->ultra_mask = ATA_UDMA4;
-        else if (m5229_revision == 0xC4)
-                hwif->ultra_mask = ATA_UDMA5;
-        else
-                hwif->ultra_mask = ATA_UDMA6;
-
         hwif->dma_setup = &ali15x3_dma_setup;
 
         if (hwif->cbl != ATA_CBL_PATA40_SHORT)
@@ -766,7 +746,7 @@ static void __devinit init_dma_ali15x3 (ide_hwif_t *hwif, unsigned long dmabase)
         ide_setup_dma(hwif, dmabase, 8);
 }
 
-static ide_pci_device_t ali15x3_chipset __devinitdata = {
+static const struct ide_port_info ali15x3_chipset __devinitdata = {
         .name           = "ALI15X3",
         .init_chipset   = init_chipset_ali15x3,
         .init_hwif      = init_hwif_ali15x3,
@@ -792,15 +772,34 @@ static int __devinit alim15x3_init_one(struct pci_dev *dev, const struct pci_dev
                 { },
         };
 
-        ide_pci_device_t *d = &ali15x3_chipset;
+        struct ide_port_info d = ali15x3_chipset;
+        u8 rev = dev->revision;
 
         if (pci_dev_present(ati_rs100))
                 printk(KERN_WARNING "alim15x3: ATI Radeon IGP Northbridge is not yet fully tested.\n");
 
+        /* don't use LBA48 DMA on ALi devices before rev 0xC5 */
+        if (rev <= 0xC4)
+                d.host_flags |= IDE_HFLAG_NO_LBA48_DMA;
+
+        if (rev >= 0x20) {
+                if (rev == 0x20)
+                        d.host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
+
+                if (rev < 0xC2)
+                        d.udma_mask = ATA_UDMA2;
+                else if (rev == 0xC2 || rev == 0xC3)
+                        d.udma_mask = ATA_UDMA4;
+                else if (rev == 0xC4)
+                        d.udma_mask = ATA_UDMA5;
+                else
+                        d.udma_mask = ATA_UDMA6;
+        }
+
 #if defined(CONFIG_SPARC64)
-        d->init_hwif = init_hwif_common_ali15x3;
+        d.init_hwif = init_hwif_common_ali15x3;
 #endif /* CONFIG_SPARC64 */
-        return ide_setup_pci_device(dev, d);
+        return ide_setup_pci_device(dev, &d);
 }
 
 
diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c
index 7cafefbf6c1b..8d4125ec252c 100644
--- a/drivers/ide/pci/amd74xx.c
+++ b/drivers/ide/pci/amd74xx.c
@@ -77,7 +77,7 @@ static struct amd_ide_chip {
 };
 
 static struct amd_ide_chip *amd_config;
-static ide_pci_device_t *amd_chipset;
+static const struct ide_port_info *amd_chipset;
 static unsigned int amd_80w;
 static unsigned int amd_clock;
 
@@ -242,19 +242,12 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, const ch
 
 static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)
 {
-        int i;
-
         if (hwif->irq == 0) /* 0 is bogus but will do for now */
                 hwif->irq = pci_get_legacy_ide_irq(hwif->pci_dev, hwif->channel);
 
         hwif->set_pio_mode = &amd_set_pio_mode;
         hwif->set_dma_mode = &amd_set_drive;
 
-        for (i = 0; i < 2; i++) {
-                hwif->drives[i].io_32bit = 1;
-                hwif->drives[i].unmask = 1;
-        }
-
         if (!hwif->dma_base)
                 return;
 
@@ -270,16 +263,21 @@ static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)
         }
 }
 
+#define IDE_HFLAGS_AMD \
+        (IDE_HFLAG_PIO_NO_BLACKLIST | \
+         IDE_HFLAG_PIO_NO_DOWNGRADE | \
+         IDE_HFLAG_POST_SET_MODE | \
+         IDE_HFLAG_IO_32BIT | \
+         IDE_HFLAG_UNMASK_IRQS | \
+         IDE_HFLAG_BOOTABLE)
+
 #define DECLARE_AMD_DEV(name_str)                                       \
         {                                                               \
                 .name           = name_str,                             \
                 .init_chipset   = init_chipset_amd74xx,                 \
                 .init_hwif      = init_hwif_amd74xx,                    \
                 .enablebits     = {{0x40,0x02,0x02}, {0x40,0x01,0x01}}, \
-                .host_flags     = IDE_HFLAG_PIO_NO_BLACKLIST |          \
-                                  IDE_HFLAG_PIO_NO_DOWNGRADE |          \
-                                  IDE_HFLAG_POST_SET_MODE |             \
-                                  IDE_HFLAG_BOOTABLE,                   \
+                .host_flags     = IDE_HFLAGS_AMD,                       \
                 .pio_mask       = ATA_PIO5,                             \
                 .swdma_mask     = ATA_SWDMA2,                           \
                 .mwdma_mask     = ATA_MWDMA2,                           \
@@ -291,16 +289,13 @@ static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)
                 .init_chipset   = init_chipset_amd74xx,                 \
                 .init_hwif      = init_hwif_amd74xx,                    \
                 .enablebits     = {{0x50,0x02,0x02}, {0x50,0x01,0x01}}, \
-                .host_flags     = IDE_HFLAG_PIO_NO_BLACKLIST |          \
-                                  IDE_HFLAG_PIO_NO_DOWNGRADE |          \
-                                  IDE_HFLAG_POST_SET_MODE |             \
-                                  IDE_HFLAG_BOOTABLE,                   \
+                .host_flags     = IDE_HFLAGS_AMD,                       \
                 .pio_mask       = ATA_PIO5,                             \
                 .swdma_mask     = ATA_SWDMA2,                           \
                 .mwdma_mask     = ATA_MWDMA2,                           \
         }
 
-static ide_pci_device_t amd74xx_chipsets[] __devinitdata = {
+static const struct ide_port_info amd74xx_chipsets[] __devinitdata = {
         /*  0 */ DECLARE_AMD_DEV("AMD7401"),
         /*  1 */ DECLARE_AMD_DEV("AMD7409"),
         /*  2 */ DECLARE_AMD_DEV("AMD7411"),
diff --git a/drivers/ide/pci/atiixp.c b/drivers/ide/pci/atiixp.c
index 307843053078..ef8e0164ef7a 100644
--- a/drivers/ide/pci/atiixp.c
+++ b/drivers/ide/pci/atiixp.c
@@ -189,8 +189,7 @@ static void __devinit init_hwif_atiixp(ide_hwif_t *hwif)
         hwif->dma_host_off = &atiixp_dma_host_off;
 }
 
-
-static ide_pci_device_t atiixp_pci_info[] __devinitdata = {
+static const struct ide_port_info atiixp_pci_info[] __devinitdata = {
         {       /* 0 */
                 .name           = "ATIIXP",
                 .init_hwif      = init_hwif_atiixp,
diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c
index f369645e4d16..4aa48104e0c1 100644
--- a/drivers/ide/pci/cmd640.c
+++ b/drivers/ide/pci/cmd640.c
@@ -185,6 +185,8 @@ static u8 recovery_counts[4] = {16, 16, 16, 16}; /* Recovery count (encoded) */
 
 #endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
 
+static DEFINE_SPINLOCK(cmd640_lock);
+
 /*
  * These are initialized to point at the devices we control
  */
@@ -258,12 +260,12 @@ static u8 get_cmd640_reg_vlb (u16 reg)
 
 static u8 get_cmd640_reg(u16 reg)
 {
-        u8 b;
         unsigned long flags;
+        u8 b;
 
-        spin_lock_irqsave(&ide_lock, flags);
+        spin_lock_irqsave(&cmd640_lock, flags);
         b = __get_cmd640_reg(reg);
-        spin_unlock_irqrestore(&ide_lock, flags);
+        spin_unlock_irqrestore(&cmd640_lock, flags);
         return b;
 }
 
@@ -271,9 +273,9 @@ static void put_cmd640_reg(u16 reg, u8 val)
 {
         unsigned long flags;
 
-        spin_lock_irqsave(&ide_lock, flags);
+        spin_lock_irqsave(&cmd640_lock, flags);
         __put_cmd640_reg(reg,val);
-        spin_unlock_irqrestore(&ide_lock, flags);
+        spin_unlock_irqrestore(&cmd640_lock, flags);
 }
 
 static int __init match_pci_cmd640_device (void)
@@ -351,7 +353,7 @@ static int __init secondary_port_responding (void)
 {
         unsigned long flags;
 
-        spin_lock_irqsave(&ide_lock, flags);
+        spin_lock_irqsave(&cmd640_lock, flags);
 
         outb_p(0x0a, 0x170 + IDE_SELECT_OFFSET);        /* select drive0 */
         udelay(100);
@@ -359,11 +361,11 @@ static int __init secondary_port_responding (void)
                 outb_p(0x1a, 0x170 + IDE_SELECT_OFFSET); /* select drive1 */
                 udelay(100);
                 if ((inb_p(0x170 + IDE_SELECT_OFFSET) & 0x1f) != 0x1a) {
-                        spin_unlock_irqrestore(&ide_lock, flags);
+                        spin_unlock_irqrestore(&cmd640_lock, flags);
                         return 0; /* nothing responded */
                 }
         }
-        spin_unlock_irqrestore(&ide_lock, flags);
+        spin_unlock_irqrestore(&cmd640_lock, flags);
         return 1; /* success */
 }
 
@@ -440,11 +442,11 @@ static void __init setup_device_ptrs (void)
 static void set_prefetch_mode (unsigned int index, int mode)
 {
         ide_drive_t *drive = cmd_drives[index];
+        unsigned long flags;
         int reg = prefetch_regs[index];
         u8 b;
-        unsigned long flags;
 
-        spin_lock_irqsave(&ide_lock, flags);
+        spin_lock_irqsave(&cmd640_lock, flags);
         b = __get_cmd640_reg(reg);
         if (mode) {     /* want prefetch on? */
 #if CMD640_PREFETCH_MASKS
@@ -460,7 +462,7 @@ static void set_prefetch_mode (unsigned int index, int mode)
                 b |= prefetch_masks[index];     /* disable prefetch */
         }
         __put_cmd640_reg(reg, b);
-        spin_unlock_irqrestore(&ide_lock, flags);
+        spin_unlock_irqrestore(&cmd640_lock, flags);
 }
 
 /*
@@ -561,7 +563,7 @@ static void program_drive_counts (unsigned int index)
         /*
          * Now that everything is ready, program the new timings
          */
-        spin_lock_irqsave(&ide_lock, flags);
+        spin_lock_irqsave(&cmd640_lock, flags);
         /*
          * Program the address_setup clocks into ARTTIM reg,
          * and then the active/recovery counts into the DRWTIM reg
@@ -570,7 +572,7 @@ static void program_drive_counts (unsigned int index)
         setup_count |= __get_cmd640_reg(arttim_regs[index]) & 0x3f;
         __put_cmd640_reg(arttim_regs[index], setup_count);
         __put_cmd640_reg(drwtim_regs[index], pack_nibbles(active_count, recovery_count));
-        spin_unlock_irqrestore(&ide_lock, flags);
+        spin_unlock_irqrestore(&cmd640_lock, flags);
 }
 
 /*
@@ -670,20 +672,20 @@ static void cmd640_set_pio_mode(ide_drive_t *drive, const u8 pio)
 
 static int pci_conf1(void)
 {
-        u32 tmp;
         unsigned long flags;
+        u32 tmp;
 
-        spin_lock_irqsave(&ide_lock, flags);
+        spin_lock_irqsave(&cmd640_lock, flags);
         outb(0x01, 0xCFB);
         tmp = inl(0xCF8);
         outl(0x80000000, 0xCF8);
         if (inl(0xCF8) == 0x80000000) {
                 outl(tmp, 0xCF8);
-                spin_unlock_irqrestore(&ide_lock, flags);
+                spin_unlock_irqrestore(&cmd640_lock, flags);
                 return 1;
         }
         outl(tmp, 0xCF8);
-        spin_unlock_irqrestore(&ide_lock, flags);
+        spin_unlock_irqrestore(&cmd640_lock, flags);
         return 0;
 }
 
@@ -691,15 +693,15 @@ static int pci_conf2(void)
 {
         unsigned long flags;
 
-        spin_lock_irqsave(&ide_lock, flags);
+        spin_lock_irqsave(&cmd640_lock, flags);
         outb(0x00, 0xCFB);
         outb(0x00, 0xCF8);
         outb(0x00, 0xCFA);
         if (inb(0xCF8) == 0x00 && inb(0xCF8) == 0x00) {
-                spin_unlock_irqrestore(&ide_lock, flags);
+                spin_unlock_irqrestore(&cmd640_lock, flags);
                 return 1;
         }
-        spin_unlock_irqrestore(&ide_lock, flags);
+        spin_unlock_irqrestore(&cmd640_lock, flags);
         return 0;
 }
 
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index adee2ef6fd71..ea0143ef5fe5 100644
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -535,7 +535,6 @@ static void __devinit init_hwif_cmd64x(ide_hwif_t *hwif)
                 hwif->ide_dma_test_irq  = &cmd648_ide_dma_test_irq;
                 break;
         case PCI_DEVICE_ID_CMD_646:
-                hwif->chipset = ide_cmd646;
                 if (dev->revision == 0x01) {
                         hwif->ide_dma_end = &cmd646_1_ide_dma_end;
                         break;
@@ -549,7 +548,7 @@ static void __devinit init_hwif_cmd64x(ide_hwif_t *hwif)
         }
 }
 
-static ide_pci_device_t cmd64x_chipsets[] __devinitdata = {
+static const struct ide_port_info cmd64x_chipsets[] __devinitdata = {
         {       /* 0 */
                 .name           = "CMD643",
                 .init_chipset   = init_chipset_cmd64x,
@@ -573,6 +572,7 @@ static ide_pci_device_t cmd64x_chipsets[] __devinitdata = {
                 .init_chipset   = init_chipset_cmd64x,
                 .init_hwif      = init_hwif_cmd64x,
                 .enablebits     = {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
+                .chipset        = ide_cmd646,
                 .host_flags     = IDE_HFLAG_ABUSE_PREFETCH | IDE_HFLAG_BOOTABLE,
                 .pio_mask       = ATA_PIO5,
                 .mwdma_mask     = ATA_MWDMA2,
@@ -591,7 +591,7 @@ static ide_pci_device_t cmd64x_chipsets[] __devinitdata = {
 
 static int __devinit cmd64x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
-        ide_pci_device_t d;
+        struct ide_port_info d;
         u8 idx = id->driver_data;
 
         d = cmd64x_chipsets[idx];
diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c
index aa98e817d385..0466462fd21b 100644
--- a/drivers/ide/pci/cs5520.c
+++ b/drivers/ide/pci/cs5520.c
@@ -141,7 +141,7 @@ static void __devinit init_hwif_cs5520(ide_hwif_t *hwif)
                 .pio_mask       = ATA_PIO4,                     \
         }
 
-static ide_pci_device_t cyrix_chipsets[] __devinitdata = {
+static const struct ide_port_info cyrix_chipsets[] __devinitdata = {
         /* 0 */ DECLARE_CS_DEV("Cyrix 5510"),
         /* 1 */ DECLARE_CS_DEV("Cyrix 5520")
 };
@@ -154,9 +154,8 @@ static ide_pci_device_t cyrix_chipsets[] __devinitdata = {
  
 static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
-        ide_hwif_t *hwif = NULL, *mate = NULL;
-        ata_index_t index;
-        ide_pci_device_t *d = &cyrix_chipsets[id->driver_data];
+        const struct ide_port_info *d = &cyrix_chipsets[id->driver_data];
+        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
 
         ide_setup_pci_noise(dev, d);
 
@@ -172,29 +171,14 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic
                 return -ENODEV;
         }
 
-        index.all = 0xf0f0;
-
         /*
          *      Now the chipset is configured we can let the core
          *      do all the device setup for us
          */
 
-        ide_pci_setup_ports(dev, d, 14, &index);
-
-        if ((index.b.low & 0xf0) != 0xf0)
-                hwif = &ide_hwifs[index.b.low];
-        if ((index.b.high & 0xf0) != 0xf0)
-                mate = &ide_hwifs[index.b.high];
-
-        if (hwif)
-                probe_hwif_init(hwif);
-        if (mate)
-                probe_hwif_init(mate);
+        ide_pci_setup_ports(dev, d, 14, &idx[0]);
 
-        if (hwif)
-                ide_proc_register_port(hwif);
-        if (mate)
-                ide_proc_register_port(mate);
+        ide_device_add(idx);
 
         return 0;
 }
diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c
index ba0c6eba024b..599408952bd4 100644
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -1,5 +1,5 @@
 /*
- * linux/drivers/ide/pci/cs5530.c               Version 0.76    Aug 3 2007
+ * linux/drivers/ide/pci/cs5530.c               Version 0.77    Sep 24 2007
  *
  * Copyright (C) 2000                   Andre Hedrick <andre@linux-ide.org>
  * Copyright (C) 2000                   Mark Lord <mlord@pobox.com>
@@ -146,7 +146,6 @@ static void cs5530_set_dma_mode(ide_drive_t *drive, const u8 mode)
 static unsigned int __devinit init_chipset_cs5530 (struct pci_dev *dev, const char *name)
 {
         struct pci_dev *master_0 = NULL, *cs5530_0 = NULL;
-        unsigned long flags;
 
         if (pci_resource_start(dev, 4) == 0)
                 return -EFAULT;
@@ -171,9 +170,6 @@ static unsigned int __devinit init_chipset_cs5530 (struct pci_dev *dev, const ch
                 goto out;
         }
 
-        spin_lock_irqsave(&ide_lock, flags);
-                /* all CPUs (there should only be one CPU with this chipset) */
-
         /*
          * Enable BusMaster and MemoryWriteAndInvalidate for the cs5530:
          * -->  OR 0x14 into 16-bit PCI COMMAND reg of function 0 of the cs5530
@@ -224,8 +220,6 @@ static unsigned int __devinit init_chipset_cs5530 (struct pci_dev *dev, const ch
         pci_write_config_byte(master_0, 0x42, 0x00);
         pci_write_config_byte(master_0, 0x43, 0xc1);
 
-        spin_unlock_irqrestore(&ide_lock, flags);
-
 out:
         pci_dev_put(master_0);
         pci_dev_put(cs5530_0);
@@ -261,7 +255,7 @@ static void __devinit init_hwif_cs5530 (ide_hwif_t *hwif)
         hwif->udma_filter = cs5530_udma_filter;
 }
 
-static ide_pci_device_t cs5530_chipset __devinitdata = {
+static const struct ide_port_info cs5530_chipset __devinitdata = {
         .name           = "CS5530",
         .init_chipset   = init_chipset_cs5530,
         .init_hwif      = init_hwif_cs5530,
diff --git a/drivers/ide/pci/cs5535.c b/drivers/ide/pci/cs5535.c
index 5ac82ffa5c09..9094916e3780 100644
--- a/drivers/ide/pci/cs5535.c
+++ b/drivers/ide/pci/cs5535.c
@@ -186,7 +186,7 @@ static void __devinit init_hwif_cs5535(ide_hwif_t *hwif)
         hwif->cbl = cs5535_cable_detect(hwif->pci_dev);
 }
 
-static ide_pci_device_t cs5535_chipset __devinitdata = {
+static const struct ide_port_info cs5535_chipset __devinitdata = {
         .name           = "CS5535",
         .init_hwif      = init_hwif_cs5535,
         .host_flags     = IDE_HFLAG_SINGLE | IDE_HFLAG_POST_SET_MODE |
diff --git a/drivers/ide/pci/cy82c693.c b/drivers/ide/pci/cy82c693.c
index efc20bd97fd5..3ef4fc10fe2c 100644
--- a/drivers/ide/pci/cy82c693.c
+++ b/drivers/ide/pci/cy82c693.c
@@ -428,7 +428,6 @@ static unsigned int __devinit init_chipset_cy82c693(struct pci_dev *dev, const c
  */
 static void __devinit init_hwif_cy82c693(ide_hwif_t *hwif)
 {
-        hwif->chipset = ide_cy82c693;
         hwif->set_pio_mode = &cy82c693_set_pio_mode;
 
         if (hwif->dma_base == 0)
@@ -449,11 +448,12 @@ static void __devinit init_iops_cy82c693(ide_hwif_t *hwif)
         }
 }
 
-static ide_pci_device_t cy82c693_chipset __devinitdata = {
+static const struct ide_port_info cy82c693_chipset __devinitdata = {
         .name           = "CY82C693",
         .init_chipset   = init_chipset_cy82c693,
         .init_iops      = init_iops_cy82c693,
         .init_hwif      = init_hwif_cy82c693,
+        .chipset        = ide_cy82c693,
         .host_flags     = IDE_HFLAG_SINGLE | IDE_HFLAG_TRUST_BIOS_FOR_DMA |
                           IDE_HFLAG_BOOTABLE,
         .pio_mask       = ATA_PIO4,
diff --git a/drivers/ide/pci/delkin_cb.c b/drivers/ide/pci/delkin_cb.c
index 46f4a888c037..83829081640a 100644
--- a/drivers/ide/pci/delkin_cb.c
+++ b/drivers/ide/pci/delkin_cb.c
@@ -80,7 +80,7 @@ delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id)
         hw.irq = dev->irq;
         hw.chipset = ide_pci;           /* this enables IRQ sharing */
 
-        rc = ide_register_hw_with_fixup(&hw, 0, &hwif, ide_undecoded_slave);
+        rc = ide_register_hw(&hw, &ide_undecoded_slave, 0, &hwif);
         if (rc < 0) {
                 printk(KERN_ERR "delkin_cb: ide_register_hw failed (%d)\n", rc);
                 pci_disable_device(dev);
diff --git a/drivers/ide/pci/generic.c b/drivers/ide/pci/generic.c
index 51165832e7f2..f44d70852c3c 100644
--- a/drivers/ide/pci/generic.c
+++ b/drivers/ide/pci/generic.c
@@ -54,37 +54,24 @@ __setup("all-generic-ide", ide_generic_all_on);
 module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
 MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
 
-static void __devinit init_hwif_generic (ide_hwif_t *hwif)
-{
-        switch(hwif->pci_dev->device) {
-                case PCI_DEVICE_ID_UMC_UM8673F:
-                case PCI_DEVICE_ID_UMC_UM8886A:
-                case PCI_DEVICE_ID_UMC_UM8886BF:
-                        hwif->irq = hwif->channel ? 15 : 14;
-                        break;
-                default:
-                        break;
-        }
-}
+#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)
 
-#define DECLARE_GENERIC_PCI_DEV(name_str, dma_setting) \
+#define DECLARE_GENERIC_PCI_DEV(name_str, extra_flags) \
         { \
                 .name           = name_str, \
-                .init_hwif      = init_hwif_generic, \
                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA | \
-                                  dma_setting | \
+                                  extra_flags | \
                                   IDE_HFLAG_BOOTABLE, \
                 .swdma_mask     = ATA_SWDMA2, \
                 .mwdma_mask     = ATA_MWDMA2, \
                 .udma_mask      = ATA_UDMA6, \
         }
 
-static ide_pci_device_t generic_chipsets[] __devinitdata = {
+static const struct ide_port_info generic_chipsets[] __devinitdata = {
         /*  0 */ DECLARE_GENERIC_PCI_DEV("Unknown",     0),
 
         {       /* 1 */
                 .name           = "NS87410",
-                .init_hwif      = init_hwif_generic,
                 .enablebits     = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
                                   IDE_HFLAG_BOOTABLE,
@@ -95,16 +82,15 @@ static ide_pci_device_t generic_chipsets[] __devinitdata = {
 
         /*  2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI",     0),
         /*  3 */ DECLARE_GENERIC_PCI_DEV("HT6565",      0),
-        /*  4 */ DECLARE_GENERIC_PCI_DEV("UM8673F",     IDE_HFLAG_NO_DMA),
-        /*  5 */ DECLARE_GENERIC_PCI_DEV("UM8886A",     IDE_HFLAG_NO_DMA),
-        /*  6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF",    IDE_HFLAG_NO_DMA),
+        /*  4 */ DECLARE_GENERIC_PCI_DEV("UM8673F",     IDE_HFLAGS_UMC),
+        /*  5 */ DECLARE_GENERIC_PCI_DEV("UM8886A",     IDE_HFLAGS_UMC),
+        /*  6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF",    IDE_HFLAGS_UMC),
         /*  7 */ DECLARE_GENERIC_PCI_DEV("HINT_IDE",    0),
         /*  8 */ DECLARE_GENERIC_PCI_DEV("VIA_IDE",     IDE_HFLAG_NO_AUTODMA),
         /*  9 */ DECLARE_GENERIC_PCI_DEV("OPTI621V",    IDE_HFLAG_NO_AUTODMA),
 
         {       /* 10 */
                 .name           = "VIA8237SATA",
-                .init_hwif      = init_hwif_generic,
                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
                                   IDE_HFLAG_OFF_BOARD,
                 .swdma_mask     = ATA_SWDMA2,
@@ -118,7 +104,6 @@ static ide_pci_device_t generic_chipsets[] __devinitdata = {
 
         {       /* 14 */
                 .name           = "Revolution",
-                .init_hwif      = init_hwif_generic,
                 .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
                                   IDE_HFLAG_OFF_BOARD,
                 .swdma_mask     = ATA_SWDMA2,
@@ -138,7 +123,7 @@ static ide_pci_device_t generic_chipsets[] __devinitdata = {
  
 static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
-        ide_pci_device_t *d = &generic_chipsets[id->driver_data];
+        const struct ide_port_info *d = &generic_chipsets[id->driver_data];
         int ret = -ENODEV;
 
         /* Don't use the generic entry unless instructed to do so */
diff --git a/drivers/ide/pci/hpt34x.c b/drivers/ide/pci/hpt34x.c
index 67af1a7dde30..ae6307fae4f9 100644
--- a/drivers/ide/pci/hpt34x.c
+++ b/drivers/ide/pci/hpt34x.c
@@ -129,7 +129,7 @@ static void __devinit init_hwif_hpt34x(ide_hwif_t *hwif)
         hwif->set_dma_mode = &hpt34x_set_mode;
 }
 
-static ide_pci_device_t hpt34x_chipsets[] __devinitdata = {
+static const struct ide_port_info hpt34x_chipsets[] __devinitdata = {
         { /* 0 */
                 .name           = "HPT343",
                 .init_chipset   = init_chipset_hpt34x,
@@ -158,7 +158,7 @@ static ide_pci_device_t hpt34x_chipsets[] __devinitdata = {
 
 static int __devinit hpt34x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
-        ide_pci_device_t *d;
+        const struct ide_port_info *d;
         u16 pcicmd = 0;
 
         pci_read_config_word(dev, PCI_COMMAND, &pcicmd);
diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c
index 18f5b7ddaee6..612b795241bf 100644
--- a/drivers/ide/pci/hpt366.c
+++ b/drivers/ide/pci/hpt366.c
@@ -1425,7 +1425,7 @@ static int __devinit hpt36x_init(struct pci_dev *dev, struct pci_dev *dev2)
         return 0;
 }
 
-static ide_pci_device_t hpt366_chipsets[] __devinitdata = {
+static const struct ide_port_info hpt366_chipsets[] __devinitdata = {
         {       /* 0 */
                 .name           = "HPT36x",
                 .init_chipset   = init_chipset_hpt366,
@@ -1510,7 +1510,7 @@ static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_devic
 {
         struct hpt_info *info = NULL;
         struct pci_dev *dev2 = NULL;
-        ide_pci_device_t d;
+        struct ide_port_info d;
         u8 idx = id->driver_data;
         u8 rev = dev->revision;
 
diff --git a/drivers/ide/pci/it8213.c b/drivers/ide/pci/it8213.c
index dfbe605120cb..90b52ed37bfc 100644
--- a/drivers/ide/pci/it8213.c
+++ b/drivers/ide/pci/it8213.c
@@ -193,7 +193,7 @@ static void __devinit init_hwif_it8213(ide_hwif_t *hwif)
                 .udma_mask      = ATA_UDMA6,            \
         }
 
-static ide_pci_device_t it8213_chipsets[] __devinitdata = {
+static const struct ide_port_info it8213_chipsets[] __devinitdata = {
         /* 0 */ DECLARE_ITE_DEV("IT8213"),
 };
 
diff --git a/drivers/ide/pci/it821x.c b/drivers/ide/pci/it821x.c
index 08e820e89ae2..5c9975435319 100644
--- a/drivers/ide/pci/it821x.c
+++ b/drivers/ide/pci/it821x.c
@@ -638,7 +638,7 @@ static unsigned int __devinit init_chipset_it821x(struct pci_dev *dev, const cha
                 .pio_mask       = ATA_PIO4,             \
         }
 
-static ide_pci_device_t it821x_chipsets[] __devinitdata = {
+static const struct ide_port_info it821x_chipsets[] __devinitdata = {
         /* 0 */ DECLARE_ITE_DEV("IT8212"),
 };
 
diff --git a/drivers/ide/pci/jmicron.c b/drivers/ide/pci/jmicron.c
index 2eeff670d9a6..bdf64d997708 100644
--- a/drivers/ide/pci/jmicron.c
+++ b/drivers/ide/pci/jmicron.c
@@ -118,7 +118,7 @@ static void __devinit init_hwif_jmicron(ide_hwif_t *hwif)
                 hwif->cbl = ata66_jmicron(hwif);
 }
 
-static ide_pci_device_t jmicron_chipset __devinitdata = {
+static const struct ide_port_info jmicron_chipset __devinitdata = {
         .name           = "JMB",
         .init_hwif      = init_hwif_jmicron,
         .host_flags     = IDE_HFLAG_BOOTABLE,
diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c
index d21b58923829..d4df4642dbb5 100644
--- a/drivers/ide/pci/ns87415.c
+++ b/drivers/ide/pci/ns87415.c
@@ -260,7 +260,7 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif)
         hwif->ide_dma_end = &ns87415_ide_dma_end;
 }
 
-static ide_pci_device_t ns87415_chipset __devinitdata = {
+static const struct ide_port_info ns87415_chipset __devinitdata = {
         .name           = "NS87415",
 #ifdef CONFIG_SUPERIO
         .init_iops      = init_iops_ns87415,
diff --git a/drivers/ide/pci/opti621.c b/drivers/ide/pci/opti621.c
index 3573ffeaaa34..8953d9c3926f 100644
--- a/drivers/ide/pci/opti621.c
+++ b/drivers/ide/pci/opti621.c
@@ -1,5 +1,5 @@
 /*
- *  linux/drivers/ide/pci/opti621.c             Version 0.8     Aug 27, 2007
+ *  linux/drivers/ide/pci/opti621.c             Version 0.9     Sep 24, 2007
  *
  *  Copyright (C) 1996-1998  Linus Torvalds & authors (see below)
  */
@@ -133,6 +133,8 @@ static int reg_base;
 #define PIO_NOT_EXIST 254
 #define PIO_DONT_KNOW 255
 
+static DEFINE_SPINLOCK(opti621_lock);
+
 /* there are stored pio numbers from other calls of opti621_set_pio_mode */
 static void compute_pios(ide_drive_t *drive, const u8 pio)
 /* Store values into drive->drive_data
@@ -278,7 +280,7 @@ static void opti621_set_pio_mode(ide_drive_t *drive, const u8 pio)
                 second.recovery_time, drdy);
 #endif
 
-        spin_lock_irqsave(&ide_lock, flags);
+        spin_lock_irqsave(&opti621_lock, flags);
 
         reg_base = hwif->io_ports[IDE_DATA_OFFSET];
 
