126 files changed, 1079 insertions, 654 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 50b8148448fd..ceba39bc1b49 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1220,7 +1220,7 @@ F:	drivers/auxdisplay/
 F:      include/linux/cfag12864b.h
 
 AVR32 ARCHITECTURE
-M:      Haavard Skinnemoen <hskinnemoen@atmel.com>
+M:      Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
 W:      http://www.atmel.com/products/AVR32/
 W:      http://avr32linux.org/
 W:      http://avrfreaks.net/
@@ -1228,7 +1228,7 @@ S:	Supported
 F:      arch/avr32/
 
 AVR32/AT32AP MACHINE SUPPORT
-M:      Haavard Skinnemoen <hskinnemoen@atmel.com>
+M:      Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
 S:      Supported
 F:      arch/avr32/mach-at32ap/
 
@@ -2199,6 +2199,12 @@ W:	http://acpi4asus.sf.net
 S:      Maintained
 F:      drivers/platform/x86/eeepc-laptop.c
 
+EFIFB FRAMEBUFFER DRIVER
+L:      linux-fbdev@vger.kernel.org
+M:      Peter Jones <pjones@redhat.com>
+S:      Maintained
+F:      drivers/video/efifb.c
+
 EFS FILESYSTEM
 W:      http://aeschi.ch.eu.org/efs/
 S:      Orphan
@@ -2662,6 +2668,8 @@ M:	Guenter Roeck <guenter.roeck@ericsson.com>
 L:      lm-sensors@lm-sensors.org
 W:      http://www.lm-sensors.org/
 T:      quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-hwmon/
+T:      quilt kernel.org/pub/linux/kernel/people/groeck/linux-staging/
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git
 S:      Maintained
 F:      Documentation/hwmon/
 F:      drivers/hwmon/
@@ -3899,10 +3907,8 @@ F:	Documentation/serial/moxa-smartio
 F:      drivers/char/mxser.*
 
 MSI LAPTOP SUPPORT
-M:      Lennart Poettering <mzxreary@0pointer.de>
+M:      Lee, Chun-Yi <jlee@novell.com>
 L:      platform-driver-x86@vger.kernel.org
-W:      https://tango.0pointer.de/mailman/listinfo/s270-linux
-W:      http://0pointer.de/lennart/tchibo.html
 S:      Maintained
 F:      drivers/platform/x86/msi-laptop.c
 
diff --git a/arch/Kconfig b/arch/Kconfig
index 4877a8c8ee16..fe48fc7a3eba 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -32,8 +32,9 @@ config HAVE_OPROFILE
 
 config KPROBES
         bool "Kprobes"
-        depends on KALLSYMS && MODULES
+        depends on MODULES
         depends on HAVE_KPROBES
+        select KALLSYMS
         help
           Kprobes allows you to trap at almost any kernel address and
           execute a callback function.  register_kprobe() establishes
@@ -45,7 +46,6 @@ config OPTPROBES
         def_bool y
         depends on KPROBES && HAVE_OPTPROBES
         depends on !PREEMPT
-        select KALLSYMS_ALL
 
 config HAVE_EFFICIENT_UNALIGNED_ACCESS
         bool
diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c
index 7974baacafce..1bec96e85196 100644
--- a/arch/arm/common/it8152.c
+++ b/arch/arm/common/it8152.c
@@ -271,6 +271,14 @@ int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size)
                 ((dma_addr + size - PHYS_OFFSET) >= SZ_64M);
 }
 
+int dma_set_coherent_mask(struct device *dev, u64 mask)
+{
+        if (mask >= PHYS_OFFSET + SZ_64M - 1)
+                return 0;
+
+        return -EIO;
+}
+
 int __init it8152_pci_setup(int nr, struct pci_sys_data *sys)
 {
         it8152_io.start = IT8152_IO_BASE + 0x12000;
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index 61cd4d64b985..24498a932ba6 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -503,6 +503,14 @@ struct pci_bus * __devinit ixp4xx_scan_bus(int nr, struct pci_sys_data *sys)
         return pci_scan_bus(sys->busnr, &ixp4xx_ops, sys);
 }
 
+int dma_set_coherent_mask(struct device *dev, u64 mask)
+{
+        if (mask >= SZ_64M - 1)
+                return 0;
+
+        return -EIO;
+}
+
 EXPORT_SYMBOL(ixp4xx_pci_read);
 EXPORT_SYMBOL(ixp4xx_pci_write);
 
diff --git a/arch/arm/mach-ixp4xx/include/mach/hardware.h b/arch/arm/mach-ixp4xx/include/mach/hardware.h
index f91ca6d4fbe8..8138371c406e 100644
--- a/arch/arm/mach-ixp4xx/include/mach/hardware.h
+++ b/arch/arm/mach-ixp4xx/include/mach/hardware.h
@@ -26,6 +26,8 @@
 #define PCIBIOS_MAX_MEM         0x4BFFFFFF
 #endif
 
+#define ARCH_HAS_DMA_SET_COHERENT_MASK
+
 #define pcibios_assign_all_busses()     1
 
 /* Register locations and bits */
diff --git a/arch/arm/mach-pxa/include/mach/hardware.h b/arch/arm/mach-pxa/include/mach/hardware.h
index 7f64d24cd564..428cc7bda9a4 100644
--- a/arch/arm/mach-pxa/include/mach/hardware.h
+++ b/arch/arm/mach-pxa/include/mach/hardware.h
@@ -309,7 +309,7 @@ extern unsigned long get_clock_tick_rate(void);
 #define PCIBIOS_MIN_IO          0
 #define PCIBIOS_MIN_MEM         0
 #define pcibios_assign_all_busses()     1
+#define ARCH_HAS_DMA_SET_COHERENT_MASK
 #endif
 
-
 #endif  /* _ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-pxa/include/mach/io.h b/arch/arm/mach-pxa/include/mach/io.h
index 262691fb97d8..fdca3be47d9b 100644
--- a/arch/arm/mach-pxa/include/mach/io.h
+++ b/arch/arm/mach-pxa/include/mach/io.h
@@ -6,6 +6,8 @@
 #ifndef __ASM_ARM_ARCH_IO_H
 #define __ASM_ARM_ARCH_IO_H
 
+#include <mach/hardware.h>
+
 #define IO_SPACE_LIMIT 0xffffffff
 
 /*
diff --git a/arch/m32r/include/asm/signal.h b/arch/m32r/include/asm/signal.h
index 9c1acb2b1a92..b2eeb0de1c8d 100644
--- a/arch/m32r/include/asm/signal.h
+++ b/arch/m32r/include/asm/signal.h
@@ -157,7 +157,6 @@ typedef struct sigaltstack {
 #undef __HAVE_ARCH_SIG_BITOPS
 
 struct pt_regs;
-extern int do_signal(struct pt_regs *regs, sigset_t *oldset);
 
 #define ptrace_signal_deliver(regs, cookie)     do { } while (0)
 
diff --git a/arch/m32r/include/asm/unistd.h b/arch/m32r/include/asm/unistd.h
index 76125777483c..c70545689da8 100644
--- a/arch/m32r/include/asm/unistd.h
+++ b/arch/m32r/include/asm/unistd.h
@@ -351,6 +351,7 @@
 #define __ARCH_WANT_SYS_OLD_GETRLIMIT /*will be unused*/
 #define __ARCH_WANT_SYS_OLDUMOUNT
 #define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
 
 #define __IGNORE_lchown
 #define __IGNORE_setuid
diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S
index 403869833b98..225412bc227e 100644
--- a/arch/m32r/kernel/entry.S
+++ b/arch/m32r/kernel/entry.S
@@ -235,10 +235,9 @@ work_resched:
 work_notifysig:                         ; deal with pending signals and
                                         ; notify-resume requests
         mv      r0, sp                  ; arg1 : struct pt_regs *regs
-        ldi     r1, #0                  ; arg2 : sigset_t *oldset
-        mv      r2, r9                  ; arg3 : __u32 thread_info_flags
+        mv      r1, r9                  ; arg2 : __u32 thread_info_flags
         bl      do_notify_resume
-        bra     restore_all
+        bra     resume_userspace
 
         ; perform syscall exit tracing
         ALIGN
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index e555091eb97c..0021ade4cba8 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -592,16 +592,17 @@ void user_enable_single_step(struct task_struct *child)
 
         if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0)
             != sizeof(insn))
-                break;
+                return -EIO;
 
         compute_next_pc(insn, pc, &next_pc, child);
         if (next_pc & 0x80000000)
-                break;
+                return -EIO;
 
         if (embed_debug_trap(child, next_pc))
-                break;
+                return -EIO;
 
         invalidate_cache();
+        return 0;
 }
 
 void user_disable_single_step(struct task_struct *child)
diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c
index 144b0f124fc7..7bbe38645ed5 100644
--- a/arch/m32r/kernel/signal.c
+++ b/arch/m32r/kernel/signal.c
@@ -28,37 +28,6 @@
 
 #define DEBUG_SIG 0
 
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-int do_signal(struct pt_regs *, sigset_t *);
-
-asmlinkage int
-sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
-                  unsigned long r2, unsigned long r3, unsigned long r4,
-                  unsigned long r5, unsigned long r6, struct pt_regs *regs)
-{
-        sigset_t newset;
-
-        /* XXX: Don't preclude handling different sized sigset_t's.  */
-        if (sigsetsize != sizeof(sigset_t))
-                return -EINVAL;
-
-        if (copy_from_user(&newset, unewset, sizeof(newset)))
-                return -EFAULT;
-        sigdelsetmask(&newset, sigmask(SIGKILL)|sigmask(SIGSTOP));
-
-        spin_lock_irq(&current->sighand->siglock);
-        current->saved_sigmask = current->blocked;
-        current->blocked = newset;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
-
-        current->state = TASK_INTERRUPTIBLE;
-        schedule();
-        set_thread_flag(TIF_RESTORE_SIGMASK);
-        return -ERESTARTNOHAND;
-}
-
 asmlinkage int
 sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
                 unsigned long r2, unsigned long r3, unsigned long r4,
@@ -218,7 +187,7 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
         return (void __user *)((sp - frame_size) & -8ul);
 }
 
-static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                            sigset_t *set, struct pt_regs *regs)
 {
         struct rt_sigframe __user *frame;
@@ -275,22 +244,34 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
                 current->comm, current->pid, frame, regs->pc);
 #endif
 
-        return;
+        return 0;
 
 give_sigsegv:
         force_sigsegv(sig, current);
+        return -EFAULT;
+}
+
+static int prev_insn(struct pt_regs *regs)
+{
+        u16 inst;
+        if (get_user(&inst, (u16 __user *)(regs->bpc - 2)))
+                return -EFAULT;
+        if ((inst & 0xfff0) == 0x10f0)  /* trap ? */
+                regs->bpc -= 2;
+        else
+                regs->bpc -= 4;
+        regs->syscall_nr = -1;
+        return 0;
 }
 
 /*
  * OK, we're invoking a handler
  */
 
-static void
+static int
 handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
               sigset_t *oldset, struct pt_regs *regs)
 {
-        unsigned short inst;
-
         /* Are we from a system call? */
         if (regs->syscall_nr >= 0) {
                 /* If so, check system call restarting.. */
@@ -308,16 +289,14 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
                         /* fallthrough */
                         case -ERESTARTNOINTR:
                                 regs->r0 = regs->orig_r0;
-                                inst = *(unsigned short *)(regs->bpc - 2);
-                                if ((inst & 0xfff0) == 0x10f0)  /* trap ? */
-                                        regs->bpc -= 2;
-                                else
-                                        regs->bpc -= 4;
+                                if (prev_insn(regs) < 0)
+                                        return -EFAULT;
                 }
         }
 
         /* Set up the stack frame */
-        setup_rt_frame(sig, ka, info, oldset, regs);
+        if (setup_rt_frame(sig, ka, info, oldset, regs))
+                return -EFAULT;
 
         spin_lock_irq(&current->sighand->siglock);
         sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -325,6 +304,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
                 sigaddset(&current->blocked,sig);
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
+        return 0;
 }
 
 /*
@@ -332,12 +312,12 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
  * mistake.
  */
-int do_signal(struct pt_regs *regs, sigset_t *oldset)
+static void do_signal(struct pt_regs *regs)
 {
         siginfo_t info;
         int signr;
         struct k_sigaction ka;
-        unsigned short inst;
+        sigset_t *oldset;
 
         /*
          * We want the common case to go fast, which
@@ -346,12 +326,14 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
          * if so.
          */
         if (!user_mode(regs))
-                return 1;
+                return;
 
         if (try_to_freeze()) 
                 goto no_signal;
 
-        if (!oldset)
+        if (test_thread_flag(TIF_RESTORE_SIGMASK))
+                oldset = &current->saved_sigmask;
+        else
                 oldset = &current->blocked;
 
         signr = get_signal_to_deliver(&info, &ka, regs, NULL);
@@ -363,8 +345,10 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
                  */
 
                 /* Whee!  Actually deliver the signal.  */
-                handle_signal(signr, &ka, &info, oldset, regs);
-                return 1;
+                if (handle_signal(signr, &ka, &info, oldset, regs) == 0)
+                        clear_thread_flag(TIF_RESTORE_SIGMASK);
+
+                return;
         }
 
  no_signal:
@@ -375,31 +359,24 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
                     regs->r0 == -ERESTARTSYS ||
                     regs->r0 == -ERESTARTNOINTR) {
                         regs->r0 = regs->orig_r0;
-                        inst = *(unsigned short *)(regs->bpc - 2);
-                        if ((inst & 0xfff0) == 0x10f0)  /* trap ? */
-                                regs->bpc -= 2;
-                        else
-                                regs->bpc -= 4;
-                }
-                if (regs->r0 == -ERESTART_RESTARTBLOCK){
+                        prev_insn(regs);
+                } else if (regs->r0 == -ERESTART_RESTARTBLOCK){
                         regs->r0 = regs->orig_r0;
                         regs->r7 = __NR_restart_syscall;
-                        inst = *(unsigned short *)(regs->bpc - 2);
-                        if ((inst & 0xfff0) == 0x10f0)  /* trap ? */
-                                regs->bpc -= 2;
-                        else
-                                regs->bpc -= 4;
+                        prev_insn(regs);
                 }
         }
-        return 0;
+        if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+                clear_thread_flag(TIF_RESTORE_SIGMASK);
+                sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+        }
 }
 
 /*
  * notification of userspace execution resumption
  * - triggered by current->work.notify_resume
  */
-void do_notify_resume(struct pt_regs *regs, sigset_t *oldset,
-                      __u32 thread_info_flags)
+void do_notify_resume(struct pt_regs *regs, __u32 thread_info_flags)
 {
         /* Pending single-step? */
         if (thread_info_flags & _TIF_SINGLESTEP)
@@ -407,7 +384,7 @@ void do_notify_resume(struct pt_regs *regs, sigset_t *oldset,
 
         /* deal with pending signal delivery */
         if (thread_info_flags & _TIF_SIGPENDING)
-                do_signal(regs,oldset);
+                do_signal(regs);
 
         if (thread_info_flags & _TIF_NOTIFY_RESUME) {
                 clear_thread_flag(TIF_NOTIFY_RESUME);
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 444b9f918fdf..7c2a2f7f8dc1 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -8,7 +8,6 @@ mainmenu "Linux Kernel Configuration"
 config MN10300
         def_bool y
         select HAVE_OPROFILE
-        select HAVE_ARCH_TRACEHOOK
 
 config AM33
         def_bool y
diff --git a/arch/mn10300/include/asm/bitops.h b/arch/mn10300/include/asm/bitops.h
index f49ac49e09ad..3f50e9661076 100644
--- a/arch/mn10300/include/asm/bitops.h
+++ b/arch/mn10300/include/asm/bitops.h
@@ -229,9 +229,9 @@ int ffs(int x)
 #include <asm-generic/bitops/hweight.h>
 
 #define ext2_set_bit_atomic(lock, nr, addr) \
-        test_and_set_bit((nr) ^ 0x18, (addr))
+        test_and_set_bit((nr), (addr))
 #define ext2_clear_bit_atomic(lock, nr, addr) \
-        test_and_clear_bit((nr) ^ 0x18, (addr))
+        test_and_clear_bit((nr), (addr))
 
 #include <asm-generic/bitops/ext2-non-atomic.h>
 #include <asm-generic/bitops/minix-le.h>
diff --git a/arch/mn10300/include/asm/signal.h b/arch/mn10300/include/asm/signal.h
index 7e891fce2370..1865d72a86ff 100644
--- a/arch/mn10300/include/asm/signal.h
+++ b/arch/mn10300/include/asm/signal.h
@@ -78,7 +78,7 @@ typedef unsigned long sigset_t;
 
 /* These should not be considered constants from userland.  */
 #define SIGRTMIN        32
-#define SIGRTMAX        (_NSIG-1)
+#define SIGRTMAX        _NSIG
 
 /*
  * SA_FLAGS values:
diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c
index 7109f5b1baa8..2300426e531a 100644
--- a/arch/powerpc/kernel/signal.c
+++ b/arch/powerpc/kernel/signal.c
@@ -138,6 +138,7 @@ static int do_signal_pending(sigset_t *oldset, struct pt_regs *regs)
                         ti->local_flags &= ~_TLF_RESTORE_SIGMASK;
                         sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
                 }
+                regs->trap = 0;
                 return 0;               /* no signals delivered */
         }
 
@@ -164,6 +165,7 @@ static int do_signal_pending(sigset_t *oldset, struct pt_regs *regs)
                 ret = handle_rt_signal64(signr, &ka, &info, oldset, regs);
         }
 
+        regs->trap = 0;
         if (ret) {
                 spin_lock_irq(&current->sighand->siglock);
                 sigorsets(&current->blocked, &current->blocked,
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 266610119f66..b96a3a010c26 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -511,6 +511,7 @@ static long restore_user_regs(struct pt_regs *regs,
         if (!sig)
                 save_r2 = (unsigned int)regs->gpr[2];
         err = restore_general_regs(regs, sr);
+        regs->trap = 0;
         err |= __get_user(msr, &sr->mc_gregs[PT_MSR]);
         if (!sig)
                 regs->gpr[2] = (unsigned long) save_r2;
@@ -884,7 +885,6 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
         regs->nip = (unsigned long) ka->sa.sa_handler;
         /* enter the signal handler in big-endian mode */
         regs->msr &= ~MSR_LE;
-        regs->trap = 0;
         return 1;
 
 badframe:
@@ -1228,7 +1228,6 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka,
         regs->nip = (unsigned long) ka->sa.sa_handler;
         /* enter the signal handler in big-endian mode */
         regs->msr &= ~MSR_LE;
-        regs->trap = 0;
 
         return 1;
 