@@ -317,7 +319,7 @@ static void opti621_set_pio_mode(ide_drive_t *drive, const u8 pio)
         /*  and read prefetch for both drives */
         write_reg(misc, MISC_REG);
 
-        spin_unlock_irqrestore(&ide_lock, flags);
+        spin_unlock_irqrestore(&opti621_lock, flags);
 }
 
 /*
@@ -331,7 +333,7 @@ static void __devinit init_hwif_opti621 (ide_hwif_t *hwif)
         hwif->set_pio_mode = &opti621_set_pio_mode;
 }
 
-static ide_pci_device_t opti621_chipsets[] __devinitdata = {
+static const struct ide_port_info opti621_chipsets[] __devinitdata = {
         {       /* 0 */
                 .name           = "OPTI621",
                 .init_hwif      = init_hwif_opti621,
diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c
index d1e7823454f3..4234efeba606 100644
--- a/drivers/ide/pci/pdc202xx_new.c
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -513,7 +513,7 @@ static struct pci_dev * __devinit pdc20270_get_dev2(struct pci_dev *dev)
                 .udma_mask      = udma, \
         }
 
-static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
+static const struct ide_port_info pdcnew_chipsets[] __devinitdata = {
         /* 0 */ DECLARE_PDCNEW_DEV("PDC20268", ATA_UDMA5),
         /* 1 */ DECLARE_PDCNEW_DEV("PDC20269", ATA_UDMA6),
         /* 2 */ DECLARE_PDCNEW_DEV("PDC20270", ATA_UDMA5),
@@ -534,7 +534,7 @@ static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
  
 static int __devinit pdc202new_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
-        ide_pci_device_t *d;
+        const struct ide_port_info *d;
         struct pci_dev *bridge = dev->bus->self;
         u8 idx = id->driver_data;
 
diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c
index 29306121dc4a..e09742e2ba59 100644
--- a/drivers/ide/pci/pdc202xx_old.c
+++ b/drivers/ide/pci/pdc202xx_old.c
@@ -302,13 +302,6 @@ static unsigned int __devinit init_chipset_pdc202xx(struct pci_dev *dev,
 
 static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif)
 {
-        struct pci_dev *dev = hwif->pci_dev;
-
-        /* PDC20265 has problems with large LBA48 requests */
-        if ((dev->device == PCI_DEVICE_ID_PROMISE_20267) ||
-            (dev->device == PCI_DEVICE_ID_PROMISE_20265))
-                hwif->rqsize = 256;
-
         hwif->set_pio_mode = &pdc202xx_set_pio_mode;
         hwif->set_dma_mode = &pdc202xx_set_mode;
 
@@ -382,7 +375,7 @@ static void __devinit pdc202ata4_fixup_irq(struct pci_dev *dev,
         }
 }
 
-#define DECLARE_PDC2026X_DEV(name_str, udma) \
+#define DECLARE_PDC2026X_DEV(name_str, udma, extra_flags) \
         { \
                 .name           = name_str, \
                 .init_chipset   = init_chipset_pdc202xx, \
@@ -390,13 +383,14 @@ static void __devinit pdc202ata4_fixup_irq(struct pci_dev *dev,
                 .init_dma       = init_dma_pdc202xx, \
                 .extra          = 48, \
                 .host_flags     = IDE_HFLAG_ERROR_STOPS_FIFO | \
+                                  extra_flags | \
                                   IDE_HFLAG_OFF_BOARD, \
                 .pio_mask       = ATA_PIO4, \
                 .mwdma_mask     = ATA_MWDMA2, \
                 .udma_mask      = udma, \
         }
 
-static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
+static const struct ide_port_info pdc202xx_chipsets[] __devinitdata = {
         {       /* 0 */
                 .name           = "PDC20246",
                 .init_chipset   = init_chipset_pdc202xx,
@@ -410,10 +404,10 @@ static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
                 .udma_mask      = ATA_UDMA2,
         },
 
-        /* 1 */ DECLARE_PDC2026X_DEV("PDC20262", ATA_UDMA4),
-        /* 2 */ DECLARE_PDC2026X_DEV("PDC20263", ATA_UDMA4),
-        /* 3 */ DECLARE_PDC2026X_DEV("PDC20265", ATA_UDMA5),
-        /* 4 */ DECLARE_PDC2026X_DEV("PDC20267", ATA_UDMA5),
+        /* 1 */ DECLARE_PDC2026X_DEV("PDC20262", ATA_UDMA4, 0),
+        /* 2 */ DECLARE_PDC2026X_DEV("PDC20263", ATA_UDMA4, 0),
+        /* 3 */ DECLARE_PDC2026X_DEV("PDC20265", ATA_UDMA5, IDE_HFLAG_RQSIZE_256),
+        /* 4 */ DECLARE_PDC2026X_DEV("PDC20267", ATA_UDMA5, IDE_HFLAG_RQSIZE_256),
 };
 
 /**
@@ -427,7 +421,7 @@ static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
  
 static int __devinit pdc202xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
-        ide_pci_device_t *d;
+        const struct ide_port_info *d;
         u8 idx = id->driver_data;
 
         d = &pdc202xx_chipsets[idx];
diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c
index ec0c6e96a213..9329d4a810e5 100644
--- a/drivers/ide/pci/piix.c
+++ b/drivers/ide/pci/piix.c
@@ -396,7 +396,7 @@ static void __devinit init_hwif_ich(ide_hwif_t *hwif)
                 .udma_mask      = udma, \
         }
 
-static ide_pci_device_t piix_pci_info[] __devinitdata = {
+static const struct ide_port_info piix_pci_info[] __devinitdata = {
         /*  0 */ DECLARE_PIIX_DEV("PIIXa",      0x00),  /* no udma */
         /*  1 */ DECLARE_PIIX_DEV("PIIXb",      0x00),  /* no udma */
 
@@ -449,9 +449,7 @@ static ide_pci_device_t piix_pci_info[] __devinitdata = {
  
 static int __devinit piix_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
-        ide_pci_device_t *d = &piix_pci_info[id->driver_data];
-
-        return ide_setup_pci_device(dev, d);
+        return ide_setup_pci_device(dev, &piix_pci_info[id->driver_data]);
 }
 
 /**
diff --git a/drivers/ide/pci/rz1000.c b/drivers/ide/pci/rz1000.c
index dd2583ef1ad7..6b10ae260fa2 100644
--- a/drivers/ide/pci/rz1000.c
+++ b/drivers/ide/pci/rz1000.c
@@ -35,13 +35,13 @@ static void __devinit init_hwif_rz1000 (ide_hwif_t *hwif)
         u16 reg;
         struct pci_dev *dev = hwif->pci_dev;
 
-        hwif->chipset = ide_rz1000;
         if (!pci_read_config_word (dev, 0x40, &reg) &&
             !pci_write_config_word(dev, 0x40, reg & 0xdfff)) {
                 printk(KERN_INFO "%s: disabled chipset read-ahead "
                         "(buggy RZ1000/RZ1001)\n", hwif->name);
         } else {
-                hwif->serialized = 1;
+                if (hwif->mate)
+                        hwif->mate->serialized = hwif->serialized = 1;
                 hwif->drives[0].no_unmask = 1;
                 hwif->drives[1].no_unmask = 1;
                 printk(KERN_INFO "%s: serialized, disabled unmasking "
@@ -49,9 +49,10 @@ static void __devinit init_hwif_rz1000 (ide_hwif_t *hwif)
         }
 }
 
-static ide_pci_device_t rz1000_chipset __devinitdata = {
+static const struct ide_port_info rz1000_chipset __devinitdata = {
         .name           = "RZ100x",
         .init_hwif      = init_hwif_rz1000,
+        .chipset        = ide_rz1000,
         .host_flags     = IDE_HFLAG_NO_DMA | IDE_HFLAG_BOOTABLE,
 };
 
diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index b2423e03bf36..d2c8b5524f28 100644
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -372,7 +372,7 @@ static void __devinit init_hwif_sc1200 (ide_hwif_t *hwif)
         hwif->ide_dma_end   = &sc1200_ide_dma_end;
 }
 
-static ide_pci_device_t sc1200_chipset __devinitdata = {
+static const struct ide_port_info sc1200_chipset __devinitdata = {
         .name           = "SC1200",
         .init_hwif      = init_hwif_sc1200,
         .host_flags     = IDE_HFLAG_SERIALIZE |
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index ae9b50331d2a..ebb7132b9b84 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -538,12 +538,13 @@ static int setup_mmio_scc (struct pci_dev *dev, const char *name)
 /**
  *      init_setup_scc  -       set up an SCC PATA Controller
  *      @dev: PCI device
- *      @d: IDE PCI device
+ *      @d: IDE port info
  *
  *      Perform the initial set up for this device.
  */
 
-static int __devinit init_setup_scc(struct pci_dev *dev, ide_pci_device_t *d)
+static int __devinit init_setup_scc(struct pci_dev *dev,
+                                    const struct ide_port_info *d)
 {
         unsigned long ctl_base;
         unsigned long dma_base;
@@ -702,7 +703,7 @@ static void __devinit init_hwif_scc(ide_hwif_t *hwif)
       .pio_mask         = ATA_PIO4,                     \
   }
 
-static ide_pci_device_t scc_chipsets[] __devinitdata = {
+static const struct ide_port_info scc_chipsets[] __devinitdata = {
         /* 0 */ DECLARE_SCC_DEV("sccIDE"),
 };
 
@@ -717,9 +718,7 @@ static ide_pci_device_t scc_chipsets[] __devinitdata = {
 
 static int __devinit scc_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
-        ide_pci_device_t *d = &scc_chipsets[id->driver_data];
-
-        return init_setup_scc(dev, d);
+        return init_setup_scc(dev, &scc_chipsets[id->driver_data]);
 }
 
 /**
diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c
index a3d880e21d0b..a7280311357b 100644
--- a/drivers/ide/pci/serverworks.c
+++ b/drivers/ide/pci/serverworks.c
@@ -158,13 +158,6 @@ static void svwks_set_dma_mode(ide_drive_t *drive, const u8 speed)
 
         u8 ultra_enable  = 0, ultra_timing = 0, dma_timing = 0;
 
-        /* If we are about to put a disk into UDMA mode we screwed up.
-           Our code assumes we never _ever_ do this on an OSB4 */
-           
-        if(dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4 &&
-                drive->media == ide_disk && speed >= XFER_UDMA_0)
-                        BUG();
-
         pci_read_config_byte(dev, (0x56|hwif->channel), &ultra_timing);
         pci_read_config_byte(dev, 0x54, &ultra_enable);
 
@@ -373,7 +366,7 @@ static void __devinit init_hwif_svwks (ide_hwif_t *hwif)
         }
 }
 
-static ide_pci_device_t serverworks_chipsets[] __devinitdata = {
+static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
         {       /* 0 */
                 .name           = "SvrWks OSB4",
                 .init_chipset   = init_chipset_svwks,
@@ -430,7 +423,7 @@ static ide_pci_device_t serverworks_chipsets[] __devinitdata = {
  
 static int __devinit svwks_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
-        ide_pci_device_t d;
+        struct ide_port_info d;
         u8 idx = id->driver_data;
 
         d = serverworks_chipsets[idx];
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index 5af74ea1d46e..de820aa58cd0 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -614,6 +614,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
         void __iomem *virt_base;
         ide_hwif_t *hwif;
         int h;
+        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
 
         /*
          * Find an empty HWIF; if none available, return -ENOMEM.
@@ -654,10 +655,12 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
         }
 
         if (hwif->io_ports[IDE_DATA_OFFSET] != cmd_base) {
+                hw_regs_t hw;
+
                 /* Initialize the IO registers */
-                sgiioc4_init_hwif_ports(&hwif->hw, cmd_base, ctl, irqport);
-                memcpy(hwif->io_ports, hwif->hw.io_ports,
-                       sizeof (hwif->io_ports));
+                memset(&hw, 0, sizeof(hw));
+                sgiioc4_init_hwif_ports(&hw, cmd_base, ctl, irqport);
+                memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports));
                 hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
         }
 
@@ -679,11 +682,10 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
 
         ide_init_sgiioc4(hwif);
 
-        if (probe_hwif_init(hwif))
-                return -EIO;
+        idx[0] = hwif->index;
 
-        /* Create /proc/ide entries */
-        ide_proc_register_port(hwif);
+        if (ide_device_add(idx))
+                return -EIO;
 
         return 0;
 }
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index 1353afb10a4d..6d99441c605b 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -1,5 +1,5 @@
 /*
- * linux/drivers/ide/pci/siimage.c              Version 1.17    Oct 18 2007
+ * linux/drivers/ide/pci/siimage.c              Version 1.18    Oct 18 2007
  *
  * Copyright (C) 2001-2002      Andre Hedrick <andre@linux-ide.org>
  * Copyright (C) 2003           Red Hat <alan@redhat.com>
@@ -57,8 +57,8 @@
  
 static int pdev_is_sata(struct pci_dev *pdev)
 {
-        switch(pdev->device)
-        {
+#ifdef CONFIG_BLK_DEV_IDE_SATA
+        switch(pdev->device) {
                 case PCI_DEVICE_ID_SII_3112:
                 case PCI_DEVICE_ID_SII_1210SA:
                         return 1;
@@ -66,9 +66,10 @@ static int pdev_is_sata(struct pci_dev *pdev)
                         return 0;
         }
         BUG();
+#endif
         return 0;
 }
- 
+
 /**
  *      is_sata                 -       check if hwif is SATA
  *      @hwif:  interface to check
@@ -136,7 +137,7 @@ static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
  *      SI3112 SATA controller life is a bit simpler.
  */
 
-static u8 sil_udma_filter(ide_drive_t *drive)
+static u8 sil_pata_udma_filter(ide_drive_t *drive)
 {
         ide_hwif_t *hwif = drive->hwif;
         unsigned long base = (unsigned long) hwif->hwif_data;
@@ -147,23 +148,23 @@ static u8 sil_udma_filter(ide_drive_t *drive)
         else
                 pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
 
-        if (is_sata(hwif)) {
-                mask = strstr(drive->id->model, "Maxtor") ? 0x3f : 0x7f;
-                goto out;
-        }
-
         if ((scsc & 0x30) == 0x10)      /* 133 */
-                mask = 0x7f;
+                mask = ATA_UDMA6;
         else if ((scsc & 0x30) == 0x20) /* 2xPCI */
-                mask = 0x7f;
+                mask = ATA_UDMA6;
         else if ((scsc & 0x30) == 0x00) /* 100 */
-                mask = 0x3f;
+                mask = ATA_UDMA5;
         else    /* Disabled ? */
                 BUG();
-out:
+
         return mask;
 }
 
+static u8 sil_sata_udma_filter(ide_drive_t *drive)
+{
+        return strstr(drive->id->model, "Maxtor") ? ATA_UDMA5 : ATA_UDMA6;
+}
+
 /**
  *      sil_set_pio_mode        -       set host controller for PIO mode
  *      @drive: drive
@@ -340,10 +341,11 @@ static int siimage_io_ide_dma_test_irq (ide_drive_t *drive)
 static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive)
 {
         ide_hwif_t *hwif        = HWIF(drive);
-        unsigned long base      = (unsigned long)hwif->hwif_data;
         unsigned long addr      = siimage_selreg(hwif, 0x1);
 
         if (SATA_ERROR_REG) {
+                unsigned long base = (unsigned long)hwif->hwif_data;
+
                 u32 ext_stat = readl((void __iomem *)(base + 0x10));
                 u8 watchdog = 0;
                 if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) {
@@ -376,7 +378,7 @@ static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive)
 }
 
 /**
- *      siimage_busproc         -       bus isolation ioctl
+ *      sil_sata_busproc        -       bus isolation IOCTL
  *      @drive: drive to isolate/restore
  *      @state: bus state to set
  *
@@ -384,8 +386,8 @@ static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive)
  *      SATA controller the work required is quite limited, we 
  *      just have to clean up the statistics
  */
- 
-static int siimage_busproc (ide_drive_t * drive, int state)
+
+static int sil_sata_busproc(ide_drive_t * drive, int state)
 {
         ide_hwif_t *hwif        = HWIF(drive);
         u32 stat_config         = 0;
@@ -417,14 +419,14 @@ static int siimage_busproc (ide_drive_t * drive, int state)
 }
 
 /**
- *      siimage_reset_poll      -       wait for sata reset
+ *      sil_sata_reset_poll     -       wait for SATA reset
  *      @drive: drive we are resetting
  *
  *      Poll the SATA phy and see whether it has come back from the dead
  *      yet.
  */
- 
-static int siimage_reset_poll (ide_drive_t *drive)
+
+static int sil_sata_reset_poll(ide_drive_t *drive)
 {
         if (SATA_STATUS_REG) {
                 ide_hwif_t *hwif        = HWIF(drive);
@@ -436,27 +438,22 @@ static int siimage_reset_poll (ide_drive_t *drive)
                         HWGROUP(drive)->polling = 0;
                         return ide_started;
                 }
-                return 0;
-        } else {
-                return 0;
         }
+
+        return 0;
 }
 
 /**
- *      siimage_pre_reset       -       reset hook
+ *      sil_sata_pre_reset      -       reset hook
  *      @drive: IDE device being reset
  *
  *      For the SATA devices we need to handle recalibration/geometry
  *      differently
  */
- 
-static void siimage_pre_reset (ide_drive_t *drive)
-{
-        if (drive->media != ide_disk)
-                return;
 
-        if (is_sata(HWIF(drive)))
-        {
+static void sil_sata_pre_reset(ide_drive_t *drive)
+{
+        if (drive->media == ide_disk) {
                 drive->special.b.set_geometry = 0;
                 drive->special.b.recalibrate = 0;
         }
@@ -502,7 +499,6 @@ static void siimage_reset (ide_drive_t *drive)
                         drive->failures++;
                 }
         }
-
 }
 
 /**
@@ -758,16 +754,11 @@ static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
                 hwif->sata_misc[SATA_IEN_OFFSET]        = base + 0x148;
         }
 
-        hw.irq                          = hwif->pci_dev->irq;
+        memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports));
 
-        memcpy(&hwif->hw, &hw, sizeof(hw));
-        memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
+        hwif->irq = dev->irq;
 
-        hwif->irq                       = hw.irq;
-
-        base = (unsigned long) addr;
-
-        hwif->dma_base                  = base + (ch ? 0x08 : 0x00);
+        hwif->dma_base = (unsigned long)addr + (ch ? 0x08 : 0x00);
 
         hwif->mmio = 1;
 }
@@ -864,28 +855,31 @@ static u8 __devinit ata66_siimage(ide_hwif_t *hwif)
 
 static void __devinit init_hwif_siimage(ide_hwif_t *hwif)
 {
+        u8 sata = is_sata(hwif);
+
         hwif->resetproc = &siimage_reset;
         hwif->set_pio_mode = &sil_set_pio_mode;
         hwif->set_dma_mode = &sil_set_dma_mode;
-        hwif->reset_poll = &siimage_reset_poll;
-        hwif->pre_reset = &siimage_pre_reset;
-        hwif->udma_filter = &sil_udma_filter;
 
-        if(is_sata(hwif)) {
+        if (sata) {
                 static int first = 1;
 
-                hwif->busproc   = &siimage_busproc;
+                hwif->busproc = &sil_sata_busproc;
+                hwif->reset_poll = &sil_sata_reset_poll;
+                hwif->pre_reset = &sil_sata_pre_reset;
+                hwif->udma_filter = &sil_sata_udma_filter;
 
                 if (first) {
                         printk(KERN_INFO "siimage: For full SATA support you should use the libata sata_sil module.\n");
                         first = 0;
                 }
-        }
+        } else
+                hwif->udma_filter = &sil_pata_udma_filter;
 
         if (hwif->dma_base == 0)
                 return;
 
-        if (is_sata(hwif))
+        if (sata)
                 hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
 
         if (hwif->cbl != ATA_CBL_PATA40_SHORT)
@@ -911,7 +905,7 @@ static void __devinit init_hwif_siimage(ide_hwif_t *hwif)
                 .udma_mask      = ATA_UDMA6,            \
         }
 
-static ide_pci_device_t siimage_chipsets[] __devinitdata = {
+static const struct ide_port_info siimage_chipsets[] __devinitdata = {
         /* 0 */ DECLARE_SII_DEV("SiI680"),
         /* 1 */ DECLARE_SII_DEV("SiI3112 Serial ATA"),
         /* 2 */ DECLARE_SII_DEV("Adaptec AAR-1210SA")
diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c
index c1d280b06391..6b7bb53acefd 100644
--- a/drivers/ide/pci/sis5513.c
+++ b/drivers/ide/pci/sis5513.c
@@ -264,7 +264,7 @@ static void sis_ata133_program_timings(ide_drive_t *drive, const u8 mode)
         if (mode >= XFER_MW_DMA_0) {
                 t1 &= ~0x04;    /* disable UDMA */
                 idx = mode - XFER_MW_DMA_0 + 5;
-        }
+        } else
                 idx = mode - XFER_PIO_0;
         t1 |= ini_time_value[clk][idx] << 12;
         t1 |= act_time_value[clk][idx] << 16;
@@ -579,7 +579,7 @@ static void __devinit init_hwif_sis5513 (ide_hwif_t *hwif)
                 hwif->cbl = ata66_sis5513(hwif);
 }
 
-static ide_pci_device_t sis5513_chipset __devinitdata = {
+static const struct ide_port_info sis5513_chipset __devinitdata = {
         .name           = "SIS5513",
         .init_chipset   = init_chipset_sis5513,
         .init_hwif      = init_hwif_sis5513,
diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c
index 0dce459b1269..147d783f7529 100644
--- a/drivers/ide/pci/sl82c105.c
+++ b/drivers/ide/pci/sl82c105.c
@@ -361,13 +361,6 @@ static void __devinit init_hwif_sl82c105(ide_hwif_t *hwif)
         hwif->selectproc        = &sl82c105_selectproc;
         hwif->resetproc         = &sl82c105_resetproc;
 
-        /*
-         * We support 32-bit I/O on this interface, and
-         * it doesn't have problems with interrupts.
-         */
-        hwif->drives[0].io_32bit = hwif->drives[1].io_32bit = 1;
-        hwif->drives[0].unmask   = hwif->drives[1].unmask   = 1;
-
         if (!hwif->dma_base)
                 return;
 
@@ -394,12 +387,15 @@ static void __devinit init_hwif_sl82c105(ide_hwif_t *hwif)
                 hwif->serialized = hwif->mate->serialized = 1;
 }
 
-static ide_pci_device_t sl82c105_chipset __devinitdata = {
+static const struct ide_port_info sl82c105_chipset __devinitdata = {
         .name           = "W82C105",
         .init_chipset   = init_chipset_sl82c105,
         .init_hwif      = init_hwif_sl82c105,
         .enablebits     = {{0x40,0x01,0x01}, {0x40,0x10,0x10}},
-        .host_flags     = IDE_HFLAG_NO_AUTODMA | IDE_HFLAG_BOOTABLE,
+        .host_flags     = IDE_HFLAG_IO_32BIT |
+                          IDE_HFLAG_UNMASK_IRQS |
+                          IDE_HFLAG_NO_AUTODMA |
+                          IDE_HFLAG_BOOTABLE,
         .pio_mask       = ATA_PIO5,
 };
 
diff --git a/drivers/ide/pci/slc90e66.c b/drivers/ide/pci/slc90e66.c
index 4f22dffdf8ef..eb4445b229ed 100644
--- a/drivers/ide/pci/slc90e66.c
+++ b/drivers/ide/pci/slc90e66.c
@@ -1,5 +1,5 @@
 /*
- *  linux/drivers/ide/pci/slc90e66.c    Version 0.18    Aug 9, 2007
+ *  linux/drivers/ide/pci/slc90e66.c    Version 0.19    Sep 24, 2007
  *
  *  Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org>
  *  Copyright (C) 2006-2007 MontaVista Software, Inc. <source@mvista.com>
@@ -21,6 +21,8 @@
 
 #include <asm/io.h>
 
+static DEFINE_SPINLOCK(slc90e66_lock);
+
 static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio)
 {
         ide_hwif_t *hwif        = HWIF(drive);
@@ -40,7 +42,7 @@ static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio)
                                         { 2, 1 },
                                         { 2, 3 }, };
 
-        spin_lock_irqsave(&ide_lock, flags);
+        spin_lock_irqsave(&slc90e66_lock, flags);
         pci_read_config_word(dev, master_port, &master_data);
 
         if (pio > 1)
@@ -71,7 +73,7 @@ static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio)
         pci_write_config_word(dev, master_port, master_data);
         if (is_slave)
                 pci_write_config_byte(dev, slave_port, slave_data);
-        spin_unlock_irqrestore(&ide_lock, flags);
+        spin_unlock_irqrestore(&slc90e66_lock, flags);
 }
 
 static void slc90e66_set_dma_mode(ide_drive_t *drive, const u8 speed)
@@ -146,7 +148,7 @@ static void __devinit init_hwif_slc90e66 (ide_hwif_t *hwif)
                 hwif->cbl = (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
 }
 
-static ide_pci_device_t slc90e66_chipset __devinitdata = {
+static const struct ide_port_info slc90e66_chipset __devinitdata = {
         .name           = "SLC90E66",
         .init_hwif      = init_hwif_slc90e66,
         .enablebits     = {{0x41,0x80,0x80}, {0x43,0x80,0x80}},
diff --git a/drivers/ide/pci/tc86c001.c b/drivers/ide/pci/tc86c001.c
index 631506e9b5d2..a66ebd14664e 100644
--- a/drivers/ide/pci/tc86c001.c
+++ b/drivers/ide/pci/tc86c001.c
@@ -218,7 +218,7 @@ static unsigned int __devinit init_chipset_tc86c001(struct pci_dev *dev,
         return err;
 }
 
-static ide_pci_device_t tc86c001_chipset __devinitdata = {
+static const struct ide_port_info tc86c001_chipset __devinitdata = {
         .name           = "TC86C001",
         .init_chipset   = init_chipset_tc86c001,
         .init_hwif      = init_hwif_tc86c001,
diff --git a/drivers/ide/pci/triflex.c b/drivers/ide/pci/triflex.c
index 30b52f62699a..a227c41d23a3 100644
--- a/drivers/ide/pci/triflex.c
+++ b/drivers/ide/pci/triflex.c
@@ -102,7 +102,7 @@ static void __devinit init_hwif_triflex(ide_hwif_t *hwif)
         hwif->set_dma_mode = &triflex_set_mode;
 }
 
-static ide_pci_device_t triflex_device __devinitdata = {
+static const struct ide_port_info triflex_device __devinitdata = {
         .name           = "TRIFLEX",
         .init_hwif      = init_hwif_triflex,
         .enablebits     = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
diff --git a/drivers/ide/pci/trm290.c b/drivers/ide/pci/trm290.c
index 140d486f6237..5011ba22e36c 100644
--- a/drivers/ide/pci/trm290.c
+++ b/drivers/ide/pci/trm290.c
@@ -250,7 +250,6 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
         u8 reg = 0;
         struct pci_dev *dev = hwif->pci_dev;
 
-        hwif->chipset = ide_trm290;
         cfgbase = pci_resource_start(dev, 4);
         if ((dev->class & 5) && cfgbase) {
                 hwif->config_data = cfgbase;
@@ -320,9 +319,10 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
 #endif
 }
 
-static ide_pci_device_t trm290_chipset __devinitdata = {
+static const struct ide_port_info trm290_chipset __devinitdata = {
         .name           = "TRM290",
         .init_hwif      = init_hwif_trm290,
+        .chipset        = ide_trm290,
         .host_flags     = IDE_HFLAG_NO_ATAPI_DMA |
 #if 0 /* play it safe for now */
                           IDE_HFLAG_TRUST_BIOS_FOR_DMA |
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c
index c8022a92a0e3..a0d3c16b68ec 100644
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -1,6 +1,6 @@
 /*
  *
- * Version 3.49
+ * Version 3.50
  *
  * VIA IDE driver for Linux. Supported southbridges:
  *
@@ -422,65 +422,40 @@ static u8 __devinit via82cxxx_cable_detect(ide_hwif_t *hwif)
 
 static void __devinit init_hwif_via82cxxx(ide_hwif_t *hwif)
 {
-        struct via82cxxx_dev *vdev = pci_get_drvdata(hwif->pci_dev);
-        int i;
-
         hwif->set_pio_mode = &via_set_pio_mode;
         hwif->set_dma_mode = &via_set_drive;
 
-#ifdef CONFIG_PPC_CHRP
-        if(machine_is(chrp) && _chrp_type == _CHRP_Pegasos) {
-                hwif->irq = hwif->channel ? 15 : 14;
-        }
-#endif
-
-        for (i = 0; i < 2; i++) {
-                hwif->drives[i].io_32bit = 1;
-                hwif->drives[i].unmask = (vdev->via_config->flags & VIA_NO_UNMASK) ? 0 : 1;
-        }
-
         if (!hwif->dma_base)
                 return;
 
-        hwif->ultra_mask = vdev->via_config->udma_mask;
-
         if (hwif->cbl != ATA_CBL_PATA40_SHORT)
                 hwif->cbl = via82cxxx_cable_detect(hwif);
 }
 
-static ide_pci_device_t via82cxxx_chipsets[] __devinitdata = {
-        {       /* 0 */
-                .name           = "VP_IDE",
-                .init_chipset   = init_chipset_via82cxxx,
-                .init_hwif      = init_hwif_via82cxxx,
-                .enablebits     = {{0x40,0x02,0x02}, {0x40,0x01,0x01}},
-                .host_flags     = IDE_HFLAG_PIO_NO_BLACKLIST |
-                                  IDE_HFLAG_PIO_NO_DOWNGRADE |
-                                  IDE_HFLAG_POST_SET_MODE |
-                                  IDE_HFLAG_NO_AUTODMA |
-                                  IDE_HFLAG_BOOTABLE,
-                .pio_mask       = ATA_PIO5,
-                .swdma_mask     = ATA_SWDMA2,
-                .mwdma_mask     = ATA_MWDMA2,
-        },{     /* 1 */
-                .name           = "VP_IDE",
-                .init_chipset   = init_chipset_via82cxxx,
-                .init_hwif      = init_hwif_via82cxxx,
-                .enablebits     = {{0x00,0x00,0x00}, {0x00,0x00,0x00}},
-                .host_flags     = IDE_HFLAG_PIO_NO_BLACKLIST |
-                                  IDE_HFLAG_PIO_NO_DOWNGRADE |
-                                  IDE_HFLAG_POST_SET_MODE |
-                                  IDE_HFLAG_BOOTABLE,
-                .pio_mask       = ATA_PIO5,
-                .swdma_mask     = ATA_SWDMA2,
-                .mwdma_mask     = ATA_MWDMA2,
-        }
+static const struct ide_port_info via82cxxx_chipset __devinitdata = {
+        .name           = "VP_IDE",
+        .init_chipset   = init_chipset_via82cxxx,
+        .init_hwif      = init_hwif_via82cxxx,
+        .enablebits     = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } },
+        .host_flags     = IDE_HFLAG_PIO_NO_BLACKLIST |
+                          IDE_HFLAG_PIO_NO_DOWNGRADE |
+                          IDE_HFLAG_POST_SET_MODE |
+                          IDE_HFLAG_IO_32BIT |
+                          IDE_HFLAG_BOOTABLE,
+        .pio_mask       = ATA_PIO5,
+        .swdma_mask     = ATA_SWDMA2,
+        .mwdma_mask     = ATA_MWDMA2,
 };
 
 static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
         struct pci_dev *isa = NULL;
         struct via_isa_bridge *via_config;
+        u8 idx = id->driver_data;
+        struct ide_port_info d;
+
+        d = via82cxxx_chipset;
+
         /*
          * Find the ISA bridge and check we know what it is.
          */
@@ -490,7 +465,23 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i
                 printk(KERN_WARNING "VP_IDE: Unknown VIA SouthBridge, disabling DMA.\n");
                 return -ENODEV;
         }
-        return ide_setup_pci_device(dev, &via82cxxx_chipsets[id->driver_data]);
+
+        if (idx == 0)
+                d.host_flags |= IDE_HFLAG_NO_AUTODMA;
+        else
+                d.enablebits[1].reg = d.enablebits[0].reg = 0;
+
+        if ((via_config->flags & VIA_NO_UNMASK) == 0)
+                d.host_flags |= IDE_HFLAG_UNMASK_IRQS;
+
+#ifdef CONFIG_PPC_CHRP
+        if (machine_is(chrp) && _chrp_type == _CHRP_Pegasos)
+                d.host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS;
+#endif
+
+        d.udma_mask = via_config->udma_mask;
+
+        return ide_setup_pci_device(dev, &d);
 }
 
 static const struct pci_device_id via_pci_tbl[] = {
diff --git a/drivers/ide/ppc/mpc8xx.c b/drivers/ide/ppc/mpc8xx.c
index df2e92034f5d..5f0da35ab5ad 100644
--- a/drivers/ide/ppc/mpc8xx.c
+++ b/drivers/ide/ppc/mpc8xx.c
@@ -316,8 +316,8 @@ m8xx_ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port,
 
         ide_hwifs[data_port].pio_mask = ATA_PIO4;
         ide_hwifs[data_port].set_pio_mode = m8xx_ide_set_pio_mode;
+        ide_hwifs[data_port].ack_intr = (ide_ack_intr_t *)ide_interrupt_ack;
 
-        hw->ack_intr = (ide_ack_intr_t *) ide_interrupt_ack;
         /* Enable Harddisk Interrupt,
          * and make it edge sensitive
          */
@@ -402,8 +402,8 @@ void m8xx_ide_init_hwif_ports (hw_regs_t *hw,
 
         ide_hwifs[data_port].pio_mask = ATA_PIO4;
         ide_hwifs[data_port].set_pio_mode = m8xx_ide_set_pio_mode;
+        ide_hwifs[data_port].ack_intr = (ide_ack_intr_t *)ide_interrupt_ack;
 
-        hw->ack_intr = (ide_ack_intr_t *) ide_interrupt_ack;
         /* Enable Harddisk Interrupt,
          * and make it edge sensitive
          */
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index c55479356768..816b5311dad6 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1039,6 +1039,8 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
 {
         struct device_node *np = pmif->node;
         const int *bidp;
+        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+        hw_regs_t hw;
 
         pmif->cable_80 = 0;
         pmif->broken_dma = pmif->broken_dma_warn = 0;
@@ -1124,8 +1126,9 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
         /* Tell common code _not_ to mess with resources */
         hwif->mmio = 1;
         hwif->hwif_data = pmif;
-        pmac_ide_init_hwif_ports(&hwif->hw, pmif->regbase, 0, &hwif->irq);
-        memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
+        memset(&hw, 0, sizeof(hw));
+        pmac_ide_init_hwif_ports(&hw, pmif->regbase, 0, &hwif->irq);
+        memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports));
         hwif->chipset = ide_pmac;
         hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET] || pmif->mediabay;
         hwif->hold = pmif->mediabay;
@@ -1163,10 +1166,9 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
                 pmac_ide_setup_dma(pmif, hwif);
 #endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
 
-        /* We probe the hwif now */
-        probe_hwif_init(hwif);
+        idx[0] = hwif->index;
 
-        ide_proc_register_port(hwif);
+        ide_device_add(idx);
 
         return 0;
 }
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index fff567bcedbe..02d14bf85ab2 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -147,15 +147,15 @@ static int ide_setup_pci_baseregs (struct pci_dev *dev, const char *name)
 #ifdef CONFIG_BLK_DEV_IDEDMA_PCI
 /**
  *      ide_get_or_set_dma_base         -       setup BMIBA
- *      @d: IDE pci device data
- *      @hwif: Interface
+ *      @d: IDE port info
+ *      @hwif: IDE interface
  *
  *      Fetch the DMA Bus-Master-I/O-Base-Address (BMIBA) from PCI space.
  *      Where a device has a partner that is already in DMA mode we check
  *      and enforce IDE simplex rules.
  */
 
-static unsigned long ide_get_or_set_dma_base(ide_pci_device_t *d, ide_hwif_t *hwif)
+static unsigned long ide_get_or_set_dma_base(const struct ide_port_info *d, ide_hwif_t *hwif)
 {
         unsigned long   dma_base = 0;
         struct pci_dev  *dev = hwif->pci_dev;
@@ -225,10 +225,11 @@ static unsigned long ide_get_or_set_dma_base(ide_pci_device_t *d, ide_hwif_t *hw
 }
 #endif /* CONFIG_BLK_DEV_IDEDMA_PCI */
 
-void ide_setup_pci_noise (struct pci_dev *dev, ide_pci_device_t *d)
+void ide_setup_pci_noise(struct pci_dev *dev, const struct ide_port_info *d)
 {
-        printk(KERN_INFO "%s: IDE controller at PCI slot %s\n",
-                         d->name, pci_name(dev));
+        printk(KERN_INFO "%s: IDE controller (0x%04x:0x%04x rev 0x%02x) at "
+                         " PCI slot %s\n", d->name, dev->vendor, dev->device,
+                         dev->revision, pci_name(dev));
 }
 
 EXPORT_SYMBOL_GPL(ide_setup_pci_noise);
@@ -237,15 +238,15 @@ EXPORT_SYMBOL_GPL(ide_setup_pci_noise);
 /**
  *      ide_pci_enable  -       do PCI enables
  *      @dev: PCI device
- *      @d: IDE pci device data
+ *      @d: IDE port info
  *
  *      Enable the IDE PCI device. We attempt to enable the device in full
  *      but if that fails then we only need BAR4 so we will enable that.
  *      
  *      Returns zero on success or an error code
  */
- 
-static int ide_pci_enable(struct pci_dev *dev, ide_pci_device_t *d)
+
+static int ide_pci_enable(struct pci_dev *dev, const struct ide_port_info *d)
 {
         int ret;
 
@@ -260,9 +261,9 @@ static int ide_pci_enable(struct pci_dev *dev, ide_pci_device_t *d)
         }
 
         /*
-         * assume all devices can do 32-bit dma for now. we can add a
-         * dma mask field to the ide_pci_device_t if we need it (or let
-         * lower level driver set the dma mask)
+         * assume all devices can do 32-bit DMA for now, we can add
+         * a DMA mask field to the struct ide_port_info if we need it
+         * (or let lower level driver set the DMA mask)
          */
         ret = pci_set_dma_mask(dev, DMA_32BIT_MASK);
         if (ret < 0) {
@@ -284,13 +285,13 @@ out:
 /**
  *      ide_pci_configure       -       configure an unconfigured device
  *      @dev: PCI device
- *      @d: IDE pci device data
+ *      @d: IDE port info
  *
  *      Enable and configure the PCI device we have been passed.
  *      Returns zero on success or an error code.
  */
- 
-static int ide_pci_configure(struct pci_dev *dev, ide_pci_device_t *d)
+
+static int ide_pci_configure(struct pci_dev *dev, const struct ide_port_info *d)
 {
         u16 pcicmd = 0;
         /*
@@ -318,15 +319,15 @@ static int ide_pci_configure(struct pci_dev *dev, ide_pci_device_t *d)
 
 /**
  *      ide_pci_check_iomem     -       check a register is I/O
- *      @dev: pci device
- *      @d: ide_pci_device
- *      @bar: bar number
+ *      @dev: PCI device
+ *      @d: IDE port info
+ *      @bar: BAR number
  *
  *      Checks if a BAR is configured and points to MMIO space. If so
  *      print an error and return an error code. Otherwise return 0
  */
- 
-static int ide_pci_check_iomem(struct pci_dev *dev, ide_pci_device_t *d, int bar)
+
+static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *d, int bar)
 {
         ulong flags = pci_resource_flags(dev, bar);
         
@@ -348,7 +349,7 @@ static int ide_pci_check_iomem(struct pci_dev *dev, ide_pci_device_t *d, int bar
 /**
  *      ide_hwif_configure      -       configure an IDE interface
  *      @dev: PCI device holding interface
- *      @d: IDE pci data
+ *      @d: IDE port info
  *      @mate: Paired interface if any
  *
  *      Perform the initial set up for the hardware interface structure. This
@@ -357,8 +358,8 @@ static int ide_pci_check_iomem(struct pci_dev *dev, ide_pci_device_t *d, int bar
  *
  *      Returns the new hardware interface structure, or NULL on a failure
  */
- 
-static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, ide_pci_device_t *d, ide_hwif_t *mate, int port, int irq)
+
+static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, const struct ide_port_info *d, ide_hwif_t *mate, int port, int irq)
 {
         unsigned long ctl = 0, base = 0;
         ide_hwif_t *hwif;
@@ -387,19 +388,20 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, ide_pci_device_t *d,
                 return NULL;    /* no room in ide_hwifs[] */
         if (hwif->io_ports[IDE_DATA_OFFSET] != base ||
             hwif->io_ports[IDE_CONTROL_OFFSET] != (ctl | 2)) {
-                memset(&hwif->hw, 0, sizeof(hwif->hw));
-#ifndef IDE_ARCH_OBSOLETE_INIT
-                ide_std_init_ports(&hwif->hw, base, (ctl | 2));
-                hwif->hw.io_ports[IDE_IRQ_OFFSET] = 0;
+                hw_regs_t hw;
+
+                memset(&hw, 0, sizeof(hw));
+#ifndef CONFIG_IDE_ARCH_OBSOLETE_INIT
+                ide_std_init_ports(&hw, base, ctl | 2);
 #else
-                ide_init_hwif_ports(&hwif->hw, base, (ctl | 2), NULL);
+                ide_init_hwif_ports(&hw, base, ctl | 2, NULL);
 #endif
-                memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
+                memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports));
                 hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
         }
-        hwif->chipset = ide_pci;
+        hwif->chipset = d->chipset ? d->chipset : ide_pci;
         hwif->pci_dev = dev;
-        hwif->cds = (struct ide_pci_device_s *) d;
+        hwif->cds = d;
         hwif->channel = port;
 
         if (!hwif->irq)
@@ -414,21 +416,17 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, ide_pci_device_t *d,
 /**
  *      ide_hwif_setup_dma      -       configure DMA interface
  *      @dev: PCI device
- *      @d: IDE pci data
- *      @hwif: Hardware interface we are configuring
+ *      @d: IDE port info
+ *      @hwif: IDE interface
  *
  *      Set up the DMA base for the interface. Enable the master bits as
  *      necessary and attempt to bring the device DMA into a ready to use
  *      state
  */
- 
-#ifndef CONFIG_BLK_DEV_IDEDMA_PCI
-static void ide_hwif_setup_dma(struct pci_dev *dev, ide_pci_device_t *d, ide_hwif_t *hwif)
-{
-}
-#else
-static void ide_hwif_setup_dma(struct pci_dev *dev, ide_pci_device_t *d, ide_hwif_t *hwif)
+
+static void ide_hwif_setup_dma(struct pci_dev *dev, const struct ide_port_info *d, ide_hwif_t *hwif)
 {
+#ifdef CONFIG_BLK_DEV_IDEDMA_PCI
         u16 pcicmd;
 
         pci_read_config_word(dev, PCI_COMMAND, &pcicmd);
@@ -460,13 +458,13 @@ static void ide_hwif_setup_dma(struct pci_dev *dev, ide_pci_device_t *d, ide_hwi
                                 "(BIOS)\n", hwif->name, d->name);
                 }
         }
-}
 #endif /* CONFIG_BLK_DEV_IDEDMA_PCI*/
+}
 
 /**
  *      ide_setup_pci_controller        -       set up IDE PCI
  *      @dev: PCI device
- *      @d: IDE PCI data
+ *      @d: IDE port info
  *      @noisy: verbose flag
  *      @config: returned as 1 if we configured the hardware
  *
@@ -474,8 +472,8 @@ static void ide_hwif_setup_dma(struct pci_dev *dev, ide_pci_device_t *d, ide_hwi
  *      up the PCI side of the device, checks that the device is enabled
  *      and enables it if need be
  */
- 
-static int ide_setup_pci_controller(struct pci_dev *dev, ide_pci_device_t *d, int noisy, int *config)
+
+static int ide_setup_pci_controller(struct pci_dev *dev, const struct ide_port_info *d, int noisy, int *config)
 {
         int ret;
         u16 pcicmd;
@@ -500,9 +498,6 @@ static int ide_setup_pci_controller(struct pci_dev *dev, ide_pci_device_t *d, in
                 printk(KERN_INFO "%s: device enabled (Linux)\n", d->name);
         }
 
-        if (noisy)
-                printk(KERN_INFO "%s: chipset revision %d\n",
-                                 d->name, dev->revision);
 out:
         return ret;
 }
@@ -510,9 +505,9 @@ out:
 /**
  *      ide_pci_setup_ports     -       configure ports/devices on PCI IDE
  *      @dev: PCI device
- *      @d: IDE pci device info
+ *      @d: IDE port info
  *      @pciirq: IRQ line
- *      @index: ata index to update
+ *      @idx: ATA index table to update
  *
  *      Scan the interfaces attached to this device and do any
  *      necessary per port setup. Attach the devices and ask the
@@ -522,26 +517,25 @@ out:
  *      but is also used directly as a helper function by some controllers
  *      where the chipset setup is not the default PCI IDE one.
  */
- 
-void ide_pci_setup_ports(struct pci_dev *dev, ide_pci_device_t *d, int pciirq, ata_index_t *index)
+
+void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, int pciirq, u8 *idx)
 {
         int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port;
-        int at_least_one_hwif_enabled = 0;
         ide_hwif_t *hwif, *mate = NULL;
         u8 tmp;
 
-        index->all = 0xf0f0;
-
         /*
          * Set up the IDE ports
          */
-         
+
         for (port = 0; port < channels; ++port) {
-                ide_pci_enablebit_t *e = &(d->enablebits[port]);
-        
+                const ide_pci_enablebit_t *e = &(d->enablebits[port]);
+
                 if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) ||
-                    (tmp & e->mask) != e->val))
+                    (tmp & e->mask) != e->val)) {
+                        printk(KERN_INFO "%s: IDE port disabled\n", d->name);
                         continue;       /* port not enabled */
+                }
 
                 if ((hwif = ide_hwif_configure(dev, d, mate, port, pciirq)) == NULL)
                         continue;
@@ -549,11 +543,7 @@ void ide_pci_setup_ports(struct pci_dev *dev, ide_pci_device_t *d, int pciirq, a
                 /* setup proper ancestral information */
                 hwif->gendev.parent = &dev->dev;
 
-                if (hwif->channel) {
-                        index->b.high = hwif->index;
-                } else {
-                        index->b.low = hwif->index;
-                }
+                *(idx + port) = hwif->index;
 
                 
                 if (d->init_iops)
@@ -562,15 +552,28 @@ void ide_pci_setup_ports(struct pci_dev *dev, ide_pci_device_t *d, int pciirq, a
                 if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0)
                         ide_hwif_setup_dma(dev, d, hwif);
 
-                if ((d->host_flags & IDE_HFLAG_LEGACY_IRQS) && hwif->irq == 0)
+                if ((!hwif->irq && (d->host_flags & IDE_HFLAG_LEGACY_IRQS)) ||
+                    (d->host_flags & IDE_HFLAG_FORCE_LEGACY_IRQS))
                         hwif->irq = port ? 15 : 14;
 
+                hwif->fixup = d->fixup;
+
                 hwif->host_flags = d->host_flags;
                 hwif->pio_mask = d->pio_mask;
 
                 if ((d->host_flags & IDE_HFLAG_SERIALIZE) && hwif->mate)
                         hwif->mate->serialized = hwif->serialized = 1;
 
+                if (d->host_flags & IDE_HFLAG_IO_32BIT) {
+                        hwif->drives[0].io_32bit = 1;
+                        hwif->drives[1].io_32bit = 1;
+                }
+
+                if (d->host_flags & IDE_HFLAG_UNMASK_IRQS) {
+                        hwif->drives[0].unmask = 1;
+                        hwif->drives[1].unmask = 1;
+                }
+
                 if (hwif->dma_base) {
                         hwif->swdma_mask = d->swdma_mask;
                         hwif->mwdma_mask = d->mwdma_mask;
@@ -580,6 +583,9 @@ void ide_pci_setup_ports(struct pci_dev *dev, ide_pci_device_t *d, int pciirq, a
                 hwif->drives[0].autotune = 1;
                 hwif->drives[1].autotune = 1;
 
+                if (d->host_flags & IDE_HFLAG_RQSIZE_256)
+                        hwif->rqsize = 256;
+
                 if (d->init_hwif)
                         /* Call chipset-specific routine
                          * for each enabled hwif
@@ -587,10 +593,7 @@ void ide_pci_setup_ports(struct pci_dev *dev, ide_pci_device_t *d, int pciirq, a
                         d->init_hwif(hwif);
 
                 mate = hwif;
-                at_least_one_hwif_enabled = 1;
         }
-        if (!at_least_one_hwif_enabled)
-                printk(KERN_INFO "%s: neither IDE port enabled (BIOS)\n", d->name);
 }
 
 EXPORT_SYMBOL_GPL(ide_pci_setup_ports);
@@ -602,13 +605,13 @@ EXPORT_SYMBOL_GPL(ide_pci_setup_ports);
  *
  * One thing that is not standardized is the location of the
  * primary/secondary interface "enable/disable" bits.  For chipsets that
- * we "know" about, this information is in the ide_pci_device_t struct;
+ * we "know" about, this information is in the struct ide_port_info;
  * for all other chipsets, we just assume both interfaces are enabled.
  */
-static int do_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t *d,
-                                   ata_index_t *index, u8 noisy)
+static int do_ide_setup_pci_device(struct pci_dev *dev,
+                                   const struct ide_port_info *d,
+                                   u8 *idx, u8 noisy)
 {
-        static ata_index_t ata_index = { .b = { .low = 0xff, .high = 0xff } };
         int tried_config = 0;
         int pciirq, ret;
 
@@ -658,51 +661,35 @@ static int do_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t *d,
 
         /* FIXME: silent failure can happen */
 
-        *index = ata_index;
-        ide_pci_setup_ports(dev, d, pciirq, index);
+        ide_pci_setup_ports(dev, d, pciirq, idx);
 out:
         return ret;
 }
 
-int ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t *d)
+int ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d)
 {
-        ide_hwif_t *hwif = NULL, *mate = NULL;
-        ata_index_t index_list;
+        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
         int ret;
 
-        ret = do_ide_setup_pci_device(dev, d, &index_list, 1);
-        if (ret < 0)
-                goto out;
+        ret = do_ide_setup_pci_device(dev, d, &idx[0], 1);
 
-        if ((index_list.b.low & 0xf0) != 0xf0)
-                hwif = &ide_hwifs[index_list.b.low];
-        if ((index_list.b.high & 0xf0) != 0xf0)
-                mate = &ide_hwifs[index_list.b.high];
+        if (ret >= 0)
+                ide_device_add(idx);
 
-        if (hwif)
-                probe_hwif_init_with_fixup(hwif, d->fixup);
-        if (mate)
-                probe_hwif_init_with_fixup(mate, d->fixup);
-
-        if (hwif)
-                ide_proc_register_port(hwif);
-        if (mate)
-                ide_proc_register_port(mate);
-out:
         return ret;
 }
 
 EXPORT_SYMBOL_GPL(ide_setup_pci_device);
 
 int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2,
-                          ide_pci_device_t *d)
+                          const struct ide_port_info *d)
 {
         struct pci_dev *pdev[] = { dev1, dev2 };
-        ata_index_t index_list[2];
         int ret, i;
+        u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
 
         for (i = 0; i < 2; i++) {
-                ret = do_ide_setup_pci_device(pdev[i], d, index_list + i, !i);
+                ret = do_ide_setup_pci_device(pdev[i], d, &idx[i*2], !i);
                 /*
                  * FIXME: Mom, mom, they stole me the helper function to undo
                  * do_ide_setup_pci_device() on the first device!
@@ -711,25 +698,7 @@ int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2,
                         goto out;
         }
 
-        for (i = 0; i < 2; i++) {
-                u8 idx[2] = { index_list[i].b.low, index_list[i].b.high };
-                int j;
-
-                for (j = 0; j < 2; j++) {
-                        if ((idx[j] & 0xf0) != 0xf0)
-                                probe_hwif_init(ide_hwifs + idx[j]);
-                }
-        }
-
-        for (i = 0; i < 2; i++) {
-                u8 idx[2] = { index_list[i].b.low, index_list[i].b.high };
-                int j;
-
-                for (j = 0; j < 2; j++) {
-                        if ((idx[j] & 0xf0) != 0xf0)
-                                ide_proc_register_port(ide_hwifs + idx[j]);
-                }
-        }
+        ide_device_add(idx);
 out:
         return ret;
 }
@@ -754,9 +723,6 @@ static LIST_HEAD(ide_pci_drivers);
  *      hands the controllers off to the core PCI code to do the rest of
  *      the work.
  *
- *      The driver_data of the driver table must point to an ide_pci_device_t
- *      describing the interface.
- *
  *      Returns are the same as for pci_register_driver
  */
 
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index ec1b6cfefcd3..bfc6061f1554 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -136,7 +136,8 @@ static int gameport_measure_speed(struct gameport *gameport)
         }
 
         gameport_close(gameport);
-        return (cpu_data[raw_smp_processor_id()].loops_per_jiffy * (unsigned long)HZ / (1000 / 50)) / (tx < 1 ? 1 : tx);
+        return (cpu_data(raw_smp_processor_id()).loops_per_jiffy *
+                (unsigned long)HZ / (1000 / 50)) / (tx < 1 ? 1 : tx);
 
 #else
 
diff --git a/drivers/macintosh/mediabay.c b/drivers/macintosh/mediabay.c
index c803d2bba65d..48d647abea46 100644
--- a/drivers/macintosh/mediabay.c
+++ b/drivers/macintosh/mediabay.c
@@ -563,7 +563,7 @@ static void media_bay_step(int i)
                                 ide_init_hwif_ports(&hw, (unsigned long) bay->cd_base, (unsigned long) 0, NULL);
                                 hw.irq = bay->cd_irq;
                                 hw.chipset = ide_pmac;
-                                bay->cd_index = ide_register_hw(&hw, 0, NULL);
+                                bay->cd_index = ide_register_hw(&hw, NULL, 0, NULL);
                                 pmu_resume();
                         }
                         if (bay->cd_index == -1) {
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 34a8c60a254a..9b6fbf044fd8 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -267,6 +267,12 @@ config DM_MULTIPATH_RDAC
         ---help---
           Multipath support for LSI/Engenio RDAC.
 
+config DM_MULTIPATH_HP
+        tristate "HP MSA multipath support (EXPERIMENTAL)"
+        depends on DM_MULTIPATH && BLK_DEV_DM && EXPERIMENTAL
+        ---help---
+          Multipath support for HP MSA (Active/Passive) series hardware.
+
 config DM_DELAY
         tristate "I/O delaying target (EXPERIMENTAL)"
         depends on BLK_DEV_DM && EXPERIMENTAL
@@ -276,4 +282,10 @@ config DM_DELAY
 
         If unsure, say N.
 
+config DM_UEVENT
+        bool "DM uevents (EXPERIMENTAL)"
+        depends on BLK_DEV_DM && EXPERIMENTAL
+        ---help---
+        Generate udev events for DM events.
+
 endif # MD
diff --git a/drivers/md/Makefile b/drivers/md/Makefile
index c49366cdc05d..d9aa7edb8780 100644
--- a/drivers/md/Makefile
+++ b/drivers/md/Makefile
@@ -8,6 +8,7 @@ dm-multipath-objs := dm-hw-handler.o dm-path-selector.o dm-mpath.o
 dm-snapshot-objs := dm-snap.o dm-exception-store.o
 dm-mirror-objs  := dm-log.o dm-raid1.o
 dm-rdac-objs    := dm-mpath-rdac.o
+dm-hp-sw-objs   := dm-mpath-hp-sw.o
 md-mod-objs     := md.o bitmap.o
 raid456-objs    := raid5.o raid6algos.o raid6recov.o raid6tables.o \
                    raid6int1.o raid6int2.o raid6int4.o \
@@ -35,6 +36,7 @@ obj-$(CONFIG_DM_CRYPT)		+= dm-crypt.o
 obj-$(CONFIG_DM_DELAY)          += dm-delay.o
 obj-$(CONFIG_DM_MULTIPATH)      += dm-multipath.o dm-round-robin.o
 obj-$(CONFIG_DM_MULTIPATH_EMC)  += dm-emc.o
+obj-$(CONFIG_DM_MULTIPATH_HP)   += dm-hp-sw.o
 obj-$(CONFIG_DM_MULTIPATH_RDAC) += dm-rdac.o
 obj-$(CONFIG_DM_SNAPSHOT)       += dm-snapshot.o
 obj-$(CONFIG_DM_MIRROR)         += dm-mirror.o
@@ -48,6 +50,10 @@ ifeq ($(CONFIG_ALTIVEC),y)
 altivec_flags := -maltivec -mabi=altivec
 endif
 
+ifeq ($(CONFIG_DM_UEVENT),y)
+dm-mod-objs                     += dm-uevent.o
+endif
+
 targets += raid6int1.c
 $(obj)/raid6int1.c:   UNROLL := 1
 $(obj)/raid6int1.c:   $(src)/raid6int.uc $(src)/unroll.pl FORCE
diff --git a/drivers/md/dm-bio-list.h b/drivers/md/dm-bio-list.h
index 3f7b827649e3..d4509be0fe67 100644
--- a/drivers/md/dm-bio-list.h
+++ b/drivers/md/dm-bio-list.h
@@ -21,11 +21,6 @@ static inline int bio_list_empty(const struct bio_list *bl)
         return bl->head == NULL;
 }
 
-#define BIO_LIST_INIT { .head = NULL, .tail = NULL }
-
-#define BIO_LIST(bl) \
-        struct bio_list bl = BIO_LIST_INIT
-
 static inline void bio_list_init(struct bio_list *bl)
 {
         bl->head = bl->tail = NULL;
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 4a5849b55197..0eb5416798bd 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -36,7 +36,6 @@ struct dm_crypt_io {
         struct work_struct work;
         atomic_t pending;
         int error;
-        int post_process;
 };
 
 /*
@@ -57,7 +56,7 @@ struct crypt_config;
 
 struct crypt_iv_operations {
         int (*ctr)(struct crypt_config *cc, struct dm_target *ti,
-                   const char *opts);
+                   const char *opts);
         void (*dtr)(struct crypt_config *cc);
         const char *(*status)(struct crypt_config *cc);
         int (*generator)(struct crypt_config *cc, u8 *iv, sector_t sector);
@@ -80,6 +79,8 @@ struct crypt_config {
         mempool_t *page_pool;
         struct bio_set *bs;
 
+        struct workqueue_struct *io_queue;
+        struct workqueue_struct *crypt_queue;
         /*
          * crypto related data
          */
@@ -137,7 +138,7 @@ static int crypt_iv_plain_gen(struct crypt_config *cc, u8 *iv, sector_t sector)
 }
 
 static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
-                              const char *opts)
+                              const char *opts)
 {
         struct crypto_cipher *essiv_tfm;
         struct crypto_hash *hash_tfm;
@@ -175,6 +176,7 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
 
         if (err) {
                 ti->error = "Error calculating hash in ESSIV";
+                kfree(salt);
                 return err;
         }
 
@@ -188,7 +190,7 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
         if (crypto_cipher_blocksize(essiv_tfm) !=
             crypto_blkcipher_ivsize(cc->tfm)) {
                 ti->error = "Block size of ESSIV cipher does "
-                                "not match IV size of block cipher";
+                            "not match IV size of block cipher";
                 crypto_free_cipher(essiv_tfm);
                 kfree(salt);
                 return -EINVAL;
@@ -319,10 +321,10 @@ crypt_convert_scatterlist(struct crypt_config *cc, struct scatterlist *out,
         return r;
 }
 
-static void
-crypt_convert_init(struct crypt_config *cc, struct convert_context *ctx,
-                   struct bio *bio_out, struct bio *bio_in,
-                   sector_t sector, int write)
+static void crypt_convert_init(struct crypt_config *cc,
+                               struct convert_context *ctx,
+                               struct bio *bio_out, struct bio *bio_in,
+                               sector_t sector, int write)
 {
         ctx->bio_in = bio_in;
         ctx->bio_out = bio_out;
@@ -338,7 +340,7 @@ crypt_convert_init(struct crypt_config *cc, struct convert_context *ctx,
  * Encrypt / decrypt data from one bio to another one (can be the same one)
  */
 static int crypt_convert(struct crypt_config *cc,
-                         struct convert_context *ctx)
+                         struct convert_context *ctx)
 {
         int r = 0;
 
@@ -370,7 +372,7 @@ static int crypt_convert(struct crypt_config *cc,
                 }
 
                 r = crypt_convert_scatterlist(cc, &sg_out, &sg_in, sg_in.length,
-                                              ctx->write, ctx->sector);
+                                              ctx->write, ctx->sector);
                 if (r < 0)
                         break;
 
@@ -380,13 +382,13 @@ static int crypt_convert(struct crypt_config *cc,
         return r;
 }
 
- static void dm_crypt_bio_destructor(struct bio *bio)
- {
+static void dm_crypt_bio_destructor(struct bio *bio)
+{
         struct dm_crypt_io *io = bio->bi_private;
         struct crypt_config *cc = io->target->private;
 
         bio_free(bio, cc->bs);
- }
+}
 
 /*
  * Generate a new unfragmented bio with the given size
@@ -458,7 +460,7 @@ static void crypt_free_buffer_pages(struct crypt_config *cc, struct bio *clone)
  * One of the bios was finished. Check for completion of
  * the whole request and correctly clean up the buffer.
  */
-static void dec_pending(struct dm_crypt_io *io, int error)
+static void crypt_dec_pending(struct dm_crypt_io *io, int error)
 {
         struct crypt_config *cc = (struct crypt_config *) io->target->private;
 
@@ -474,18 +476,36 @@ static void dec_pending(struct dm_crypt_io *io, int error)
 }
 