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 2fe6fc64b614..27c4a4584f80 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -178,7 +178,7 @@ static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig,
         err |= __get_user(regs->xer, &sc->gp_regs[PT_XER]);
         err |= __get_user(regs->ccr, &sc->gp_regs[PT_CCR]);
         /* skip SOFTE */
-        err |= __get_user(regs->trap, &sc->gp_regs[PT_TRAP]);
+        regs->trap = 0;
         err |= __get_user(regs->dar, &sc->gp_regs[PT_DAR]);
         err |= __get_user(regs->dsisr, &sc->gp_regs[PT_DSISR]);
         err |= __get_user(regs->result, &sc->gp_regs[PT_RESULT]);
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 357ced3c33ff..6318e622cfb0 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -1038,6 +1038,7 @@ static int __hw_perf_event_init(struct perf_event *event)
         if (atomic_read(&nmi_active) < 0)
                 return -ENODEV;
 
+        pmap = NULL;
         if (attr->type == PERF_TYPE_HARDWARE) {
                 if (attr->config >= sparc_pmu->max_events)
                         return -EINVAL;
@@ -1046,9 +1047,18 @@ static int __hw_perf_event_init(struct perf_event *event)
                 pmap = sparc_map_cache_event(attr->config);
                 if (IS_ERR(pmap))
                         return PTR_ERR(pmap);
-        } else
+        } else if (attr->type != PERF_TYPE_RAW)
                 return -EOPNOTSUPP;
 
+        if (pmap) {
+                hwc->event_base = perf_event_encode(pmap);
+        } else {
+                /* User gives us "(encoding << 16) | pic_mask" for
+                 * PERF_TYPE_RAW events.
+                 */
+                hwc->event_base = attr->config;
+        }
+
         /* We save the enable bits in the config_base.  */
         hwc->config_base = sparc_pmu->irq_bit;
         if (!attr->exclude_user)
@@ -1058,8 +1068,6 @@ static int __hw_perf_event_init(struct perf_event *event)
         if (!attr->exclude_hv)
                 hwc->config_base |= sparc_pmu->hv_bit;
 
-        hwc->event_base = perf_event_encode(pmap);
-
         n = 0;
         if (event->group_leader != event) {
                 n = collect_events(event->group_leader,
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index ea22cd373c64..75fad425e249 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -453,8 +453,66 @@ static int save_fpu_state32(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
         return err;
 }
 
-static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
-                          int signo, sigset_t *oldset)
+/* The I-cache flush instruction only works in the primary ASI, which
+ * right now is the nucleus, aka. kernel space.
+ *
+ * Therefore we have to kick the instructions out using the kernel
+ * side linear mapping of the physical address backing the user
+ * instructions.
+ */
+static void flush_signal_insns(unsigned long address)
+{
+        unsigned long pstate, paddr;
+        pte_t *ptep, pte;
+        pgd_t *pgdp;
+        pud_t *pudp;
+        pmd_t *pmdp;
+
+        /* Commit all stores of the instructions we are about to flush.  */
+        wmb();
+
+        /* Disable cross-call reception.  In this way even a very wide
+         * munmap() on another cpu can't tear down the page table
+         * hierarchy from underneath us, since that can't complete
+         * until the IPI tlb flush returns.
+         */
+
+        __asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate));
+        __asm__ __volatile__("wrpr %0, %1, %%pstate"
+                                : : "r" (pstate), "i" (PSTATE_IE));
+
+        pgdp = pgd_offset(current->mm, address);
+        if (pgd_none(*pgdp))
+                goto out_irqs_on;
+        pudp = pud_offset(pgdp, address);
+        if (pud_none(*pudp))
+                goto out_irqs_on;
+        pmdp = pmd_offset(pudp, address);
+        if (pmd_none(*pmdp))
+                goto out_irqs_on;
+
+        ptep = pte_offset_map(pmdp, address);
+        pte = *ptep;
+        if (!pte_present(pte))
+                goto out_unmap;
+
+        paddr = (unsigned long) page_address(pte_page(pte));
+
+        __asm__ __volatile__("flush     %0 + %1"
+                             : /* no outputs */
+                             : "r" (paddr),
+                               "r" (address & (PAGE_SIZE - 1))
+                             : "memory");
+
+out_unmap:
+        pte_unmap(ptep);
+out_irqs_on:
+        __asm__ __volatile__("wrpr %0, 0x0, %%pstate" : : "r" (pstate));
+
+}
+
+static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
+                         int signo, sigset_t *oldset)
 {
         struct signal_frame32 __user *sf;
         int sigframe_size;
@@ -547,13 +605,7 @@ static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
         if (ka->ka_restorer) {
                 regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
         } else {
-                /* Flush instruction space. */
                 unsigned long address = ((unsigned long)&(sf->insns[0]));
-                pgd_t *pgdp = pgd_offset(current->mm, address);
-                pud_t *pudp = pud_offset(pgdp, address);
-                pmd_t *pmdp = pmd_offset(pudp, address);
-                pte_t *ptep;
-                pte_t pte;
 
                 regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2);
         
@@ -562,34 +614,22 @@ static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
                 if (err)
                         goto sigsegv;
 
-                preempt_disable();
-                ptep = pte_offset_map(pmdp, address);
-                pte = *ptep;
-                if (pte_present(pte)) {
-                        unsigned long page = (unsigned long)
-                                page_address(pte_page(pte));
-
-                        wmb();
-                        __asm__ __volatile__("flush     %0 + %1"
-                                             : /* no outputs */
-                                             : "r" (page),
-                                               "r" (address & (PAGE_SIZE - 1))
-                                             : "memory");
-                }
-                pte_unmap(ptep);
-                preempt_enable();
+                flush_signal_insns(address);
         }
-        return;
+        return 0;
 
 sigill:
         do_exit(SIGILL);
+        return -EINVAL;
+
 sigsegv:
         force_sigsegv(signo, current);
+        return -EFAULT;
 }
 
-static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
-                             unsigned long signr, sigset_t *oldset,
-                             siginfo_t *info)
+static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
+                            unsigned long signr, sigset_t *oldset,
+                            siginfo_t *info)
 {
         struct rt_signal_frame32 __user *sf;
         int sigframe_size;
@@ -687,12 +727,7 @@ static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
         if (ka->ka_restorer)
                 regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
         else {
-                /* Flush instruction space. */
                 unsigned long address = ((unsigned long)&(sf->insns[0]));
-                pgd_t *pgdp = pgd_offset(current->mm, address);
-                pud_t *pudp = pud_offset(pgdp, address);
-                pmd_t *pmdp = pmd_offset(pudp, address);
-                pte_t *ptep;
 
                 regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2);
         
@@ -704,38 +739,32 @@ static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
                 if (err)
                         goto sigsegv;
 
-                preempt_disable();
-                ptep = pte_offset_map(pmdp, address);
-                if (pte_present(*ptep)) {
-                        unsigned long page = (unsigned long)
-                                page_address(pte_page(*ptep));
-
-                        wmb();
-                        __asm__ __volatile__("flush     %0 + %1"
-                                             : /* no outputs */
-                                             : "r" (page),
-                                               "r" (address & (PAGE_SIZE - 1))
-                                             : "memory");
-                }
-                pte_unmap(ptep);
-                preempt_enable();
+                flush_signal_insns(address);
         }
-        return;
+        return 0;
 
 sigill:
         do_exit(SIGILL);
+        return -EINVAL;
+
 sigsegv:
         force_sigsegv(signr, current);
+        return -EFAULT;
 }
 
-static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka,
-                                   siginfo_t *info,
-                                   sigset_t *oldset, struct pt_regs *regs)
+static inline int handle_signal32(unsigned long signr, struct k_sigaction *ka,
+                                  siginfo_t *info,
+                                  sigset_t *oldset, struct pt_regs *regs)
 {
+        int err;
+
         if (ka->sa.sa_flags & SA_SIGINFO)
-                setup_rt_frame32(ka, regs, signr, oldset, info);
+                err = setup_rt_frame32(ka, regs, signr, oldset, info);
         else
-                setup_frame32(ka, regs, signr, oldset);
+                err = setup_frame32(ka, regs, signr, oldset);
+
+        if (err)
+                return err;
 
         spin_lock_irq(&current->sighand->siglock);
         sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -743,6 +772,10 @@ static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka,
                 sigaddset(&current->blocked,signr);
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
+
+        tracehook_signal_handler(signr, info, ka, regs, 0);
+
+        return 0;
 }
 
 static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs,
@@ -789,16 +822,14 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs,
         if (signr > 0) {
                 if (restart_syscall)
                         syscall_restart32(orig_i0, regs, &ka.sa);
-                handle_signal32(signr, &ka, &info, oldset, regs);
-
-                /* A signal was successfully delivered; the saved
-                 * sigmask will have been stored in the signal frame,
-                 * and will be restored by sigreturn, so we can simply
-                 * clear the TS_RESTORE_SIGMASK flag.
-                 */
-                current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-
-                tracehook_signal_handler(signr, &info, &ka, regs, 0);
+                if (handle_signal32(signr, &ka, &info, oldset, regs) == 0) {
+                        /* A signal was successfully delivered; the saved
+                         * sigmask will have been stored in the signal frame,
+                         * and will be restored by sigreturn, so we can simply
+                         * clear the TS_RESTORE_SIGMASK flag.
+                         */
+                        current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+                }
                 return;
         }
         if (restart_syscall &&
@@ -809,12 +840,14 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs,
                 regs->u_regs[UREG_I0] = orig_i0;
                 regs->tpc -= 4;
                 regs->tnpc -= 4;
+                pt_regs_clear_syscall(regs);
         }
         if (restart_syscall &&
             regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
                 regs->u_regs[UREG_G1] = __NR_restart_syscall;
                 regs->tpc -= 4;
                 regs->tnpc -= 4;
+                pt_regs_clear_syscall(regs);
         }
 
         /* If there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index 9882df92ba0a..5e5c5fd03783 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -315,8 +315,8 @@ save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
         return err;
 }
 
-static void setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
-                        int signo, sigset_t *oldset)
+static int setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
+                       int signo, sigset_t *oldset)
 {
         struct signal_frame __user *sf;
         int sigframe_size, err;
@@ -384,16 +384,19 @@ static void setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
                 /* Flush instruction space. */
                 flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));
         }
-        return;
+        return 0;
 
 sigill_and_return:
         do_exit(SIGILL);
+        return -EINVAL;
+
 sigsegv:
         force_sigsegv(signo, current);
+        return -EFAULT;
 }
 
-static void setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
-                           int signo, sigset_t *oldset, siginfo_t *info)
+static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
+                          int signo, sigset_t *oldset, siginfo_t *info)
 {
         struct rt_signal_frame __user *sf;
         int sigframe_size;
@@ -466,22 +469,30 @@ static void setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
                 /* Flush instruction space. */
                 flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));
         }
-        return;
+        return 0;
 
 sigill:
         do_exit(SIGILL);
+        return -EINVAL;
+
 sigsegv:
         force_sigsegv(signo, current);
+        return -EFAULT;
 }
 
-static inline void
+static inline int
 handle_signal(unsigned long signr, struct k_sigaction *ka,
               siginfo_t *info, sigset_t *oldset, struct pt_regs *regs)
 {
+        int err;
+
         if (ka->sa.sa_flags & SA_SIGINFO)
-                setup_rt_frame(ka, regs, signr, oldset, info);
+                err = setup_rt_frame(ka, regs, signr, oldset, info);
         else
-                setup_frame(ka, regs, signr, oldset);
+                err = setup_frame(ka, regs, signr, oldset);
+
+        if (err)
+                return err;
 
         spin_lock_irq(&current->sighand->siglock);
         sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -489,6 +500,10 @@ handle_signal(unsigned long signr, struct k_sigaction *ka,
                 sigaddset(&current->blocked, signr);
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
+
+        tracehook_signal_handler(signr, info, ka, regs, 0);
+
+        return 0;
 }
 
 static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
@@ -546,17 +561,15 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
         if (signr > 0) {
                 if (restart_syscall)
                         syscall_restart(orig_i0, regs, &ka.sa);
-                handle_signal(signr, &ka, &info, oldset, regs);
-
-                /* a signal was successfully delivered; the saved
-                 * sigmask will have been stored in the signal frame,
-                 * and will be restored by sigreturn, so we can simply
-                 * clear the TIF_RESTORE_SIGMASK flag.
-                 */
-                if (test_thread_flag(TIF_RESTORE_SIGMASK))
-                        clear_thread_flag(TIF_RESTORE_SIGMASK);
-
-                tracehook_signal_handler(signr, &info, &ka, regs, 0);
+                if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+                        /* a signal was successfully delivered; the saved
+                         * sigmask will have been stored in the signal frame,
+                         * and will be restored by sigreturn, so we can simply
+                         * clear the TIF_RESTORE_SIGMASK flag.
+                         */
+                        if (test_thread_flag(TIF_RESTORE_SIGMASK))
+                                clear_thread_flag(TIF_RESTORE_SIGMASK);
+                }
                 return;
         }
         if (restart_syscall &&
@@ -567,12 +580,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
                 regs->u_regs[UREG_I0] = orig_i0;
                 regs->pc -= 4;
                 regs->npc -= 4;
+                pt_regs_clear_syscall(regs);
         }
         if (restart_syscall &&
             regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
                 regs->u_regs[UREG_G1] = __NR_restart_syscall;
                 regs->pc -= 4;
                 regs->npc -= 4;
+                pt_regs_clear_syscall(regs);
         }
 
         /* if there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index 9fa48c30037e..006fe4515886 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -409,7 +409,7 @@ static inline void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *
         return (void __user *) sp;
 }
 
-static inline void
+static inline int
 setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
                int signo, sigset_t *oldset, siginfo_t *info)
 {
@@ -483,26 +483,37 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
         }
         /* 4. return to kernel instructions */
         regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
-        return;
+        return 0;
 
 sigill:
         do_exit(SIGILL);
+        return -EINVAL;
+
 sigsegv:
         force_sigsegv(signo, current);
+        return -EFAULT;
 }
 
-static inline void handle_signal(unsigned long signr, struct k_sigaction *ka,
-                                 siginfo_t *info,
-                                 sigset_t *oldset, struct pt_regs *regs)
+static inline int handle_signal(unsigned long signr, struct k_sigaction *ka,
+                                siginfo_t *info,
+                                sigset_t *oldset, struct pt_regs *regs)
 {
-        setup_rt_frame(ka, regs, signr, oldset,
-                       (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL);
+        int err;
+
+        err = setup_rt_frame(ka, regs, signr, oldset,
+                             (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL);
+        if (err)
+                return err;
         spin_lock_irq(&current->sighand->siglock);
         sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
         if (!(ka->sa.sa_flags & SA_NOMASK))
                 sigaddset(&current->blocked,signr);
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
+
+        tracehook_signal_handler(signr, info, ka, regs, 0);
+
+        return 0;
 }
 
 static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
@@ -571,16 +582,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
         if (signr > 0) {
                 if (restart_syscall)
                         syscall_restart(orig_i0, regs, &ka.sa);
-                handle_signal(signr, &ka, &info, oldset, regs);
-
-                /* A signal was successfully delivered; the saved
-                 * sigmask will have been stored in the signal frame,
-                 * and will be restored by sigreturn, so we can simply
-                 * clear the TS_RESTORE_SIGMASK flag.
-                 */
-                current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-
-                tracehook_signal_handler(signr, &info, &ka, regs, 0);
+                if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+                        /* A signal was successfully delivered; the saved
+                         * sigmask will have been stored in the signal frame,
+                         * and will be restored by sigreturn, so we can simply
+                         * clear the TS_RESTORE_SIGMASK flag.
+                         */
+                        current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+                }
                 return;
         }
         if (restart_syscall &&
@@ -591,12 +600,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
                 regs->u_regs[UREG_I0] = orig_i0;
                 regs->tpc -= 4;
                 regs->tnpc -= 4;
+                pt_regs_clear_syscall(regs);
         }
         if (restart_syscall &&
             regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
                 regs->u_regs[UREG_G1] = __NR_restart_syscall;
                 regs->tpc -= 4;
                 regs->tnpc -= 4;
+                pt_regs_clear_syscall(regs);
         }
 
         /* If there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/tile/kernel/intvec_32.S b/arch/tile/kernel/intvec_32.S
index 84f296ca9e63..8f58bdff20d7 100644
--- a/arch/tile/kernel/intvec_32.S
+++ b/arch/tile/kernel/intvec_32.S
@@ -1506,13 +1506,6 @@ handle_ill:
         }
         STD_ENDPROC(handle_ill)
 
-        .pushsection .rodata, "a"
-        .align  8
-bpt_code:
-        bpt
-        ENDPROC(bpt_code)
-        .popsection
-
 /* Various stub interrupt handlers and syscall handlers */
 
 STD_ENTRY_LOCAL(_kernel_double_fault)
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index cd145eda3579..49b5e1eb3262 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -62,7 +62,7 @@ static long execve1(const char *file,
         return error;
 }
 
-long um_execve(const char *file, char __user *__user *argv, char __user *__user *env)
+long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env)
 {
         long err;
 
@@ -72,8 +72,8 @@ long um_execve(const char *file, char __user *__user *argv, char __user *__user
         return err;
 }
 
-long sys_execve(const char __user *file, char __user *__user *argv,
-                char __user *__user *env)
+long sys_execve(const char __user *file, const char __user *const __user *argv,
+                const char __user *const __user *env)
 {
         long error;
         char *filename;
diff --git a/arch/um/kernel/internal.h b/arch/um/kernel/internal.h
index 1303a105fe91..5bf97db24a04 100644
--- a/arch/um/kernel/internal.h
+++ b/arch/um/kernel/internal.h
@@ -1 +1 @@
-extern long um_execve(const char *file, char __user *__user *argv, char __user *__user *env);
+extern long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env);
diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c
index 5ddb246626db..f958cb876ee3 100644
--- a/arch/um/kernel/syscall.c
+++ b/arch/um/kernel/syscall.c
@@ -60,8 +60,8 @@ int kernel_execve(const char *filename,
 
         fs = get_fs();
         set_fs(KERNEL_DS);
-        ret = um_execve(filename, (char __user *__user *)argv,
-                        (char __user *__user *) envp);
+        ret = um_execve(filename, (const char __user *const __user *)argv,
+                        (const char __user *const __user *) envp);
         set_fs(fs);
 
         return ret;
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index c6fbb7b430d1..3f76523589af 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -168,6 +168,7 @@
 #define X86_FEATURE_XSAVEOPT    (7*32+ 4) /* Optimized Xsave */
 #define X86_FEATURE_PLN         (7*32+ 5) /* Intel Power Limit Notification */
 #define X86_FEATURE_PTS         (7*32+ 6) /* Intel Package Thermal Status */
+#define X86_FEATURE_DTS         (7*32+ 7) /* Digital Thermal Sensor */
 