 /*
- * kcryptd:
+ * kcryptd/kcryptd_io:
  *
  * Needed because it would be very unwise to do decryption in an
  * interrupt context.
+ *
+ * kcryptd performs the actual encryption or decryption.
+ *
+ * kcryptd_io performs the IO submission.
+ *
+ * They must be separated as otherwise the final stages could be
+ * starved by new requests which can block in the first stages due
+ * to memory allocation.
  */
-static struct workqueue_struct *_kcryptd_workqueue;
 static void kcryptd_do_work(struct work_struct *work);
+static void kcryptd_do_crypt(struct work_struct *work);
 
 static void kcryptd_queue_io(struct dm_crypt_io *io)
 {
+        struct crypt_config *cc = io->target->private;
+
         INIT_WORK(&io->work, kcryptd_do_work);
-        queue_work(_kcryptd_workqueue, &io->work);
+        queue_work(cc->io_queue, &io->work);
+}
+
+static void kcryptd_queue_crypt(struct dm_crypt_io *io)
+{
+        struct crypt_config *cc = io->target->private;
+
+        INIT_WORK(&io->work, kcryptd_do_crypt);
+        queue_work(cc->crypt_queue, &io->work);
 }
 
 static void crypt_endio(struct bio *clone, int error)
@@ -508,13 +528,12 @@ static void crypt_endio(struct bio *clone, int error)
         }
 
         bio_put(clone);
-        io->post_process = 1;
-        kcryptd_queue_io(io);
+        kcryptd_queue_crypt(io);
         return;
 
 out:
         bio_put(clone);
-        dec_pending(io, error);
+        crypt_dec_pending(io, error);
 }
 
 static void clone_init(struct dm_crypt_io *io, struct bio *clone)
@@ -544,7 +563,7 @@ static void process_read(struct dm_crypt_io *io)
          */
         clone = bio_alloc_bioset(GFP_NOIO, bio_segments(base_bio), cc->bs);
         if (unlikely(!clone)) {
-                dec_pending(io, -ENOMEM);
+                crypt_dec_pending(io, -ENOMEM);
                 return;
         }
 
@@ -579,7 +598,7 @@ static void process_write(struct dm_crypt_io *io)
         while (remaining) {
                 clone = crypt_alloc_buffer(io, remaining);
                 if (unlikely(!clone)) {
-                        dec_pending(io, -ENOMEM);
+                        crypt_dec_pending(io, -ENOMEM);
                         return;
                 }
 
@@ -589,7 +608,7 @@ static void process_write(struct dm_crypt_io *io)
                 if (unlikely(crypt_convert(cc, &ctx) < 0)) {
                         crypt_free_buffer_pages(cc, clone);
                         bio_put(clone);
-                        dec_pending(io, -EIO);
+                        crypt_dec_pending(io, -EIO);
                         return;
                 }
 
@@ -624,17 +643,23 @@ static void process_read_endio(struct dm_crypt_io *io)
         crypt_convert_init(cc, &ctx, io->base_bio, io->base_bio,
                            io->base_bio->bi_sector - io->target->begin, 0);
 
-        dec_pending(io, crypt_convert(cc, &ctx));
+        crypt_dec_pending(io, crypt_convert(cc, &ctx));
 }
 
 static void kcryptd_do_work(struct work_struct *work)
 {
         struct dm_crypt_io *io = container_of(work, struct dm_crypt_io, work);
 
-        if (io->post_process)
-                process_read_endio(io);
-        else if (bio_data_dir(io->base_bio) == READ)
+        if (bio_data_dir(io->base_bio) == READ)
                 process_read(io);
+}
+
+static void kcryptd_do_crypt(struct work_struct *work)
+{
+        struct dm_crypt_io *io = container_of(work, struct dm_crypt_io, work);
+
+        if (bio_data_dir(io->base_bio) == READ)
+                process_read_endio(io);
         else
                 process_write(io);
 }
@@ -690,7 +715,7 @@ static int crypt_set_key(struct crypt_config *cc, char *key)
         cc->key_size = key_size; /* initial settings */
 
         if ((!key_size && strcmp(key, "-")) ||
-            (key_size && crypt_decode_key(cc->key, key, key_size) < 0))
+           (key_size && crypt_decode_key(cc->key, key, key_size) < 0))
                 return -EINVAL;
 
         set_bit(DM_CRYPT_KEY_VALID, &cc->flags);
@@ -746,7 +771,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 
         if (crypt_set_key(cc, argv[1])) {
                 ti->error = "Error decoding key";
-                goto bad1;
+                goto bad_cipher;
         }
 
         /* Compatiblity mode for old dm-crypt cipher strings */
@@ -757,19 +782,19 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 
         if (strcmp(chainmode, "ecb") && !ivmode) {
                 ti->error = "This chaining mode requires an IV mechanism";
-                goto bad1;
+                goto bad_cipher;
         }
 
-        if (snprintf(cc->cipher, CRYPTO_MAX_ALG_NAME, "%s(%s)", chainmode, 
-                     cipher) >= CRYPTO_MAX_ALG_NAME) {
+        if (snprintf(cc->cipher, CRYPTO_MAX_ALG_NAME, "%s(%s)",
+                     chainmode, cipher) >= CRYPTO_MAX_ALG_NAME) {
                 ti->error = "Chain mode + cipher name is too long";
-                goto bad1;
+                goto bad_cipher;
         }
 
         tfm = crypto_alloc_blkcipher(cc->cipher, 0, CRYPTO_ALG_ASYNC);
         if (IS_ERR(tfm)) {
                 ti->error = "Error allocating crypto tfm";
-                goto bad1;
+                goto bad_cipher;
         }
 
         strcpy(cc->cipher, cipher);
@@ -793,18 +818,18 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
                 cc->iv_gen_ops = &crypt_iv_null_ops;
         else {
                 ti->error = "Invalid IV mode";
-                goto bad2;
+                goto bad_ivmode;
         }
 
         if (cc->iv_gen_ops && cc->iv_gen_ops->ctr &&
             cc->iv_gen_ops->ctr(cc, ti, ivopts) < 0)
-                goto bad2;
+                goto bad_ivmode;
 
         cc->iv_size = crypto_blkcipher_ivsize(tfm);
         if (cc->iv_size)
                 /* at least a 64 bit sector number should fit in our buffer */
                 cc->iv_size = max(cc->iv_size,
-                                  (unsigned int)(sizeof(u64) / sizeof(u8)));
+                                  (unsigned int)(sizeof(u64) / sizeof(u8)));
         else {
                 if (cc->iv_gen_ops) {
                         DMWARN("Selected cipher does not support IVs");
@@ -817,13 +842,13 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
         cc->io_pool = mempool_create_slab_pool(MIN_IOS, _crypt_io_pool);
         if (!cc->io_pool) {
                 ti->error = "Cannot allocate crypt io mempool";
-                goto bad3;
+                goto bad_slab_pool;
         }
 
         cc->page_pool = mempool_create_page_pool(MIN_POOL_PAGES, 0);
         if (!cc->page_pool) {
                 ti->error = "Cannot allocate page mempool";
-                goto bad4;
+                goto bad_page_pool;
         }
 
         cc->bs = bioset_create(MIN_IOS, MIN_IOS);
@@ -834,25 +859,25 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 
         if (crypto_blkcipher_setkey(tfm, cc->key, key_size) < 0) {
                 ti->error = "Error setting key";
-                goto bad5;
+                goto bad_device;
         }
 
         if (sscanf(argv[2], "%llu", &tmpll) != 1) {
                 ti->error = "Invalid iv_offset sector";
-                goto bad5;
+                goto bad_device;
         }
         cc->iv_offset = tmpll;
 
         if (sscanf(argv[4], "%llu", &tmpll) != 1) {
                 ti->error = "Invalid device sector";
-                goto bad5;
+                goto bad_device;
         }
         cc->start = tmpll;
 
         if (dm_get_device(ti, argv[3], cc->start, ti->len,
-                          dm_table_get_mode(ti->table), &cc->dev)) {
+                          dm_table_get_mode(ti->table), &cc->dev)) {
                 ti->error = "Device lookup failed";
-                goto bad5;
+                goto bad_device;
         }
 
         if (ivmode && cc->iv_gen_ops) {
@@ -861,27 +886,45 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
                 cc->iv_mode = kmalloc(strlen(ivmode) + 1, GFP_KERNEL);
                 if (!cc->iv_mode) {
                         ti->error = "Error kmallocing iv_mode string";
-                        goto bad5;
+                        goto bad_ivmode_string;
                 }
                 strcpy(cc->iv_mode, ivmode);
         } else
                 cc->iv_mode = NULL;
 
+        cc->io_queue = create_singlethread_workqueue("kcryptd_io");
+        if (!cc->io_queue) {
+                ti->error = "Couldn't create kcryptd io queue";
+                goto bad_io_queue;
+        }
+
+        cc->crypt_queue = create_singlethread_workqueue("kcryptd");
+        if (!cc->crypt_queue) {
+                ti->error = "Couldn't create kcryptd queue";
+                goto bad_crypt_queue;
+        }
+
         ti->private = cc;
         return 0;
 
-bad5:
+bad_crypt_queue:
+        destroy_workqueue(cc->io_queue);
+bad_io_queue:
+        kfree(cc->iv_mode);
+bad_ivmode_string:
+        dm_put_device(ti, cc->dev);
+bad_device:
         bioset_free(cc->bs);
 bad_bs:
         mempool_destroy(cc->page_pool);
-bad4:
+bad_page_pool:
         mempool_destroy(cc->io_pool);
-bad3:
+bad_slab_pool:
         if (cc->iv_gen_ops && cc->iv_gen_ops->dtr)
                 cc->iv_gen_ops->dtr(cc);
-bad2:
+bad_ivmode:
         crypto_free_blkcipher(tfm);
-bad1:
+bad_cipher:
         /* Must zero key material before freeing */
         memset(cc, 0, sizeof(*cc) + cc->key_size * sizeof(u8));
         kfree(cc);
@@ -892,7 +935,8 @@ static void crypt_dtr(struct dm_target *ti)
 {
         struct crypt_config *cc = (struct crypt_config *) ti->private;
 
-        flush_workqueue(_kcryptd_workqueue);
+        destroy_workqueue(cc->io_queue);
+        destroy_workqueue(cc->crypt_queue);
 
         bioset_free(cc->bs);
         mempool_destroy(cc->page_pool);
@@ -918,9 +962,13 @@ static int crypt_map(struct dm_target *ti, struct bio *bio,
         io = mempool_alloc(cc->io_pool, GFP_NOIO);
         io->target = ti;
         io->base_bio = bio;
-        io->error = io->post_process = 0;
+        io->error = 0;
         atomic_set(&io->pending, 0);
-        kcryptd_queue_io(io);
+
+        if (bio_data_dir(io->base_bio) == READ)
+                kcryptd_queue_io(io);
+        else
+                kcryptd_queue_crypt(io);
 
         return DM_MAPIO_SUBMITTED;
 }
@@ -1037,25 +1085,12 @@ static int __init dm_crypt_init(void)
         if (!_crypt_io_pool)
                 return -ENOMEM;
 
-        _kcryptd_workqueue = create_workqueue("kcryptd");
-        if (!_kcryptd_workqueue) {
-                r = -ENOMEM;
-                DMERR("couldn't create kcryptd");
-                goto bad1;
-        }
-
         r = dm_register_target(&crypt_target);
         if (r < 0) {
                 DMERR("register failed %d", r);
-                goto bad2;
+                kmem_cache_destroy(_crypt_io_pool);
         }
 
-        return 0;
-
-bad2:
-        destroy_workqueue(_kcryptd_workqueue);
-bad1:
-        kmem_cache_destroy(_crypt_io_pool);
         return r;
 }
 
@@ -1066,7 +1101,6 @@ static void __exit dm_crypt_exit(void)
         if (r < 0)
                 DMERR("unregister failed %d", r);
 
-        destroy_workqueue(_kcryptd_workqueue);
         kmem_cache_destroy(_crypt_io_pool);
 }
 
diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c
index 6928c136d3c5..bdd37f881c42 100644
--- a/drivers/md/dm-delay.c
+++ b/drivers/md/dm-delay.c
@@ -83,7 +83,7 @@ static struct bio *flush_delayed_bios(struct delay_c *dc, int flush_all)
         struct dm_delay_info *delayed, *next;
         unsigned long next_expires = 0;
         int start_timer = 0;
-        BIO_LIST(flush_bios);
+        struct bio_list flush_bios = { };
 
         mutex_lock(&delayed_bios_lock);
         list_for_each_entry_safe(delayed, next, &dc->delayed_bios, list) {
@@ -163,34 +163,32 @@ static int delay_ctr(struct dm_target *ti, unsigned int argc, char **argv)
                 goto bad;
         }
 
-        if (argc == 3) {
-                dc->dev_write = NULL;
+        dc->dev_write = NULL;
+        if (argc == 3)
                 goto out;
-        }
 
         if (sscanf(argv[4], "%llu", &tmpll) != 1) {
                 ti->error = "Invalid write device sector";
-                goto bad;
+                goto bad_dev_read;
         }
         dc->start_write = tmpll;
 
         if (sscanf(argv[5], "%u", &dc->write_delay) != 1) {
                 ti->error = "Invalid write delay";
-                goto bad;
+                goto bad_dev_read;
         }
 
         if (dm_get_device(ti, argv[3], dc->start_write, ti->len,
                           dm_table_get_mode(ti->table), &dc->dev_write)) {
                 ti->error = "Write device lookup failed";
-                dm_put_device(ti, dc->dev_read);
-                goto bad;
+                goto bad_dev_read;
         }
 
 out:
         dc->delayed_pool = mempool_create_slab_pool(128, delayed_cache);
         if (!dc->delayed_pool) {
                 DMERR("Couldn't create delayed bio pool.");
-                goto bad;
+                goto bad_dev_write;
         }
 
         setup_timer(&dc->delay_timer, handle_delayed_timer, (unsigned long)dc);
@@ -203,6 +201,11 @@ out:
         ti->private = dc;
         return 0;
 
+bad_dev_write:
+        if (dc->dev_write)
+                dm_put_device(ti, dc->dev_write);
+bad_dev_read:
+        dm_put_device(ti, dc->dev_read);
 bad:
         kfree(dc);
         return -EINVAL;
@@ -305,7 +308,7 @@ static int delay_status(struct dm_target *ti, status_type_t type,
                        (unsigned long long) dc->start_read,
                        dc->read_delay);
                 if (dc->dev_write)
-                        DMEMIT("%s %llu %u", dc->dev_write->name,
+                        DMEMIT(" %s %llu %u", dc->dev_write->name,
                                (unsigned long long) dc->start_write,
                                dc->write_delay);
                 break;
diff --git a/drivers/md/dm-emc.c b/drivers/md/dm-emc.c
index 342517261ece..6b91b9ab1d41 100644
--- a/drivers/md/dm-emc.c
+++ b/drivers/md/dm-emc.c
@@ -81,7 +81,7 @@ static struct bio *get_failover_bio(struct dm_path *path, unsigned data_size)
         }
 
         if (bio_add_page(bio, page, data_size, 0) != data_size) {
-                DMERR("get_failover_bio: alloc_page() failed.");
+                DMERR("get_failover_bio: bio_add_page() failed.");
                 __free_page(page);
                 bio_put(bio);
                 return NULL;
@@ -211,12 +211,10 @@ fail_path:
 
 static struct emc_handler *alloc_emc_handler(void)
 {
-        struct emc_handler *h = kmalloc(sizeof(*h), GFP_KERNEL);
+        struct emc_handler *h = kzalloc(sizeof(*h), GFP_KERNEL);
 
-        if (h) {
-                memset(h, 0, sizeof(*h));
+        if (h)
                 spin_lock_init(&h->lock);
-        }
 
         return h;
 }
diff --git a/drivers/md/dm-hw-handler.c b/drivers/md/dm-hw-handler.c
index baafaaba4d4b..2ee84d8aa0bf 100644
--- a/drivers/md/dm-hw-handler.c
+++ b/drivers/md/dm-hw-handler.c
@@ -91,12 +91,10 @@ void dm_put_hw_handler(struct hw_handler_type *hwht)
 
 static struct hwh_internal *_alloc_hw_handler(struct hw_handler_type *hwht)
 {
-        struct hwh_internal *hwhi = kmalloc(sizeof(*hwhi), GFP_KERNEL);
+        struct hwh_internal *hwhi = kzalloc(sizeof(*hwhi), GFP_KERNEL);
 
-        if (hwhi) {
-                memset(hwhi, 0, sizeof(*hwhi));
+        if (hwhi)
                 hwhi->hwht = *hwht;
-        }
 
         return hwhi;
 }
diff --git a/drivers/md/dm-hw-handler.h b/drivers/md/dm-hw-handler.h
index e0832e6fcf36..46809dcb121a 100644
--- a/drivers/md/dm-hw-handler.h
+++ b/drivers/md/dm-hw-handler.h
@@ -58,5 +58,6 @@ unsigned dm_scsi_err_handler(struct hw_handler *hwh, struct bio *bio);
 #define MP_FAIL_PATH 1
 #define MP_BYPASS_PG 2
 #define MP_ERROR_IO  4  /* Don't retry this I/O */
+#define MP_RETRY 8
 
 #endif
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index b441d82c338a..138200bf5e0b 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -700,7 +700,7 @@ static int dev_rename(struct dm_ioctl *param, size_t param_size)
         int r;
         char *new_name = (char *) param + param->data_start;
 
-        if (new_name < (char *) (param + 1) ||
+        if (new_name < (char *) param->data ||
             invalid_str(new_name, (void *) param + param_size)) {
                 DMWARN("Invalid new logical volume name supplied.");
                 return -EINVAL;
@@ -726,7 +726,7 @@ static int dev_set_geometry(struct dm_ioctl *param, size_t param_size)
         if (!md)
                 return -ENXIO;
 
-        if (geostr < (char *) (param + 1) ||
+        if (geostr < (char *) param->data ||
             invalid_str(geostr, (void *) param + param_size)) {
                 DMWARN("Invalid geometry supplied.");
                 goto out;
@@ -1233,7 +1233,7 @@ static int target_message(struct dm_ioctl *param, size_t param_size)
         if (r)
                 goto out;
 
-        if (tmsg < (struct dm_target_msg *) (param + 1) ||
+        if (tmsg < (struct dm_target_msg *) param->data ||
             invalid_str(tmsg->message, (void *) param + param_size)) {
                 DMWARN("Invalid target message parameters.");
                 r = -EINVAL;
@@ -1358,7 +1358,7 @@ static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl **param)
         if (tmp.data_size < sizeof(tmp))
                 return -EINVAL;
 
-        dmi = (struct dm_ioctl *) vmalloc(tmp.data_size);
+        dmi = vmalloc(tmp.data_size);
         if (!dmi)
                 return -ENOMEM;
 
@@ -1515,3 +1515,35 @@ void dm_interface_exit(void)
 
         dm_hash_exit();
 }
+
+/**
+ * dm_copy_name_and_uuid - Copy mapped device name & uuid into supplied buffers
+ * @md: Pointer to mapped_device
+ * @name: Buffer (size DM_NAME_LEN) for name
+ * @uuid: Buffer (size DM_UUID_LEN) for uuid or empty string if uuid not defined
+ */
+int dm_copy_name_and_uuid(struct mapped_device *md, char *name, char *uuid)
+{
+        int r = 0;
+        struct hash_cell *hc;
+
+        if (!md)
+                return -ENXIO;
+
+        dm_get(md);
+        down_read(&_hash_lock);
+        hc = dm_get_mdptr(md);
+        if (!hc || hc->md != md) {
+                r = -ENXIO;
+                goto out;
+        }
+
+        strcpy(name, hc->name);
+        strcpy(uuid, hc->uuid ? : "");
+
+out:
+        up_read(&_hash_lock);
+        dm_put(md);
+
+        return r;
+}
diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c
index a66428d860fe..072ee4353eab 100644
--- a/drivers/md/dm-log.c
+++ b/drivers/md/dm-log.c
@@ -696,7 +696,7 @@ static struct dirty_log_type _disk_type = {
         .module = THIS_MODULE,
         .ctr = disk_ctr,
         .dtr = disk_dtr,
-        .suspend = disk_flush,
+        .postsuspend = disk_flush,
         .resume = disk_resume,
         .get_region_size = core_get_region_size,
         .is_clean = core_is_clean,
diff --git a/drivers/md/dm-log.h b/drivers/md/dm-log.h
index 86a301c8daf1..3fae87eb5963 100644
--- a/drivers/md/dm-log.h
+++ b/drivers/md/dm-log.h
@@ -32,7 +32,8 @@ struct dirty_log_type {
          * There are times when we don't want the log to touch
          * the disk.
          */
-        int (*suspend)(struct dirty_log *log);
+        int (*presuspend)(struct dirty_log *log);
+        int (*postsuspend)(struct dirty_log *log);
         int (*resume)(struct dirty_log *log);
 
         /*
diff --git a/drivers/md/dm-mpath-hp-sw.c b/drivers/md/dm-mpath-hp-sw.c
new file mode 100644
index 000000000000..204bf42c9449
--- /dev/null
+++ b/drivers/md/dm-mpath-hp-sw.c
@@ -0,0 +1,248 @@
+/*
+ * Copyright (C) 2005 Mike Christie, All rights reserved.
+ * Copyright (C) 2007 Red Hat, Inc. All rights reserved.
+ * Authors: Mike Christie
+ *          Dave Wysochanski
+ *
+ * This file is released under the GPL.
+ *
+ * This module implements the specific path activation code for
+ * HP StorageWorks and FSC FibreCat Asymmetric (Active/Passive)
+ * storage arrays.
+ * These storage arrays have controller-based failover, not
+ * LUN-based failover.  However, LUN-based failover is the design
+ * of dm-multipath. Thus, this module is written for LUN-based failover.
+ */
+#include <linux/blkdev.h>
+#include <linux/list.h>
+#include <linux/types.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_dbg.h>
+
+#include "dm.h"
+#include "dm-hw-handler.h"
+
+#define DM_MSG_PREFIX "multipath hp-sw"
+#define DM_HP_HWH_NAME "hp-sw"
+#define DM_HP_HWH_VER "1.0.0"
+
+struct hp_sw_context {
+        unsigned char sense[SCSI_SENSE_BUFFERSIZE];
+};
+
+/*
+ * hp_sw_error_is_retryable - Is an HP-specific check condition retryable?
+ * @req: path activation request
+ *
+ * Examine error codes of request and determine whether the error is retryable.
+ * Some error codes are already retried by scsi-ml (see
+ * scsi_decide_disposition), but some HP specific codes are not.
+ * The intent of this routine is to supply the logic for the HP specific
+ * check conditions.
+ *
+ * Returns:
+ *  1 - command completed with retryable error
+ *  0 - command completed with non-retryable error
+ *
+ * Possible optimizations
+ * 1. More hardware-specific error codes
+ */
+static int hp_sw_error_is_retryable(struct request *req)
+{
+        /*
+         * NOT_READY is known to be retryable
+         * For now we just dump out the sense data and call it retryable
+         */
+        if (status_byte(req->errors) == CHECK_CONDITION)
+                __scsi_print_sense(DM_HP_HWH_NAME, req->sense, req->sense_len);
+
+        /*
+         * At this point we don't have complete information about all the error
+         * codes from this hardware, so we are just conservative and retry
+         * when in doubt.
+         */
+        return 1;
+}
+
+/*
+ * hp_sw_end_io - Completion handler for HP path activation.
+ * @req: path activation request
+ * @error: scsi-ml error
+ *
+ *  Check sense data, free request structure, and notify dm that
+ *  pg initialization has completed.
+ *
+ * Context: scsi-ml softirq
+ *
+ */
+static void hp_sw_end_io(struct request *req, int error)
+{
+        struct dm_path *path = req->end_io_data;
+        unsigned err_flags = 0;
+
+        if (!error) {
+                DMDEBUG("%s path activation command - success",
+                        path->dev->name);
+                goto out;
+        }
+
+        if (hp_sw_error_is_retryable(req)) {
+                DMDEBUG("%s path activation command - retry",
+                        path->dev->name);
+                err_flags = MP_RETRY;
+                goto out;
+        }
+
+        DMWARN("%s path activation fail - error=0x%x",
+               path->dev->name, error);
+        err_flags = MP_FAIL_PATH;
+
+out:
+        req->end_io_data = NULL;
+        __blk_put_request(req->q, req);
+        dm_pg_init_complete(path, err_flags);
+}
+
+/*
+ * hp_sw_get_request - Allocate an HP specific path activation request
+ * @path: path on which request will be sent (needed for request queue)
+ *
+ * The START command is used for path activation request.
+ * These arrays are controller-based failover, not LUN based.
+ * One START command issued to a single path will fail over all
+ * LUNs for the same controller.
+ *
+ * Possible optimizations
+ * 1. Make timeout configurable
+ * 2. Preallocate request
+ */
+static struct request *hp_sw_get_request(struct dm_path *path)
+{
+        struct request *req;
+        struct block_device *bdev = path->dev->bdev;
+        struct request_queue *q = bdev_get_queue(bdev);
+        struct hp_sw_context *h = path->hwhcontext;
+
+        req = blk_get_request(q, WRITE, GFP_NOIO);
+        if (!req)
+                goto out;
+
+        req->timeout = 60 * HZ;
+
+        req->errors = 0;
+        req->cmd_type = REQ_TYPE_BLOCK_PC;
+        req->cmd_flags |= REQ_FAILFAST | REQ_NOMERGE;
+        req->end_io_data = path;
+        req->sense = h->sense;
+        memset(req->sense, 0, SCSI_SENSE_BUFFERSIZE);
+
+        memset(&req->cmd, 0, BLK_MAX_CDB);
+        req->cmd[0] = START_STOP;
+        req->cmd[4] = 1;
+        req->cmd_len = COMMAND_SIZE(req->cmd[0]);
+
+out:
+        return req;
+}
+
+/*
+ * hp_sw_pg_init - HP path activation implementation.
+ * @hwh: hardware handler specific data
+ * @bypassed: unused; is the path group bypassed? (see dm-mpath.c)
+ * @path: path to send initialization command
+ *
+ * Send an HP-specific path activation command on 'path'.
+ * Do not try to optimize in any way, just send the activation command.
+ * More than one path activation command may be sent to the same controller.
+ * This seems to work fine for basic failover support.
+ *
+ * Possible optimizations
+ * 1. Detect an in-progress activation request and avoid submitting another one
+ * 2. Model the controller and only send a single activation request at a time
+ * 3. Determine the state of a path before sending an activation request
+ *
+ * Context: kmpathd (see process_queued_ios() in dm-mpath.c)
+ */
+static void hp_sw_pg_init(struct hw_handler *hwh, unsigned bypassed,
+                          struct dm_path *path)
+{
+        struct request *req;
+        struct hp_sw_context *h;
+
+        path->hwhcontext = hwh->context;
+        h = hwh->context;
+
+        req = hp_sw_get_request(path);
+        if (!req) {
+                DMERR("%s path activation command - allocation fail",
+                      path->dev->name);
+                goto retry;
+        }
+
+        DMDEBUG("%s path activation command - sent", path->dev->name);
+
+        blk_execute_rq_nowait(req->q, NULL, req, 1, hp_sw_end_io);
+        return;
+
+retry:
+        dm_pg_init_complete(path, MP_RETRY);
+}
+
+static int hp_sw_create(struct hw_handler *hwh, unsigned argc, char **argv)
+{
+        struct hp_sw_context *h;
+
+        h = kmalloc(sizeof(*h), GFP_KERNEL);
+        if (!h)
+                return -ENOMEM;
+
+        hwh->context = h;
+
+        return 0;
+}
+
+static void hp_sw_destroy(struct hw_handler *hwh)
+{
+        struct hp_sw_context *h = hwh->context;
+
+        kfree(h);
+}
+
+static struct hw_handler_type hp_sw_hwh = {
+        .name = DM_HP_HWH_NAME,
+        .module = THIS_MODULE,
+        .create = hp_sw_create,
+        .destroy = hp_sw_destroy,
+        .pg_init = hp_sw_pg_init,
+};
+
+static int __init hp_sw_init(void)
+{
+        int r;
+
+        r = dm_register_hw_handler(&hp_sw_hwh);
+        if (r < 0)
+                DMERR("register failed %d", r);
+        else
+                DMINFO("version " DM_HP_HWH_VER " loaded");
+
+        return r;
+}
+
+static void __exit hp_sw_exit(void)
+{
+        int r;
+
+        r = dm_unregister_hw_handler(&hp_sw_hwh);
+        if (r < 0)
+                DMERR("unregister failed %d", r);
+}
+
+module_init(hp_sw_init);
+module_exit(hp_sw_exit);
+
+MODULE_DESCRIPTION("DM Multipath HP StorageWorks / FSC FibreCat (A/P) support");
+MODULE_AUTHOR("Mike Christie, Dave Wysochanski <dm-devel@redhat.com>");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DM_HP_HWH_VER);
diff --git a/drivers/md/dm-mpath-rdac.c b/drivers/md/dm-mpath-rdac.c
index 16b161345775..e04eb5c697fb 100644
--- a/drivers/md/dm-mpath-rdac.c
+++ b/drivers/md/dm-mpath-rdac.c
@@ -664,20 +664,21 @@ static struct hw_handler_type rdac_handler = {
 
 static int __init rdac_init(void)
 {
-        int r = dm_register_hw_handler(&rdac_handler);
-
-        if (r < 0) {
-                DMERR("%s: register failed %d", RDAC_DM_HWH_NAME, r);
-                return r;
-        }
+        int r;
 
         rdac_wkqd = create_singlethread_workqueue("rdac_wkqd");
         if (!rdac_wkqd) {
                 DMERR("Failed to create workqueue rdac_wkqd.");
-                dm_unregister_hw_handler(&rdac_handler);
                 return -ENOMEM;
         }
 
+        r = dm_register_hw_handler(&rdac_handler);
+        if (r < 0) {
+                DMERR("%s: register failed %d", RDAC_DM_HWH_NAME, r);
+                destroy_workqueue(rdac_wkqd);
+                return r;
+        }
+
         DMINFO("%s: version %s loaded", RDAC_DM_HWH_NAME, RDAC_DM_HWH_VER);
         return 0;
 }
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 31056abca89d..24b2b1e32fae 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -10,6 +10,7 @@
 #include "dm-hw-handler.h"
 #include "dm-bio-list.h"
 #include "dm-bio-record.h"
+#include "dm-uevent.h"
 
 #include <linux/ctype.h>
 #include <linux/init.h>
@@ -75,6 +76,8 @@ struct multipath {
         unsigned queue_io;              /* Must we queue all I/O? */
         unsigned queue_if_no_path;      /* Queue I/O if last path fails? */
         unsigned saved_queue_if_no_path;/* Saved state during suspension */
+        unsigned pg_init_retries;       /* Number of times to retry pg_init */
+        unsigned pg_init_count;         /* Number of times pg_init called */
 
         struct work_struct process_queued_ios;
         struct bio_list queued_ios;
@@ -225,6 +228,8 @@ static void __switch_pg(struct multipath *m, struct pgpath *pgpath)
                 m->pg_init_required = 0;
                 m->queue_io = 0;
         }
+
+        m->pg_init_count = 0;
 }
 
 static int __choose_path_in_pg(struct multipath *m, struct priority_group *pg)
@@ -424,6 +429,7 @@ static void process_queued_ios(struct work_struct *work)
                 must_queue = 0;
 
         if (m->pg_init_required && !m->pg_init_in_progress) {
+                m->pg_init_count++;
                 m->pg_init_required = 0;
                 m->pg_init_in_progress = 1;
                 init_required = 1;
@@ -689,9 +695,11 @@ static int parse_features(struct arg_set *as, struct multipath *m)
         int r;
         unsigned argc;
         struct dm_target *ti = m->ti;
+        const char *param_name;
 
         static struct param _params[] = {
-                {0, 1, "invalid number of feature args"},
+                {0, 3, "invalid number of feature args"},
+                {1, 50, "pg_init_retries must be between 1 and 50"},
         };
 
         r = read_param(_params, shift(as), &argc, &ti->error);
@@ -701,12 +709,28 @@ static int parse_features(struct arg_set *as, struct multipath *m)
         if (!argc)
                 return 0;
 
-        if (!strnicmp(shift(as), MESG_STR("queue_if_no_path")))
-                return queue_if_no_path(m, 1, 0);
-        else {
+        do {
+                param_name = shift(as);
+                argc--;
+
+                if (!strnicmp(param_name, MESG_STR("queue_if_no_path"))) {
+                        r = queue_if_no_path(m, 1, 0);
+                        continue;
+                }
+
+                if (!strnicmp(param_name, MESG_STR("pg_init_retries")) &&
+                    (argc >= 1)) {
+                        r = read_param(_params + 1, shift(as),
+                                       &m->pg_init_retries, &ti->error);
+                        argc--;
+                        continue;
+                }
+
                 ti->error = "Unrecognised multipath feature request";
-                return -EINVAL;
-        }
+                r = -EINVAL;
+        } while (argc && !r);
+
+        return r;
 }
 
 static int multipath_ctr(struct dm_target *ti, unsigned int argc,
@@ -834,6 +858,9 @@ static int fail_path(struct pgpath *pgpath)
         if (pgpath == m->current_pgpath)
                 m->current_pgpath = NULL;
 
+        dm_path_uevent(DM_UEVENT_PATH_FAILED, m->ti,
+                      pgpath->path.dev->name, m->nr_valid_paths);
+
         queue_work(kmultipathd, &m->trigger_event);
 
 out:
@@ -873,6 +900,9 @@ static int reinstate_path(struct pgpath *pgpath)
         if (!m->nr_valid_paths++ && m->queue_size)
                 queue_work(kmultipathd, &m->process_queued_ios);
 
+        dm_path_uevent(DM_UEVENT_PATH_REINSTATED, m->ti,
+                      pgpath->path.dev->name, m->nr_valid_paths);
+
         queue_work(kmultipathd, &m->trigger_event);
 
 out:
@@ -976,6 +1006,26 @@ static int bypass_pg_num(struct multipath *m, const char *pgstr, int bypassed)
 }
 
 /*
+ * Should we retry pg_init immediately?
+ */
+static int pg_init_limit_reached(struct multipath *m, struct pgpath *pgpath)
+{
+        unsigned long flags;
+        int limit_reached = 0;
+
+        spin_lock_irqsave(&m->lock, flags);
+
+        if (m->pg_init_count <= m->pg_init_retries)
+                m->pg_init_required = 1;
+        else
+                limit_reached = 1;
+
+        spin_unlock_irqrestore(&m->lock, flags);
+
+        return limit_reached;
+}
+
+/*
  * pg_init must call this when it has completed its initialisation
  */
 void dm_pg_init_complete(struct dm_path *path, unsigned err_flags)
@@ -985,8 +1035,14 @@ void dm_pg_init_complete(struct dm_path *path, unsigned err_flags)
         struct multipath *m = pg->m;
         unsigned long flags;
 
-        /* We insist on failing the path if the PG is already bypassed. */
-        if (err_flags && pg->bypassed)
+        /*
+         * If requested, retry pg_init until maximum number of retries exceeded.
+         * If retry not requested and PG already bypassed, always fail the path.
+         */
+        if (err_flags & MP_RETRY) {
+                if (pg_init_limit_reached(m, pgpath))
+                        err_flags |= MP_FAIL_PATH;
+        } else if (err_flags && pg->bypassed)
                 err_flags |= MP_FAIL_PATH;
 
         if (err_flags & MP_FAIL_PATH)
@@ -996,7 +1052,7 @@ void dm_pg_init_complete(struct dm_path *path, unsigned err_flags)
                 bypass_pg(m, pg, 1);
 
         spin_lock_irqsave(&m->lock, flags);
-        if (err_flags) {
+        if (err_flags & ~MP_RETRY) {
                 m->current_pgpath = NULL;
                 m->current_pg = NULL;
         } else if (!m->pg_init_required)
@@ -1148,11 +1204,15 @@ static int multipath_status(struct dm_target *ti, status_type_t type,
 
         /* Features */
         if (type == STATUSTYPE_INFO)
-                DMEMIT("1 %u ", m->queue_size);
-        else if (m->queue_if_no_path)
-                DMEMIT("1 queue_if_no_path ");
-        else
-                DMEMIT("0 ");
+                DMEMIT("2 %u %u ", m->queue_size, m->pg_init_count);
+        else {
+                DMEMIT("%u ", m->queue_if_no_path +
+                              (m->pg_init_retries > 0) * 2);
+                if (m->queue_if_no_path)
+                        DMEMIT("queue_if_no_path ");
+                if (m->pg_init_retries)
+                        DMEMIT("pg_init_retries %u ", m->pg_init_retries);
+        }
 
         if (hwh->type && hwh->type->status)
                 sz += hwh->type->status(hwh, type, result + sz, maxlen - sz);
diff --git a/drivers/md/dm-path-selector.c b/drivers/md/dm-path-selector.c
index f10a0c89b3f4..ca1bb636a3e4 100644
--- a/drivers/md/dm-path-selector.c
+++ b/drivers/md/dm-path-selector.c
@@ -94,12 +94,10 @@ out:
 
 static struct ps_internal *_alloc_path_selector(struct path_selector_type *pst)
 {
-        struct ps_internal *psi = kmalloc(sizeof(*psi), GFP_KERNEL);
+        struct ps_internal *psi = kzalloc(sizeof(*psi), GFP_KERNEL);
 
-        if (psi) {
-                memset(psi, 0, sizeof(*psi));
+        if (psi)
                 psi->pst = *pst;
-        }
 
         return psi;
 }
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index d09ff15490a5..31123d4a6b9c 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -19,6 +19,7 @@
 #include <linux/time.h>
 #include <linux/vmalloc.h>
 #include <linux/workqueue.h>
+#include <linux/log2.h>
 
 #define DM_MSG_PREFIX "raid1"
 #define DM_IO_PAGES 64
@@ -113,6 +114,7 @@ struct region {
  * Mirror set structures.
  *---------------------------------------------------------------*/
 struct mirror {
+        struct mirror_set *ms;
         atomic_t error_count;
         struct dm_dev *dev;
         sector_t offset;
@@ -974,6 +976,7 @@ static struct mirror_set *alloc_context(unsigned int nr_mirrors,
 
         if (rh_init(&ms->rh, ms, dl, region_size, ms->nr_regions)) {
                 ti->error = "Error creating dirty region hash";
+                dm_io_client_destroy(ms->io_client);
                 kfree(ms);
                 return NULL;
         }
@@ -994,7 +997,7 @@ static void free_context(struct mirror_set *ms, struct dm_target *ti,
 
 static inline int _check_region_size(struct dm_target *ti, uint32_t size)
 {
-        return !(size % (PAGE_SIZE >> 9) || (size & (size - 1)) ||
+        return !(size % (PAGE_SIZE >> 9) || !is_power_of_2(size) ||
                  size > ti->len);
 }
 
@@ -1015,6 +1018,7 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
                 return -ENXIO;
         }
 
+        ms->mirror[mirror].ms = ms;
         ms->mirror[mirror].offset = offset;
 
         return 0;
@@ -1163,16 +1167,14 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
         ms->kmirrord_wq = create_singlethread_workqueue("kmirrord");
         if (!ms->kmirrord_wq) {
                 DMERR("couldn't start kmirrord");
-                free_context(ms, ti, m);
-                return -ENOMEM;
+                r = -ENOMEM;
+                goto err_free_context;
         }
         INIT_WORK(&ms->kmirrord_work, do_mirror);
 
         r = parse_features(ms, argc, argv, &args_used);
-        if (r) {
-                free_context(ms, ti, ms->nr_mirrors);
-                return r;
-        }
+        if (r)
+                goto err_destroy_wq;
 
         argv += args_used;
         argc -= args_used;
@@ -1188,19 +1190,22 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 
         if (argc) {
                 ti->error = "Too many mirror arguments";
-                free_context(ms, ti, ms->nr_mirrors);
-                return -EINVAL;
+                r = -EINVAL;
+                goto err_destroy_wq;
         }
 
         r = kcopyd_client_create(DM_IO_PAGES, &ms->kcopyd_client);
-        if (r) {
-                destroy_workqueue(ms->kmirrord_wq);
-                free_context(ms, ti, ms->nr_mirrors);
-                return r;
-        }
+        if (r)
+                goto err_destroy_wq;
 
         wake(ms);
         return 0;
+
+err_destroy_wq:
+        destroy_workqueue(ms->kmirrord_wq);
+err_free_context:
+        free_context(ms, ti, ms->nr_mirrors);
+        return r;
 }
 
 static void mirror_dtr(struct dm_target *ti)
@@ -1302,7 +1307,7 @@ static void mirror_postsuspend(struct dm_target *ti)
         wait_event(_kmirrord_recovery_stopped,
                    !atomic_read(&ms->rh.recovery_in_flight));
 
-        if (log->type->suspend && log->type->suspend(log))
+        if (log->type->postsuspend && log->type->postsuspend(log))
                 /* FIXME: need better error handling */
                 DMWARN("log suspend failed");
 }
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 98a633f3d6b0..cee16fadd9ee 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
+#include <linux/log2.h>
 
 #include "dm-snap.h"
 #include "dm-bio-list.h"
@@ -415,7 +416,7 @@ static int set_chunk_size(struct dm_snapshot *s, const char *chunk_size_arg,
         chunk_size = round_up(chunk_size, PAGE_SIZE >> 9);
 
         /* Check chunk_size is a power of 2 */
-        if (chunk_size & (chunk_size - 1)) {
+        if (!is_power_of_2(chunk_size)) {
                 *error = "Chunk size is not a power of 2";
                 return -EINVAL;
         }
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index 51f5e0760012..969944a8aba2 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -11,6 +11,7 @@
 #include <linux/blkdev.h>
 #include <linux/bio.h>
 #include <linux/slab.h>
+#include <linux/log2.h>
 
 #define DM_MSG_PREFIX "striped"
 
@@ -99,7 +100,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
         /*
          * chunk_size is a power of two
          */
-        if (!chunk_size || (chunk_size & (chunk_size - 1)) ||
+        if (!is_power_of_2(chunk_size) ||
             (chunk_size < (PAGE_SIZE >> SECTOR_SHIFT))) {
                 ti->error = "Invalid chunk size";
                 return -EINVAL;
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index fbe477bb2c68..8939e6105088 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -213,12 +213,11 @@ static int alloc_targets(struct dm_table *t, unsigned int num)
 int dm_table_create(struct dm_table **result, int mode,
                     unsigned num_targets, struct mapped_device *md)
 {
-        struct dm_table *t = kmalloc(sizeof(*t), GFP_KERNEL);
+        struct dm_table *t = kzalloc(sizeof(*t), GFP_KERNEL);
 
         if (!t)
                 return -ENOMEM;
 
-        memset(t, 0, sizeof(*t));
         INIT_LIST_HEAD(&t->devices);
         atomic_set(&t->holders, 1);
 
diff --git a/drivers/md/dm-target.c b/drivers/md/dm-target.c
index 477a041a41cf..835cf95b857f 100644
--- a/drivers/md/dm-target.c
+++ b/drivers/md/dm-target.c
@@ -88,12 +88,10 @@ void dm_put_target_type(struct target_type *t)
 
 static struct tt_internal *alloc_target(struct target_type *t)
 {
-        struct tt_internal *ti = kmalloc(sizeof(*ti), GFP_KERNEL);
+        struct tt_internal *ti = kzalloc(sizeof(*ti), GFP_KERNEL);
 
-        if (ti) {
-                memset(ti, 0, sizeof(*ti));
+        if (ti)
                 ti->tt = *t;
-        }
 
         return ti;
 }
diff --git a/drivers/md/dm-uevent.c b/drivers/md/dm-uevent.c
new file mode 100644
index 000000000000..50377e5dc2a3
--- /dev/null
+++ b/drivers/md/dm-uevent.c
@@ -0,0 +1,222 @@
+/*
+ * Device Mapper Uevent Support (dm-uevent)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright IBM Corporation, 2007
+ *      Author: Mike Anderson <andmike@linux.vnet.ibm.com>
+ */
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/kobject.h>
+#include <linux/dm-ioctl.h>
+
+#include "dm.h"
+#include "dm-uevent.h"
+
+#define DM_MSG_PREFIX "uevent"
+
+static const struct {
+        enum dm_uevent_type type;
+        enum kobject_action action;
+        char *name;
+} _dm_uevent_type_names[] = {
+        {DM_UEVENT_PATH_FAILED, KOBJ_CHANGE, "PATH_FAILED"},
+        {DM_UEVENT_PATH_REINSTATED, KOBJ_CHANGE, "PATH_REINSTATED"},
+};
+
+static struct kmem_cache *_dm_event_cache;
+
+struct dm_uevent {
+        struct mapped_device *md;
+        enum kobject_action action;
+        struct kobj_uevent_env ku_env;
+        struct list_head elist;
+        char name[DM_NAME_LEN];
+        char uuid[DM_UUID_LEN];
+};
+
+static void dm_uevent_free(struct dm_uevent *event)
+{
+        kmem_cache_free(_dm_event_cache, event);
+}
+
+static struct dm_uevent *dm_uevent_alloc(struct mapped_device *md)
+{
+        struct dm_uevent *event;
+
+        event = kmem_cache_zalloc(_dm_event_cache, GFP_ATOMIC);
+        if (!event)
+                return NULL;
+
+        INIT_LIST_HEAD(&event->elist);
+        event->md = md;
+
+        return event;
+}
+
+static struct dm_uevent *dm_build_path_uevent(struct mapped_device *md,
+                                              struct dm_target *ti,
+                                              enum kobject_action action,
+                                              const char *dm_action,
+                                              const char *path,
+                                              unsigned nr_valid_paths)
+{
+        struct dm_uevent *event;
+
+        event = dm_uevent_alloc(md);
+        if (!event) {
+                DMERR("%s: dm_uevent_alloc() failed", __FUNCTION__);
+                goto err_nomem;
+        }
+
+        event->action = action;
+
+        if (add_uevent_var(&event->ku_env, "DM_TARGET=%s", ti->type->name)) {
+                DMERR("%s: add_uevent_var() for DM_TARGET failed",
+                      __FUNCTION__);
+                goto err_add;
+        }
+
+        if (add_uevent_var(&event->ku_env, "DM_ACTION=%s", dm_action)) {
+                DMERR("%s: add_uevent_var() for DM_ACTION failed",
+                      __FUNCTION__);
+                goto err_add;
+        }
+
+        if (add_uevent_var(&event->ku_env, "DM_SEQNUM=%u",
+                           dm_next_uevent_seq(md))) {
+                DMERR("%s: add_uevent_var() for DM_SEQNUM failed",
+                      __FUNCTION__);
+                goto err_add;
+        }
+
+        if (add_uevent_var(&event->ku_env, "DM_PATH=%s", path)) {
+                DMERR("%s: add_uevent_var() for DM_PATH failed", __FUNCTION__);
+                goto err_add;
+        }
+
+        if (add_uevent_var(&event->ku_env, "DM_NR_VALID_PATHS=%d",
+                           nr_valid_paths)) {
+                DMERR("%s: add_uevent_var() for DM_NR_VALID_PATHS failed",
+                      __FUNCTION__);
+                goto err_add;
+        }
+
+        return event;
+
+err_add:
+        dm_uevent_free(event);
+err_nomem:
+        return ERR_PTR(-ENOMEM);
+}
+
+/**
+ * dm_send_uevents - send uevents for given list
+ *
+ * @events:     list of events to send
+ * @kobj:       kobject generating event
+ *
+ */
+void dm_send_uevents(struct list_head *events, struct kobject *kobj)
+{
+        int r;
+        struct dm_uevent *event, *next;
+
+        list_for_each_entry_safe(event, next, events, elist) {
+                list_del_init(&event->elist);
+
+                /*
+                 * Need to call dm_copy_name_and_uuid from here for now.
+                 * Context of previous var adds and locking used for
+                 * hash_cell not compatable.
+                 */
+                if (dm_copy_name_and_uuid(event->md, event->name,
+                                          event->uuid)) {
+                        DMERR("%s: dm_copy_name_and_uuid() failed",
+                              __FUNCTION__);
+                        goto uevent_free;
+                }
+
+                if (add_uevent_var(&event->ku_env, "DM_NAME=%s", event->name)) {
+                        DMERR("%s: add_uevent_var() for DM_NAME failed",
+                              __FUNCTION__);
+                        goto uevent_free;
+                }
+
+                if (add_uevent_var(&event->ku_env, "DM_UUID=%s", event->uuid)) {
+                        DMERR("%s: add_uevent_var() for DM_UUID failed",
+                              __FUNCTION__);
+                        goto uevent_free;
+                }
+
+                r = kobject_uevent_env(kobj, event->action, event->ku_env.envp);
+                if (r)
+                        DMERR("%s: kobject_uevent_env failed", __FUNCTION__);
+uevent_free:
+                dm_uevent_free(event);
+        }
+}
+EXPORT_SYMBOL_GPL(dm_send_uevents);
+
+/**
+ * dm_path_uevent - called to create a new path event and queue it
+ *
+ * @event_type: path event type enum
+ * @ti:                 pointer to a dm_target
+ * @path:               string containing pathname
+ * @nr_valid_paths:     number of valid paths remaining
+ *
+ */
+void dm_path_uevent(enum dm_uevent_type event_type, struct dm_target *ti,
+                   const char *path, unsigned nr_valid_paths)
+{
+        struct mapped_device *md = dm_table_get_md(ti->table);
+        struct dm_uevent *event;
+
+        if (event_type >= ARRAY_SIZE(_dm_uevent_type_names)) {
+                DMERR("%s: Invalid event_type %d", __FUNCTION__, event_type);
+                goto out;
+        }
+
+        event = dm_build_path_uevent(md, ti,
+                                     _dm_uevent_type_names[event_type].action,
+                                     _dm_uevent_type_names[event_type].name,
+                                     path, nr_valid_paths);
+        if (IS_ERR(event))
+                goto out;
+
+        dm_uevent_add(md, &event->elist);
+
+out:
+        dm_put(md);
+}
+EXPORT_SYMBOL_GPL(dm_path_uevent);
+
+int dm_uevent_init(void)
+{
+        _dm_event_cache = KMEM_CACHE(dm_uevent, 0);
+        if (!_dm_event_cache)
+                return -ENOMEM;
+
+        DMINFO("version 1.0.3");
+
+        return 0;
+}
+
+void dm_uevent_exit(void)
+{
+        kmem_cache_destroy(_dm_event_cache);
+}
diff --git a/drivers/md/dm-uevent.h b/drivers/md/dm-uevent.h
new file mode 100644
index 000000000000..2eccc8bd671a
--- /dev/null
+++ b/drivers/md/dm-uevent.h
@@ -0,0 +1,59 @@
+/*
+ * Device Mapper Uevent Support
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright IBM Corporation, 2007
+ *      Author: Mike Anderson <andmike@linux.vnet.ibm.com>
+ */
+#ifndef DM_UEVENT_H
+#define DM_UEVENT_H
+
+enum dm_uevent_type {
+        DM_UEVENT_PATH_FAILED,
+        DM_UEVENT_PATH_REINSTATED,
+};
+
+#ifdef CONFIG_DM_UEVENT
+
+extern int dm_uevent_init(void);
+extern void dm_uevent_exit(void);
+extern void dm_send_uevents(struct list_head *events, struct kobject *kobj);
+extern void dm_path_uevent(enum dm_uevent_type event_type,
+                           struct dm_target *ti, const char *path,
+                           unsigned nr_valid_paths);
+
+#else
+
+static inline int dm_uevent_init(void)
+{
+        return 0;
+}
+static inline void dm_uevent_exit(void)
+{
+}
+static inline void dm_send_uevents(struct list_head *events,
+                                   struct kobject *kobj)
+{
+}
+static inline void dm_path_uevent(enum dm_uevent_type event_type,
+                                  struct dm_target *ti, const char *path,
+                                  unsigned nr_valid_paths)
+{
+}
+
+#endif  /* CONFIG_DM_UEVENT */
+
+#endif  /* DM_UEVENT_H */
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index d837d37f6209..07cbbb8eb3e0 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -7,6 +7,7 @@
 
 #include "dm.h"
 #include "dm-bio-list.h"
+#include "dm-uevent.h"
 
 #include <linux/init.h>
 #include <linux/module.h>
@@ -112,6 +113,9 @@ struct mapped_device {
          */
         atomic_t event_nr;
         wait_queue_head_t eventq;
+        atomic_t uevent_seq;
+        struct list_head uevent_list;
+        spinlock_t uevent_lock; /* Protect access to uevent_list */
 
         /*
          * freeze/thaw support require holding onto a super block
@@ -143,11 +147,19 @@ static int __init local_init(void)
                 return -ENOMEM;
         }
 
+        r = dm_uevent_init();
+        if (r) {
+                kmem_cache_destroy(_tio_cache);
+                kmem_cache_destroy(_io_cache);
+                return r;
+        }
+
         _major = major;
         r = register_blkdev(_major, _name);
         if (r < 0) {
                 kmem_cache_destroy(_tio_cache);
                 kmem_cache_destroy(_io_cache);
+                dm_uevent_exit();
                 return r;
         }
 
@@ -162,6 +174,7 @@ static void local_exit(void)
         kmem_cache_destroy(_tio_cache);
         kmem_cache_destroy(_io_cache);
         unregister_blkdev(_major, _name);
+        dm_uevent_exit();
 
         _major = 0;
 
@@ -751,15 +764,13 @@ static void __clone_and_map(struct clone_info *ci)
 /*
  * Split the bio into several clones.
  */
-static void __split_bio(struct mapped_device *md, struct bio *bio)
+static int __split_bio(struct mapped_device *md, struct bio *bio)
 {
         struct clone_info ci;
 
         ci.map = dm_get_table(md);
-        if (!ci.map) {
-                bio_io_error(bio);
-                return;
-        }
+        if (unlikely(!ci.map))
+                return -EIO;
 
         ci.md = md;
         ci.bio = bio;
@@ -779,6 +790,8 @@ static void __split_bio(struct mapped_device *md, struct bio *bio)
         /* drop the extra reference count */
         dec_pending(ci.io, 0);
         dm_table_put(ci.map);
+
+        return 0;
 }
 /*-----------------------------------------------------------------
  * CRUD END
@@ -790,7 +803,7 @@ static void __split_bio(struct mapped_device *md, struct bio *bio)
  */
 static int dm_request(struct request_queue *q, struct bio *bio)
 {
-        int r;
+        int r = -EIO;
         int rw = bio_data_dir(bio);
         struct mapped_device *md = q->queuedata;
 
@@ -815,18 +828,11 @@ static int dm_request(struct request_queue *q, struct bio *bio)
         while (test_bit(DMF_BLOCK_IO, &md->flags)) {
                 up_read(&md->io_lock);
 
-                if (bio_rw(bio) == READA) {
-                        bio_io_error(bio);
-                        return 0;
-                }
-
-                r = queue_io(md, bio);
-                if (r < 0) {
-                        bio_io_error(bio);
-                        return 0;
+                if (bio_rw(bio) != READA)
+                        r = queue_io(md, bio);
 
-                } else if (r == 0)
-                        return 0;       /* deferred successfully */
+                if (r <= 0)
+                        goto out_req;
 
                 /*
                  * We're in a while loop, because someone could suspend
@@ -835,8 +841,13 @@ static int dm_request(struct request_queue *q, struct bio *bio)
                 down_read(&md->io_lock);
         }
 
-        __split_bio(md, bio);
+        r = __split_bio(md, bio);
         up_read(&md->io_lock);
+
+out_req:
+        if (r < 0)
+                bio_io_error(bio);
+
         return 0;
 }
 
@@ -977,6 +988,9 @@ static struct mapped_device *alloc_dev(int minor)
         atomic_set(&md->holders, 1);
         atomic_set(&md->open_count, 0);
         atomic_set(&md->event_nr, 0);
+        atomic_set(&md->uevent_seq, 0);
+        INIT_LIST_HEAD(&md->uevent_list);
+        spin_lock_init(&md->uevent_lock);
 
         md->queue = blk_alloc_queue(GFP_KERNEL);
         if (!md->queue)
@@ -1044,12 +1058,14 @@ static struct mapped_device *alloc_dev(int minor)
         return NULL;
 }
 
+static void unlock_fs(struct mapped_device *md);
+
 static void free_dev(struct mapped_device *md)
 {
         int minor = md->disk->first_minor;
 
         if (md->suspended_bdev) {
-                thaw_bdev(md->suspended_bdev, NULL);
+                unlock_fs(md);
                 bdput(md->suspended_bdev);
         }
         mempool_destroy(md->tio_pool);
@@ -1073,8 +1089,16 @@ static void free_dev(struct mapped_device *md)
  */
 static void event_callback(void *context)
 {
+        unsigned long flags;
+        LIST_HEAD(uevents);
         struct mapped_device *md = (struct mapped_device *) context;
 
+        spin_lock_irqsave(&md->uevent_lock, flags);
+        list_splice_init(&md->uevent_list, &uevents);
+        spin_unlock_irqrestore(&md->uevent_lock, flags);
+
+        dm_send_uevents(&uevents, &md->disk->kobj);
+
         atomic_inc(&md->event_nr);
         wake_up(&md->eventq);
 }
@@ -1233,7 +1257,8 @@ static void __flush_deferred_io(struct mapped_device *md, struct bio *c)
         while (c) {
                 n = c->bi_next;
                 c->bi_next = NULL;
-                __split_bio(md, c);
+                if (__split_bio(md, c))
+                        bio_io_error(c);
                 c = n;
         }
 }
@@ -1491,6 +1516,11 @@ out:
 /*-----------------------------------------------------------------
  * Event notification.
  *---------------------------------------------------------------*/
+uint32_t dm_next_uevent_seq(struct mapped_device *md)
+{
+        return atomic_add_return(1, &md->uevent_seq);
+}
+
 uint32_t dm_get_event_nr(struct mapped_device *md)
 {
         return atomic_read(&md->event_nr);
@@ -1502,6 +1532,15 @@ int dm_wait_event(struct mapped_device *md, int event_nr)
                         (event_nr != atomic_read(&md->event_nr)));
 }
 
+void dm_uevent_add(struct mapped_device *md, struct list_head *elist)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&md->uevent_lock, flags);
+        list_add(elist, &md->uevent_list);
+        spin_unlock_irqrestore(&md->uevent_lock, flags);
+}
+
 /*
  * The gendisk is only valid as long as you have a reference
  * count on 'md'.
diff --git a/drivers/md/kcopyd.c b/drivers/md/kcopyd.c
index 7e052378c47e..f3831f31223e 100644
--- a/drivers/md/kcopyd.c
+++ b/drivers/md/kcopyd.c
@@ -198,7 +198,7 @@ struct kcopyd_job {
          * These fields are only used if the job has been split
          * into more manageable parts.
          */
-        struct semaphore lock;
+        struct mutex lock;
         atomic_t sub_jobs;
         sector_t progress;
 };
@@ -456,7 +456,7 @@ static void segment_complete(int read_err,
         sector_t count = 0;
         struct kcopyd_job *job = (struct kcopyd_job *) context;
 
-        down(&job->lock);
+        mutex_lock(&job->lock);
 
         /* update the error */
         if (read_err)
@@ -480,7 +480,7 @@ static void segment_complete(int read_err,
                         job->progress += count;
                 }
         }
-        up(&job->lock);
+        mutex_unlock(&job->lock);
 
         if (count) {
                 int i;
@@ -562,7 +562,7 @@ int kcopyd_copy(struct kcopyd_client *kc, struct io_region *from,
                 dispatch_job(job);
 
         else {
-                init_MUTEX(&job->lock);
+                mutex_init(&job->lock);
                 job->progress = 0;
                 split_job(job);
         }
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index fd9e8405fd77..ce34b539bf38 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1293,9 +1293,6 @@ config PCNET32_NAPI
           deployed on potentially unfriendly networks (e.g. in a firewall),
           then say Y here.
 
-          See <file:Documentation/networking/NAPI_HOWTO.txt> for more
-          information.
-
           If in doubt, say N.
 
 config AMD8111_ETH
@@ -1313,7 +1310,7 @@ config AMD8111_ETH
           will be called amd8111e.
 
 config AMD8111E_NAPI
-        bool "Enable NAPI support"
+        bool "Use RX polling (NAPI)"
         depends on AMD8111_ETH
         help
           NAPI is a new driver API designed to reduce CPU and interrupt load
@@ -1324,9 +1321,6 @@ config AMD8111E_NAPI
           deployed on potentially unfriendly networks (e.g. in a firewall),
           then say Y here.
 
-          See <file:Documentation/networking/NAPI_HOWTO.txt> for more
-          information.
-
           If in doubt, say N.
 
 config ADAPTEC_STARFIRE
@@ -1355,9 +1349,6 @@ config ADAPTEC_STARFIRE_NAPI
           deployed on potentially unfriendly networks (e.g. in a firewall),
           then say Y here.
 
-          See <file:Documentation/networking/NAPI_HOWTO.txt> for more
-          information.
-
           If in doubt, say N.
 
 config AC3200
@@ -1431,7 +1422,7 @@ config FORCEDETH
           called forcedeth.
 
 config FORCEDETH_NAPI
-        bool "Use Rx and Tx Polling (NAPI) (EXPERIMENTAL)"
+        bool "Use Rx Polling (NAPI) (EXPERIMENTAL)"
         depends on FORCEDETH && EXPERIMENTAL
         help
           NAPI is a new driver API designed to reduce CPU and interrupt load
@@ -1442,9 +1433,6 @@ config FORCEDETH_NAPI
           deployed on potentially unfriendly networks (e.g. in a firewall),
           then say Y here.
 
-          See <file:Documentation/networking/NAPI_HOWTO.txt> for more
-          information.
-
           If in doubt, say N.
 
 config CS89x0
@@ -1756,9 +1744,6 @@ config VIA_RHINE_NAPI
           deployed on potentially unfriendly networks (e.g. in a firewall),
           then say Y here.
 
-          See <file:Documentation/networking/NAPI_HOWTO.txt> for more
-          information.
-
 config LAN_SAA9730
         bool "Philips SAA9730 Ethernet support"
         depends on NET_PCI && PCI && MIPS_ATLAS
@@ -2003,9 +1988,6 @@ config E1000_NAPI
           deployed on potentially unfriendly networks (e.g. in a firewall),
           then say Y here.
 
-          See <file:Documentation/networking/NAPI_HOWTO.txt> for more
-          information.
-
           If in doubt, say N.
 
 config E1000_DISABLE_PACKET_SPLIT
@@ -2099,7 +2081,7 @@ config R8169
           will be called r8169.  This is recommended.
 
 config R8169_NAPI
-        bool "Use Rx and Tx Polling (NAPI) (EXPERIMENTAL)"
+        bool "Use Rx Polling (NAPI) (EXPERIMENTAL)"
         depends on R8169 && EXPERIMENTAL
         help
           NAPI is a new driver API designed to reduce CPU and interrupt load
@@ -2110,9 +2092,6 @@ config R8169_NAPI
           deployed on potentially unfriendly networks (e.g. in a firewall),
           then say Y here.
 
-          See <file:Documentation/networking/NAPI_HOWTO.txt> for more
-          information.
-
           If in doubt, say N.
 
 config R8169_VLAN
@@ -2364,7 +2343,7 @@ config GIANFAR
           and MPC86xx family of chips, and the FEC on the 8540.
 
 config GFAR_NAPI
-        bool "NAPI Support"
+        bool "Use Rx Polling (NAPI)"
         depends on GIANFAR
 
 config UCC_GETH
@@ -2376,7 +2355,7 @@ config UCC_GETH
           which is available on some Freescale SOCs.
 
 config UGETH_NAPI
-        bool "NAPI Support"
+        bool "Use Rx Polling (NAPI)"
         depends on UCC_GETH
 
 config UGETH_MAGIC_PACKET
@@ -2494,7 +2473,7 @@ config CHELSIO_T3
 
 config EHEA
         tristate "eHEA Ethernet support"
-        depends on IBMEBUS
+        depends on IBMEBUS && INET
         select INET_LRO
         ---help---
           This driver supports the IBM pSeries eHEA ethernet adapter.
@@ -2559,9 +2538,6 @@ config IXGB_NAPI
           deployed on potentially unfriendly networks (e.g. in a firewall),
           then say Y here.
 