 /* Virtualization flags: Linux defined, word 8 */
 #define X86_FEATURE_TPR_SHADOW  (8*32+ 0) /* Intel TPR Shadow */
diff --git a/arch/x86/include/asm/hw_breakpoint.h b/arch/x86/include/asm/hw_breakpoint.h
index 528a11e8d3e3..824ca07860d0 100644
--- a/arch/x86/include/asm/hw_breakpoint.h
+++ b/arch/x86/include/asm/hw_breakpoint.h
@@ -20,7 +20,7 @@ struct arch_hw_breakpoint {
 #include <linux/list.h>
 
 /* Available HW breakpoint length encodings */
-#define X86_BREAKPOINT_LEN_X            0x00
+#define X86_BREAKPOINT_LEN_X            0x40
 #define X86_BREAKPOINT_LEN_1            0x40
 #define X86_BREAKPOINT_LEN_2            0x44
 #define X86_BREAKPOINT_LEN_4            0x4c
diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c
index 34b4dad6f0b8..d49079515122 100644
--- a/arch/x86/kernel/cpu/scattered.c
+++ b/arch/x86/kernel/cpu/scattered.c
@@ -31,6 +31,7 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c)
         const struct cpuid_bit *cb;
 
         static const struct cpuid_bit __cpuinitconst cpuid_bits[] = {
+                { X86_FEATURE_DTS,              CR_EAX, 0, 0x00000006, 0 },
                 { X86_FEATURE_IDA,              CR_EAX, 1, 0x00000006, 0 },
                 { X86_FEATURE_ARAT,             CR_EAX, 2, 0x00000006, 0 },
                 { X86_FEATURE_PLN,              CR_EAX, 4, 0x00000006, 0 },
diff --git a/arch/x86/kernel/hw_breakpoint.c b/arch/x86/kernel/hw_breakpoint.c
index a474ec37c32f..ff15c9dcc25d 100644
--- a/arch/x86/kernel/hw_breakpoint.c
+++ b/arch/x86/kernel/hw_breakpoint.c
@@ -206,11 +206,27 @@ int arch_check_bp_in_kernelspace(struct perf_event *bp)
 int arch_bp_generic_fields(int x86_len, int x86_type,
                            int *gen_len, int *gen_type)
 {
-        /* Len */
-        switch (x86_len) {
-        case X86_BREAKPOINT_LEN_X:
+        /* Type */
+        switch (x86_type) {
+        case X86_BREAKPOINT_EXECUTE:
+                if (x86_len != X86_BREAKPOINT_LEN_X)
+                        return -EINVAL;
+
+                *gen_type = HW_BREAKPOINT_X;
                 *gen_len = sizeof(long);
+                return 0;
+        case X86_BREAKPOINT_WRITE:
+                *gen_type = HW_BREAKPOINT_W;
                 break;
+        case X86_BREAKPOINT_RW:
+                *gen_type = HW_BREAKPOINT_W | HW_BREAKPOINT_R;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        /* Len */
+        switch (x86_len) {
         case X86_BREAKPOINT_LEN_1:
                 *gen_len = HW_BREAKPOINT_LEN_1;
                 break;
@@ -229,21 +245,6 @@ int arch_bp_generic_fields(int x86_len, int x86_type,
                 return -EINVAL;
         }
 
-        /* Type */
-        switch (x86_type) {
-        case X86_BREAKPOINT_EXECUTE:
-                *gen_type = HW_BREAKPOINT_X;
-                break;
-        case X86_BREAKPOINT_WRITE:
-                *gen_type = HW_BREAKPOINT_W;
-                break;
-        case X86_BREAKPOINT_RW:
-                *gen_type = HW_BREAKPOINT_W | HW_BREAKPOINT_R;
-                break;
-        default:
-                return -EINVAL;
-        }
-
         return 0;
 }
 
@@ -316,9 +317,6 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
         ret = -EINVAL;
 
         switch (info->len) {
-        case X86_BREAKPOINT_LEN_X:
-                align = sizeof(long) -1;
-                break;
         case X86_BREAKPOINT_LEN_1:
                 align = 0;
                 break;
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 9257510b4836..9d5f55848455 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -324,9 +324,8 @@ static void lguest_load_gdt(const struct desc_ptr *desc)
 }
 
 /*
- * For a single GDT entry which changes, we do the lazy thing: alter our GDT,
- * then tell the Host to reload the entire thing.  This operation is so rare
- * that this naive implementation is reasonable.
+ * For a single GDT entry which changes, we simply change our copy and
+ * then tell the host about it.
  */
 static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
                                    const void *desc, int type)
@@ -338,9 +337,13 @@ static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
 }
 
 /*
- * OK, I lied.  There are three "thread local storage" GDT entries which change
+ * There are three "thread local storage" GDT entries which change
  * on every context switch (these three entries are how glibc implements
- * __thread variables).  So we have a hypercall specifically for this case.
+ * __thread variables).  As an optimization, we have a hypercall
+ * specifically for this case.
+ *
+ * Wouldn't it be nicer to have a general LOAD_GDT_ENTRIES hypercall
+ * which took a range of entries?
  */
 static void lguest_load_tls(struct thread_struct *t, unsigned int cpu)
 {
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index cfe4faabb0f6..009b819f48d0 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -671,7 +671,9 @@ static int __init ppro_init(char **cpu_type)
         case 14:
                 *cpu_type = "i386/core";
                 break;
-        case 15: case 23:
+        case 0x0f:
+        case 0x16:
+        case 0x17:
                 *cpu_type = "i386/core_2";
                 break;
         case 0x1a:
diff --git a/block/blk-map.c b/block/blk-map.c
index c65d7593f7f1..ade0a08c9099 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -307,7 +307,7 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
                 return PTR_ERR(bio);
 
         if (rq_data_dir(rq) == WRITE)
-                bio->bi_rw |= (1 << REQ_WRITE);
+                bio->bi_rw |= REQ_WRITE;
 
         if (do_copy)
                 rq->cmd_flags |= REQ_COPY_USER;
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index f65c6f01c475..9eba291eb6fd 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1019,10 +1019,20 @@ cfq_find_alloc_cfqg(struct cfq_data *cfqd, struct cgroup *cgroup, int create)
          */
         atomic_set(&cfqg->ref, 1);
 
-        /* Add group onto cgroup list */
-        sscanf(dev_name(bdi->dev), "%u:%u", &major, &minor);
-        cfq_blkiocg_add_blkio_group(blkcg, &cfqg->blkg, (void *)cfqd,
+        /*
+         * Add group onto cgroup list. It might happen that bdi->dev is
+         * not initiliazed yet. Initialize this new group without major
+         * and minor info and this info will be filled in once a new thread
+         * comes for IO. See code above.
+         */
+        if (bdi->dev) {
+                sscanf(dev_name(bdi->dev), "%u:%u", &major, &minor);
+                cfq_blkiocg_add_blkio_group(blkcg, &cfqg->blkg, (void *)cfqd,
                                         MKDEV(major, minor));
+        } else
+                cfq_blkiocg_add_blkio_group(blkcg, &cfqg->blkg, (void *)cfqd,
+                                        0);
+
         cfqg->weight = blkcg_get_weight(blkcg, cfqg->blkg.dev);
 
         /* Add group on cfqd list */
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 6124c2fd2d33..5e4fadcdece9 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -4792,7 +4792,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
 clean4:
         kfree(h->cmd_pool_bits);
         /* Free up sg elements */
-        for (k = 0; k < h->nr_cmds; k++)
+        for (k-- ; k >= 0; k--)
                 kfree(h->scatter_list[k]);
         kfree(h->scatter_list);
         cciss_free_sg_chain_blocks(h->cmd_sg_list, h->nr_cmds);
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index eab58db5f91c..cd18493c9527 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -806,6 +806,8 @@ static const struct intel_driver_description {
             "G45/G43", NULL, &intel_i965_driver },
         { PCI_DEVICE_ID_INTEL_B43_HB, PCI_DEVICE_ID_INTEL_B43_IG,
             "B43", NULL, &intel_i965_driver },
+        { PCI_DEVICE_ID_INTEL_B43_1_HB, PCI_DEVICE_ID_INTEL_B43_1_IG,
+            "B43", NULL, &intel_i965_driver },
         { PCI_DEVICE_ID_INTEL_G41_HB, PCI_DEVICE_ID_INTEL_G41_IG,
             "G41", NULL, &intel_i965_driver },
         { PCI_DEVICE_ID_INTEL_IRONLAKE_D_HB, PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG,
diff --git a/drivers/char/agp/intel-agp.h b/drivers/char/agp/intel-agp.h
index ee189c74d345..d09b1ab7e8ab 100644
--- a/drivers/char/agp/intel-agp.h
+++ b/drivers/char/agp/intel-agp.h
@@ -186,6 +186,8 @@
 #define PCI_DEVICE_ID_INTEL_Q33_IG          0x29D2
 #define PCI_DEVICE_ID_INTEL_B43_HB          0x2E40
 #define PCI_DEVICE_ID_INTEL_B43_IG          0x2E42
+#define PCI_DEVICE_ID_INTEL_B43_1_HB        0x2E90
+#define PCI_DEVICE_ID_INTEL_B43_1_IG        0x2E92
 #define PCI_DEVICE_ID_INTEL_GM45_HB         0x2A40
 #define PCI_DEVICE_ID_INTEL_GM45_IG         0x2A42
 #define PCI_DEVICE_ID_INTEL_EAGLELAKE_HB        0x2E00
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 3822b4f49c84..7bd7c45b53ef 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -305,6 +305,9 @@ static int num_force_kipmid;
 #ifdef CONFIG_PCI
 static int pci_registered;
 #endif
+#ifdef CONFIG_ACPI
+static int pnp_registered;
+#endif
 #ifdef CONFIG_PPC_OF
 static int of_registered;
 #endif
@@ -2126,7 +2129,7 @@ static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
 {
         struct acpi_device *acpi_dev;
         struct smi_info *info;
-        struct resource *res;
+        struct resource *res, *res_second;
         acpi_handle handle;
         acpi_status status;
         unsigned long long tmp;
@@ -2182,13 +2185,13 @@ static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
         info->io.addr_data = res->start;
 
         info->io.regspacing = DEFAULT_REGSPACING;
-        res = pnp_get_resource(dev,
+        res_second = pnp_get_resource(dev,
                                (info->io.addr_type == IPMI_IO_ADDR_SPACE) ?
                                         IORESOURCE_IO : IORESOURCE_MEM,
                                1);
-        if (res) {
-                if (res->start > info->io.addr_data)
-                        info->io.regspacing = res->start - info->io.addr_data;
+        if (res_second) {
+                if (res_second->start > info->io.addr_data)
+                        info->io.regspacing = res_second->start - info->io.addr_data;
         }
         info->io.regsize = DEFAULT_REGSPACING;
         info->io.regshift = 0;
@@ -3359,6 +3362,7 @@ static __devinit int init_ipmi_si(void)
 
 #ifdef CONFIG_ACPI
         pnp_register_driver(&ipmi_pnp_driver);
+        pnp_registered = 1;
 #endif
 
 #ifdef CONFIG_DMI
@@ -3526,7 +3530,8 @@ static __exit void cleanup_ipmi_si(void)
                 pci_unregister_driver(&ipmi_pci_driver);
 #endif
 #ifdef CONFIG_ACPI
-        pnp_unregister_driver(&ipmi_pnp_driver);
+        if (pnp_registered)
+                pnp_unregister_driver(&ipmi_pnp_driver);
 #endif
 
 #ifdef CONFIG_PPC_OF
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index a398ecdbd758..1f528fad3516 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -788,10 +788,11 @@ static const struct file_operations zero_fops = {
 /*
  * capabilities for /dev/zero
  * - permits private mappings, "copies" are taken of the source of zeros
+ * - no writeback happens
  */
 static struct backing_dev_info zero_bdi = {
         .name           = "char/mem",
-        .capabilities   = BDI_CAP_MAP_COPY,
+        .capabilities   = BDI_CAP_MAP_COPY | BDI_CAP_NO_ACCT_AND_WRITEBACK,
 };
 
 static const struct file_operations full_fops = {
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 942a9826bd23..c810481a5bc2 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -596,6 +596,10 @@ static ssize_t port_fops_write(struct file *filp, const char __user *ubuf,
         ssize_t ret;
         bool nonblock;
 
+        /* Userspace could be out to fool us */
+        if (!count)
+                return 0;
+
         port = filp->private_data;
 
         nonblock = filp->f_flags & O_NONBLOCK;
@@ -642,7 +646,7 @@ static unsigned int port_fops_poll(struct file *filp, poll_table *wait)
         poll_wait(filp, &port->waitqueue, wait);
 
         ret = 0;
-        if (port->inbuf)
+        if (!will_read_block(port))
                 ret |= POLLIN | POLLRDNORM;
         if (!will_write_block(port))
                 ret |= POLLOUT;
diff --git a/drivers/gpu/drm/drm_buffer.c b/drivers/gpu/drm/drm_buffer.c
index 55d03ed05000..529a0dbe9fc6 100644
--- a/drivers/gpu/drm/drm_buffer.c
+++ b/drivers/gpu/drm/drm_buffer.c
@@ -98,8 +98,8 @@ EXPORT_SYMBOL(drm_buffer_alloc);
  *   user_data: A pointer the data that is copied to the buffer.
  *   size: The Number of bytes to copy.
  */
-extern int drm_buffer_copy_from_user(struct drm_buffer *buf,
-                void __user *user_data, int size)
+int drm_buffer_copy_from_user(struct drm_buffer *buf,
+                              void __user *user_data, int size)
 {
         int nr_pages = size / PAGE_SIZE + 1;
         int idx;
@@ -163,7 +163,7 @@ void *drm_buffer_read_object(struct drm_buffer *buf,
 {
         int idx = drm_buffer_index(buf);
         int page = drm_buffer_page(buf);
-        void *obj = 0;
+        void *obj = NULL;
 
         if (idx + objsize <= PAGE_SIZE) {
                 obj = &buf->data[page][idx];
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 216deb579785..6dbe14cc4f74 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -170,6 +170,7 @@ static const struct pci_device_id pciidlist[] = {		/* aka */
         INTEL_VGA_DEVICE(0x2e22, &intel_g45_info),              /* G45_G */
         INTEL_VGA_DEVICE(0x2e32, &intel_g45_info),              /* G41_G */
         INTEL_VGA_DEVICE(0x2e42, &intel_g45_info),              /* B43_G */
+        INTEL_VGA_DEVICE(0x2e92, &intel_g45_info),              /* B43_G.1 */
         INTEL_VGA_DEVICE(0xa001, &intel_pineview_info),
         INTEL_VGA_DEVICE(0xa011, &intel_pineview_info),
         INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info),
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 16fca1d1799a..cf4ffbee1c00 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2351,14 +2351,21 @@ i915_gem_object_get_fence_reg(struct drm_gem_object *obj)
 
         reg->obj = obj;
 
-        if (IS_GEN6(dev))
+        switch (INTEL_INFO(dev)->gen) {
+        case 6:
                 sandybridge_write_fence_reg(reg);
-        else if (IS_I965G(dev))
+                break;
+        case 5:
+        case 4:
                 i965_write_fence_reg(reg);
-        else if (IS_I9XX(dev))
+                break;
+        case 3:
                 i915_write_fence_reg(reg);
-        else
+                break;
+        case 2:
                 i830_write_fence_reg(reg);
+                break;
+        }
 
         trace_i915_gem_object_get_fence(obj, obj_priv->fence_reg,
                         obj_priv->tiling_mode);
@@ -2381,22 +2388,26 @@ i915_gem_clear_fence_reg(struct drm_gem_object *obj)
         struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
         struct drm_i915_fence_reg *reg =
                 &dev_priv->fence_regs[obj_priv->fence_reg];
+        uint32_t fence_reg;
 
-        if (IS_GEN6(dev)) {
+        switch (INTEL_INFO(dev)->gen) {
+        case 6:
                 I915_WRITE64(FENCE_REG_SANDYBRIDGE_0 +
                              (obj_priv->fence_reg * 8), 0);
-        } else if (IS_I965G(dev)) {
+                break;
+        case 5:
+        case 4:
                 I915_WRITE64(FENCE_REG_965_0 + (obj_priv->fence_reg * 8), 0);
-        } else {
-                uint32_t fence_reg;
-
-                if (obj_priv->fence_reg < 8)
-                        fence_reg = FENCE_REG_830_0 + obj_priv->fence_reg * 4;
+                break;
+        case 3:
+                if (obj_priv->fence_reg > 8)
+                        fence_reg = FENCE_REG_945_8 + (obj_priv->fence_reg - 8) * 4;
                 else
-                        fence_reg = FENCE_REG_945_8 + (obj_priv->fence_reg -
-                                                       8) * 4;
+        case 2:
+                        fence_reg = FENCE_REG_830_0 + obj_priv->fence_reg * 4;
 
                 I915_WRITE(fence_reg, 0);
+                break;
         }
 
         reg->obj = NULL;
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index 72cae3cccad8..e85246ef691c 100644
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -79,6 +79,7 @@ mark_free(struct drm_i915_gem_object *obj_priv,
            struct list_head *unwind)
 {
         list_add(&obj_priv->evict_list, unwind);
+        drm_gem_object_reference(&obj_priv->base);
         return drm_mm_scan_add_block(obj_priv->gtt_space);
 }
 
@@ -165,6 +166,7 @@ i915_gem_evict_something(struct drm_device *dev, int min_size, unsigned alignmen
         list_for_each_entry(obj_priv, &unwind_list, evict_list) {
                 ret = drm_mm_scan_remove_block(obj_priv->gtt_space);
                 BUG_ON(ret);
+                drm_gem_object_unreference(&obj_priv->base);
         }
 
         /* We expect the caller to unpin, evict all and try again, or give up.
@@ -181,18 +183,21 @@ found:
                          * scanning, therefore store to be evicted objects on a
                          * temporary list. */
                         list_move(&obj_priv->evict_list, &eviction_list);
-                }
+                } else
+                        drm_gem_object_unreference(&obj_priv->base);
         }
 
         /* Unbinding will emit any required flushes */
         list_for_each_entry_safe(obj_priv, tmp_obj_priv,
                                  &eviction_list, evict_list) {
 #if WATCH_LRU
-                DRM_INFO("%s: evicting %p\n", __func__, obj);
+                DRM_INFO("%s: evicting %p\n", __func__, &obj_priv->base);
 #endif
                 ret = i915_gem_object_unbind(&obj_priv->base);
                 if (ret)
                         return ret;
+
+                drm_gem_object_unreference(&obj_priv->base);
         }
 
         /* The just created free hole should be on the top of the free stack
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index 2c6b98f2440e..31f08581e93a 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -789,16 +789,25 @@ int i915_save_state(struct drm_device *dev)
                 dev_priv->saveSWF2[i] = I915_READ(SWF30 + (i << 2));
 