-          See <file:Documentation/networking/NAPI_HOWTO.txt> for more
-          information.
-
           If in doubt, say N.
 
 config S2IO
@@ -2584,14 +2560,11 @@ config S2IO_NAPI
           deployed on potentially unfriendly networks (e.g. in a firewall),
           then say Y here.
 
-          See <file:Documentation/networking/NAPI_HOWTO.txt> for more
-          information.
-
           If in doubt, say N.
 
 config MYRI10GE
         tristate "Myricom Myri-10G Ethernet support"
-        depends on PCI
+        depends on PCI && INET
         select FW_LOADER
         select CRC32
         select INET_LRO
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index 27ac010900ab..3286d2a0a870 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -542,7 +542,8 @@ dm9000_probe(struct platform_device *pdev)
 
         if (id_val != DM9000_ID) {
                 printk("%s: wrong id: 0x%08x\n", CARDNAME, id_val);
-                goto release;
+                ret = -ENODEV;
+                goto out;
         }
 
         /* from this point we assume that we have found a DM9000 */
@@ -602,8 +603,7 @@ dm9000_probe(struct platform_device *pdev)
         }
         return 0;
 
- release:
- out:
+out:
         printk("%s: not found (%d).\n", CARDNAME, ret);
 
         dm9000_release_board(pdev, db);
diff --git a/drivers/net/phy/mdio-bitbang.c b/drivers/net/phy/mdio-bitbang.c
index 8cd243d92af3..2747b1f89ffe 100644
--- a/drivers/net/phy/mdio-bitbang.c
+++ b/drivers/net/phy/mdio-bitbang.c
@@ -185,3 +185,5 @@ void free_mdio_bitbang(struct mii_bus *bus)
         module_put(ctrl->ops->owner);
         kfree(bus);
 }
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/tsi108_eth.c b/drivers/net/tsi108_eth.c
index df10af7df7b8..35d15e850075 100644
--- a/drivers/net/tsi108_eth.c
+++ b/drivers/net/tsi108_eth.c
@@ -1629,7 +1629,7 @@ tsi108_init_one(struct platform_device *pdev)
                 goto register_fail;
         }
 
-        printk(KERN_INFO "%s: Tsi108 Gigabit Ethernet, MAC: %s\n"
+        printk(KERN_INFO "%s: Tsi108 Gigabit Ethernet, MAC: %s\n",
                dev->name, print_mac(mac, dev->dev_addr));
 #ifdef DEBUG
         data->msg_enable = DEBUG;
diff --git a/drivers/net/tulip/Kconfig b/drivers/net/tulip/Kconfig
index 1c537d5a3062..49d7a290dbbc 100644
--- a/drivers/net/tulip/Kconfig
+++ b/drivers/net/tulip/Kconfig
@@ -67,7 +67,7 @@ config TULIP_MMIO
           If in doubt, say N.
 
 config TULIP_NAPI
-        bool "Use NAPI RX polling "
+        bool "Use RX polling (NAPI)"
         depends on TULIP
         help
           NAPI is a new driver API designed to reduce CPU and interrupt load
@@ -78,18 +78,16 @@ config TULIP_NAPI
           deployed on potentially unfriendly networks (e.g. in a firewall),
           then say Y here.
 
-          See <file:Documentation/networking/NAPI_HOWTO.txt> for more
-          information.
-
           If in doubt, say N.
 
 config TULIP_NAPI_HW_MITIGATION
-        bool "Use Interrupt Mitigation "
+        bool "Use Interrupt Mitigation"
         depends on TULIP_NAPI
         ---help---
-          Use HW to reduce RX interrupts. Not strict necessary since NAPI reduces
-          RX interrupts but itself. Although this reduces RX interrupts even at
-          low levels traffic at the cost of a small latency.
+          Use HW to reduce RX interrupts. Not strictly necessary since NAPI
+          reduces RX interrupts by itself. Interrupt mitigation reduces RX
+          interrupts even at low levels of traffic at the cost of a small
+          latency.
 
           If in doubt, say Y.
 
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index c141a264ac45..9d9ff76a9bc6 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -49,7 +49,6 @@
 #include "pio.h"
 #include "sysfs.h"
 #include "xmit.h"
-#include "sysfs.h"
 #include "lo.h"
 #include "pcmcia.h"
 
@@ -3495,7 +3494,7 @@ static int b43_start(struct ieee80211_hw *hw)
         struct b43_wl *wl = hw_to_b43_wl(hw);
         struct b43_wldev *dev = wl->current_dev;
         int did_init = 0;
-        int err;
+        int err = 0;
 
         mutex_lock(&wl->mutex);
 
@@ -3521,7 +3520,7 @@ static int b43_start(struct ieee80211_hw *hw)
         return err;
 }
 
-void b43_stop(struct ieee80211_hw *hw)
+static void b43_stop(struct ieee80211_hw *hw)
 {
         struct b43_wl *wl = hw_to_b43_wl(hw);
         struct b43_wldev *dev = wl->current_dev;
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index f0749510bcd7..d09479e816cd 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -3306,7 +3306,7 @@ static int b43legacy_start(struct ieee80211_hw *hw)
         struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
         struct b43legacy_wldev *dev = wl->current_dev;
         int did_init = 0;
-        int err;
+        int err = 0;
 
         mutex_lock(&wl->mutex);
 
diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c
index 92314c365afd..a6c7904de282 100644
--- a/drivers/net/wireless/ipw2100.c
+++ b/drivers/net/wireless/ipw2100.c
@@ -2089,12 +2089,46 @@ static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
         queue_delayed_work(priv->workqueue, &priv->rf_kill, round_jiffies(HZ));
 }
 
+static void send_scan_event(void *data)
+{
+        struct ipw2100_priv *priv = data;
+        union iwreq_data wrqu;
+
+        wrqu.data.length = 0;
+        wrqu.data.flags = 0;
+        wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL);
+}
+
+static void ipw2100_scan_event_later(struct work_struct *work)
+{
+        send_scan_event(container_of(work, struct ipw2100_priv,
+                                        scan_event_later.work));
+}
+
+static void ipw2100_scan_event_now(struct work_struct *work)
+{
+        send_scan_event(container_of(work, struct ipw2100_priv,
+                                        scan_event_now));
+}
+
 static void isr_scan_complete(struct ipw2100_priv *priv, u32 status)
 {
         IPW_DEBUG_SCAN("scan complete\n");
         /* Age the scan results... */
         priv->ieee->scans++;
         priv->status &= ~STATUS_SCANNING;
+
+        /* Only userspace-requested scan completion events go out immediately */
+        if (!priv->user_requested_scan) {
+                if (!delayed_work_pending(&priv->scan_event_later))
+                        queue_delayed_work(priv->workqueue,
+                                        &priv->scan_event_later,
+                                        round_jiffies(msecs_to_jiffies(4000)));
+        } else {
+                priv->user_requested_scan = 0;
+                cancel_delayed_work(&priv->scan_event_later);
+                queue_work(priv->workqueue, &priv->scan_event_now);
+        }
 }
 
 #ifdef CONFIG_IPW2100_DEBUG
@@ -4349,6 +4383,7 @@ static void ipw2100_kill_workqueue(struct ipw2100_priv *priv)
                 cancel_delayed_work(&priv->wx_event_work);
                 cancel_delayed_work(&priv->hang_check);
                 cancel_delayed_work(&priv->rf_kill);
+                cancel_delayed_work(&priv->scan_event_later);
                 destroy_workqueue(priv->workqueue);
                 priv->workqueue = NULL;
         }
@@ -6092,6 +6127,8 @@ static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
         INIT_DELAYED_WORK(&priv->wx_event_work, ipw2100_wx_event_work);
         INIT_DELAYED_WORK(&priv->hang_check, ipw2100_hang_check);
         INIT_DELAYED_WORK(&priv->rf_kill, ipw2100_rf_kill);
+        INIT_WORK(&priv->scan_event_now, ipw2100_scan_event_now);
+        INIT_DELAYED_WORK(&priv->scan_event_later, ipw2100_scan_event_later);
 
         tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
                      ipw2100_irq_tasklet, (unsigned long)priv);
@@ -7396,6 +7433,8 @@ static int ipw2100_wx_set_scan(struct net_device *dev,
         }
 
         IPW_DEBUG_WX("Initiating scan...\n");
+
+        priv->user_requested_scan = 1;
         if (ipw2100_set_scan_options(priv) || ipw2100_start_scan(priv)) {
                 IPW_DEBUG_WX("Start scan failed.\n");
 
diff --git a/drivers/net/wireless/ipw2100.h b/drivers/net/wireless/ipw2100.h
index 2b8be2418fa7..bbf1ddcafba8 100644
--- a/drivers/net/wireless/ipw2100.h
+++ b/drivers/net/wireless/ipw2100.h
@@ -586,6 +586,10 @@ struct ipw2100_priv {
         struct delayed_work wx_event_work;
         struct delayed_work hang_check;
         struct delayed_work rf_kill;
+        struct work_struct scan_event_now;
+        struct delayed_work scan_event_later;
+
+        int user_requested_scan;
 
         u32 interrupts;
         int tx_interrupts;
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index f4aabcf480e4..262ab0b55824 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -37,9 +37,6 @@
 
 #include <linux/workqueue.h>
 
-#include <net/mac80211.h>
-#include <linux/wireless.h>
-
 #define IWL 3945
 
 #include "../net/mac80211/ieee80211_rate.h"
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index acb38750535f..19bcb01e2784 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -38,7 +38,6 @@
 #include <net/mac80211.h>
 
 #include <linux/etherdevice.h>
-#include <linux/delay.h>
 
 #define IWL 3945
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-rs.c b/drivers/net/wireless/iwlwifi/iwl-4965-rs.c
index 287c75705c44..8dc78c0bf1ff 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-rs.c
@@ -36,9 +36,6 @@
 
 #include <linux/workqueue.h>
 
-#include <net/mac80211.h>
-#include <linux/wireless.h>
-
 #define IWL 4965
 
 #include "../net/mac80211/ieee80211_rate.h"
@@ -2024,12 +2021,18 @@ static int open_file_generic(struct inode *inode, struct file *file)
 static void rs_dbgfs_set_mcs(struct iwl_rate_scale_priv *rs_priv,
                                 struct iwl_rate *mcs, int index)
 {
-        const u32 cck_rate = 0x820A;
+        u32 base_rate;
+
+        if (rs_priv->phymode == (u8) MODE_IEEE80211A)
+                base_rate = 0x800D;
+        else
+                base_rate = 0x820A;
+
         if (rs_priv->dbg_fixed.rate_n_flags) {
                 if (index < 12)
                         mcs->rate_n_flags = rs_priv->dbg_fixed.rate_n_flags;
                 else
-                        mcs->rate_n_flags = cck_rate;
+                        mcs->rate_n_flags = base_rate;
                 IWL_DEBUG_RATE("Fixed rate ON\n");
                 return;
         }
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index b50d20267c8a..557deebca1b9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -35,9 +35,7 @@
 #include <linux/netdevice.h>
 #include <linux/wireless.h>
 #include <net/mac80211.h>
-#include <linux/netdevice.h>
 #include <linux/etherdevice.h>
-#include <linux/delay.h>
 
 #define IWL 4965
 
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 75e3b5c3f155..83019d1d7ccc 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -48,8 +48,6 @@
 #include <linux/netdevice.h>
 #include <linux/wireless.h>
 #include <linux/firmware.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/if_arp.h>
 
@@ -1749,21 +1747,22 @@ static void iwl_unset_hw_setting(struct iwl_priv *priv)
  * return : set the bit for each supported rate insert in ie
  */
 static u16 iwl_supported_rate_to_ie(u8 *ie, u16 supported_rate,
-                                    u16 basic_rate, int max_count)
+                                    u16 basic_rate, int *left)
 {
         u16 ret_rates = 0, bit;
         int i;
-        u8 *rates;
-
-        rates = &(ie[1]);
+        u8 *cnt = ie;
+        u8 *rates = ie + 1;
 
         for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
                 if (bit & supported_rate) {
                         ret_rates |= bit;
-                        rates[*ie] = iwl_rates[i].ieee |
-                            ((bit & basic_rate) ? 0x80 : 0x00);
-                        *ie = *ie + 1;
-                        if (*ie >= max_count)
+                        rates[*cnt] = iwl_rates[i].ieee |
+                                ((bit & basic_rate) ? 0x80 : 0x00);
+                        (*cnt)++;
+                        (*left)--;
+                        if ((*left <= 0) ||
+                            (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
                                 break;
                 }
         }
@@ -1780,7 +1779,7 @@ static u16 iwl_fill_probe_req(struct iwl_priv *priv,
 {
         int len = 0;
         u8 *pos = NULL;
-        u16 ret_rates;
+        u16 active_rates, ret_rates, cck_rates;
 
         /* Make sure there is enough space for the probe request,
          * two mandatory IEs and the data */
@@ -1825,19 +1824,27 @@ static u16 iwl_fill_probe_req(struct iwl_priv *priv,
         left -= 2;
         if (left < 0)
                 return 0;
+
         /* ... fill it in... */
         *pos++ = WLAN_EID_SUPP_RATES;
         *pos = 0;
-        ret_rates = priv->active_rate = priv->rates_mask;
+
+        priv->active_rate = priv->rates_mask;
+        active_rates = priv->active_rate;
         priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
 
-        iwl_supported_rate_to_ie(pos, priv->active_rate,
-                                 priv->active_rate_basic, left);
+        cck_rates = IWL_CCK_RATES_MASK & active_rates;
+        ret_rates = iwl_supported_rate_to_ie(pos, cck_rates,
+                        priv->active_rate_basic, &left);
+        active_rates &= ~ret_rates;
+
+        ret_rates = iwl_supported_rate_to_ie(pos, active_rates,
+                                 priv->active_rate_basic, &left);
+        active_rates &= ~ret_rates;
+
         len += 2 + *pos;
         pos += (*pos) + 1;
-        ret_rates = ~ret_rates & priv->active_rate;
-
-        if (ret_rates == 0)
+        if (active_rates == 0)
                 goto fill_end;
 
         /* fill in supported extended rate */
@@ -1848,7 +1855,8 @@ static u16 iwl_fill_probe_req(struct iwl_priv *priv,
         /* ... fill it in... */
         *pos++ = WLAN_EID_EXT_SUPP_RATES;
         *pos = 0;
-        iwl_supported_rate_to_ie(pos, ret_rates, priv->active_rate_basic, left);
+        iwl_supported_rate_to_ie(pos, active_rates,
+                                 priv->active_rate_basic, &left);
         if (*pos > 0)
                 len += 2 + *pos;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index b1a6e39f7821..5e1279263b22 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -48,8 +48,6 @@
 #include <linux/netdevice.h>
 #include <linux/wireless.h>
 #include <linux/firmware.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/if_arp.h>
 
@@ -1802,21 +1800,22 @@ static void iwl_unset_hw_setting(struct iwl_priv *priv)
  * return : set the bit for each supported rate insert in ie
  */
 static u16 iwl_supported_rate_to_ie(u8 *ie, u16 supported_rate,
-                                    u16 basic_rate, int max_count)
+                                    u16 basic_rate, int *left)
 {
         u16 ret_rates = 0, bit;
         int i;
-        u8 *rates;
-
-        rates = &(ie[1]);
+        u8 *cnt = ie;
+        u8 *rates = ie + 1;
 
         for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
                 if (bit & supported_rate) {
                         ret_rates |= bit;
-                        rates[*ie] = iwl_rates[i].ieee |
-                            ((bit & basic_rate) ? 0x80 : 0x00);
-                        *ie = *ie + 1;
-                        if (*ie >= max_count)
+                        rates[*cnt] = iwl_rates[i].ieee |
+                                ((bit & basic_rate) ? 0x80 : 0x00);
+                        (*cnt)++;
+                        (*left)--;
+                        if ((*left <= 0) ||
+                            (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
                                 break;
                 }
         }
@@ -1839,7 +1838,7 @@ static u16 iwl_fill_probe_req(struct iwl_priv *priv,
 {
         int len = 0;
         u8 *pos = NULL;
-        u16 ret_rates;
+        u16 active_rates, ret_rates, cck_rates;
 
         /* Make sure there is enough space for the probe request,
          * two mandatory IEs and the data */
@@ -1884,19 +1883,27 @@ static u16 iwl_fill_probe_req(struct iwl_priv *priv,
         left -= 2;
         if (left < 0)
                 return 0;
+
         /* ... fill it in... */
         *pos++ = WLAN_EID_SUPP_RATES;
         *pos = 0;
-        ret_rates = priv->active_rate = priv->rates_mask;
+
+        priv->active_rate = priv->rates_mask;
+        active_rates = priv->active_rate;
         priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
 
-        iwl_supported_rate_to_ie(pos, priv->active_rate,
-                                 priv->active_rate_basic, left);
+        cck_rates = IWL_CCK_RATES_MASK & active_rates;
+        ret_rates = iwl_supported_rate_to_ie(pos, cck_rates,
+                        priv->active_rate_basic, &left);
+        active_rates &= ~ret_rates;
+
+        ret_rates = iwl_supported_rate_to_ie(pos, active_rates,
+                                 priv->active_rate_basic, &left);
+        active_rates &= ~ret_rates;
+
         len += 2 + *pos;
         pos += (*pos) + 1;
-        ret_rates = ~ret_rates & priv->active_rate;
-
-        if (ret_rates == 0)
+        if (active_rates == 0)
                 goto fill_end;
 
         /* fill in supported extended rate */
@@ -1907,7 +1914,8 @@ static u16 iwl_fill_probe_req(struct iwl_priv *priv,
         /* ... fill it in... */
         *pos++ = WLAN_EID_EXT_SUPP_RATES;
         *pos = 0;
-        iwl_supported_rate_to_ie(pos, ret_rates, priv->active_rate_basic, left);
+        iwl_supported_rate_to_ie(pos, active_rates,
+                                 priv->active_rate_basic, &left);
         if (*pos > 0)
                 len += 2 + *pos;
 
@@ -4494,13 +4502,13 @@ static u8 ratio2dB[100] = {
  * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
 int iwl_calc_db_from_ratio(int sig_ratio)
 {
-        /* Anything above 1000:1 just report as 60 dB */
-        if (sig_ratio > 1000)
+        /* 1000:1 or higher just report as 60 dB */
+        if (sig_ratio >= 1000)
                 return 60;
 
-        /* Above 100:1, divide by 10 and use table,
+        /* 100:1 or higher, divide by 10 and use table,
          *   add 20 dB to make up for divide by 10 */
-        if (sig_ratio > 100)
+        if (sig_ratio >= 100)
                 return (20 + (int)ratio2dB[sig_ratio/10]);
 
         /* We shouldn't see this */
diff --git a/drivers/net/wireless/iwlwifi/iwlwifi.h b/drivers/net/wireless/iwlwifi/iwlwifi.h
index e0b97c341215..432ce887807f 100644
--- a/drivers/net/wireless/iwlwifi/iwlwifi.h
+++ b/drivers/net/wireless/iwlwifi/iwlwifi.h
@@ -39,18 +39,13 @@ struct iwl_priv;
 /* Hardware specific file defines the PCI IDs table for that hardware module */
 extern struct pci_device_id iwl_hw_card_ids[];
 
+#include "iwl-hw.h"
 #if IWL == 3945
-
 #define DRV_NAME        "iwl3945"
-#include "iwl-hw.h"
 #include "iwl-3945-hw.h"
-
 #elif IWL == 4965
-
 #define DRV_NAME        "iwl4965"
-#include "iwl-hw.h"
 #include "iwl-4965-hw.h"
-
 #endif
 
 #include "iwl-prph.h"
diff --git a/drivers/net/wireless/p54common.c b/drivers/net/wireless/p54common.c
index 2c63cf0ad2cd..1437db0cf4b2 100644
--- a/drivers/net/wireless/p54common.c
+++ b/drivers/net/wireless/p54common.c
@@ -577,7 +577,7 @@ static int p54_set_filter(struct ieee80211_hw *dev, u16 filter_type,
         struct p54_tx_control_filter *filter;
 
         hdr = kzalloc(sizeof(*hdr) + sizeof(*filter) +
-                      priv->tx_hdr_len, GFP_KERNEL);
+                      priv->tx_hdr_len, GFP_ATOMIC);
         if (!hdr)
                 return -ENOMEM;
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index bb6f46cfbb9f..ff399f8083e9 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -550,7 +550,7 @@ void rt2x00lib_write_tx_desc(struct rt2x00_dev *rt2x00dev,
                         /*
                          * Check if we need to set the Length Extension
                          */
-                        if (bitrate == 110 && residual <= 3)
+                        if (bitrate == 110 && residual <= 30)
                                 desc.service |= 0x80;
                 }
 
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 3e42759473c3..46c8c0840a65 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -2029,6 +2029,7 @@ static struct usb_device_id rt73usb_device_table[] = {
         { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt73usb_ops) },
         { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt73usb_ops) },
         { USB_DEVICE(0x050d, 0x905b), USB_DEVICE_DATA(&rt73usb_ops) },
+        { USB_DEVICE(0x050d, 0x905c), USB_DEVICE_DATA(&rt73usb_ops) },
         /* Billionton */
         { USB_DEVICE(0x1631, 0xc019), USB_DEVICE_DATA(&rt73usb_ops) },
         /* Buffalo */
diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c
index 0ef887dd2867..de61c8fe6492 100644
--- a/drivers/net/wireless/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl8187_dev.c
@@ -131,7 +131,8 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb,
         struct rtl8187_tx_hdr *hdr;
         struct rtl8187_tx_info *info;
         struct urb *urb;
-        u32 tmp;
+        __le16 rts_dur = 0;
+        u32 flags;
 
         urb = usb_alloc_urb(0, GFP_ATOMIC);
         if (!urb) {
@@ -139,24 +140,24 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb,
                 return 0;
         }
 
-        hdr = (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
-        tmp = skb->len - sizeof(*hdr);
-        tmp |= RTL8187_TX_FLAG_NO_ENCRYPT;
-        tmp |= control->rts_cts_rate << 19;
-        tmp |= control->tx_rate << 24;
-        if (ieee80211_get_morefrag((struct ieee80211_hdr *)skb))
-                tmp |= RTL8187_TX_FLAG_MORE_FRAG;
+        flags = skb->len;
+        flags |= RTL8187_TX_FLAG_NO_ENCRYPT;
+        flags |= control->rts_cts_rate << 19;
+        flags |= control->tx_rate << 24;
+        if (ieee80211_get_morefrag((struct ieee80211_hdr *)skb->data))
+                flags |= RTL8187_TX_FLAG_MORE_FRAG;
         if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
-                tmp |= RTL8187_TX_FLAG_RTS;
-                hdr->rts_duration =
-                        ieee80211_rts_duration(dev, priv->if_id, skb->len, control);
+                flags |= RTL8187_TX_FLAG_RTS;
+                rts_dur = ieee80211_rts_duration(dev, priv->if_id, skb->len, control);
         }
         if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
-                tmp |= RTL8187_TX_FLAG_CTS;
-        hdr->flags = cpu_to_le32(tmp);
+                flags |= RTL8187_TX_FLAG_CTS;
+
+        hdr = (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
+        hdr->flags = cpu_to_le32(flags);
         hdr->len = 0;
-        tmp = control->retry_limit << 8;
-        hdr->retry = cpu_to_le32(tmp);
+        hdr->rts_duration = rts_dur;
+        hdr->retry = cpu_to_le32(control->retry_limit << 8);
 
         info = (struct rtl8187_tx_info *)skb->cb;
         info->control = kmemdup(control, sizeof(*control), GFP_ATOMIC);
@@ -587,8 +588,6 @@ static void rtl8187_configure_filter(struct ieee80211_hw *dev,
 
         *total_flags = 0;
 
-        if (changed_flags & FIF_PROMISC_IN_BSS)
-                priv->rx_conf ^= RTL818X_RX_CONF_NICMAC;
         if (changed_flags & FIF_ALLMULTI)
                 priv->rx_conf ^= RTL818X_RX_CONF_MULTICAST;
         if (changed_flags & FIF_FCSFAIL)
@@ -601,8 +600,6 @@ static void rtl8187_configure_filter(struct ieee80211_hw *dev,
         if (mc_count > 0)
                 priv->rx_conf |= RTL818X_RX_CONF_MULTICAST;
 
-        if (priv->rx_conf & RTL818X_RX_CONF_NICMAC)
-                *total_flags |= FIF_PROMISC_IN_BSS;
         if (priv->rx_conf & RTL818X_RX_CONF_MULTICAST)
                 *total_flags |= FIF_ALLMULTI;
         if (priv->rx_conf & RTL818X_RX_CONF_FCS)
diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
index 935b144d9b56..d5c0c66188ca 100644
--- a/drivers/net/wireless/zd1201.c
+++ b/drivers/net/wireless/zd1201.c
@@ -327,8 +327,8 @@ static void zd1201_usbrx(struct urb *urb)
                         memcpy(skb_put(skb, 6), &data[datalen-8], 6);
                         memcpy(skb_put(skb, 2), &data[datalen-24], 2);
                         memcpy(skb_put(skb, len), data, len);
-                        skb->dev->last_rx = jiffies;
                         skb->protocol = eth_type_trans(skb, zd->dev);
+                        skb->dev->last_rx = jiffies;
                         zd->stats.rx_packets++;
                         zd->stats.rx_bytes += skb->len;
                         netif_rx(skb);
@@ -384,8 +384,8 @@ static void zd1201_usbrx(struct urb *urb)
                         memcpy(skb_put(skb, 2), &data[6], 2);
                         memcpy(skb_put(skb, len), data+8, len);
                 }
-                skb->dev->last_rx = jiffies;
                 skb->protocol = eth_type_trans(skb, zd->dev);
+                skb->dev->last_rx = jiffies;
                 zd->stats.rx_packets++;
                 zd->stats.rx_bytes += skb->len;
                 netif_rx(skb);
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index b0684f965761..c755b6923812 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -1044,14 +1044,17 @@ error:
 static void disconnect(struct usb_interface *intf)
 {
         struct net_device *netdev = zd_intf_to_netdev(intf);
-        struct zd_mac *mac = zd_netdev_mac(netdev);
-        struct zd_usb *usb = &mac->chip.usb;
+        struct zd_mac *mac;
+        struct zd_usb *usb;
 
         /* Either something really bad happened, or we're just dealing with
          * a DEVICE_INSTALLER. */
         if (netdev == NULL)
                 return;
 
+        mac = zd_netdev_mac(netdev);
+        usb = &mac->chip.usb;
+
         dev_dbg_f(zd_usb_dev(usb), "\n");
 
         zd_netdev_disconnect(netdev);
diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c
index a2d08c9ba3c4..ff999ff0b627 100644
--- a/drivers/s390/net/qeth_main.c
+++ b/drivers/s390/net/qeth_main.c
@@ -6643,7 +6643,8 @@ qeth_netdev_init(struct net_device *dev)
         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
 #endif
-        dev->header_ops = &qeth_null_ops;
+        if (qeth_get_netdev_flags(card) & IFF_NOARP)
+                dev->header_ops = &qeth_null_ops;
 
 #ifdef CONFIG_QETH_IPV6
         /*IPv6 address autoconfiguration stuff*/
diff --git a/drivers/video/geode/video_gx.c b/drivers/video/geode/video_gx.c
index 7f3f18d06718..febf09c63492 100644
--- a/drivers/video/geode/video_gx.c
+++ b/drivers/video/geode/video_gx.c
@@ -127,7 +127,7 @@ static void gx_set_dclk_frequency(struct fb_info *info)
         int timeout = 1000;
 
         /* Rev. 1 Geode GXs use a 14 MHz reference clock instead of 48 MHz. */
-        if (cpu_data->x86_mask == 1) {
+        if (cpu_data(0).x86_mask == 1) {
                 pll_table = gx_pll_table_14MHz;
                 pll_table_len = ARRAY_SIZE(gx_pll_table_14MHz);
         } else {
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index af8b235d405d..11833f4caeaa 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -168,7 +168,8 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
         spin_unlock(&inode->i_lock);
 
         spin_unlock(&clp->cl_lock);
-        kfree(delegation);
+        if (delegation != NULL)
+                nfs_free_delegation(delegation);
         return status;
 }
 
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 8ec7fbd8240c..35334539d947 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -562,6 +562,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
         nfs_fattr_init(&fattr);
         desc->entry = &my_entry;
 
+        nfs_block_sillyrename(dentry);
         while(!desc->entry->eof) {
                 res = readdir_search_pagecache(desc);
 
@@ -592,6 +593,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
                         break;
                 }
         }
+        nfs_unblock_sillyrename(dentry);
         unlock_kernel();
         if (res > 0)
                 res = 0;
@@ -866,6 +868,7 @@ struct dentry_operations nfs_dentry_operations = {
 static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd)
 {
         struct dentry *res;
+        struct dentry *parent;
         struct inode *inode = NULL;
         int error;
         struct nfs_fh fhandle;
@@ -894,26 +897,31 @@ static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru
                 goto out_unlock;
         }
 
+        parent = dentry->d_parent;
+        /* Protect against concurrent sillydeletes */
+        nfs_block_sillyrename(parent);
         error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, &fhandle, &fattr);
         if (error == -ENOENT)
                 goto no_entry;
         if (error < 0) {
                 res = ERR_PTR(error);
-                goto out_unlock;
+                goto out_unblock_sillyrename;
         }
         inode = nfs_fhget(dentry->d_sb, &fhandle, &fattr);
         res = (struct dentry *)inode;
         if (IS_ERR(res))
-                goto out_unlock;
+                goto out_unblock_sillyrename;
 
 no_entry:
         res = d_materialise_unique(dentry, inode);
         if (res != NULL) {
                 if (IS_ERR(res))
-                        goto out_unlock;
+                        goto out_unblock_sillyrename;
                 dentry = res;
         }
         nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
+out_unblock_sillyrename:
+        nfs_unblock_sillyrename(parent);
 out_unlock:
         unlock_kernel();
 out:
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index d29f90d00aa2..b3bb89f7d5d2 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -131,7 +131,7 @@ nfs_file_release(struct inode *inode, struct file *filp)
 {
         /* Ensure that dirty pages are flushed out with the right creds */
         if (filp->f_mode & FMODE_WRITE)
-                filemap_fdatawrite(filp->f_mapping);
+                nfs_wb_all(filp->f_path.dentry->d_inode);
         nfs_inc_stats(inode, NFSIOS_VFSRELEASE);
         return NFS_PROTO(inode)->file_release(inode, filp);
 }
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 6d2f2a3eccf8..db5d96dc6107 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -514,7 +514,7 @@ struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx)
         return ctx;
 }
 
-void put_nfs_open_context(struct nfs_open_context *ctx)
+static void __put_nfs_open_context(struct nfs_open_context *ctx, int wait)
 {
         struct inode *inode = ctx->path.dentry->d_inode;
 
@@ -522,8 +522,12 @@ void put_nfs_open_context(struct nfs_open_context *ctx)
                 return;
         list_del(&ctx->list);
         spin_unlock(&inode->i_lock);
-        if (ctx->state != NULL)
-                nfs4_close_state(&ctx->path, ctx->state, ctx->mode);
+        if (ctx->state != NULL) {
+                if (wait)
+                        nfs4_close_sync(&ctx->path, ctx->state, ctx->mode);
+                else
+                        nfs4_close_state(&ctx->path, ctx->state, ctx->mode);
+        }
         if (ctx->cred != NULL)
                 put_rpccred(ctx->cred);
         dput(ctx->path.dentry);
@@ -531,6 +535,16 @@ void put_nfs_open_context(struct nfs_open_context *ctx)
         kfree(ctx);
 }
 
+void put_nfs_open_context(struct nfs_open_context *ctx)
+{
+        __put_nfs_open_context(ctx, 0);
+}
+
+static void put_nfs_open_context_sync(struct nfs_open_context *ctx)
+{
+        __put_nfs_open_context(ctx, 1);
+}
+
 /*
  * Ensure that mmap has a recent RPC credential for use when writing out
  * shared pages
@@ -577,7 +591,7 @@ static void nfs_file_clear_open_context(struct file *filp)
                 spin_lock(&inode->i_lock);
                 list_move_tail(&ctx->list, &NFS_I(inode)->open_files);
                 spin_unlock(&inode->i_lock);
-                put_nfs_open_context(ctx);
+                put_nfs_open_context_sync(ctx);
         }
 }
 
@@ -1169,6 +1183,9 @@ static void init_once(struct kmem_cache * cachep, void *foo)
         INIT_RADIX_TREE(&nfsi->nfs_page_tree, GFP_ATOMIC);
         nfsi->ncommit = 0;
         nfsi->npages = 0;
+        atomic_set(&nfsi->silly_count, 1);
+        INIT_HLIST_HEAD(&nfsi->silly_list);
+        init_waitqueue_head(&nfsi->waitqueue);
         nfs4_init_once(nfsi);
 }
 
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index d2802b1ca3b9..b35069a2aa9e 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -178,7 +178,7 @@ extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struc
 extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct rpc_cred *);
 extern int nfs4_proc_async_renew(struct nfs_client *, struct rpc_cred *);
 extern int nfs4_proc_renew(struct nfs_client *, struct rpc_cred *);
-extern int nfs4_do_close(struct path *path, struct nfs4_state *state);
+extern int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait);
 extern struct dentry *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
 extern int nfs4_open_revalidate(struct inode *, struct dentry *, int, struct nameidata *);
 extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
@@ -209,6 +209,7 @@ extern void nfs4_drop_state_owner(struct nfs4_state_owner *);
 extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state_owner *);
 extern void nfs4_put_open_state(struct nfs4_state *);
 extern void nfs4_close_state(struct path *, struct nfs4_state *, mode_t);
+extern void nfs4_close_sync(struct path *, struct nfs4_state *, mode_t);
 extern void nfs4_state_set_mode_locked(struct nfs4_state *, mode_t);
 extern void nfs4_schedule_state_recovery(struct nfs_client *);
 extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
@@ -235,6 +236,7 @@ extern struct svc_version nfs4_callback_version1;
 #else
 
 #define nfs4_close_state(a, b, c) do { } while (0)
+#define nfs4_close_sync(a, b, c) do { } while (0)
 
 #endif /* CONFIG_NFS_V4 */
 #endif /* __LINUX_FS_NFS_NFS4_FS.H */
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index cb99fd90a9ac..f03d9d5f5ba4 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1305,7 +1305,7 @@ static const struct rpc_call_ops nfs4_close_ops = {
  *
  * NOTE: Caller must be holding the sp->so_owner semaphore!
  */
-int nfs4_do_close(struct path *path, struct nfs4_state *state)
+int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait)
 {
         struct nfs_server *server = NFS_SERVER(state->inode);
         struct nfs4_closedata *calldata;
@@ -1333,8 +1333,11 @@ int nfs4_do_close(struct path *path, struct nfs4_state *state)
         task = rpc_run_task(server->client, RPC_TASK_ASYNC, &nfs4_close_ops, calldata);
         if (IS_ERR(task))
                 return PTR_ERR(task);
+        status = 0;
+        if (wait)
+                status = rpc_wait_for_completion_task(task);
         rpc_put_task(task);
-        return 0;
+        return status;
 out_free_calldata:
         kfree(calldata);
 out:
@@ -1365,13 +1368,14 @@ static int nfs4_intent_set_file(struct nameidata *nd, struct path *path, struct
         }
         ret = PTR_ERR(filp);
 out_close:
-        nfs4_close_state(path, state, nd->intent.open.flags);
+        nfs4_close_sync(path, state, nd->intent.open.flags);
         return ret;
 }
 
 struct dentry *
 nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
 {
+        struct dentry *parent;
         struct path path = {
                 .mnt = nd->mnt,
                 .dentry = dentry,
@@ -1394,6 +1398,9 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
         cred = rpcauth_lookupcred(NFS_CLIENT(dir)->cl_auth, 0);
         if (IS_ERR(cred))
                 return (struct dentry *)cred;
+        parent = dentry->d_parent;
+        /* Protect against concurrent sillydeletes */
+        nfs_block_sillyrename(parent);
         state = nfs4_do_open(dir, &path, nd->intent.open.flags, &attr, cred);
         put_rpccred(cred);
         if (IS_ERR(state)) {
@@ -1401,12 +1408,14 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
                         d_add(dentry, NULL);
                         nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
                 }
+                nfs_unblock_sillyrename(parent);
                 return (struct dentry *)state;
         }
         res = d_add_unique(dentry, igrab(state->inode));
         if (res != NULL)
                 path.dentry = res;
         nfs_set_verifier(path.dentry, nfs_save_change_attribute(dir));
+        nfs_unblock_sillyrename(parent);
         nfs4_intent_set_file(nd, &path, state);
         return res;
 }
@@ -1444,7 +1453,7 @@ nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, st
                 nfs4_intent_set_file(nd, &path, state);
                 return 1;
         }
-        nfs4_close_state(&path, state, openflags);
+        nfs4_close_sync(&path, state, openflags);
 out_drop:
         d_drop(dentry);
         return 0;
@@ -1898,7 +1907,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
         if (status == 0 && (nd->flags & LOOKUP_OPEN) != 0)
                 status = nfs4_intent_set_file(nd, &path, state);
         else
-                nfs4_close_state(&path, state, flags);
+                nfs4_close_sync(&path, state, flags);
 out:
         return status;
 }
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index bfb36261cecb..23a9a36556bf 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -425,7 +425,7 @@ void nfs4_put_open_state(struct nfs4_state *state)
 /*
  * Close the current file.
  */
-void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
+static void __nfs4_close(struct path *path, struct nfs4_state *state, mode_t mode, int wait)
 {
         struct nfs4_state_owner *owner = state->owner;
         int call_close = 0;
@@ -466,7 +466,17 @@ void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
                 nfs4_put_open_state(state);
                 nfs4_put_state_owner(owner);
         } else
-                nfs4_do_close(path, state);
+                nfs4_do_close(path, state, wait);
+}
+
+void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
+{
+        __nfs4_close(path, state, mode, 0);
+}
+
+void nfs4_close_sync(struct path *path, struct nfs4_state *state, mode_t mode)
+{
+        __nfs4_close(path, state, mode, 1);
 }
 
 /*
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index 1aed850d18f2..ce558c2e4d53 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -11,9 +11,11 @@
 #include <linux/sunrpc/sched.h>
 #include <linux/sunrpc/clnt.h>
 #include <linux/nfs_fs.h>
-
+#include <linux/sched.h>
+#include <linux/wait.h>
 
 struct nfs_unlinkdata {
+        struct hlist_node list;
         struct nfs_removeargs args;
         struct nfs_removeres res;
         struct inode *dir;
@@ -52,6 +54,20 @@ static int nfs_copy_dname(struct dentry *dentry, struct nfs_unlinkdata *data)
         return 0;
 }
 
+static void nfs_free_dname(struct nfs_unlinkdata *data)
+{
+        kfree(data->args.name.name);
+        data->args.name.name = NULL;
+        data->args.name.len = 0;
+}
+
+static void nfs_dec_sillycount(struct inode *dir)
+{
+        struct nfs_inode *nfsi = NFS_I(dir);
+        if (atomic_dec_return(&nfsi->silly_count) == 1)
+                wake_up(&nfsi->waitqueue);
+}
+
 /**
  * nfs_async_unlink_init - Initialize the RPC info
  * task: rpc_task of the sillydelete
@@ -95,6 +111,8 @@ static void nfs_async_unlink_done(struct rpc_task *task, void *calldata)
 static void nfs_async_unlink_release(void *calldata)
 {
         struct nfs_unlinkdata   *data = calldata;
+
+        nfs_dec_sillycount(data->dir);
         nfs_free_unlinkdata(data);
 }
 
@@ -104,33 +122,100 @@ static const struct rpc_call_ops nfs_unlink_ops = {
         .rpc_release = nfs_async_unlink_release,
 };
 
-static int nfs_call_unlink(struct dentry *dentry, struct nfs_unlinkdata *data)
+static int nfs_do_call_unlink(struct dentry *parent, struct inode *dir, struct nfs_unlinkdata *data)
 {
         struct rpc_task *task;
+        struct dentry *alias;
+
+        alias = d_lookup(parent, &data->args.name);
+        if (alias != NULL) {
+                int ret = 0;
+                /*
+                 * Hey, we raced with lookup... See if we need to transfer
+                 * the sillyrename information to the aliased dentry.
+                 */
+                nfs_free_dname(data);
+                spin_lock(&alias->d_lock);
+                if (!(alias->d_flags & DCACHE_NFSFS_RENAMED)) {
+                        alias->d_fsdata = data;
+                        alias->d_flags ^= DCACHE_NFSFS_RENAMED;
+                        ret = 1;
+                }
+                spin_unlock(&alias->d_lock);
+                nfs_dec_sillycount(dir);
+                dput(alias);
+                return ret;
+        }
+        data->dir = igrab(dir);
+        if (!data->dir) {
+                nfs_dec_sillycount(dir);
+                return 0;
+        }
+        data->args.fh = NFS_FH(dir);
+        nfs_fattr_init(&data->res.dir_attr);
+
+        task = rpc_run_task(NFS_CLIENT(dir), RPC_TASK_ASYNC, &nfs_unlink_ops, data);
+        if (!IS_ERR(task))
+                rpc_put_task(task);
+        return 1;
+}
+
+static int nfs_call_unlink(struct dentry *dentry, struct nfs_unlinkdata *data)
+{
         struct dentry *parent;
         struct inode *dir;
+        int ret = 0;
 
-        if (nfs_copy_dname(dentry, data) < 0)
-                goto out_free;
 
         parent = dget_parent(dentry);
         if (parent == NULL)
                 goto out_free;
-        dir = igrab(parent->d_inode);
+        dir = parent->d_inode;
+        if (nfs_copy_dname(dentry, data) == 0)
+                goto out_dput;
+        /* Non-exclusive lock protects against concurrent lookup() calls */
+        spin_lock(&dir->i_lock);
+        if (atomic_inc_not_zero(&NFS_I(dir)->silly_count) == 0) {
+                /* Deferred delete */
+                hlist_add_head(&data->list, &NFS_I(dir)->silly_list);
+                spin_unlock(&dir->i_lock);
+                ret = 1;
+                goto out_dput;
+        }
+        spin_unlock(&dir->i_lock);
+        ret = nfs_do_call_unlink(parent, dir, data);
+out_dput:
         dput(parent);
-        if (dir == NULL)
-                goto out_free;
+out_free:
+        return ret;
+}
 
-        data->dir = dir;
-        data->args.fh = NFS_FH(dir);
-        nfs_fattr_init(&data->res.dir_attr);
+void nfs_block_sillyrename(struct dentry *dentry)
+{
+        struct nfs_inode *nfsi = NFS_I(dentry->d_inode);
 
-        task = rpc_run_task(NFS_CLIENT(dir), RPC_TASK_ASYNC, &nfs_unlink_ops, data);
-        if (!IS_ERR(task))
-                rpc_put_task(task);
-        return 1;
-out_free:
-        return 0;
+        wait_event(nfsi->waitqueue, atomic_cmpxchg(&nfsi->silly_count, 1, 0) == 1);
+}
+
+void nfs_unblock_sillyrename(struct dentry *dentry)
+{
+        struct inode *dir = dentry->d_inode;
+        struct nfs_inode *nfsi = NFS_I(dir);
+        struct nfs_unlinkdata *data;
+
+        atomic_inc(&nfsi->silly_count);
+        spin_lock(&dir->i_lock);
+        while (!hlist_empty(&nfsi->silly_list)) {
+                if (!atomic_inc_not_zero(&nfsi->silly_count))
+                        break;
+                data = hlist_entry(nfsi->silly_list.first, struct nfs_unlinkdata, list);
+                hlist_del(&data->list);
+                spin_unlock(&dir->i_lock);
+                if (nfs_do_call_unlink(dentry, dir, data) == 0)
+                        nfs_free_unlinkdata(data);
+                spin_lock(&dir->i_lock);
+        }
+        spin_unlock(&dir->i_lock);
 }
 
 /**
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 0cf9d1cd9bd2..89527a487ed7 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -174,8 +174,6 @@ static void nfs_mark_uptodate(struct page *page, unsigned int base, unsigned int
                 return;
         if (count != nfs_page_length(page))
                 return;
-        if (count != PAGE_CACHE_SIZE)
-                zero_user_page(page, count, PAGE_CACHE_SIZE - count, KM_USER0);
         SetPageUptodate(page);
 }
 
@@ -627,7 +625,8 @@ static struct nfs_page * nfs_update_request(struct nfs_open_context* ctx,
                                 return ERR_PTR(error);
                         }
                         spin_unlock(&inode->i_lock);
-                        return new;
+                        req = new;
+                        goto zero_page;
                 }
                 spin_unlock(&inode->i_lock);
 
@@ -655,13 +654,23 @@ static struct nfs_page * nfs_update_request(struct nfs_open_context* ctx,
         if (offset < req->wb_offset) {
                 req->wb_offset = offset;
                 req->wb_pgbase = offset;
-                req->wb_bytes = rqend - req->wb_offset;
+                req->wb_bytes = max(end, rqend) - req->wb_offset;
+                goto zero_page;
         }
 
         if (end > rqend)
                 req->wb_bytes = end - req->wb_offset;
 
         return req;
+zero_page:
+        /* If this page might potentially be marked as up to date,
+         * then we need to zero any uninitalised data. */
+        if (req->wb_pgbase == 0 && req->wb_bytes != PAGE_CACHE_SIZE
+                        && !PageUptodate(req->wb_page))
+                zero_user_page(req->wb_page, req->wb_bytes,
+                                PAGE_CACHE_SIZE - req->wb_bytes,
+                                KM_USER0);
+        return req;
 }
 
 int nfs_flush_incompatible(struct file *file, struct page *page)
diff --git a/include/asm-alpha/ide.h b/include/asm-alpha/ide.h
index 2a5cc0b367ab..b7bf68d0407b 100644
--- a/include/asm-alpha/ide.h
+++ b/include/asm-alpha/ide.h
@@ -40,7 +40,6 @@ static inline unsigned long ide_default_io_base(int index)
         }
 }
 
-#define IDE_ARCH_OBSOLETE_INIT
 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
 
 #ifdef CONFIG_PCI
diff --git a/include/asm-arm/ide.h b/include/asm-arm/ide.h
index 4f68c8a5a199..f348fcf3150b 100644
--- a/include/asm-arm/ide.h
+++ b/include/asm-arm/ide.h
@@ -18,7 +18,6 @@
 #endif
 
 #if !defined(CONFIG_ARCH_L7200)
-# define IDE_ARCH_OBSOLETE_INIT
 # ifdef CONFIG_ARCH_CLPS7500
 #  define ide_default_io_ctl(base)      ((base) + 0x206) /* obsolete */
 # else
diff --git a/include/asm-blackfin/ide.h b/include/asm-blackfin/ide.h
index 41b2db46a168..121e272581d6 100644
--- a/include/asm-blackfin/ide.h
+++ b/include/asm-blackfin/ide.h
@@ -20,7 +20,6 @@
 #define MAX_HWIFS       1
 
 /* Legacy ... BLK_DEV_IDECS */
-#define IDE_ARCH_OBSOLETE_INIT
 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
 
 
diff --git a/include/asm-cris/arch-v32/ide.h b/include/asm-cris/arch-v32/ide.h
index 6590f657500d..11296170d057 100644
--- a/include/asm-cris/arch-v32/ide.h
+++ b/include/asm-cris/arch-v32/ide.h
@@ -54,7 +54,7 @@ static inline unsigned long ide_default_io_base(int index)
 #define SUPPORT_VLB_SYNC 0
 
 #define IDE_ARCH_ACK_INTR
-#define ide_ack_intr(hwif)      (hwif)->hw.ack_intr(hwif)
+#define ide_ack_intr(hwif)      ((hwif)->ack_intr(hwif))
 
 #endif /* __KERNEL__ */
 
diff --git a/include/asm-ia64/ide.h b/include/asm-ia64/ide.h
index e928675de352..1ccf23809329 100644
--- a/include/asm-ia64/ide.h
+++ b/include/asm-ia64/ide.h
@@ -46,7 +46,6 @@ static inline unsigned long ide_default_io_base(int index)
         }
 }
 
-#define IDE_ARCH_OBSOLETE_INIT
 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
 
 #ifdef CONFIG_PCI
diff --git a/include/asm-m32r/ide.h b/include/asm-m32r/ide.h
index 4672a49e8760..5d2044e529ab 100644
--- a/include/asm-m32r/ide.h
+++ b/include/asm-m32r/ide.h
@@ -65,7 +65,6 @@ static __inline__ unsigned long ide_default_io_base(int index)
         }
 }
 
-#define IDE_ARCH_OBSOLETE_INIT
 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
 
 #ifdef CONFIG_BLK_DEV_IDEPCI
diff --git a/include/asm-m68k/ide.h b/include/asm-m68k/ide.h
index f9ffb2cbbae8..909c6dfd3851 100644
--- a/include/asm-m68k/ide.h
+++ b/include/asm-m68k/ide.h
@@ -137,7 +137,7 @@ ide_get_lock(irq_handler_t handler, void *data)
 #endif /* CONFIG_BLK_DEV_FALCON_IDE */
 
 #define IDE_ARCH_ACK_INTR
-#define ide_ack_intr(hwif)      ((hwif)->hw.ack_intr ? (hwif)->hw.ack_intr(hwif) : 1)
+#define ide_ack_intr(hwif)      ((hwif)->ack_intr ? (hwif)->ack_intr(hwif) : 1)
 
 #endif /* __KERNEL__ */
 #endif /* _M68K_IDE_H */
diff --git a/include/asm-mips/mach-generic/ide.h b/include/asm-mips/mach-generic/ide.h
index a77128362a7d..4ec2b930dfbb 100644
--- a/include/asm-mips/mach-generic/ide.h
+++ b/include/asm-mips/mach-generic/ide.h
@@ -98,7 +98,6 @@ static __inline__ unsigned long ide_default_io_base(int index)
         }
 }
 
-#define IDE_ARCH_OBSOLETE_INIT
 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
 
 #ifdef CONFIG_BLK_DEV_IDEPCI
diff --git a/include/asm-parisc/ide.h b/include/asm-parisc/ide.h
index b27bf7aeb256..be8760fbc8ee 100644
--- a/include/asm-parisc/ide.h
+++ b/include/asm-parisc/ide.h
@@ -17,7 +17,6 @@
 #define MAX_HWIFS       2
 #endif
 
-#define IDE_ARCH_OBSOLETE_INIT
 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
 
 #define ide_request_irq(irq,hand,flg,dev,id)    request_irq((irq),(hand),(flg),(dev),(id))
diff --git a/include/asm-powerpc/ide.h b/include/asm-powerpc/ide.h
index 1644e44c8757..fd7f5a430f0a 100644
--- a/include/asm-powerpc/ide.h
+++ b/include/asm-powerpc/ide.h
@@ -69,12 +69,11 @@ static __inline__ unsigned long ide_default_io_base(int index)
 
 #ifdef CONFIG_BLK_DEV_MPC8xx_IDE
 #define IDE_ARCH_ACK_INTR  1
-#define ide_ack_intr(hwif) (hwif->hw.ack_intr ? hwif->hw.ack_intr(hwif) : 1)
+#define ide_ack_intr(hwif) ((hwif)->ack_intr ? (hwif)->ack_intr(hwif) : 1)
 #endif
 
 #endif /* __powerpc64__ */
 
-#define IDE_ARCH_OBSOLETE_INIT
 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
 
 #endif /* __KERNEL__ */
diff --git a/include/asm-sh64/ide.h b/include/asm-sh64/ide.h
index c9d84d5f772e..b6e31e8b9410 100644
--- a/include/asm-sh64/ide.h
+++ b/include/asm-sh64/ide.h
@@ -19,7 +19,6 @@
 /* Without this, the initialisation of PCI IDE cards end up calling
  * ide_init_hwif_ports, which won't work. */
 #ifdef CONFIG_BLK_DEV_IDEPCI
-#define IDE_ARCH_OBSOLETE_INIT 1
 #define ide_default_io_ctl(base)        (0)
 #endif
 
diff --git a/include/asm-sparc/ide.h b/include/asm-sparc/ide.h
index a6d735a1310e..404022765fc7 100644
--- a/include/asm-sparc/ide.h
+++ b/include/asm-sparc/ide.h
@@ -18,7 +18,6 @@
 #undef  MAX_HWIFS
 #define MAX_HWIFS       2
 
-#define IDE_ARCH_OBSOLETE_INIT
 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
 
 #define __ide_insl(data_reg, buffer, wcount) \
diff --git a/include/asm-sparc64/ide.h b/include/asm-sparc64/ide.h
index 55149cf933c2..ac7eb210b941 100644
--- a/include/asm-sparc64/ide.h
+++ b/include/asm-sparc64/ide.h
@@ -24,7 +24,6 @@
 # endif
 #endif
 
-#define IDE_ARCH_OBSOLETE_INIT
 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
 
 #define __ide_insl(data_reg, buffer, wcount) \
diff --git a/include/asm-x86/acpi_32.h b/include/asm-x86/acpi_32.h
index 125179adf044..723493e6c851 100644
--- a/include/asm-x86/acpi_32.h
+++ b/include/asm-x86/acpi_32.h
@@ -81,11 +81,7 @@ int __acpi_release_global_lock(unsigned int *lock);
         :"=r"(n_hi), "=r"(n_lo)     \
         :"0"(n_hi), "1"(n_lo))
 
-#ifdef CONFIG_X86_IO_APIC
-extern void check_acpi_pci(void);
-#else
-static inline void check_acpi_pci(void) { }
-#endif
+extern void early_quirks(void);
 
 #ifdef CONFIG_ACPI
 extern int acpi_lapic;
diff --git a/include/asm-x86/compat.h b/include/asm-x86/compat.h
index 53cb96b68a62..66ba7987184a 100644
--- a/include/asm-x86/compat.h
+++ b/include/asm-x86/compat.h
@@ -6,6 +6,7 @@
  */
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <asm/user32.h>
 
 #define COMPAT_USER_HZ  100
 
@@ -181,6 +182,11 @@ struct compat_shmid64_ds {
 };
 
 /*
+ * The type of struct elf_prstatus.pr_reg in compatible core dumps.
+ */
+typedef struct user_regs_struct32 compat_elf_gregset_t;
+
+/*
  * A pointer passed in from user mode. This should not
  * be used for syscall parameters, just declare them
  * as pointers because the syscall entry code will have
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index ac991b5ca0fd..7d9c938e69fd 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -20,6 +20,16 @@ extern struct desc_struct cpu_gdt_table[GDT_ENTRIES];
 #define load_LDT_desc() asm volatile("lldt %w0"::"r" (GDT_ENTRY_LDT*8))
 #define clear_LDT()  asm volatile("lldt %w0"::"r" (0))
 
+static inline unsigned long __store_tr(void)
+{
+       unsigned long tr;
+
+       asm volatile ("str %w0":"=r" (tr));
+       return tr;
+}
+
+#define store_tr(tr) (tr) = __store_tr()
+
 /*
  * This is the ldt that every process will get unless we need
  * something other than this.
@@ -31,6 +41,16 @@ extern struct desc_ptr cpu_gdt_descr[];
 /* the cpu gdt accessor */
 #define cpu_gdt(_cpu) ((struct desc_struct *)cpu_gdt_descr[_cpu].address)
 
+static inline void load_gdt(const struct desc_ptr *ptr)
+{
+        asm volatile("lgdt %w0"::"m" (*ptr));
+}
+
+static inline void store_gdt(struct desc_ptr *ptr)
+{
+       asm("sgdt %w0":"=m" (*ptr));
+}
+
 static inline void _set_gate(void *adr, unsigned type, unsigned long func, unsigned dpl, unsigned ist)  
 {
         struct gate_struct s;   
@@ -71,6 +91,16 @@ static inline void set_system_gate_ist(int nr, void *func, unsigned ist)
         _set_gate(&idt_table[nr], GATE_INTERRUPT, (unsigned long) func, 3, ist);
 }
 
+static inline void load_idt(const struct desc_ptr *ptr)
+{
+        asm volatile("lidt %w0"::"m" (*ptr));
+}
+
+static inline void store_idt(struct desc_ptr *dtr)
+{
+       asm("sidt %w0":"=m" (*dtr));
+}
+
 static inline void set_tssldt_descriptor(void *ptr, unsigned long tss, unsigned type, 
                                          unsigned size) 
 { 
diff --git a/include/asm-x86/geode.h b/include/asm-x86/geode.h
index d94898831bac..771af336734f 100644
--- a/include/asm-x86/geode.h
+++ b/include/asm-x86/geode.h
@@ -38,6 +38,8 @@ extern int geode_get_dev_base(unsigned int dev);
 #define MSR_LBAR_ACPI           0x5140000E
 #define MSR_LBAR_PMS            0x5140000F
 
+#define MSR_DIVIL_SOFT_RESET    0x51400017
+
 #define MSR_PIC_YSEL_LOW        0x51400020
 #define MSR_PIC_YSEL_HIGH       0x51400021
 #define MSR_PIC_ZSEL_LOW        0x51400022
diff --git a/include/asm-x86/hpet.h b/include/asm-x86/hpet.h
index f95d79250a4d..b1f3c1ea55d9 100644
--- a/include/asm-x86/hpet.h
+++ b/include/asm-x86/hpet.h
@@ -58,6 +58,7 @@
 /* hpet memory map physical address */
 extern unsigned long hpet_address;
 extern unsigned long force_hpet_address;
+extern int hpet_force_user;
 extern int is_hpet_enabled(void);
 extern int hpet_enable(void);
 extern unsigned long hpet_readl(unsigned long a);
diff --git a/include/asm-x86/ide.h b/include/asm-x86/ide.h
index e7817a3d6578..42130adf9c7c 100644
--- a/include/asm-x86/ide.h
+++ b/include/asm-x86/ide.h
@@ -62,7 +62,6 @@ static __inline__ unsigned long ide_default_io_base(int index)
         }
 }
 
-#define IDE_ARCH_OBSOLETE_INIT
 #define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
 
 #ifdef CONFIG_BLK_DEV_IDEPCI
diff --git a/include/asm-x86/io_apic_64.h b/include/asm-x86/io_apic_64.h
index d9f2e54324d5..e2c13675ee4e 100644
--- a/include/asm-x86/io_apic_64.h
+++ b/include/asm-x86/io_apic_64.h
@@ -133,4 +133,6 @@ void enable_NMI_through_LVT0 (void * dummy);
 
 extern spinlock_t i8259A_lock;
 
+extern int timer_over_8254;
+
 #endif
diff --git a/include/asm-x86/ipi.h b/include/asm-x86/ipi.h
index a7c75ea408a8..6d011bd6067d 100644
--- a/include/asm-x86/ipi.h
+++ b/include/asm-x86/ipi.h
@@ -119,7 +119,7 @@ static inline void send_IPI_mask_sequence(cpumask_t mask, int vector)
          */
         local_irq_save(flags);
         for_each_cpu_mask(query_cpu, mask) {
-                __send_IPI_dest_field(x86_cpu_to_apicid[query_cpu],
+                __send_IPI_dest_field(per_cpu(x86_cpu_to_apicid, query_cpu),
                                       vector, APIC_DEST_PHYSICAL);
         }
         local_irq_restore(flags);
diff --git a/include/asm-x86/irq_32.h b/include/asm-x86/irq_32.h
index 36f310632c49..aca9c96e8e6b 100644
--- a/include/asm-x86/irq_32.h
+++ b/include/asm-x86/irq_32.h
@@ -45,4 +45,7 @@ unsigned int do_IRQ(struct pt_regs *regs);
 void init_IRQ(void);
 void __init native_init_IRQ(void);
 
+/* Interrupt vector management */
+extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
+
 #endif /* _ASM_IRQ_H */
diff --git a/include/asm-x86/msr-index.h b/include/asm-x86/msr-index.h
index a02eb2991349..a4944732be04 100644
--- a/include/asm-x86/msr-index.h
+++ b/include/asm-x86/msr-index.h
@@ -73,8 +73,32 @@
 #define MSR_P6_EVNTSEL0                 0x00000186
 #define MSR_P6_EVNTSEL1                 0x00000187
 
-/* K7/K8 MSRs. Not complete. See the architecture manual for a more
+/* AMD64 MSRs. Not complete. See the architecture manual for a more
    complete list. */
+
+#define MSR_AMD64_IBSFETCHCTL           0xc0011030
+#define MSR_AMD64_IBSFETCHLINAD         0xc0011031
+#define MSR_AMD64_IBSFETCHPHYSAD        0xc0011032
+#define MSR_AMD64_IBSOPCTL              0xc0011033
+#define MSR_AMD64_IBSOPRIP              0xc0011034
+#define MSR_AMD64_IBSOPDATA             0xc0011035
+#define MSR_AMD64_IBSOPDATA2            0xc0011036
+#define MSR_AMD64_IBSOPDATA3            0xc0011037
+#define MSR_AMD64_IBSDCLINAD            0xc0011038
+#define MSR_AMD64_IBSDCPHYSAD           0xc0011039
+#define MSR_AMD64_IBSCTL                0xc001103a
+
+/* K8 MSRs */
+#define MSR_K8_TOP_MEM1                 0xc001001a
+#define MSR_K8_TOP_MEM2                 0xc001001d
+#define MSR_K8_SYSCFG                   0xc0010010
+#define MSR_K8_HWCR                     0xc0010015
+#define MSR_K8_ENABLE_C1E               0xc0010055
+#define K8_MTRRFIXRANGE_DRAM_ENABLE     0x00040000 /* MtrrFixDramEn bit    */
+#define K8_MTRRFIXRANGE_DRAM_MODIFY     0x00080000 /* MtrrFixDramModEn bit */
+#define K8_MTRR_RDMEM_WRMEM_MASK        0x18181818 /* Mask: RdMem|WrMem    */
+
+/* K7 MSRs */
 #define MSR_K7_EVNTSEL0                 0xc0010000
 #define MSR_K7_PERFCTR0                 0xc0010004
 #define MSR_K7_EVNTSEL1                 0xc0010001
@@ -83,20 +107,10 @@
 #define MSR_K7_PERFCTR2                 0xc0010006
 #define MSR_K7_EVNTSEL3                 0xc0010003
 #define MSR_K7_PERFCTR3                 0xc0010007
-#define MSR_K8_TOP_MEM1                 0xc001001a
 #define MSR_K7_CLK_CTL                  0xc001001b
-#define MSR_K8_TOP_MEM2                 0xc001001d
-#define MSR_K8_SYSCFG                   0xc0010010
-
-#define K8_MTRRFIXRANGE_DRAM_ENABLE     0x00040000 /* MtrrFixDramEn bit    */
-#define K8_MTRRFIXRANGE_DRAM_MODIFY     0x00080000 /* MtrrFixDramModEn bit */
-#define K8_MTRR_RDMEM_WRMEM_MASK        0x18181818 /* Mask: RdMem|WrMem    */
-
 #define MSR_K7_HWCR                     0xc0010015
-#define MSR_K8_HWCR                     0xc0010015
 #define MSR_K7_FID_VID_CTL              0xc0010041
 #define MSR_K7_FID_VID_STATUS           0xc0010042
-#define MSR_K8_ENABLE_C1E               0xc0010055
 