         /* Fences */
-        if (IS_I965G(dev)) {
+        switch (INTEL_INFO(dev)->gen) {
+        case 6:
+                for (i = 0; i < 16; i++)
+                        dev_priv->saveFENCE[i] = I915_READ64(FENCE_REG_SANDYBRIDGE_0 + (i * 8));
+                break;
+        case 5:
+        case 4:
                 for (i = 0; i < 16; i++)
                         dev_priv->saveFENCE[i] = I915_READ64(FENCE_REG_965_0 + (i * 8));
-        } else {
-                for (i = 0; i < 8; i++)
-                        dev_priv->saveFENCE[i] = I915_READ(FENCE_REG_830_0 + (i * 4));
-
+                break;
+        case 3:
                 if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
                         for (i = 0; i < 8; i++)
                                 dev_priv->saveFENCE[i+8] = I915_READ(FENCE_REG_945_8 + (i * 4));
+        case 2:
+                for (i = 0; i < 8; i++)
+                        dev_priv->saveFENCE[i] = I915_READ(FENCE_REG_830_0 + (i * 4));
+                break;
+
         }
 
         return 0;
@@ -815,15 +824,24 @@ int i915_restore_state(struct drm_device *dev)
         I915_WRITE(HWS_PGA, dev_priv->saveHWS);
 
         /* Fences */
-        if (IS_I965G(dev)) {
+        switch (INTEL_INFO(dev)->gen) {
+        case 6:
+                for (i = 0; i < 16; i++)
+                        I915_WRITE64(FENCE_REG_SANDYBRIDGE_0 + (i * 8), dev_priv->saveFENCE[i]);
+                break;
+        case 5:
+        case 4:
                 for (i = 0; i < 16; i++)
                         I915_WRITE64(FENCE_REG_965_0 + (i * 8), dev_priv->saveFENCE[i]);
-        } else {
-                for (i = 0; i < 8; i++)
-                        I915_WRITE(FENCE_REG_830_0 + (i * 4), dev_priv->saveFENCE[i]);
+                break;
+        case 3:
+        case 2:
                 if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
                         for (i = 0; i < 8; i++)
                                 I915_WRITE(FENCE_REG_945_8 + (i * 4), dev_priv->saveFENCE[i+8]);
+                for (i = 0; i < 8; i++)
+                        I915_WRITE(FENCE_REG_830_0 + (i * 4), dev_priv->saveFENCE[i]);
+                break;
         }
 
         i915_restore_display(dev);
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index a02a8df73727..197d4f32585a 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -188,7 +188,7 @@ static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector)
 
         if (wait_for((I915_READ(PCH_ADPA) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) == 0,
                      1000, 1))
-                DRM_ERROR("timed out waiting for FORCE_TRIGGER");
+                DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER");
 
         if (turn_off_dac) {
                 I915_WRITE(PCH_ADPA, temp);
@@ -245,7 +245,7 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector)
                 if (wait_for((I915_READ(PORT_HOTPLUG_EN) &
                               CRT_HOTPLUG_FORCE_DETECT) == 0,
                              1000, 1))
-                        DRM_ERROR("timed out waiting for FORCE_DETECT to go off");
+                        DRM_DEBUG_KMS("timed out waiting for FORCE_DETECT to go off");
         }
 
         stat = I915_READ(PORT_HOTPLUG_STAT);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 19daead5b525..b5bf51a4502d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2463,11 +2463,19 @@ static bool intel_crtc_mode_fixup(struct drm_crtc *crtc,
                                   struct drm_display_mode *adjusted_mode)
 {
         struct drm_device *dev = crtc->dev;
+
         if (HAS_PCH_SPLIT(dev)) {
                 /* FDI link clock is fixed at 2.7G */
                 if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4)
                         return false;
         }
+
+        /* XXX some encoders set the crtcinfo, others don't.
+         * Obviously we need some form of conflict resolution here...
+         */
+        if (adjusted_mode->crtc_htotal == 0)
+                drm_mode_set_crtcinfo(adjusted_mode, 0);
+
         return true;
 }
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 87186a4bbf03..fc737037f751 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -558,8 +558,10 @@ nouveau_connector_get_modes(struct drm_connector *connector)
         if (nv_encoder->dcb->type == OUTPUT_LVDS &&
             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
              dev_priv->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
-                nv_connector->native_mode = drm_mode_create(dev);
-                nouveau_bios_fp_mode(dev, nv_connector->native_mode);
+                struct drm_display_mode mode;
+
+                nouveau_bios_fp_mode(dev, &mode);
+                nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
         }
 
         /* Find the native mode if this is a digital panel, if we didn't
diff --git a/drivers/gpu/drm/radeon/atombios.h b/drivers/gpu/drm/radeon/atombios.h
index 1bc72c3190a9..fe359a239df3 100644
--- a/drivers/gpu/drm/radeon/atombios.h
+++ b/drivers/gpu/drm/radeon/atombios.h
@@ -4999,7 +4999,7 @@ typedef struct _SW_I2C_IO_DATA_PARAMETERS
 #define SW_I2C_CNTL_WRITE1BIT 6
 
 //==============================VESA definition Portion===============================
-#define VESA_OEM_PRODUCT_REV                                '01.00'
+#define VESA_OEM_PRODUCT_REV                                "01.00"
 #define VESA_MODE_ATTRIBUTE_MODE_SUPPORT             0xBB       //refer to VBE spec p.32, no TTY support
 #define VESA_MODE_WIN_ATTRIBUTE                                              7
 #define VESA_WIN_SIZE                                                                                        64
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index afc18d87fdca..ddc3adea1dda 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2729,7 +2729,7 @@ int r600_ib_test(struct radeon_device *rdev)
         if (i < rdev->usec_timeout) {
                 DRM_INFO("ib test succeeded in %u usecs\n", i);
         } else {
-                DRM_ERROR("radeon: ib test failed (sracth(0x%04X)=0x%08X)\n",
+                DRM_ERROR("radeon: ib test failed (scratch(0x%04X)=0x%08X)\n",
                           scratch, tmp);
                 r = -EINVAL;
         }
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 5eee3c41d124..8fbbe1c6ebbd 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -203,6 +203,10 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
  */
 int radeon_driver_firstopen_kms(struct drm_device *dev)
 {
+        struct radeon_device *rdev = dev->dev_private;
+
+        if (rdev->powered_down)
+                return -EINVAL;
         return 0;
 }
 
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 7cffb3e04232..3451a82adba7 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -351,6 +351,7 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
         INIT_LIST_HEAD(&fbo->lru);
         INIT_LIST_HEAD(&fbo->swap);
         fbo->vm_node = NULL;
+        atomic_set(&fbo->cpu_writers, 0);
 
         fbo->sync_obj = driver->sync_obj_ref(bo->sync_obj);
         kref_init(&fbo->list_kref);
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index ca904799f018..b1e02fffd3cc 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -69,7 +69,7 @@ struct ttm_page_pool {
         spinlock_t              lock;
         bool                    fill_lock;
         struct list_head        list;
-        int                     gfp_flags;
+        gfp_t                   gfp_flags;
         unsigned                npages;
         char                    *name;
         unsigned long           nfrees;
@@ -475,7 +475,7 @@ static void ttm_handle_caching_state_failure(struct list_head *pages,
  * This function is reentrant if caller updates count depending on number of
  * pages returned in pages array.
  */
-static int ttm_alloc_new_pages(struct list_head *pages, int gfp_flags,
+static int ttm_alloc_new_pages(struct list_head *pages, gfp_t gfp_flags,
                 int ttm_flags, enum ttm_caching_state cstate, unsigned count)
 {
         struct page **caching_array;
@@ -666,7 +666,7 @@ int ttm_get_pages(struct list_head *pages, int flags,
 {
         struct ttm_page_pool *pool = ttm_get_pool(flags, cstate);
         struct page *p = NULL;
-        int gfp_flags = GFP_USER;
+        gfp_t gfp_flags = GFP_USER;
         int r;
 
         /* set zero flag for page allocation if required */
@@ -818,7 +818,7 @@ int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages)
         return 0;
 }
 
-void ttm_page_alloc_fini()
+void ttm_page_alloc_fini(void)
 {
         int i;
 
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c
index b87569e96b16..f366f968155a 100644
--- a/drivers/gpu/vga/vgaarb.c
+++ b/drivers/gpu/vga/vgaarb.c
@@ -598,7 +598,7 @@ static inline void vga_update_device_decodes(struct vga_device *vgadev,
         pr_debug("vgaarb: decoding count now is: %d\n", vga_decode_count);
 }
 
-void __vga_set_legacy_decoding(struct pci_dev *pdev, unsigned int decodes, bool userspace)
+static void __vga_set_legacy_decoding(struct pci_dev *pdev, unsigned int decodes, bool userspace)
 {
         struct vga_device *vgadev;
         unsigned long flags;
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 4d4d09bdec0a..97499d00615a 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -409,7 +409,7 @@ config SENSORS_CORETEMP
 
 config SENSORS_PKGTEMP
         tristate "Intel processor package temperature sensor"
-        depends on X86 && PCI && EXPERIMENTAL
+        depends on X86 && EXPERIMENTAL
         help
           If you say yes here you get support for the package level temperature
           sensor inside your CPU. Check documentation/driver for details.
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index de8111114f46..baa842a80b4b 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -423,9 +423,18 @@ static int __cpuinit coretemp_device_add(unsigned int cpu)
         int err;
         struct platform_device *pdev;
         struct pdev_entry *pdev_entry;
-#ifdef CONFIG_SMP
         struct cpuinfo_x86 *c = &cpu_data(cpu);
-#endif
+
+        /*
+         * CPUID.06H.EAX[0] indicates whether the CPU has thermal
+         * sensors. We check this bit only, all the early CPUs
+         * without thermal sensors will be filtered out.
+         */
+        if (!cpu_has(c, X86_FEATURE_DTS)) {
+                printk(KERN_INFO DRVNAME ": CPU (model=0x%x)"
+                       " has no thermal sensor.\n", c->x86_model);
+                return 0;
+        }
 
         mutex_lock(&pdev_list_mutex);
 
@@ -482,14 +491,22 @@ exit:
 
 static void coretemp_device_remove(unsigned int cpu)
 {
-        struct pdev_entry *p, *n;
+        struct pdev_entry *p;
+        unsigned int i;
+
         mutex_lock(&pdev_list_mutex);
-        list_for_each_entry_safe(p, n, &pdev_list, list) {
-                if (p->cpu == cpu) {
-                        platform_device_unregister(p->pdev);
-                        list_del(&p->list);
-                        kfree(p);
-                }
+        list_for_each_entry(p, &pdev_list, list) {
+                if (p->cpu != cpu)
+                        continue;
+
+                platform_device_unregister(p->pdev);
+                list_del(&p->list);
+                mutex_unlock(&pdev_list_mutex);
+                kfree(p);
+                for_each_cpu(i, cpu_sibling_mask(cpu))
+                        if (i != cpu && !coretemp_device_add(i))
+                                break;
+                return;
         }
         mutex_unlock(&pdev_list_mutex);
 }
@@ -527,30 +544,21 @@ static int __init coretemp_init(void)
         if (err)
                 goto exit;
 
-        for_each_online_cpu(i) {
-                struct cpuinfo_x86 *c = &cpu_data(i);
-                /*
-                 * CPUID.06H.EAX[0] indicates whether the CPU has thermal
-                 * sensors. We check this bit only, all the early CPUs
-                 * without thermal sensors will be filtered out.
-                 */
-                if (c->cpuid_level >= 6 && (cpuid_eax(0x06) & 0x01))
-                        coretemp_device_add(i);
-                else {
-                        printk(KERN_INFO DRVNAME ": CPU (model=0x%x)"
-                                " has no thermal sensor.\n", c->x86_model);
-                }
-        }
+        for_each_online_cpu(i)
+                coretemp_device_add(i);
+
+#ifndef CONFIG_HOTPLUG_CPU
         if (list_empty(&pdev_list)) {
                 err = -ENODEV;
                 goto exit_driver_unreg;
         }
+#endif
 
         register_hotcpu_notifier(&coretemp_cpu_notifier);
         return 0;
 
-exit_driver_unreg:
 #ifndef CONFIG_HOTPLUG_CPU
+exit_driver_unreg:
         platform_driver_unregister(&coretemp_driver);
 #endif
 exit:
diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c
index 6138f036b159..fc591ae53107 100644
--- a/drivers/hwmon/lis3lv02d.c
+++ b/drivers/hwmon/lis3lv02d.c
@@ -277,7 +277,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *dummy)
         wake_up_interruptible(&lis3_dev.misc_wait);
         kill_fasync(&lis3_dev.async_queue, SIGIO, POLL_IN);
 out:
-        if (lis3_dev.whoami == WAI_8B && lis3_dev.idev &&
+        if (lis3_dev.pdata && lis3_dev.whoami == WAI_8B && lis3_dev.idev &&
             lis3_dev.idev->input->users)
                 return IRQ_WAKE_THREAD;
         return IRQ_HANDLED;
@@ -718,7 +718,7 @@ int lis3lv02d_init_device(struct lis3lv02d *dev)
          * io-apic is not configurable (and generates a warning) but I keep it
          * in case of support for other hardware.
          */
-        if (dev->whoami == WAI_8B)
+        if (dev->pdata && dev->whoami == WAI_8B)
                 thread_fn = lis302dl_interrupt_thread1_8b;
         else
                 thread_fn = NULL;
diff --git a/drivers/hwmon/pkgtemp.c b/drivers/hwmon/pkgtemp.c
index 74157fcda6ed..f11903936c8b 100644
--- a/drivers/hwmon/pkgtemp.c
+++ b/drivers/hwmon/pkgtemp.c
@@ -33,7 +33,6 @@
 #include <linux/list.h>
 #include <linux/platform_device.h>
 #include <linux/cpu.h>
-#include <linux/pci.h>
 #include <asm/msr.h>
 #include <asm/processor.h>
 
@@ -224,7 +223,7 @@ static int __devinit pkgtemp_probe(struct platform_device *pdev)
 
         err = sysfs_create_group(&pdev->dev.kobj, &pkgtemp_group);
         if (err)
-                goto exit_free;
+                goto exit_dev;
 
         data->hwmon_dev = hwmon_device_register(&pdev->dev);
         if (IS_ERR(data->hwmon_dev)) {
@@ -238,6 +237,8 @@ static int __devinit pkgtemp_probe(struct platform_device *pdev)
 
 exit_class:
         sysfs_remove_group(&pdev->dev.kobj, &pkgtemp_group);
+exit_dev:
+        device_remove_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
 exit_free:
         kfree(data);
 exit:
@@ -250,6 +251,7 @@ static int __devexit pkgtemp_remove(struct platform_device *pdev)
 
         hwmon_device_unregister(data->hwmon_dev);
         sysfs_remove_group(&pdev->dev.kobj, &pkgtemp_group);
+        device_remove_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
         platform_set_drvdata(pdev, NULL);
         kfree(data);
         return 0;
@@ -281,9 +283,10 @@ static int __cpuinit pkgtemp_device_add(unsigned int cpu)
         int err;
         struct platform_device *pdev;
         struct pdev_entry *pdev_entry;
-#ifdef CONFIG_SMP
         struct cpuinfo_x86 *c = &cpu_data(cpu);
-#endif
+
+        if (!cpu_has(c, X86_FEATURE_PTS))
+                return 0;
 
         mutex_lock(&pdev_list_mutex);
 
@@ -339,17 +342,18 @@ exit:
 #ifdef CONFIG_HOTPLUG_CPU
 static void pkgtemp_device_remove(unsigned int cpu)
 {
-        struct pdev_entry *p, *n;
+        struct pdev_entry *p;
         unsigned int i;
         int err;
 
         mutex_lock(&pdev_list_mutex);
-        list_for_each_entry_safe(p, n, &pdev_list, list) {
+        list_for_each_entry(p, &pdev_list, list) {
                 if (p->cpu != cpu)
                         continue;
 
                 platform_device_unregister(p->pdev);
                 list_del(&p->list);
+                mutex_unlock(&pdev_list_mutex);
                 kfree(p);
                 for_each_cpu(i, cpu_core_mask(cpu)) {
                         if (i != cpu) {
@@ -358,7 +362,7 @@ static void pkgtemp_device_remove(unsigned int cpu)
                                         break;
                         }
                 }
-                break;
+                return;
         }
         mutex_unlock(&pdev_list_mutex);
 }
@@ -399,11 +403,6 @@ static int __init pkgtemp_init(void)
                 goto exit;
 
         for_each_online_cpu(i) {
-                struct cpuinfo_x86 *c = &cpu_data(i);
-
-                if (!cpu_has(c, X86_FEATURE_PTS))
-                        continue;
-
                 err = pkgtemp_device_add(i);
                 if (err)
                         goto exit_devices_unreg;
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 7674efb55378..b33c78586bfc 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -680,6 +680,8 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
 
         if (r == 0)
                 r = num;
+
+        omap_i2c_wait_for_bb(dev);
 out:
         omap_i2c_idle(dev);
         return r;
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 0b591b658243..b74331260744 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -368,7 +368,7 @@ config VMWARE_BALLOON
           If unsure, say N.
 
           To compile this driver as a module, choose M here: the
-          module will be called vmware_balloon.
+          module will be called vmw_balloon.
 
 config ARM_CHARLCD
         bool "ARM Ltd. Character LCD Driver"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 255a80dc9d73..42eab95cde2a 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -33,5 +33,5 @@ obj-$(CONFIG_IWMC3200TOP)      += iwmc3200top/
 obj-$(CONFIG_HMC6352)           += hmc6352.o
 obj-y                           += eeprom/
 obj-y                           += cb710/
-obj-$(CONFIG_VMWARE_BALLOON)    += vmware_balloon.o
+obj-$(CONFIG_VMWARE_BALLOON)    += vmw_balloon.o
 obj-$(CONFIG_ARM_CHARLCD)       += arm-charlcd.o
diff --git a/drivers/misc/vmware_balloon.c b/drivers/misc/vmw_balloon.c
index 2a1e804a71aa..2a1e804a71aa 100644
--- a/drivers/misc/vmware_balloon.c
+++ b/drivers/misc/vmw_balloon.c
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index c3ceebb5be84..5ac2aa783f58 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -71,6 +71,49 @@
 #define DMA_32BIT_PFN           IOVA_PFN(DMA_BIT_MASK(32))
 #define DMA_64BIT_PFN           IOVA_PFN(DMA_BIT_MASK(64))
 
+/* page table handling */
+#define LEVEL_STRIDE            (9)
+#define LEVEL_MASK              (((u64)1 << LEVEL_STRIDE) - 1)
+
+static inline int agaw_to_level(int agaw)
+{
+        return agaw + 2;
+}
+
+static inline int agaw_to_width(int agaw)
+{
+        return 30 + agaw * LEVEL_STRIDE;
+}
+
+static inline int width_to_agaw(int width)
+{
+        return (width - 30) / LEVEL_STRIDE;
+}
+
+static inline unsigned int level_to_offset_bits(int level)
+{
+        return (level - 1) * LEVEL_STRIDE;
+}
+
+static inline int pfn_level_offset(unsigned long pfn, int level)
+{
+        return (pfn >> level_to_offset_bits(level)) & LEVEL_MASK;
+}
+
+static inline unsigned long level_mask(int level)
+{
+        return -1UL << level_to_offset_bits(level);
+}
+
+static inline unsigned long level_size(int level)
+{
+        return 1UL << level_to_offset_bits(level);
+}
+
+static inline unsigned long align_to_level(unsigned long pfn, int level)
+{
+        return (pfn + level_size(level) - 1) & level_mask(level);
+}
 
 /* VT-d pages must always be _smaller_ than MM pages. Otherwise things
    are never going to work. */
@@ -434,8 +477,6 @@ void free_iova_mem(struct iova *iova)
 }
 
 
-static inline int width_to_agaw(int width);
-
 static int __iommu_calculate_agaw(struct intel_iommu *iommu, int max_gaw)
 {
         unsigned long sagaw;
@@ -646,51 +687,6 @@ out:
         spin_unlock_irqrestore(&iommu->lock, flags);
 }
 
-/* page table handling */
-#define LEVEL_STRIDE            (9)
-#define LEVEL_MASK              (((u64)1 << LEVEL_STRIDE) - 1)
-
-static inline int agaw_to_level(int agaw)
-{
-        return agaw + 2;
-}
-
-static inline int agaw_to_width(int agaw)
-{
-        return 30 + agaw * LEVEL_STRIDE;
-
-}
-
-static inline int width_to_agaw(int width)
-{
-        return (width - 30) / LEVEL_STRIDE;
-}
-
-static inline unsigned int level_to_offset_bits(int level)
-{
-        return (level - 1) * LEVEL_STRIDE;
-}
-
-static inline int pfn_level_offset(unsigned long pfn, int level)
-{
-        return (pfn >> level_to_offset_bits(level)) & LEVEL_MASK;
-}
-
-static inline unsigned long level_mask(int level)
-{
-        return -1UL << level_to_offset_bits(level);
-}
-
-static inline unsigned long level_size(int level)
-{
-        return 1UL << level_to_offset_bits(level);
-}
-
-static inline unsigned long align_to_level(unsigned long pfn, int level)
-{
-        return (pfn + level_size(level) - 1) & level_mask(level);
-}
-
 static struct dma_pte *pfn_to_dma_pte(struct dmar_domain *domain,
                                       unsigned long pfn)
 {
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index e35ed128bdef..2d61186ad5a2 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -3093,7 +3093,8 @@ static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = {
         TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */
 };
 
-typedef u16 tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN];
+typedef u16 tpacpi_keymap_entry_t;
+typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN];
 
 static int __init hotkey_init(struct ibm_init_struct *iibm)
 {
@@ -3230,7 +3231,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
         };
 
 #define TPACPI_HOTKEY_MAP_SIZE          sizeof(tpacpi_keymap_t)
-#define TPACPI_HOTKEY_MAP_TYPESIZE      sizeof(tpacpi_keymap_t[0])
+#define TPACPI_HOTKEY_MAP_TYPESIZE      sizeof(tpacpi_keymap_entry_t)
 
         int res, i;
         int status;
diff --git a/drivers/rtc/rtc-ab3100.c b/drivers/rtc/rtc-ab3100.c
index d26780ea254b..261a07e0fb24 100644
--- a/drivers/rtc/rtc-ab3100.c
+++ b/drivers/rtc/rtc-ab3100.c
@@ -235,6 +235,7 @@ static int __init ab3100_rtc_probe(struct platform_device *pdev)
                 err = PTR_ERR(rtc);
                 return err;
         }
+        platform_set_drvdata(pdev, rtc);
 
         return 0;
 }
@@ -244,6 +245,7 @@ static int __exit ab3100_rtc_remove(struct platform_device *pdev)
         struct rtc_device *rtc = platform_get_drvdata(pdev);
 
         rtc_device_unregister(rtc);
+        platform_set_drvdata(pdev, NULL);
         return 0;
 }
 
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index a0d3ec89d412..f57a87f4ae96 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -310,11 +310,6 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 
         s3c_rtc_setaie(alrm->enabled);
 
-        if (alrm->enabled)
-                enable_irq_wake(s3c_rtc_alarmno);
-        else
-                disable_irq_wake(s3c_rtc_alarmno);
-
         return 0;
 }
 
@@ -587,6 +582,10 @@ static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state)
                 ticnt_en_save &= S3C64XX_RTCCON_TICEN;
         }
         s3c_rtc_enable(pdev, 0);
+
+        if (device_may_wakeup(&pdev->dev))
+                enable_irq_wake(s3c_rtc_alarmno);
+
         return 0;
 }
 
@@ -600,6 +599,10 @@ static int s3c_rtc_resume(struct platform_device *pdev)
                 tmp = readb(s3c_rtc_base + S3C2410_RTCCON);
                 writeb(tmp | ticnt_en_save, s3c_rtc_base + S3C2410_RTCCON);
         }
+
+        if (device_may_wakeup(&pdev->dev))
+                disable_irq_wake(s3c_rtc_alarmno);
+
         return 0;
 }
 #else
diff --git a/drivers/staging/ti-st/st.h b/drivers/staging/ti-st/st.h
index 9952579425b9..1b3060eb2921 100644
--- a/drivers/staging/ti-st/st.h
+++ b/drivers/staging/ti-st/st.h
@@ -80,5 +80,4 @@ struct st_proto_s {
 extern long st_register(struct st_proto_s *);
 extern long st_unregister(enum proto_type);
 
-extern struct platform_device *st_get_plat_device(void);
 #endif /* ST_H */
diff --git a/drivers/staging/ti-st/st_core.c b/drivers/staging/ti-st/st_core.c
index 063c9b1db1ab..b85d8bfdf600 100644
--- a/drivers/staging/ti-st/st_core.c
+++ b/drivers/staging/ti-st/st_core.c
@@ -38,7 +38,6 @@
 #include "st_ll.h"
 #include "st.h"
 
-#define VERBOSE
 /* strings to be used for rfkill entries and by
  * ST Core to be used for sysfs debug entry
  */
@@ -581,7 +580,7 @@ long st_register(struct st_proto_s *new_proto)
         long err = 0;
         unsigned long flags = 0;
 
-        st_kim_ref(&st_gdata);
+        st_kim_ref(&st_gdata, 0);
         pr_info("%s(%d) ", __func__, new_proto->type);
         if (st_gdata == NULL || new_proto == NULL || new_proto->recv == NULL
             || new_proto->reg_complete_cb == NULL) {
@@ -713,7 +712,7 @@ long st_unregister(enum proto_type type)
 
         pr_debug("%s: %d ", __func__, type);
 
-        st_kim_ref(&st_gdata);
+        st_kim_ref(&st_gdata, 0);
         if (type < ST_BT || type >= ST_MAX) {
                 pr_err(" protocol %d not supported", type);
                 return -EPROTONOSUPPORT;
@@ -767,7 +766,7 @@ long st_write(struct sk_buff *skb)
 #endif
         long len;
 
-        st_kim_ref(&st_gdata);
+        st_kim_ref(&st_gdata, 0);
         if (unlikely(skb == NULL || st_gdata == NULL
                 || st_gdata->tty == NULL)) {
                 pr_err("data/tty unavailable to perform write");
@@ -818,7 +817,7 @@ static int st_tty_open(struct tty_struct *tty)
         struct st_data_s *st_gdata;
         pr_info("%s ", __func__);
 
-        st_kim_ref(&st_gdata);
+        st_kim_ref(&st_gdata, 0);
         st_gdata->tty = tty;
         tty->disc_data = st_gdata;
 
diff --git a/drivers/staging/ti-st/st_core.h b/drivers/staging/ti-st/st_core.h
index e0c32d149f5f..8601320a679e 100644
--- a/drivers/staging/ti-st/st_core.h
+++ b/drivers/staging/ti-st/st_core.h
@@ -117,7 +117,7 @@ int st_core_init(struct st_data_s **);
 void st_core_exit(struct st_data_s *);
 
 /* ask for reference from KIM */
-void st_kim_ref(struct st_data_s **);
+void st_kim_ref(struct st_data_s **, int);
 
 #define GPS_STUB_TEST
 #ifdef GPS_STUB_TEST
diff --git a/drivers/staging/ti-st/st_kim.c b/drivers/staging/ti-st/st_kim.c
index b4a6c7fdc4e6..9e99463f76e8 100644
--- a/drivers/staging/ti-st/st_kim.c
+++ b/drivers/staging/ti-st/st_kim.c
@@ -72,11 +72,26 @@ const unsigned char *protocol_names[] = {
         PROTO_ENTRY(ST_GPS, "GPS"),
 };
 
+#define MAX_ST_DEVICES  3       /* Imagine 1 on each UART for now */
+struct platform_device *st_kim_devices[MAX_ST_DEVICES];
 
 /**********************************************************************/
 /* internal functions */
 
 /**
+ * st_get_plat_device -
+ *      function which returns the reference to the platform device
+ *      requested by id. As of now only 1 such device exists (id=0)
+ *      the context requesting for reference can get the id to be
+ *      requested by a. The protocol driver which is registering or
+ *      b. the tty device which is opened.
+ */
+static struct platform_device *st_get_plat_device(int id)
+{
+        return st_kim_devices[id];
+}
+
+/**
  * validate_firmware_response -
  *      function to return whether the firmware response was proper
  *      in case of error don't complete so that waiting for proper
@@ -353,7 +368,7 @@ void st_kim_chip_toggle(enum proto_type type, enum kim_gpio_state state)
         struct kim_data_s       *kim_gdata;
         pr_info(" %s ", __func__);
 
-        kim_pdev = st_get_plat_device();
+        kim_pdev = st_get_plat_device(0);
         kim_gdata = dev_get_drvdata(&kim_pdev->dev);
 
         if (kim_gdata->gpios[type] == -1) {
@@ -574,12 +589,12 @@ static int kim_toggle_radio(void *data, bool blocked)
  *      This would enable multiple such platform devices to exist
  *      on a given platform
  */
-void st_kim_ref(struct st_data_s **core_data)
+void st_kim_ref(struct st_data_s **core_data, int id)
 {
         struct platform_device  *pdev;
         struct kim_data_s       *kim_gdata;
         /* get kim_gdata reference from platform device */
-        pdev = st_get_plat_device();
+        pdev = st_get_plat_device(id);
         kim_gdata = dev_get_drvdata(&pdev->dev);
         *core_data = kim_gdata->core_data;
 }
@@ -623,6 +638,7 @@ static int kim_probe(struct platform_device *pdev)
         long *gpios = pdev->dev.platform_data;
         struct kim_data_s       *kim_gdata;
 
+        st_kim_devices[pdev->id] = pdev;
         kim_gdata = kzalloc(sizeof(struct kim_data_s), GFP_ATOMIC);
         if (!kim_gdata) {
                 pr_err("no mem to allocate");
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index 7e594449600e..9eed5b52d9de 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -91,12 +91,12 @@ config USB_DYNAMIC_MINORS
           If you are unsure about this, say N here.
 
 config USB_SUSPEND
-        bool "USB runtime power management (suspend/resume and wakeup)"
+        bool "USB runtime power management (autosuspend) and wakeup"
         depends on USB && PM_RUNTIME
         help
           If you say Y here, you can use driver calls or the sysfs
-          "power/level" file to suspend or resume individual USB
-          peripherals and to enable or disable autosuspend (see
+          "power/control" file to enable or disable autosuspend for
+          individual USB peripherals (see
           Documentation/usb/power-management.txt for more details).
 
           Also, USB "remote wakeup" signaling is supported, whereby some
diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index f06f5dbc8cdc..1e6ccef2cf0c 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -159,9 +159,9 @@ void usb_major_cleanup(void)
 int usb_register_dev(struct usb_interface *intf,
                      struct usb_class_driver *class_driver)
 {
-        int retval = -EINVAL;
+        int retval;
         int minor_base = class_driver->minor_base;
-        int minor = 0;
+        int minor;
         char name[20];
         char *temp;
 
@@ -173,12 +173,17 @@ int usb_register_dev(struct usb_interface *intf,
          */
         minor_base = 0;
 #endif
-        intf->minor = -1;
-
-        dbg ("looking for a minor, starting at %d", minor_base);
 
         if (class_driver->fops == NULL)
-                goto exit;
+                return -EINVAL;
+        if (intf->minor >= 0)
+                return -EADDRINUSE;
+
+        retval = init_usb_class();
+        if (retval)
+                return retval;
+
+        dev_dbg(&intf->dev, "looking for a minor, starting at %d", minor_base);
 
         down_write(&minor_rwsem);
         for (minor = minor_base; minor < MAX_USB_MINORS; ++minor) {
@@ -186,20 +191,12 @@ int usb_register_dev(struct usb_interface *intf,
                         continue;
 
                 usb_minors[minor] = class_driver->fops;
-
-                retval = 0;
+                intf->minor = minor;
                 break;
         }
         up_write(&minor_rwsem);
-
-        if (retval)
-                goto exit;
-
-        retval = init_usb_class();
-        if (retval)
-                goto exit;
-
-        intf->minor = minor;
+        if (intf->minor < 0)
+                return -EXFULL;
 
         /* create a usb class device for this usb interface */
         snprintf(name, sizeof(name), class_driver->name, minor - minor_base);
@@ -213,11 +210,11 @@ int usb_register_dev(struct usb_interface *intf,
                                       "%s", temp);
         if (IS_ERR(intf->usb_dev)) {
                 down_write(&minor_rwsem);
-                usb_minors[intf->minor] = NULL;
+                usb_minors[minor] = NULL;
+                intf->minor = -1;
                 up_write(&minor_rwsem);
                 retval = PTR_ERR(intf->usb_dev);
         }
-exit:
         return retval;
 }
 EXPORT_SYMBOL_GPL(usb_register_dev);
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 844683e50383..9f0ce7de0e36 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -1802,6 +1802,7 @@ free_interfaces:
                 intf->dev.groups = usb_interface_groups;
                 intf->dev.dma_mask = dev->dev.dma_mask;
                 INIT_WORK(&intf->reset_ws, __usb_queue_reset_device);
+                intf->minor = -1;
                 device_initialize(&intf->dev);
                 dev_set_name(&intf->dev, "%d-%s:%d.%d",
                         dev->bus->busnum, dev->devpath,
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 59dc3d351b60..5ab5bb89bae3 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -322,6 +322,7 @@ cppi_channel_allocate(struct dma_controller *c,
                                 index, transmit ? 'T' : 'R', cppi_ch);
         cppi_ch->hw_ep = ep;
         cppi_ch->channel.status = MUSB_DMA_STATUS_FREE;
+        cppi_ch->channel.max_len = 0x7fffffff;
 
         DBG(4, "Allocate CPPI%d %cX\n", index, transmit ? 'T' : 'R');
         return &cppi_ch->channel;
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 6fca870e957e..d065e23f123e 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -300,6 +300,11 @@ static void txstate(struct musb *musb, struct musb_request *req)
 #ifndef CONFIG_MUSB_PIO_ONLY
         if (is_dma_capable() && musb_ep->dma) {
                 struct dma_controller   *c = musb->dma_controller;
+                size_t request_size;
+
+                /* setup DMA, then program endpoint CSR */
+                request_size = min_t(size_t, request->length - request->actual,
+                                        musb_ep->dma->max_len);
 
                 use_dma = (request->dma != DMA_ADDR_INVALID);
 
@@ -307,11 +312,6 @@ static void txstate(struct musb *musb, struct musb_request *req)
 
 #ifdef CONFIG_USB_INVENTRA_DMA
                 {
-                        size_t request_size;
-
-                        /* setup DMA, then program endpoint CSR */
-                        request_size = min_t(size_t, request->length,
-                                                musb_ep->dma->max_len);
                         if (request_size < musb_ep->packet_sz)
                                 musb_ep->dma->desired_mode = 0;
                         else
@@ -373,8 +373,8 @@ static void txstate(struct musb *musb, struct musb_request *req)
                 use_dma = use_dma && c->channel_program(
                                 musb_ep->dma, musb_ep->packet_sz,
                                 0,
-                                request->dma,
-                                request->length);
+                                request->dma + request->actual,
+                                request_size);
                 if (!use_dma) {
                         c->channel_release(musb_ep->dma);
                         musb_ep->dma = NULL;
@@ -386,8 +386,8 @@ static void txstate(struct musb *musb, struct musb_request *req)
                 use_dma = use_dma && c->channel_program(
                                 musb_ep->dma, musb_ep->packet_sz,
                                 request->zero,
-                                request->dma,
-                                request->length);
+                                request->dma + request->actual,
+                                request_size);
 #endif
         }
 #endif
@@ -501,26 +501,14 @@ void musb_g_tx(struct musb *musb, u8 epnum)
                                 request->zero = 0;
                         }
 
-                        /* ... or if not, then complete it. */
-                        musb_g_giveback(musb_ep, request, 0);
-
-                        /*
-                         * Kickstart next transfer if appropriate;
-                         * the packet that just completed might not
-                         * be transmitted for hours or days.
-                         * REVISIT for double buffering...
-                         * FIXME revisit for stalls too...
-                         */
-                        musb_ep_select(mbase, epnum);
-                        csr = musb_readw(epio, MUSB_TXCSR);
-                        if (csr & MUSB_TXCSR_FIFONOTEMPTY)
-                                return;
-
-                        request = musb_ep->desc ? next_request(musb_ep) : NULL;
-                        if (!request) {
-                                DBG(4, "%s idle now\n",
-                                        musb_ep->end_point.name);
-                                return;
+                        if (request->actual == request->length) {
+                                musb_g_giveback(musb_ep, request, 0);
+                                request = musb_ep->desc ? next_request(musb_ep) : NULL;
+                                if (!request) {
+                                        DBG(4, "%s idle now\n",
+                                                musb_ep->end_point.name);
+                                        return;
+                                }
                         }
                 }
 
@@ -568,11 +556,19 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 {
         const u8                epnum = req->epnum;
         struct usb_request      *request = &req->request;
-        struct musb_ep          *musb_ep = &musb->endpoints[epnum].ep_out;
+        struct musb_ep          *musb_ep;
         void __iomem            *epio = musb->endpoints[epnum].regs;
         unsigned                fifo_count = 0;
-        u16                     len = musb_ep->packet_sz;
+        u16                     len;
         u16                     csr = musb_readw(epio, MUSB_RXCSR);
+        struct musb_hw_ep       *hw_ep = &musb->endpoints[epnum];
+
+        if (hw_ep->is_shared_fifo)
+                musb_ep = &hw_ep->ep_in;
+        else
+                musb_ep = &hw_ep->ep_out;
+
+        len = musb_ep->packet_sz;
 
         /* We shouldn't get here while DMA is active, but we do... */
         if (dma_channel_status(musb_ep->dma) == MUSB_DMA_STATUS_BUSY) {
@@ -647,8 +643,8 @@ static void rxstate(struct musb *musb, struct musb_request *req)
          */
 