 /* K6 MSRs */
 #define MSR_K6_EFER                     0xc0000080
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index 83800e7496ee..13976b086837 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -79,6 +79,7 @@ struct cpuinfo_x86 {
         unsigned char booted_cores;     /* number of cores as seen by OS */
         __u8 phys_proc_id;              /* Physical processor id. */
         __u8 cpu_core_id;               /* Core id */
+        __u8 cpu_index;                 /* index into per_cpu list */
 #endif
 } __attribute__((__aligned__(SMP_CACHE_BYTES)));
 
@@ -103,14 +104,19 @@ extern struct tss_struct doublefault_tss;
 DECLARE_PER_CPU(struct tss_struct, init_tss);
 
 #ifdef CONFIG_SMP
-extern struct cpuinfo_x86 cpu_data[];
-#define current_cpu_data cpu_data[smp_processor_id()]
+DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
+#define cpu_data(cpu)           per_cpu(cpu_info, cpu)
+#define current_cpu_data        cpu_data(smp_processor_id())
 #else
-#define cpu_data (&boot_cpu_data)
-#define current_cpu_data boot_cpu_data
+#define cpu_data(cpu)           boot_cpu_data
+#define current_cpu_data        boot_cpu_data
 #endif
 
-extern  int cpu_llc_id[NR_CPUS];
+/*
+ * the following now lives in the per cpu area:
+ * extern       int cpu_llc_id[NR_CPUS];
+ */
+DECLARE_PER_CPU(u8, cpu_llc_id);
 extern char ignore_fpu_irq;
 
 void __init cpu_detect(struct cpuinfo_x86 *c);
diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h
index f422becbddd9..e4f19970a82b 100644
--- a/include/asm-x86/processor_64.h
+++ b/include/asm-x86/processor_64.h
@@ -74,6 +74,7 @@ struct cpuinfo_x86 {
         __u8    booted_cores;   /* number of cores as seen by OS */
         __u8    phys_proc_id;   /* Physical Processor id. */
         __u8    cpu_core_id;    /* Core id. */
+        __u8    cpu_index;      /* index into per_cpu list */
 #endif
 } ____cacheline_aligned;
 
@@ -88,11 +89,12 @@ struct cpuinfo_x86 {
 #define X86_VENDOR_UNKNOWN 0xff
 
 #ifdef CONFIG_SMP
-extern struct cpuinfo_x86 cpu_data[];
-#define current_cpu_data cpu_data[smp_processor_id()]
+DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
+#define cpu_data(cpu)           per_cpu(cpu_info, cpu)
+#define current_cpu_data        cpu_data(smp_processor_id())
 #else
-#define cpu_data (&boot_cpu_data)
-#define current_cpu_data boot_cpu_data
+#define cpu_data(cpu)           boot_cpu_data
+#define current_cpu_data        boot_cpu_data
 #endif
 
 extern char ignore_irq13;
@@ -390,12 +392,6 @@ static inline void sync_core(void)
         asm volatile("cpuid" : "=a" (tmp) : "0" (1) : "ebx","ecx","edx","memory");
 } 
 
-#define ARCH_HAS_PREFETCH
-static inline void prefetch(void *x) 
-{ 
-        asm volatile("prefetcht0 (%0)" :: "r" (x));
-} 
-
 #define ARCH_HAS_PREFETCHW 1
 static inline void prefetchw(void *x) 
 { 
diff --git a/include/asm-x86/proto.h b/include/asm-x86/proto.h
index c44a3a93b5a4..dabba55f7ed8 100644
--- a/include/asm-x86/proto.h
+++ b/include/asm-x86/proto.h
@@ -83,8 +83,6 @@ extern unsigned tsc_khz;
 extern int reboot_force;
 extern int notsc_setup(char *);
 
-extern int timer_over_8254;
-
 extern int gsi_irq_sharing(int gsi);
 
 extern int force_mwait;
diff --git a/include/asm-x86/ptrace_32.h b/include/asm-x86/ptrace_32.h
index 6002597b9e12..78d063dabe0a 100644
--- a/include/asm-x86/ptrace_32.h
+++ b/include/asm-x86/ptrace_32.h
@@ -55,6 +55,8 @@ static inline int v8086_mode(struct pt_regs *regs)
 }
 
 #define instruction_pointer(regs) ((regs)->eip)
+#define frame_pointer(regs) ((regs)->ebp)
+#define stack_pointer(regs) ((regs)->esp)
 #define regs_return_value(regs) ((regs)->eax)
 
 extern unsigned long profile_pc(struct pt_regs *regs);
diff --git a/include/asm-x86/ptrace_64.h b/include/asm-x86/ptrace_64.h
index 7f166ccb0606..7bfe61e1b705 100644
--- a/include/asm-x86/ptrace_64.h
+++ b/include/asm-x86/ptrace_64.h
@@ -40,6 +40,8 @@ struct pt_regs {
 #define user_mode(regs) (!!((regs)->cs & 3))
 #define user_mode_vm(regs) user_mode(regs)
 #define instruction_pointer(regs) ((regs)->rip)
+#define frame_pointer(regs) ((regs)->rbp)
+#define stack_pointer(regs) ((regs)->rsp)
 #define regs_return_value(regs) ((regs)->rax)
 
 extern unsigned long profile_pc(struct pt_regs *regs);
diff --git a/include/asm-x86/smp_32.h b/include/asm-x86/smp_32.h
index 1f576a93368f..7056d8684522 100644
--- a/include/asm-x86/smp_32.h
+++ b/include/asm-x86/smp_32.h
@@ -39,9 +39,11 @@ extern void lock_ipi_call_lock(void);
 extern void unlock_ipi_call_lock(void);
 
 #define MAX_APICID 256
-extern u8 x86_cpu_to_apicid[];
+extern u8 __initdata x86_cpu_to_apicid_init[];
+extern void *x86_cpu_to_apicid_ptr;
+DECLARE_PER_CPU(u8, x86_cpu_to_apicid);
 
-#define cpu_physical_id(cpu)    x86_cpu_to_apicid[cpu]
+#define cpu_physical_id(cpu)    per_cpu(x86_cpu_to_apicid, cpu)
 
 extern void set_cpu_sibling_map(int cpu);
 
diff --git a/include/asm-x86/smp_64.h b/include/asm-x86/smp_64.h
index d30e9b684fdd..6f0e0273b646 100644
--- a/include/asm-x86/smp_64.h
+++ b/include/asm-x86/smp_64.h
@@ -37,6 +37,8 @@ extern void lock_ipi_call_lock(void);
 extern void unlock_ipi_call_lock(void);
 extern int smp_num_siblings;
 extern void smp_send_reschedule(int cpu);
+extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *),
+                                  void *info, int wait);
 
 /*
  * cpu_sibling_map and cpu_core_map now live
@@ -47,7 +49,7 @@ extern void smp_send_reschedule(int cpu);
  */
 DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
 DECLARE_PER_CPU(cpumask_t, cpu_core_map);
-extern u8 cpu_llc_id[NR_CPUS];
+DECLARE_PER_CPU(u8, cpu_llc_id);
 
 #define SMP_TRAMPOLINE_BASE 0x6000
 
@@ -84,7 +86,9 @@ static inline int hard_smp_processor_id(void)
  * Some lowlevel functions might want to know about
  * the real APIC ID <-> CPU # mapping.
  */
-extern u8 x86_cpu_to_apicid[NR_CPUS];   /* physical ID */
+extern u8 __initdata x86_cpu_to_apicid_init[];
+extern void *x86_cpu_to_apicid_ptr;
+DECLARE_PER_CPU(u8, x86_cpu_to_apicid); /* physical ID */
 extern u8 bios_cpu_apicid[];
 
 static inline int cpu_present_to_apicid(int mps_cpu)
@@ -115,8 +119,9 @@ static __inline int logical_smp_processor_id(void)
 }
 
 #ifdef CONFIG_SMP
-#define cpu_physical_id(cpu)            x86_cpu_to_apicid[cpu]
+#define cpu_physical_id(cpu)            per_cpu(x86_cpu_to_apicid, cpu)
 #else
+extern unsigned int boot_cpu_id;
 #define cpu_physical_id(cpu)            boot_cpu_id
 #endif /* !CONFIG_SMP */
 #endif
diff --git a/include/asm-x86/system_32.h b/include/asm-x86/system_32.h
index db6283eb5e46..ef8468883bac 100644
--- a/include/asm-x86/system_32.h
+++ b/include/asm-x86/system_32.h
@@ -315,5 +315,6 @@ extern unsigned long arch_align_stack(unsigned long sp);
 extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
 
 void default_idle(void);
+void __show_registers(struct pt_regs *, int all);
 
 #endif
diff --git a/include/asm-x86/topology_32.h b/include/asm-x86/topology_32.h
index ae1074603c4b..9040f5a61278 100644
--- a/include/asm-x86/topology_32.h
+++ b/include/asm-x86/topology_32.h
@@ -28,8 +28,8 @@
 #define _ASM_I386_TOPOLOGY_H
 
 #ifdef CONFIG_X86_HT
-#define topology_physical_package_id(cpu)       (cpu_data[cpu].phys_proc_id)
-#define topology_core_id(cpu)                   (cpu_data[cpu].cpu_core_id)
+#define topology_physical_package_id(cpu)       (cpu_data(cpu).phys_proc_id)
+#define topology_core_id(cpu)                   (cpu_data(cpu).cpu_core_id)
 #define topology_core_siblings(cpu)             (per_cpu(cpu_core_map, cpu))
 #define topology_thread_siblings(cpu)           (per_cpu(cpu_sibling_map, cpu))
 #endif
diff --git a/include/asm-x86/topology_64.h b/include/asm-x86/topology_64.h
index c0c93d744673..a718dda037e0 100644
--- a/include/asm-x86/topology_64.h
+++ b/include/asm-x86/topology_64.h
@@ -56,8 +56,8 @@ extern int __node_distance(int, int);
 #endif
 
 #ifdef CONFIG_SMP
-#define topology_physical_package_id(cpu)       (cpu_data[cpu].phys_proc_id)
-#define topology_core_id(cpu)                   (cpu_data[cpu].cpu_core_id)
+#define topology_physical_package_id(cpu)       (cpu_data(cpu).phys_proc_id)
+#define topology_core_id(cpu)                   (cpu_data(cpu).cpu_core_id)
 #define topology_core_siblings(cpu)             (per_cpu(cpu_core_map, cpu))
 #define topology_thread_siblings(cpu)           (per_cpu(cpu_sibling_map, cpu))
 #define mc_capable()                    (boot_cpu_data.x86_max_cores > 1)
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 499f5373e213..37c66d1254b5 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -183,11 +183,14 @@ int dm_resume(struct mapped_device *md);
  */
 uint32_t dm_get_event_nr(struct mapped_device *md);
 int dm_wait_event(struct mapped_device *md, int event_nr);
+uint32_t dm_next_uevent_seq(struct mapped_device *md);
+void dm_uevent_add(struct mapped_device *md, struct list_head *elist);
 
 /*
  * Info functions.
  */
 const char *dm_device_name(struct mapped_device *md);
+int dm_copy_name_and_uuid(struct mapped_device *md, char *name, char *uuid);
 struct gendisk *dm_disk(struct mapped_device *md);
 int dm_suspended(struct mapped_device *md);
 int dm_noflush_suspending(struct dm_target *ti);
diff --git a/include/linux/dm-ioctl.h b/include/linux/dm-ioctl.h
index b93486107821..523281c5b7f5 100644
--- a/include/linux/dm-ioctl.h
+++ b/include/linux/dm-ioctl.h
@@ -131,6 +131,7 @@ struct dm_ioctl {
         char name[DM_NAME_LEN]; /* device name */
         char uuid[DM_UUID_LEN]; /* unique identifier for
                                  * the block device */
+        char data[7];           /* padding or data */
 };
 
 /*
@@ -285,9 +286,9 @@ typedef char ioctl_struct[308];
 #define DM_DEV_SET_GEOMETRY     _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
 
 #define DM_VERSION_MAJOR        4
-#define DM_VERSION_MINOR        11
+#define DM_VERSION_MINOR        12
 #define DM_VERSION_PATCHLEVEL   0
-#define DM_VERSION_EXTRA        "-ioctl (2006-10-12)"
+#define DM_VERSION_EXTRA        "-ioctl (2007-10-02)"
 
 /* Status bits */
 #define DM_READONLY_FLAG        (1 << 0) /* In/Out */
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 19db0a4ae447..2e4b8dd03cfe 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -192,22 +192,20 @@ typedef unsigned char	byte;	/* used everywhere */
 struct hwif_s;
 typedef int (ide_ack_intr_t)(struct hwif_s *);
 
-#ifndef NO_DMA
-#define NO_DMA  255
-#endif
-
 /*
  * hwif_chipset_t is used to keep track of the specific hardware
  * chipset used by each IDE interface, if known.
  */
-typedef enum {  ide_unknown,    ide_generic,    ide_pci,
+enum {          ide_unknown,    ide_generic,    ide_pci,
                 ide_cmd640,     ide_dtc2278,    ide_ali14xx,
                 ide_qd65xx,     ide_umc8672,    ide_ht6560b,
                 ide_rz1000,     ide_trm290,
                 ide_cmd646,     ide_cy82c693,   ide_4drives,
                 ide_pmac,       ide_etrax100,   ide_acorn,
                 ide_au1xxx, ide_forced
-} hwif_chipset_t;
+};
+
+typedef u8 hwif_chipset_t;
 
 /*
  * Structure to hold all information about the location of this port
@@ -215,22 +213,16 @@ typedef enum {	ide_unknown,	ide_generic,	ide_pci,
 typedef struct hw_regs_s {
         unsigned long   io_ports[IDE_NR_PORTS]; /* task file registers */
         int             irq;                    /* our irq number */
-        int             dma;                    /* our dma entry */
         ide_ack_intr_t  *ack_intr;              /* acknowledge interrupt */
         hwif_chipset_t  chipset;
         struct device   *dev;
 } hw_regs_t;
 
-/*
- * Register new hardware with ide
- */
-int ide_register_hw(hw_regs_t *, int, struct hwif_s **);
-int ide_register_hw_with_fixup(hw_regs_t *, int, struct hwif_s **,
-                               void (*)(struct hwif_s *));
+struct hwif_s * ide_find_port(unsigned long);
+
+int ide_register_hw(hw_regs_t *, void (*)(struct hwif_s *), int,
+                    struct hwif_s **);
 
-/*
- * Set up hw_regs_t structure before calling ide_register_hw (optional)
- */
 void ide_setup_ports(   hw_regs_t *hw,
                         unsigned long base,
                         int *offsets,
@@ -268,11 +260,7 @@ static inline void ide_std_init_ports(hw_regs_t *hw,
 # define ide_init_default_irq(base)     (0)
 #endif
 
-/*
- * ide_init_hwif_ports() is OBSOLETE and will be removed in 2.7 series.
- * New ports shouldn't define IDE_ARCH_OBSOLETE_INIT in <asm/ide.h>.
- */
-#ifdef IDE_ARCH_OBSOLETE_INIT
+#ifdef CONFIG_IDE_ARCH_OBSOLETE_INIT
 static inline void ide_init_hwif_ports(hw_regs_t *hw,
                                        unsigned long io_addr,
                                        unsigned long ctl_addr,
@@ -302,7 +290,7 @@ static inline void ide_init_hwif_ports(hw_regs_t *hw,
         if (io_addr || ctl_addr)
                 printk(KERN_WARNING "%s: must not be called\n", __FUNCTION__);
 }
-#endif /* IDE_ARCH_OBSOLETE_INIT */
+#endif /* CONFIG_IDE_ARCH_OBSOLETE_INIT */
 
 /* Currently only m68k, apus and m8xx need it */
 #ifndef IDE_ARCH_ACK_INTR
@@ -363,7 +351,6 @@ typedef union {
  * ATA DATA Register Special.
  * ATA NSECTOR Count Register().
  * ATAPI Byte Count Register.
- * Channel index ordering pairs.
  */
 typedef union {
         unsigned all                    :16;
@@ -378,7 +365,7 @@ typedef union {
 #error "Please fix <asm/byteorder.h>"
 #endif
         } b;
-} ata_nsector_t, ata_data_t, atapi_bcount_t, ata_index_t;
+} ata_nsector_t, ata_data_t, atapi_bcount_t;
 
 /*
  * ATA-IDE Select Register, aka Device-Head
@@ -657,7 +644,7 @@ typedef struct ide_drive_s {
     ((1<<ide_pci)|(1<<ide_cmd646)|(1<<ide_ali14xx))
 #define IDE_CHIPSET_IS_PCI(c)   ((IDE_CHIPSET_PCI_MASK >> (c)) & 1)
 
-struct ide_pci_device_s;
+struct ide_port_info;
 
 typedef struct hwif_s {
         struct hwif_s *next;            /* for linked-list in ide_hwgroup_t */
@@ -672,7 +659,6 @@ typedef struct hwif_s {
         unsigned long   sata_scr[SATA_NR_PORTS];
         unsigned long   sata_misc[SATA_NR_PORTS];
 
-        hw_regs_t       hw;             /* Hardware info */
         ide_drive_t     drives[MAX_DRIVES];     /* drive info */
 
         u8 major;       /* our major number */
@@ -694,7 +680,9 @@ typedef struct hwif_s {
         hwif_chipset_t chipset; /* sub-module for tuning.. */
 
         struct pci_dev  *pci_dev;       /* for pci chipsets */
-        struct ide_pci_device_s *cds;   /* chipset device struct */
+        const struct ide_port_info *cds;        /* chipset device struct */
+
+        ide_ack_intr_t *ack_intr;
 
         void (*rw_disk)(ide_drive_t *, struct request *);
 
@@ -725,6 +713,8 @@ typedef struct hwif_s {
         u8 (*mdma_filter)(ide_drive_t *);
         u8 (*udma_filter)(ide_drive_t *);
 
+        void (*fixup)(struct hwif_s *);
+
         void (*ata_input_data)(ide_drive_t *, void *, u32);
         void (*ata_output_data)(ide_drive_t *, void *, u32);
 
@@ -841,8 +831,6 @@ typedef struct hwgroup_s {
 
                 /* for pci chipsets */
         struct pci_dev *pci_dev;
-                /* chipset device struct */
-        struct ide_pci_device_s *cds;
 
                 /* current request */
         struct request *rq;
@@ -1030,36 +1018,16 @@ extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs);
 int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
                              int uptodate, int nr_sectors);
 
-/*
- * This is used on exit from the driver to designate the next irq handler
- * and also to start the safety timer.
- */
 extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry);
 
-/*
- * This is used on exit from the driver to designate the next irq handler
- * and start the safety time safely and atomically from the IRQ handler
- * with respect to the command issue (which it also does)
- */
 extern void ide_execute_command(ide_drive_t *, task_ioreg_t cmd, ide_handler_t *, unsigned int, ide_expiry_t *);
 
 ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8);
 
-/*
- * ide_error() takes action based on the error returned by the controller.
- * The caller should return immediately after invoking this.
- *
- * (drive, msg, status)
- */
 ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat);
 
 ide_startstop_t __ide_abort(ide_drive_t *, struct request *);
 
-/*
- * Abort a running command on the controller triggering the abort
- * from a host side, non error situation
- * (drive, msg)
- */
 extern ide_startstop_t ide_abort(ide_drive_t *, const char *);
 
 extern void ide_fix_driveid(struct hd_driveid *);
@@ -1075,15 +1043,8 @@ extern void ide_fixstring(u8 *, const int, const int);
 
 int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long);
 
-/*
- * Start a reset operation for an IDE interface.
- * The caller should return immediately after invoking this.
- */
 extern ide_startstop_t ide_do_reset (ide_drive_t *);
 
-/*
- * This function is intended to be used prior to invoking ide_do_drive_cmd().
- */
 extern void ide_init_drive_cmd (struct request *rq);
 
 /*
@@ -1098,13 +1059,6 @@ typedef enum {
 
 extern int ide_do_drive_cmd(ide_drive_t *, struct request *, ide_action_t);
 
-/*
- * Clean up after success/failure of an explicit drive cmd.
- * stat/err are used only when (HWGROUP(drive)->rq->cmd == IDE_DRIVE_CMD).
- * stat/err are used only when (HWGROUP(drive)->rq->cmd == IDE_DRIVE_TASK_MASK).
- *
- * (ide_drive_t *drive, u8 stat, u8 err)
- */
 extern void ide_end_drive_cmd(ide_drive_t *, u8, u8);
 
 /*
@@ -1177,10 +1131,6 @@ extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *);
 
 extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout);
 
-/*
- * ide_stall_queue() can be used by a drive to give excess bandwidth back
- * to the hwgroup by sleeping for timeout jiffies.
- */
 extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout);
 
 extern int ide_spin_wait_hwgroup(ide_drive_t *);
@@ -1200,8 +1150,8 @@ extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *o
 #define ide_pci_register_driver(d) pci_register_driver(d)
 #endif
 
-void ide_pci_setup_ports(struct pci_dev *, struct ide_pci_device_s *, int, ata_index_t *);
-extern void ide_setup_pci_noise (struct pci_dev *dev, struct ide_pci_device_s *d);
+void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, u8 *);
+void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *);
 
 extern void default_hwif_iops(ide_hwif_t *);
 extern void default_hwif_mmiops(ide_hwif_t *);
@@ -1261,6 +1211,14 @@ enum {
         IDE_HFLAG_SERIALIZE             = (1 << 20),
         /* use legacy IRQs */
         IDE_HFLAG_LEGACY_IRQS           = (1 << 21),
+        /* force use of legacy IRQs */
+        IDE_HFLAG_FORCE_LEGACY_IRQS     = (1 << 22),
+        /* limit LBA48 requests to 256 sectors */
+        IDE_HFLAG_RQSIZE_256            = (1 << 23),
+        /* use 32-bit I/O ops */
+        IDE_HFLAG_IO_32BIT              = (1 << 24),
+        /* unmask IRQs */
+        IDE_HFLAG_UNMASK_IRQS           = (1 << 25),
 };
 
 #ifdef CONFIG_BLK_DEV_OFFBOARD
@@ -1269,7 +1227,7 @@ enum {
 # define IDE_HFLAG_OFF_BOARD    0
 #endif
 
-typedef struct ide_pci_device_s {
+struct ide_port_info {
         char                    *name;
         unsigned int            (*init_chipset)(struct pci_dev *, const char *);
         void                    (*init_iops)(ide_hwif_t *);
@@ -1277,17 +1235,17 @@ typedef struct ide_pci_device_s {
         void                    (*init_dma)(ide_hwif_t *, unsigned long);
         void                    (*fixup)(ide_hwif_t *);
         ide_pci_enablebit_t     enablebits[2];
+        hwif_chipset_t          chipset;
         unsigned int            extra;
-        struct ide_pci_device_s *next;
         u32                     host_flags;
         u8                      pio_mask;
         u8                      swdma_mask;
         u8                      mwdma_mask;
         u8                      udma_mask;
-} ide_pci_device_t;
+};
 
-extern int ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *);
-extern int ide_setup_pci_devices(struct pci_dev *, struct pci_dev *, ide_pci_device_t *);
+int ide_setup_pci_device(struct pci_dev *, const struct ide_port_info *);
+int ide_setup_pci_devices(struct pci_dev *, struct pci_dev *, const struct ide_port_info *);
 
 void ide_map_sg(ide_drive_t *, struct request *);
 void ide_init_sg_cmd(ide_drive_t *, struct request *);
@@ -1370,8 +1328,7 @@ void ide_unregister_region(struct gendisk *);
 
 void ide_undecoded_slave(ide_hwif_t *);
 
-int probe_hwif_init_with_fixup(ide_hwif_t *, void (*)(ide_hwif_t *));
-extern int probe_hwif_init(ide_hwif_t *);
+int ide_device_add(u8 idx[4]);
 
 static inline void *ide_get_hwifdata (ide_hwif_t * hwif)
 {
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index c5164c257f71..e82a6ebc725d 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -160,6 +160,12 @@ struct nfs_inode {
         /* Open contexts for shared mmap writes */
         struct list_head        open_files;
 
+        /* Number of in-flight sillydelete RPC calls */
+        atomic_t                silly_count;
+        /* List of deferred sillydelete requests */
+        struct hlist_head       silly_list;
+        wait_queue_head_t       waitqueue;
+
 #ifdef CONFIG_NFS_V4
         struct nfs4_cached_acl  *nfs4_acl;
         /* NFSv4 state */
@@ -394,6 +400,8 @@ extern void nfs_release_automount_timer(void);
  */
 extern int  nfs_async_unlink(struct inode *dir, struct dentry *dentry);
 extern void nfs_complete_unlink(struct dentry *dentry, struct inode *);
+extern void nfs_block_sillyrename(struct dentry *dentry);
+extern void nfs_unblock_sillyrename(struct dentry *dentry);
 
 /*
  * linux/fs/nfs/write.c
diff --git a/include/linux/prefetch.h b/include/linux/prefetch.h
index 1adfe668d031..af7c36a5a521 100644
--- a/include/linux/prefetch.h
+++ b/include/linux/prefetch.h
@@ -34,17 +34,12 @@
         
 */
 
-/*
- *      These cannot be do{}while(0) macros. See the mental gymnastics in
- *      the loop macro.
- */
- 
 #ifndef ARCH_HAS_PREFETCH
-static inline void prefetch(const void *x) {;}
+#define prefetch(x) __builtin_prefetch(x)
 #endif
 
 #ifndef ARCH_HAS_PREFETCHW
-static inline void prefetchw(const void *x) {;}
+#define prefetchw(x) __builtin_prefetch(x,1)
 #endif
 
 #ifndef ARCH_HAS_SPINLOCK_PREFETCH
diff --git a/kernel/Makefile b/kernel/Makefile
index 05c3e6df8597..79f017e09fbd 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -9,8 +9,9 @@ obj-y     = sched.o fork.o exec_domain.o panic.o printk.o profile.o \
             rcupdate.o extable.o params.o posix-timers.o \
             kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \
             hrtimer.o rwsem.o latency.o nsproxy.o srcu.o \
-            utsname.o sysctl_check.o notifier.o
+            utsname.o notifier.o
 
+obj-$(CONFIG_SYSCTL) += sysctl_check.o
 obj-$(CONFIG_STACKTRACE) += stacktrace.o
 obj-y += time/
 obj-$(CONFIG_DEBUG_MUTEXES) += mutex-debug.o
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index de7bb284c611..b96ea8d6a5ed 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -56,6 +56,17 @@ endef
 # gcc support functions
 # See documentation in Documentation/kbuild/makefiles.txt
 
+# cc-cross-prefix
+# Usage: CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
+# Return first prefix where a prefix$(CC) is found in PATH.
+# If no $(CC) found in PATH with listed prefixes return nothing
+cc-cross-prefix =  \
+        $(word 1, $(foreach c,$(1),                                   \
+                $(shell set -e;                                       \
+                if (which $(strip $(c))$(CC)) > /dev/null 2>&1 ; then \
+                        echo $(c);                                    \
+                fi)))
+
 # output directory for tests below
 TMPOUT := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/)
 
diff --git a/scripts/basic/docproc.c b/scripts/basic/docproc.c
index e5c6ac7bde9b..0e4bd5459df4 100644
--- a/scripts/basic/docproc.c
+++ b/scripts/basic/docproc.c
@@ -66,12 +66,15 @@ FILELINE * entity_system;
 #define FUNCTION      "-function"
 #define NOFUNCTION    "-nofunction"
 
+char *srctree;
+
 void usage (void)
 {
         fprintf(stderr, "Usage: docproc {doc|depend} file\n");
         fprintf(stderr, "Input is read from file.tmpl. Output is sent to stdout\n");
         fprintf(stderr, "doc: frontend when generating kernel documentation\n");
         fprintf(stderr, "depend: generate list of files referenced within file\n");
+        fprintf(stderr, "Environment variable SRCTREE: absolute path to kernel source tree.\n");
 }
 
 /*
@@ -90,7 +93,7 @@ void exec_kernel_doc(char **svec)
                         exit(1);
                 case  0:
                         memset(real_filename, 0, sizeof(real_filename));
-                        strncat(real_filename, getenv("SRCTREE"), PATH_MAX);
+                        strncat(real_filename, srctree, PATH_MAX);
                         strncat(real_filename, KERNELDOCPATH KERNELDOC,
                                         PATH_MAX - strlen(real_filename));
                         execvp(real_filename, svec);
@@ -171,7 +174,7 @@ void find_export_symbols(char * filename)
         if (filename_exist(filename) == NULL) {
                 char real_filename[PATH_MAX + 1];
                 memset(real_filename, 0, sizeof(real_filename));
-                strncat(real_filename, getenv("SRCTREE"), PATH_MAX);
+                strncat(real_filename, srctree, PATH_MAX);
                 strncat(real_filename, filename,
                                 PATH_MAX - strlen(real_filename));
                 sym = add_new_file(filename);
@@ -338,6 +341,10 @@ void parse_file(FILE *infile)
 int main(int argc, char *argv[])
 {
         FILE * infile;
+
+        srctree = getenv("SRCTREE");
+        if (!srctree)
+                srctree = getcwd(NULL, 0);
         if (argc != 3) {
                 usage();
                 exit(1);
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index bb08069b04af..83c5e76414ce 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -84,7 +84,7 @@ help:
 # lxdialog stuff
 check-lxdialog  := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
 
-# Use reursively expanded variables so we do not call gcc unless
+# Use recursively expanded variables so we do not call gcc unless
 # we really need to do so. (Do not call gcc as part of make mrproper)
 HOST_EXTRACFLAGS = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags)
 HOST_LOADLIBES   = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 2ef9a193fcae..93ac52adb498 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -268,6 +268,9 @@ static struct symbol *sym_add_exported(const char *name, struct module *mod,
                              "was in %s%s\n", mod->name, name,
                              s->module->name,
                              is_vmlinux(s->module->name) ?"":".ko");
+                } else {
+                        /* In case Modules.symvers was out of date */
+                        s->module = mod;
                 }
         }
         s->preloaded = 0;
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index 6edb29f2b4a6..0f657b5f3bc8 100644
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -83,6 +83,7 @@ Maintainer: $name
 Standards-Version: 3.6.1
 
 Package: $packagename
+Provides: kernel-image-$version, linux-image-$version
 Architecture: any
 Description: User Mode Linux kernel, version $version
  User-mode Linux is a port of the Linux kernel to its own system call
@@ -104,6 +105,7 @@ Maintainer: $name
 Standards-Version: 3.6.1
 
 Package: $packagename
+Provides: kernel-image-$version, linux-image-$version
 Architecture: any
 Description: Linux kernel, version $version
  This package contains the Linux kernel, modules and corresponding other