                                 csr |= MUSB_RXCSR_DMAENAB;
-#ifdef USE_MODE1
                                 csr |= MUSB_RXCSR_AUTOCLEAR;
+#ifdef USE_MODE1
                                 /* csr |= MUSB_RXCSR_DMAMODE; */
 
                                 /* this special sequence (enabling and then
@@ -663,10 +659,11 @@ static void rxstate(struct musb *musb, struct musb_request *req)
                                 if (request->actual < request->length) {
                                         int transfer_size = 0;
 #ifdef USE_MODE1
-                                        transfer_size = min(request->length,
+                                        transfer_size = min(request->length - request->actual,
                                                         channel->max_len);
 #else
-                                        transfer_size = len;
+                                        transfer_size = min(request->length - request->actual,
+                                                        (unsigned)len);
 #endif
                                         if (transfer_size <= musb_ep->packet_sz)
                                                 musb_ep->dma->desired_mode = 0;
@@ -740,9 +737,15 @@ void musb_g_rx(struct musb *musb, u8 epnum)
         u16                     csr;
         struct usb_request      *request;
         void __iomem            *mbase = musb->mregs;
-        struct musb_ep          *musb_ep = &musb->endpoints[epnum].ep_out;
+        struct musb_ep          *musb_ep;
         void __iomem            *epio = musb->endpoints[epnum].regs;
         struct dma_channel      *dma;
+        struct musb_hw_ep       *hw_ep = &musb->endpoints[epnum];
+
+        if (hw_ep->is_shared_fifo)
+                musb_ep = &hw_ep->ep_in;
+        else
+                musb_ep = &hw_ep->ep_out;
 
         musb_ep_select(mbase, epnum);
 
@@ -1081,7 +1084,7 @@ struct free_record {
 /*
  * Context: controller locked, IRQs blocked.
  */
-static void musb_ep_restart(struct musb *musb, struct musb_request *req)
+void musb_ep_restart(struct musb *musb, struct musb_request *req)
 {
         DBG(3, "<== %s request %p len %u on hw_ep%d\n",
                 req->tx ? "TX/IN" : "RX/OUT",
diff --git a/drivers/usb/musb/musb_gadget.h b/drivers/usb/musb/musb_gadget.h
index c8b140325d82..572b1da7f2dc 100644
--- a/drivers/usb/musb/musb_gadget.h
+++ b/drivers/usb/musb/musb_gadget.h
@@ -105,4 +105,6 @@ extern void musb_gadget_cleanup(struct musb *);
 
 extern void musb_g_giveback(struct musb_ep *, struct usb_request *, int);
 
+extern void musb_ep_restart(struct musb *, struct musb_request *);
+
 #endif          /* __MUSB_GADGET_H */
diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c
index 59bef8f3a358..6dd03f4c5f49 100644
--- a/drivers/usb/musb/musb_gadget_ep0.c
+++ b/drivers/usb/musb/musb_gadget_ep0.c
@@ -261,6 +261,7 @@ __acquires(musb->lock)
                                         ctrlrequest->wIndex & 0x0f;
                                 struct musb_ep          *musb_ep;
                                 struct musb_hw_ep       *ep;
+                                struct musb_request     *request;
                                 void __iomem            *regs;
                                 int                     is_in;
                                 u16                     csr;
@@ -302,6 +303,14 @@ __acquires(musb->lock)
                                         musb_writew(regs, MUSB_RXCSR, csr);
                                 }
 
+                                /* Maybe start the first request in the queue */
+                                request = to_musb_request(
+                                                next_request(musb_ep));
+                                if (!musb_ep->busy && request) {
+                                        DBG(3, "restarting the request\n");
+                                        musb_ep_restart(musb, request);
+                                }
+
                                 /* select ep0 again */
                                 musb_ep_select(mbase, 0);
                                 } break;
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 877d20b1dff9..9e65c47cc98b 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -660,6 +660,12 @@ static bool musb_tx_dma_program(struct dma_controller *dma,
 
         qh->segsize = length;
 
+        /*
+         * Ensure the data reaches to main memory before starting
+         * DMA transfer
+         */
+        wmb();
+
         if (!dma->channel_program(channel, pkt_size, mode,
                         urb->transfer_dma + offset, length)) {
                 dma->channel_release(channel);
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 84f842331dfa..7ccc967831f0 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -3508,7 +3508,7 @@ static void fbcon_exit(void)
         softback_buf = 0UL;
 
         for (i = 0; i < FB_MAX; i++) {
-                int pending;
+                int pending = 0;
 
                 mapped = 0;
                 info = registered_fb[i];
@@ -3516,7 +3516,8 @@ static void fbcon_exit(void)
                 if (info == NULL)
                         continue;
 
-                pending = cancel_work_sync(&info->queue);
+                if (info->queue.func)
+                        pending = cancel_work_sync(&info->queue);
                 DPRINTK("fbcon: %s pending work\n", (pending ? "canceled" :
                         "no"));
 
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index 815f84b07933..70477c2e4b61 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -13,7 +13,7 @@
 #include <linux/platform_device.h>
 #include <linux/screen_info.h>
 #include <linux/dmi.h>
-
+#include <linux/pci.h>
 #include <video/vga.h>
 
 static struct fb_var_screeninfo efifb_defined __devinitdata = {
@@ -39,17 +39,31 @@ enum {
         M_I20,          /* 20-Inch iMac */
         M_I20_SR,       /* 20-Inch iMac (Santa Rosa) */
         M_I24,          /* 24-Inch iMac */
+        M_I24_8_1,      /* 24-Inch iMac, 8,1th gen */
+        M_I24_10_1,     /* 24-Inch iMac, 10,1th gen */
+        M_I27_11_1,     /* 27-Inch iMac, 11,1th gen */
         M_MINI,         /* Mac Mini */
+        M_MINI_3_1,     /* Mac Mini, 3,1th gen */
+        M_MINI_4_1,     /* Mac Mini, 4,1th gen */
         M_MB,           /* MacBook */
         M_MB_2,         /* MacBook, 2nd rev. */
         M_MB_3,         /* MacBook, 3rd rev. */
+        M_MB_5_1,       /* MacBook, 5th rev. */
+        M_MB_6_1,       /* MacBook, 6th rev. */
+        M_MB_7_1,       /* MacBook, 7th rev. */
         M_MB_SR,        /* MacBook, 2nd gen, (Santa Rosa) */
         M_MBA,          /* MacBook Air */
         M_MBP,          /* MacBook Pro */
         M_MBP_2,        /* MacBook Pro 2nd gen */
+        M_MBP_2_2,      /* MacBook Pro 2,2nd gen */
         M_MBP_SR,       /* MacBook Pro (Santa Rosa) */
         M_MBP_4,        /* MacBook Pro, 4th gen */
         M_MBP_5_1,    /* MacBook Pro, 5,1th gen */
+        M_MBP_5_2,      /* MacBook Pro, 5,2th gen */
+        M_MBP_5_3,      /* MacBook Pro, 5,3rd gen */
+        M_MBP_6_1,      /* MacBook Pro, 6,1th gen */
+        M_MBP_6_2,      /* MacBook Pro, 6,2th gen */
+        M_MBP_7_1,      /* MacBook Pro, 7,1th gen */
         M_UNKNOWN       /* placeholder */
 };
 
@@ -64,14 +78,28 @@ static struct efifb_dmi_info {
         [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050 }, /* guess */
         [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050 },
         [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200 }, /* guess */
+        [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200 },
+        [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080 },
+        [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440 },
         [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768 },
+        [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768 },
+        [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200 },
         [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800 },
+        [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800 },
+        [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800 },
+        [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800 },
         [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800 },
         [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900 },
         [M_MBP_2] = { "mbp2", 0, 0, 0, 0 }, /* placeholder */
+        [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900 },
         [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900 },
         [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200 },
         [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900 },
+        [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200 },
+        [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900 },
+        [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200 },
+        [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050 },
+        [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800 },
         [M_UNKNOWN] = { NULL, 0, 0, 0, 0 }
 };
 
@@ -92,7 +120,12 @@ static const struct dmi_system_id dmi_system_table[] __initconst = {
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB),
         /* At least one of these two will be right; maybe both? */
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB),
@@ -101,14 +134,23 @@ static const struct dmi_system_id dmi_system_table[] __initconst = {
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
+        EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1),
         {},
 };
 
@@ -116,7 +158,7 @@ static int set_system(const struct dmi_system_id *id)
 {
         struct efifb_dmi_info *info = id->driver_data;
         if (info->base == 0)
-                return -ENODEV;
+                return 0;
 
         printk(KERN_INFO "efifb: dmi detected %s - framebuffer at %p "
                          "(%dx%d, stride %d)\n", id->ident,
@@ -124,18 +166,55 @@ static int set_system(const struct dmi_system_id *id)
                          info->stride);
 
         /* Trust the bootloader over the DMI tables */
-        if (screen_info.lfb_base == 0)
+        if (screen_info.lfb_base == 0) {
+#if defined(CONFIG_PCI)
+                struct pci_dev *dev = NULL;
+                int found_bar = 0;
+#endif
                 screen_info.lfb_base = info->base;
-        if (screen_info.lfb_linelength == 0)
-                screen_info.lfb_linelength = info->stride;
-        if (screen_info.lfb_width == 0)
-                screen_info.lfb_width = info->width;
-        if (screen_info.lfb_height == 0)
-                screen_info.lfb_height = info->height;
-        if (screen_info.orig_video_isVGA == 0)
-                screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
 
-        return 0;
+#if defined(CONFIG_PCI)
+                /* make sure that the address in the table is actually on a
+                 * VGA device's PCI BAR */
+
+                for_each_pci_dev(dev) {
+                        int i;
+                        if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+                                continue;
+                        for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+                                resource_size_t start, end;
+
+                                start = pci_resource_start(dev, i);
+                                if (start == 0)
+                                        break;
+                                end = pci_resource_end(dev, i);
+                                if (screen_info.lfb_base >= start &&
+                                                screen_info.lfb_base < end) {
+                                        found_bar = 1;
+                                }
+                        }
+                }
+                if (!found_bar)
+                        screen_info.lfb_base = 0;
+#endif
+        }
+        if (screen_info.lfb_base) {
+                if (screen_info.lfb_linelength == 0)
+                        screen_info.lfb_linelength = info->stride;
+                if (screen_info.lfb_width == 0)
+                        screen_info.lfb_width = info->width;
+                if (screen_info.lfb_height == 0)
+                        screen_info.lfb_height = info->height;
+                if (screen_info.orig_video_isVGA == 0)
+                        screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
+        } else {
+                screen_info.lfb_linelength = 0;
+                screen_info.lfb_width = 0;
+                screen_info.lfb_height = 0;
+                screen_info.orig_video_isVGA = 0;
+                return 0;
+        }
+        return 1;
 }
 
 static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 559bf1727a2b..b52f8e4ef1fd 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -1701,6 +1701,9 @@ static int	sisfb_ioctl(struct fb_info *info, unsigned int cmd,
                 break;
 
            case FBIOGET_VBLANK:
+
+                memset(&sisvbblank, 0, sizeof(struct fb_vblank));
+
                 sisvbblank.count = 0;
                 sisvbblank.flags = sisfb_setupvbblankflags(ivideo, &sisvbblank.vcount, &sisvbblank.hcount);
 
diff --git a/fs/aio.c b/fs/aio.c
index 1320b2a05fb2..250b0a73c8a8 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -712,8 +712,16 @@ static ssize_t aio_run_iocb(struct kiocb *iocb)
          */
         ret = retry(iocb);
 
-        if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED)
+        if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED) {
+                /*
+                 * There's no easy way to restart the syscall since other AIO's
+                 * may be already running. Just fail this IO with EINTR.
+                 */
+                if (unlikely(ret == -ERESTARTSYS || ret == -ERESTARTNOINTR ||
+                             ret == -ERESTARTNOHAND || ret == -ERESTART_RESTARTBLOCK))
+                        ret = -EINTR;
                 aio_complete(iocb, ret, 0);
+        }
 out:
         spin_lock_irq(&ctx->ctx_lock);
 
diff --git a/fs/ceph/Kconfig b/fs/ceph/Kconfig
index bc87b9c1d27e..0fcd2640c23f 100644
--- a/fs/ceph/Kconfig
+++ b/fs/ceph/Kconfig
@@ -3,6 +3,7 @@ config CEPH_FS
         depends on INET && EXPERIMENTAL
         select LIBCRC32C
         select CRYPTO_AES
+        select CRYPTO
         help
           Choose Y or M here to include support for mounting the
           experimental Ceph distributed file system.  Ceph is an extremely
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 4cfce1ee31fa..efbc604001c8 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -411,8 +411,8 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
         if (i_size < page_off + len)
                 len = i_size - page_off;
 
-        dout("writepage %p page %p index %lu on %llu~%u\n",
-             inode, page, page->index, page_off, len);
+        dout("writepage %p page %p index %lu on %llu~%u snapc %p\n",
+             inode, page, page->index, page_off, len, snapc);
 
         writeback_stat = atomic_long_inc_return(&client->writeback_count);
         if (writeback_stat >
@@ -766,7 +766,8 @@ get_more_pages:
                         /* ok */
                         if (locked_pages == 0) {
                                 /* prepare async write request */
-                                offset = page->index << PAGE_CACHE_SHIFT;
+                                offset = (unsigned long long)page->index
+                                        << PAGE_CACHE_SHIFT;
                                 len = wsize;
                                 req = ceph_osdc_new_request(&client->osdc,
                                             &ci->i_layout,
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index a2069b6680ae..73c153092f72 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -814,7 +814,7 @@ int __ceph_caps_used(struct ceph_inode_info *ci)
                 used |= CEPH_CAP_PIN;
         if (ci->i_rd_ref)
                 used |= CEPH_CAP_FILE_RD;
-        if (ci->i_rdcache_ref || ci->i_rdcache_gen)
+        if (ci->i_rdcache_ref || ci->vfs_inode.i_data.nrpages)
                 used |= CEPH_CAP_FILE_CACHE;
         if (ci->i_wr_ref)
                 used |= CEPH_CAP_FILE_WR;
@@ -1195,10 +1195,14 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
  * asynchronously back to the MDS once sync writes complete and dirty
  * data is written out.
  *
+ * Unless @again is true, skip cap_snaps that were already sent to
+ * the MDS (i.e., during this session).
+ *
  * Called under i_lock.  Takes s_mutex as needed.
  */
 void __ceph_flush_snaps(struct ceph_inode_info *ci,
-                        struct ceph_mds_session **psession)
+                        struct ceph_mds_session **psession,
+                        int again)
                 __releases(ci->vfs_inode->i_lock)
                 __acquires(ci->vfs_inode->i_lock)
 {
@@ -1227,7 +1231,7 @@ retry:
                  * pages to be written out.
                  */
                 if (capsnap->dirty_pages || capsnap->writing)
-                        continue;
+                        break;
 
                 /*
                  * if cap writeback already occurred, we should have dropped
@@ -1240,6 +1244,13 @@ retry:
                         dout("no auth cap (migrating?), doing nothing\n");
                         goto out;
                 }
+
+                /* only flush each capsnap once */
+                if (!again && !list_empty(&capsnap->flushing_item)) {
+                        dout("already flushed %p, skipping\n", capsnap);
+                        continue;
+                }
+
                 mds = ci->i_auth_cap->session->s_mds;
                 mseq = ci->i_auth_cap->mseq;
 
@@ -1276,8 +1287,8 @@ retry:
                               &session->s_cap_snaps_flushing);
                 spin_unlock(&inode->i_lock);
 
-                dout("flush_snaps %p cap_snap %p follows %lld size %llu\n",
-                     inode, capsnap, next_follows, capsnap->size);
+                dout("flush_snaps %p cap_snap %p follows %lld tid %llu\n",
+                     inode, capsnap, capsnap->follows, capsnap->flush_tid);
                 send_cap_msg(session, ceph_vino(inode).ino, 0,
                              CEPH_CAP_OP_FLUSHSNAP, capsnap->issued, 0,
                              capsnap->dirty, 0, capsnap->flush_tid, 0, mseq,
@@ -1314,7 +1325,7 @@ static void ceph_flush_snaps(struct ceph_inode_info *ci)
         struct inode *inode = &ci->vfs_inode;
 
         spin_lock(&inode->i_lock);
-        __ceph_flush_snaps(ci, NULL);
+        __ceph_flush_snaps(ci, NULL, 0);
         spin_unlock(&inode->i_lock);
 }
 
@@ -1477,7 +1488,7 @@ void ceph_check_caps(struct ceph_inode_info *ci, int flags,
 
         /* flush snaps first time around only */
         if (!list_empty(&ci->i_cap_snaps))
-                __ceph_flush_snaps(ci, &session);
+                __ceph_flush_snaps(ci, &session, 0);
         goto retry_locked;
 retry:
         spin_lock(&inode->i_lock);
@@ -1894,7 +1905,7 @@ static void kick_flushing_capsnaps(struct ceph_mds_client *mdsc,
                 if (cap && cap->session == session) {
                         dout("kick_flushing_caps %p cap %p capsnap %p\n", inode,
                              cap, capsnap);
-                        __ceph_flush_snaps(ci, &session);
+                        __ceph_flush_snaps(ci, &session, 1);
                 } else {
                         pr_err("%p auth cap %p not mds%d ???\n", inode,
                                cap, session->s_mds);
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 6e4f43ff23ec..a1986eb52045 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1021,11 +1021,15 @@ out_touch:
 static void ceph_dentry_release(struct dentry *dentry)
 {
         struct ceph_dentry_info *di = ceph_dentry(dentry);
-        struct inode *parent_inode = dentry->d_parent->d_inode;
-        u64 snapid = ceph_snap(parent_inode);
+        struct inode *parent_inode = NULL;
+        u64 snapid = CEPH_NOSNAP;
 
+        if (!IS_ROOT(dentry)) {
+                parent_inode = dentry->d_parent->d_inode;
+                if (parent_inode)
+                        snapid = ceph_snap(parent_inode);
+        }
         dout("dentry_release %p parent %p\n", dentry, parent_inode);
-
         if (parent_inode && snapid != CEPH_SNAPDIR) {
                 struct ceph_inode_info *ci = ceph_inode(parent_inode);
 
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index e7cca414da03..62377ec37edf 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -845,7 +845,7 @@ static void ceph_set_dentry_offset(struct dentry *dn)
  * the caller) if we fail.
  */
 static struct dentry *splice_dentry(struct dentry *dn, struct inode *in,
-                                    bool *prehash)
+                                    bool *prehash, bool set_offset)
 {
         struct dentry *realdn;
 
@@ -877,7 +877,8 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in,
         }
         if ((!prehash || *prehash) && d_unhashed(dn))
                 d_rehash(dn);
-        ceph_set_dentry_offset(dn);
+        if (set_offset)
+                ceph_set_dentry_offset(dn);
 out:
         return dn;
 }
@@ -1062,7 +1063,7 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
                                 d_delete(dn);
                                 goto done;
                         }
-                        dn = splice_dentry(dn, in, &have_lease);
+                        dn = splice_dentry(dn, in, &have_lease, true);
                         if (IS_ERR(dn)) {
                                 err = PTR_ERR(dn);
                                 goto done;
@@ -1105,7 +1106,7 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
                         goto done;
                 }
                 dout(" linking snapped dir %p to dn %p\n", in, dn);
-                dn = splice_dentry(dn, in, NULL);
+                dn = splice_dentry(dn, in, NULL, true);
                 if (IS_ERR(dn)) {
                         err = PTR_ERR(dn);
                         goto done;
@@ -1237,7 +1238,7 @@ retry_lookup:
                                 err = PTR_ERR(in);
                                 goto out;
                         }
-                        dn = splice_dentry(dn, in, NULL);
+                        dn = splice_dentry(dn, in, NULL, false);
                         if (IS_ERR(dn))
                                 dn = NULL;
                 }
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index f091b1351786..fad95f8f2608 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2374,6 +2374,8 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
                                                 num_fcntl_locks,
                                                 num_flock_locks);
                 unlock_kernel();
+        } else {
+                err = ceph_pagelist_append(pagelist, &rec, reclen);
         }
 
 out_free:
diff --git a/fs/ceph/pagelist.c b/fs/ceph/pagelist.c
index b6859f47d364..46a368b6dce5 100644
--- a/fs/ceph/pagelist.c
+++ b/fs/ceph/pagelist.c
@@ -5,10 +5,18 @@
 
 #include "pagelist.h"
 
+static void ceph_pagelist_unmap_tail(struct ceph_pagelist *pl)
+{
+        struct page *page = list_entry(pl->head.prev, struct page,
+                                       lru);
+        kunmap(page);
+}
+
 int ceph_pagelist_release(struct ceph_pagelist *pl)
 {
         if (pl->mapped_tail)
-                kunmap(pl->mapped_tail);
+                ceph_pagelist_unmap_tail(pl);
+
         while (!list_empty(&pl->head)) {
                 struct page *page = list_first_entry(&pl->head, struct page,
                                                      lru);
@@ -26,7 +34,7 @@ static int ceph_pagelist_addpage(struct ceph_pagelist *pl)
         pl->room += PAGE_SIZE;
         list_add_tail(&page->lru, &pl->head);
         if (pl->mapped_tail)
-                kunmap(pl->mapped_tail);
+                ceph_pagelist_unmap_tail(pl);
         pl->mapped_tail = kmap(page);
         return 0;
 }
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index 4868b9dcac5a..190b6c4a6f2b 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -119,6 +119,7 @@ static struct ceph_snap_realm *ceph_create_snap_realm(
         INIT_LIST_HEAD(&realm->children);
         INIT_LIST_HEAD(&realm->child_item);
         INIT_LIST_HEAD(&realm->empty_item);
+        INIT_LIST_HEAD(&realm->dirty_item);
         INIT_LIST_HEAD(&realm->inodes_with_caps);
         spin_lock_init(&realm->inodes_with_caps_lock);
         __insert_snap_realm(&mdsc->snap_realms, realm);
@@ -467,7 +468,7 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci)
                 INIT_LIST_HEAD(&capsnap->ci_item);
                 INIT_LIST_HEAD(&capsnap->flushing_item);
 
-                capsnap->follows = snapc->seq - 1;
+                capsnap->follows = snapc->seq;
                 capsnap->issued = __ceph_caps_issued(ci, NULL);
                 capsnap->dirty = dirty;
 
@@ -604,6 +605,7 @@ int ceph_update_snap_trace(struct ceph_mds_client *mdsc,
         struct ceph_snap_realm *realm;
         int invalidate = 0;
         int err = -ENOMEM;
+        LIST_HEAD(dirty_realms);
 
         dout("update_snap_trace deletion=%d\n", deletion);
 more:
@@ -626,24 +628,6 @@ more:
                 }
         }
 
-        if (le64_to_cpu(ri->seq) > realm->seq) {
-                dout("update_snap_trace updating %llx %p %lld -> %lld\n",
-                     realm->ino, realm, realm->seq, le64_to_cpu(ri->seq));
-                /*
-                 * if the realm seq has changed, queue a cap_snap for every
-                 * inode with open caps.  we do this _before_ we update
-                 * the realm info so that we prepare for writeback under the
-                 * _previous_ snap context.
-                 *
-                 * ...unless it's a snap deletion!
-                 */
-                if (!deletion)
-                        queue_realm_cap_snaps(realm);
-        } else {
-                dout("update_snap_trace %llx %p seq %lld unchanged\n",
-                     realm->ino, realm, realm->seq);
-        }
-
         /* ensure the parent is correct */
         err = adjust_snap_realm_parent(mdsc, realm, le64_to_cpu(ri->parent));
         if (err < 0)
@@ -651,6 +635,8 @@ more:
         invalidate += err;
 
         if (le64_to_cpu(ri->seq) > realm->seq) {
+                dout("update_snap_trace updating %llx %p %lld -> %lld\n",
+                     realm->ino, realm, realm->seq, le64_to_cpu(ri->seq));
                 /* update realm parameters, snap lists */
                 realm->seq = le64_to_cpu(ri->seq);
                 realm->created = le64_to_cpu(ri->created);
@@ -668,9 +654,17 @@ more:
                 if (err < 0)
                         goto fail;
 
+                /* queue realm for cap_snap creation */
+                list_add(&realm->dirty_item, &dirty_realms);
+
                 invalidate = 1;
         } else if (!realm->cached_context) {
+                dout("update_snap_trace %llx %p seq %lld new\n",
+                     realm->ino, realm, realm->seq);
                 invalidate = 1;
+        } else {
+                dout("update_snap_trace %llx %p seq %lld unchanged\n",
+                     realm->ino, realm, realm->seq);
         }
 
         dout("done with %llx %p, invalidated=%d, %p %p\n", realm->ino,
@@ -683,6 +677,14 @@ more:
         if (invalidate)
                 rebuild_snap_realms(realm);
 
+        /*
+         * queue cap snaps _after_ we've built the new snap contexts,
+         * so that i_head_snapc can be set appropriately.
+         */
+        list_for_each_entry(realm, &dirty_realms, dirty_item) {
+                queue_realm_cap_snaps(realm);
+        }
+
         __cleanup_empty_realms(mdsc);
         return 0;
 
@@ -715,7 +717,7 @@ static void flush_snaps(struct ceph_mds_client *mdsc)
                 igrab(inode);
                 spin_unlock(&mdsc->snap_flush_lock);
                 spin_lock(&inode->i_lock);
-                __ceph_flush_snaps(ci, &session);
+                __ceph_flush_snaps(ci, &session, 0);
                 spin_unlock(&inode->i_lock);
                 iput(inode);
                 spin_lock(&mdsc->snap_flush_lock);
@@ -816,6 +818,7 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc,
                         };
                         struct inode *inode = ceph_find_inode(sb, vino);
                         struct ceph_inode_info *ci;
+                        struct ceph_snap_realm *oldrealm;
 
                         if (!inode)
                                 continue;
@@ -841,18 +844,19 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc,
                         dout(" will move %p to split realm %llx %p\n",
                              inode, realm->ino, realm);
                         /*
-                         * Remove the inode from the realm's inode
-                         * list, but don't add it to the new realm
-                         * yet.  We don't want the cap_snap to be
-                         * queued (again) by ceph_update_snap_trace()
-                         * below.  Queue it _now_, under the old context.
+                         * Move the inode to the new realm
                          */
                         spin_lock(&realm->inodes_with_caps_lock);
                         list_del_init(&ci->i_snap_realm_item);
+                        list_add(&ci->i_snap_realm_item,
+                                 &realm->inodes_with_caps);
+                        oldrealm = ci->i_snap_realm;
+                        ci->i_snap_realm = realm;
                         spin_unlock(&realm->inodes_with_caps_lock);
                         spin_unlock(&inode->i_lock);
 
-                        ceph_queue_cap_snap(ci);
+                        ceph_get_snap_realm(mdsc, realm);
+                        ceph_put_snap_realm(mdsc, oldrealm);
 
                         iput(inode);
                         continue;
@@ -880,43 +884,9 @@ skip_inode:
         ceph_update_snap_trace(mdsc, p, e,
                                op == CEPH_SNAP_OP_DESTROY);
 
-        if (op == CEPH_SNAP_OP_SPLIT) {
-                /*
-                 * ok, _now_ add the inodes into the new realm.
-                 */
-                for (i = 0; i < num_split_inos; i++) {
-                        struct ceph_vino vino = {
-                                .ino = le64_to_cpu(split_inos[i]),
-                                .snap = CEPH_NOSNAP,
-                        };
-                        struct inode *inode = ceph_find_inode(sb, vino);
-                        struct ceph_inode_info *ci;
-
-                        if (!inode)
-                                continue;
-                        ci = ceph_inode(inode);
-                        spin_lock(&inode->i_lock);
-                        if (list_empty(&ci->i_snap_realm_item)) {
-                                struct ceph_snap_realm *oldrealm =
-                                        ci->i_snap_realm;
-
-                                dout(" moving %p to split realm %llx %p\n",
-                                     inode, realm->ino, realm);
-                                spin_lock(&realm->inodes_with_caps_lock);
-                                list_add(&ci->i_snap_realm_item,
-                                         &realm->inodes_with_caps);
-                                ci->i_snap_realm = realm;
-                                spin_unlock(&realm->inodes_with_caps_lock);
-                                ceph_get_snap_realm(mdsc, realm);
-                                ceph_put_snap_realm(mdsc, oldrealm);
-                        }
-                        spin_unlock(&inode->i_lock);
-                        iput(inode);
-                }
-
+        if (op == CEPH_SNAP_OP_SPLIT)
                 /* we took a reference when we created the realm, above */
                 ceph_put_snap_realm(mdsc, realm);
-        }
 
         __cleanup_empty_realms(mdsc);
 
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index c33897ae5725..b87638e84c4b 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -690,6 +690,8 @@ struct ceph_snap_realm {
 
         struct list_head empty_item;     /* if i have ref==0 */
 
+        struct list_head dirty_item;     /* if realm needs new context */
+
         /* the current set of snaps for this realm */
         struct ceph_snap_context *cached_context;
 
@@ -826,7 +828,8 @@ extern void ceph_put_cap_refs(struct ceph_inode_info *ci, int had);
 extern void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
                                        struct ceph_snap_context *snapc);
 extern void __ceph_flush_snaps(struct ceph_inode_info *ci,
-                               struct ceph_mds_session **psession);
+                               struct ceph_mds_session **psession,
+                               int again);
 extern void ceph_check_caps(struct ceph_inode_info *ci, int flags,
                             struct ceph_mds_session *session);
 extern void ceph_check_delayed_caps(struct ceph_mds_client *mdsc);
diff --git a/fs/char_dev.c b/fs/char_dev.c
index f80a4f25123c..143d393881cb 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -40,7 +40,9 @@ struct backing_dev_info directly_mappable_cdev_bdi = {
 #endif
                 /* permit direct mmap, for read, write or exec */
                 BDI_CAP_MAP_DIRECT |
-                BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP),
+                BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP |
+                /* no writeback happens */
+                BDI_CAP_NO_ACCT_AND_WRITEBACK),
 };
 
 static struct kobj_map *cdev_map;
diff --git a/fs/compat.c b/fs/compat.c
index 718c7062aec1..0644a154672b 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1153,7 +1153,7 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
 {
         compat_ssize_t tot_len;
         struct iovec iovstack[UIO_FASTIOV];
-        struct iovec *iov;
+        struct iovec *iov = iovstack;
         ssize_t ret;
         io_fn_t fn;
         iov_fn_t fnv;
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 81e086d8aa57..5581122bd2c0 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -52,8 +52,6 @@ struct wb_writeback_work {
 #define CREATE_TRACE_POINTS
 #include <trace/events/writeback.h>
 
-#define inode_to_bdi(inode)     ((inode)->i_mapping->backing_dev_info)
-
 /*
  * We don't actually have pdflush, but this one is exported though /proc...
  */
@@ -71,6 +69,27 @@ int writeback_in_progress(struct backing_dev_info *bdi)
         return test_bit(BDI_writeback_running, &bdi->state);
 }
 
+static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
+{
+        struct super_block *sb = inode->i_sb;
+        struct backing_dev_info *bdi = inode->i_mapping->backing_dev_info;
+
+        /*
+         * For inodes on standard filesystems, we use superblock's bdi. For
+         * inodes on virtual filesystems, we want to use inode mapping's bdi
+         * because they can possibly point to something useful (think about
+         * block_dev filesystem).
+         */
+        if (sb->s_bdi && sb->s_bdi != &noop_backing_dev_info) {
+                /* Some device inodes could play dirty tricks. Catch them... */
+                WARN(bdi != sb->s_bdi && bdi_cap_writeback_dirty(bdi),
+                        "Dirtiable inode bdi %s != sb bdi %s\n",
+                        bdi->name, sb->s_bdi->name);
+                return sb->s_bdi;
+        }
+        return bdi;
+}
+
 static void bdi_queue_work(struct backing_dev_info *bdi,
                 struct wb_writeback_work *work)
 {
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index a76e0aa5cd3f..391915093fe1 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -209,7 +209,10 @@ static int ocfs2_acl_set_mode(struct inode *inode, struct buffer_head *di_bh,
         }
 
         inode->i_mode = new_mode;
+        inode->i_ctime = CURRENT_TIME;
         di->i_mode = cpu_to_le16(inode->i_mode);
+        di->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
+        di->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
 
         ocfs2_journal_dirty(handle, di_bh);
 
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 1361997cf205..cbe2f057cc28 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -977,7 +977,7 @@ static int o2net_tx_can_proceed(struct o2net_node *nn,
 int o2net_send_message_vec(u32 msg_type, u32 key, struct kvec *caller_vec,
                            size_t caller_veclen, u8 target_node, int *status)
 {
-        int ret;
+        int ret = 0;
         struct o2net_msg *msg = NULL;
         size_t veclen, caller_bytes = 0;
         struct kvec *vec = NULL;
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index f04ebcfffc4a..c49f6de0e7ab 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -3931,6 +3931,15 @@ static int ocfs2_dx_dir_rebalance(struct ocfs2_super *osb, struct inode *dir,
                 goto out_commit;
         }
 
+        cpos = split_hash;
+        ret = ocfs2_dx_dir_new_cluster(dir, &et, cpos, handle,
+                                       data_ac, meta_ac, new_dx_leaves,
+                                       num_dx_leaves);
+        if (ret) {
+                mlog_errno(ret);
+                goto out_commit;
+        }
+
         for (i = 0; i < num_dx_leaves; i++) {
                 ret = ocfs2_journal_access_dl(handle, INODE_CACHE(dir),
                                               orig_dx_leaves[i],
@@ -3939,15 +3948,14 @@ static int ocfs2_dx_dir_rebalance(struct ocfs2_super *osb, struct inode *dir,
                         mlog_errno(ret);
                         goto out_commit;
                 }
-        }
 
-        cpos = split_hash;
-        ret = ocfs2_dx_dir_new_cluster(dir, &et, cpos, handle,
-                                       data_ac, meta_ac, new_dx_leaves,
-                                       num_dx_leaves);
-        if (ret) {
-                mlog_errno(ret);
-                goto out_commit;
+                ret = ocfs2_journal_access_dl(handle, INODE_CACHE(dir),
+                                              new_dx_leaves[i],
+                                              OCFS2_JOURNAL_ACCESS_WRITE);
+                if (ret) {
+                        mlog_errno(ret);
+                        goto out_commit;
+                }
         }
 
         ocfs2_dx_dir_transfer_leaf(dir, split_hash, handle, tmp_dx_leaf,
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
index 4b6ae2c13b47..765298908f1d 100644
--- a/fs/ocfs2/dlm/dlmcommon.h
+++ b/fs/ocfs2/dlm/dlmcommon.h
@@ -1030,6 +1030,7 @@ int dlm_drop_lockres_ref(struct dlm_ctxt *dlm,
                          struct dlm_lock_resource *res);
 void dlm_clean_master_list(struct dlm_ctxt *dlm,
                            u8 dead_node);
+void dlm_force_free_mles(struct dlm_ctxt *dlm);
 int dlm_lock_basts_flushed(struct dlm_ctxt *dlm, struct dlm_lock *lock);
 int __dlm_lockres_has_locks(struct dlm_lock_resource *res);
 int __dlm_lockres_unused(struct dlm_lock_resource *res);
diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c
index 5efdd37dfe48..901ca52bf86b 100644
--- a/fs/ocfs2/dlm/dlmdebug.c
+++ b/fs/ocfs2/dlm/dlmdebug.c
@@ -636,8 +636,14 @@ static void *lockres_seq_start(struct seq_file *m, loff_t *pos)
         spin_lock(&dlm->track_lock);
         if (oldres)
                 track_list = &oldres->tracking;
-        else
+        else {
                 track_list = &dlm->tracking_list;
+                if (list_empty(track_list)) {
+                        dl = NULL;
+                        spin_unlock(&dlm->track_lock);
+                        goto bail;
+                }
+        }
 
         list_for_each_entry(res, track_list, tracking) {
                 if (&res->tracking == &dlm->tracking_list)
@@ -660,6 +666,7 @@ static void *lockres_seq_start(struct seq_file *m, loff_t *pos)
         } else
                 dl = NULL;
 
+bail:
         /* passed to seq_show */
         return dl;
 }
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 153abb5abef0..11a5c87fd7f7 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -693,6 +693,7 @@ void dlm_unregister_domain(struct dlm_ctxt *dlm)
 
                 dlm_mark_domain_leaving(dlm);
                 dlm_leave_domain(dlm);
+                dlm_force_free_mles(dlm);
                 dlm_complete_dlm_shutdown(dlm);
         }
         dlm_put(dlm);
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index ffb4c68dafa4..f564b0e5f80d 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -3433,3 +3433,43 @@ void dlm_lockres_release_ast(struct dlm_ctxt *dlm,
         wake_up(&res->wq);
         wake_up(&dlm->migration_wq);
 }
+
+void dlm_force_free_mles(struct dlm_ctxt *dlm)
+{
+        int i;
+        struct hlist_head *bucket;
+        struct dlm_master_list_entry *mle;
+        struct hlist_node *tmp, *list;
+
+        /*
+         * We notified all other nodes that we are exiting the domain and
+         * marked the dlm state to DLM_CTXT_LEAVING. If any mles are still
+         * around we force free them and wake any processes that are waiting
+         * on the mles
+         */
+        spin_lock(&dlm->spinlock);
+        spin_lock(&dlm->master_lock);
+
+        BUG_ON(dlm->dlm_state != DLM_CTXT_LEAVING);
+        BUG_ON((find_next_bit(dlm->domain_map, O2NM_MAX_NODES, 0) < O2NM_MAX_NODES));
+
+        for (i = 0; i < DLM_HASH_BUCKETS; i++) {
+                bucket = dlm_master_hash(dlm, i);
+                hlist_for_each_safe(list, tmp, bucket) {
+                        mle = hlist_entry(list, struct dlm_master_list_entry,
+                                          master_hash_node);
+                        if (mle->type != DLM_MLE_BLOCK) {
+                                mlog(ML_ERROR, "bad mle: %p\n", mle);
+                                dlm_print_one_mle(mle);
+                        }
+                        atomic_set(&mle->woken, 1);
+                        wake_up(&mle->wq);
+
+                        __dlm_unlink_mle(dlm, mle);
+                        __dlm_mle_detach_hb_events(dlm, mle);
+                        __dlm_put_mle(mle);
+                }
+        }
+        spin_unlock(&dlm->master_lock);
+        spin_unlock(&dlm->spinlock);
+}
diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h
index d1ce48e1b3d6..1d596d8c4a4a 100644
--- a/fs/ocfs2/dlmglue.h
+++ b/fs/ocfs2/dlmglue.h
@@ -84,6 +84,7 @@ enum {
         OI_LS_PARENT,
         OI_LS_RENAME1,
         OI_LS_RENAME2,
+        OI_LS_REFLINK_TARGET,
 };
 
 int ocfs2_dlm_init(struct ocfs2_super *osb);
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 33f1c9a8258d..fa31d05e41b7 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -235,18 +235,31 @@
 #define OCFS2_HAS_REFCOUNT_FL   (0x0010)
 
 /* Inode attributes, keep in sync with EXT2 */
-#define OCFS2_SECRM_FL          (0x00000001)    /* Secure deletion */
-#define OCFS2_UNRM_FL           (0x00000002)    /* Undelete */
-#define OCFS2_COMPR_FL          (0x00000004)    /* Compress file */
-#define OCFS2_SYNC_FL           (0x00000008)    /* Synchronous updates */
-#define OCFS2_IMMUTABLE_FL      (0x00000010)    /* Immutable file */
-#define OCFS2_APPEND_FL         (0x00000020)    /* writes to file may only append */
-#define OCFS2_NODUMP_FL         (0x00000040)    /* do not dump file */
-#define OCFS2_NOATIME_FL        (0x00000080)    /* do not update atime */
-#define OCFS2_DIRSYNC_FL        (0x00010000)    /* dirsync behaviour (directories only) */
-
-#define OCFS2_FL_VISIBLE        (0x000100FF)    /* User visible flags */
-#define OCFS2_FL_MODIFIABLE     (0x000100FF)    /* User modifiable flags */
+#define OCFS2_SECRM_FL                  FS_SECRM_FL     /* Secure deletion */
+#define OCFS2_UNRM_FL                   FS_UNRM_FL      /* Undelete */
+#define OCFS2_COMPR_FL                  FS_COMPR_FL     /* Compress file */
+#define OCFS2_SYNC_FL                   FS_SYNC_FL      /* Synchronous updates */
+#define OCFS2_IMMUTABLE_FL              FS_IMMUTABLE_FL /* Immutable file */
+#define OCFS2_APPEND_FL                 FS_APPEND_FL    /* writes to file may only append */
+#define OCFS2_NODUMP_FL                 FS_NODUMP_FL    /* do not dump file */
+#define OCFS2_NOATIME_FL                FS_NOATIME_FL   /* do not update atime */
+/* Reserved for compression usage... */
+#define OCFS2_DIRTY_FL                  FS_DIRTY_FL
+#define OCFS2_COMPRBLK_FL               FS_COMPRBLK_FL  /* One or more compressed clusters */
+#define OCFS2_NOCOMP_FL                 FS_NOCOMP_FL    /* Don't compress */
+#define OCFS2_ECOMPR_FL                 FS_ECOMPR_FL    /* Compression error */
+/* End compression flags --- maybe not all used */
+#define OCFS2_BTREE_FL                  FS_BTREE_FL     /* btree format dir */
+#define OCFS2_INDEX_FL                  FS_INDEX_FL     /* hash-indexed directory */
+#define OCFS2_IMAGIC_FL                 FS_IMAGIC_FL    /* AFS directory */
+#define OCFS2_JOURNAL_DATA_FL           FS_JOURNAL_DATA_FL /* Reserved for ext3 */
+#define OCFS2_NOTAIL_FL                 FS_NOTAIL_FL    /* file tail should not be merged */
+#define OCFS2_DIRSYNC_FL                FS_DIRSYNC_FL   /* dirsync behaviour (directories only) */
+#define OCFS2_TOPDIR_FL                 FS_TOPDIR_FL    /* Top of directory hierarchies*/
+#define OCFS2_RESERVED_FL               FS_RESERVED_FL  /* reserved for ext2 lib */
+
+#define OCFS2_FL_VISIBLE                FS_FL_USER_VISIBLE      /* User visible flags */
+#define OCFS2_FL_MODIFIABLE             FS_FL_USER_MODIFIABLE   /* User modifiable flags */
 
 /*
  * Extent record flags (e_node.leaf.flags)
diff --git a/fs/ocfs2/ocfs2_ioctl.h b/fs/ocfs2/ocfs2_ioctl.h
index 2d3420af1a83..5d241505690b 100644
--- a/fs/ocfs2/ocfs2_ioctl.h
+++ b/fs/ocfs2/ocfs2_ioctl.h
@@ -23,10 +23,10 @@
 /*
  * ioctl commands
  */
-#define OCFS2_IOC_GETFLAGS      _IOR('f', 1, long)
-#define OCFS2_IOC_SETFLAGS      _IOW('f', 2, long)
-#define OCFS2_IOC32_GETFLAGS    _IOR('f', 1, int)
-#define OCFS2_IOC32_SETFLAGS    _IOW('f', 2, int)
+#define OCFS2_IOC_GETFLAGS      FS_IOC_GETFLAGS
+#define OCFS2_IOC_SETFLAGS      FS_IOC_SETFLAGS
+#define OCFS2_IOC32_GETFLAGS    FS_IOC32_GETFLAGS
+#define OCFS2_IOC32_SETFLAGS    FS_IOC32_SETFLAGS
 
 /*
  * Space reservation / allocation / free ioctls and argument structure
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 0afeda83120f..efdd75607406 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -4201,8 +4201,9 @@ static int __ocfs2_reflink(struct dentry *old_dentry,
                 goto out;
         }
 
-        mutex_lock(&new_inode->i_mutex);
-        ret = ocfs2_inode_lock(new_inode, &new_bh, 1);
+        mutex_lock_nested(&new_inode->i_mutex, I_MUTEX_CHILD);
+        ret = ocfs2_inode_lock_nested(new_inode, &new_bh, 1,
+                                      OI_LS_REFLINK_TARGET);
         if (ret) {
                 mlog_errno(ret);
                 goto out_unlock;
diff --git a/fs/ocfs2/reservations.c b/fs/ocfs2/reservations.c
index d8b6e4259b80..3e78db361bc7 100644
--- a/fs/ocfs2/reservations.c
+++ b/fs/ocfs2/reservations.c
@@ -732,25 +732,23 @@ int ocfs2_resmap_resv_bits(struct ocfs2_reservation_map *resmap,
                            struct ocfs2_alloc_reservation *resv,
                            int *cstart, int *clen)
 {
-        unsigned int wanted = *clen;
-
         if (resv == NULL || ocfs2_resmap_disabled(resmap))
                 return -ENOSPC;
 
         spin_lock(&resv_lock);
 
-        /*
-         * We don't want to over-allocate for temporary
-         * windows. Otherwise, we run the risk of fragmenting the
-         * allocation space.
-         */
-        wanted = ocfs2_resv_window_bits(resmap, resv);
-        if ((resv->r_flags & OCFS2_RESV_FLAG_TMP) || wanted < *clen)
-                wanted = *clen;
-
         if (ocfs2_resv_empty(resv)) {
-                mlog(0, "empty reservation, find new window\n");
+                /*
+                 * We don't want to over-allocate for temporary
+                 * windows. Otherwise, we run the risk of fragmenting the
+                 * allocation space.
+                 */
+                unsigned int wanted = ocfs2_resv_window_bits(resmap, resv);
 
+                if ((resv->r_flags & OCFS2_RESV_FLAG_TMP) || wanted < *clen)
+                        wanted = *clen;
+
+                mlog(0, "empty reservation, find new window\n");
                 /*
                  * Try to get a window here. If it works, we must fall
                  * through and test the bitmap . This avoids some
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 8a286f54dca1..849c2f0e0a0e 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -357,7 +357,7 @@ out:
 static void ocfs2_bg_discontig_add_extent(struct ocfs2_super *osb,
                                           struct ocfs2_group_desc *bg,
                                           struct ocfs2_chain_list *cl,
-                                          u64 p_blkno, u32 clusters)
+                                          u64 p_blkno, unsigned int clusters)
 {
         struct ocfs2_extent_list *el = &bg->bg_list;
         struct ocfs2_extent_rec *rec;
@@ -369,7 +369,7 @@ static void ocfs2_bg_discontig_add_extent(struct ocfs2_super *osb,
         rec->e_blkno = cpu_to_le64(p_blkno);
         rec->e_cpos = cpu_to_le32(le16_to_cpu(bg->bg_bits) /
                                   le16_to_cpu(cl->cl_bpc));
-        rec->e_leaf_clusters = cpu_to_le32(clusters);
+        rec->e_leaf_clusters = cpu_to_le16(clusters);
         le16_add_cpu(&bg->bg_bits, clusters * le16_to_cpu(cl->cl_bpc));
         le16_add_cpu(&bg->bg_free_bits_count,
                      clusters * le16_to_cpu(cl->cl_bpc));
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index d03469f61801..06fa5e77c40e 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -1286,13 +1286,11 @@ int ocfs2_xattr_get_nolock(struct inode *inode,
         xis.inode_bh = xbs.inode_bh = di_bh;
         di = (struct ocfs2_dinode *)di_bh->b_data;
 
-        down_read(&oi->ip_xattr_sem);
         ret = ocfs2_xattr_ibody_get(inode, name_index, name, buffer,
                                     buffer_size, &xis);
         if (ret == -ENODATA && di->i_xattr_loc)
                 ret = ocfs2_xattr_block_get(inode, name_index, name, buffer,
                                             buffer_size, &xbs);
-        up_read(&oi->ip_xattr_sem);
 
         return ret;
 }
@@ -1316,8 +1314,10 @@ static int ocfs2_xattr_get(struct inode *inode,
                 mlog_errno(ret);
                 return ret;
         }
+        down_read(&OCFS2_I(inode)->ip_xattr_sem);
         ret = ocfs2_xattr_get_nolock(inode, di_bh, name_index,
                                      name, buffer, buffer_size);
+        up_read(&OCFS2_I(inode)->ip_xattr_sem);
 
         ocfs2_inode_unlock(inode, 0);
 
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 271afc48b9a5..1dbca4e8cc16 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -363,13 +363,13 @@ static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
                         mss->referenced += PAGE_SIZE;
                 mapcount = page_mapcount(page);
                 if (mapcount >= 2) {
-                        if (pte_dirty(ptent))
+                        if (pte_dirty(ptent) || PageDirty(page))
                                 mss->shared_dirty += PAGE_SIZE;
                         else
                                 mss->shared_clean += PAGE_SIZE;
                         mss->pss += (PAGE_SIZE << PSS_SHIFT) / mapcount;
                 } else {
-                        if (pte_dirty(ptent))
+                        if (pte_dirty(ptent) || PageDirty(page))
                                 mss->private_dirty += PAGE_SIZE;
                         else
                                 mss->private_clean += PAGE_SIZE;
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 91c817ff02c3..2367fb3f70bc 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -163,7 +163,7 @@ static ssize_t read_vmcore(struct file *file, char __user *buffer,
 
 static const struct file_operations proc_vmcore_operations = {
         .read           = read_vmcore,
-        .llseek         = generic_file_llseek,
+        .llseek         = default_llseek,
 };
 
 static struct vmcore* __init get_new_element(void)
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index ce29b8151198..ba8319ae5fcc 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -102,6 +102,9 @@ static inline u64 dma_get_mask(struct device *dev)
         return DMA_BIT_MASK(32);
 }
 
+#ifdef ARCH_HAS_DMA_SET_COHERENT_MASK
+int dma_set_coherent_mask(struct device *dev, u64 mask);
+#else
 static inline int dma_set_coherent_mask(struct device *dev, u64 mask)
 {
         if (!dma_supported(dev, mask))
@@ -109,6 +112,7 @@ static inline int dma_set_coherent_mask(struct device *dev, u64 mask)
         dev->coherent_dma_mask = mask;
         return 0;
 }
+#endif
 
 extern u64 dma_get_required_mask(struct device *dev);
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 76041b614758..63d069bd80b7 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1093,6 +1093,10 @@ struct file_lock {
 
 #include <linux/fcntl.h>
 
+/* temporary stubs for BKL removal */
+#define lock_flocks() lock_kernel()
+#define unlock_flocks() unlock_kernel()
+
 extern void send_sigio(struct fown_struct *fown, int fd, int band);
 
 #ifdef CONFIG_FILE_LOCKING
diff --git a/kernel/fork.c b/kernel/fork.c
index b7e9d60a675d..c445f8cc408d 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -356,10 +356,10 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
                 if (IS_ERR(pol))
                         goto fail_nomem_policy;
                 vma_set_policy(tmp, pol);
+                tmp->vm_mm = mm;
                 if (anon_vma_fork(tmp, mpnt))
                         goto fail_nomem_anon_vma_fork;
                 tmp->vm_flags &= ~VM_LOCKED;
-                tmp->vm_mm = mm;
                 tmp->vm_next = tmp->vm_prev = NULL;
                 file = tmp->vm_file;
                 if (file) {
diff --git a/kernel/hw_breakpoint.c b/kernel/hw_breakpoint.c
index d71a987fd2bf..c7c2aed9e2dc 100644
--- a/kernel/hw_breakpoint.c
+++ b/kernel/hw_breakpoint.c
@@ -433,7 +433,8 @@ register_user_hw_breakpoint(struct perf_event_attr *attr,
                             perf_overflow_handler_t triggered,
                             struct task_struct *tsk)
 {
-        return perf_event_create_kernel_counter(attr, -1, tsk->pid, triggered);
+        return perf_event_create_kernel_counter(attr, -1, task_pid_vnr(tsk),
+                                                triggered);
 }
 EXPORT_SYMBOL_GPL(register_user_hw_breakpoint);
 
diff --git a/kernel/sched.c b/kernel/sched.c
index ed09d4f2a69c..dc85ceb90832 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3513,9 +3513,9 @@ void task_times(struct task_struct *p, cputime_t *ut, cputime_t *st)
         rtime = nsecs_to_cputime(p->se.sum_exec_runtime);
 
         if (total) {
-                u64 temp;
+                u64 temp = rtime;
 
-                temp = (u64)(rtime * utime);
+                temp *= utime;
                 do_div(temp, total);
                 utime = (cputime_t)temp;
         } else
@@ -3546,9 +3546,9 @@ void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *st)
         rtime = nsecs_to_cputime(cputime.sum_exec_runtime);
 
         if (total) {
-                u64 temp;
+                u64 temp = rtime;
 
-                temp = (u64)(rtime * cputime.utime);
+                temp *= cputime.utime;
                 do_div(temp, total);
                 utime = (cputime_t)temp;
         } else
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index a171138a9402..db3f674ca49d 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -3630,7 +3630,7 @@ static inline int nohz_kick_needed(struct rq *rq, int cpu)
         if (time_before(now, nohz.next_balance))
                 return 0;
 
-        if (!rq->nr_running)
+        if (rq->idle_at_tick)
                 return 0;
 
         first_pick_cpu = atomic_read(&nohz.first_pick_cpu);
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index c2bf86f470ed..65d420499a61 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -30,6 +30,7 @@ EXPORT_SYMBOL_GPL(default_backing_dev_info);
 
 struct backing_dev_info noop_backing_dev_info = {
         .name           = "noop",
+        .capabilities   = BDI_CAP_NO_ACCT_AND_WRITEBACK,
 };
 EXPORT_SYMBOL_GPL(noop_backing_dev_info);
 
@@ -243,6 +244,7 @@ static int __init default_bdi_init(void)
         err = bdi_init(&default_backing_dev_info);
         if (!err)
                 bdi_register(&default_backing_dev_info, NULL, "default");
+        err = bdi_init(&noop_backing_dev_info);
 
         return err;
 }
diff --git a/mm/fremap.c b/mm/fremap.c
index 46f5dacf90a2..ec520c7b28df 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -125,7 +125,6 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
 {
         struct mm_struct *mm = current->mm;
         struct address_space *mapping;
-        unsigned long end = start + size;
         struct vm_area_struct *vma;
         int err = -EINVAL;
         int has_write_lock = 0;
@@ -142,6 +141,10 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
         if (start + size <= start)
                 return err;
 
+        /* Does pgoff wrap? */
+        if (pgoff + (size >> PAGE_SHIFT) < pgoff)
+                return err;
+
         /* Can we represent this offset inside this architecture's pte's? */
 #if PTE_FILE_MAX_BITS < BITS_PER_LONG
         if (pgoff + (size >> PAGE_SHIFT) >= (1UL << PTE_FILE_MAX_BITS))
@@ -168,7 +171,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
         if (!(vma->vm_flags & VM_CAN_NONLINEAR))
                 goto out;
 
-        if (end <= start || start < vma->vm_start || end > vma->vm_end)
+        if (start < vma->vm_start || start + size > vma->vm_end)
                 goto out;
 
         /* Must set VM_NONLINEAR before any pages are populated. */
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index cc5be788a39f..c03273807182 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2324,11 +2324,8 @@ retry_avoidcopy:
          * and just make the page writable */
         avoidcopy = (page_mapcount(old_page) == 1);
         if (avoidcopy) {
-                if (!trylock_page(old_page)) {
-                        if (PageAnon(old_page))
-                                page_move_anon_rmap(old_page, vma, address);
-                } else
-                        unlock_page(old_page);
+                if (PageAnon(old_page))
+                        page_move_anon_rmap(old_page, vma, address);
                 set_huge_ptep_writable(vma, address, ptep);
                 return 0;
         }
@@ -2404,7 +2401,7 @@ retry_avoidcopy:
                 set_huge_pte_at(mm, address, ptep,
                                 make_huge_pte(vma, new_page, 1));
                 page_remove_rmap(old_page);
-                hugepage_add_anon_rmap(new_page, vma, address);
+                hugepage_add_new_anon_rmap(new_page, vma, address);
                 /* Make the old page be freed below */
                 new_page = old_page;
                 mmu_notifier_invalidate_range_end(mm,
@@ -2631,10 +2628,16 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
                                                                 vma, address);
         }
 
-        if (!pagecache_page) {
-                page = pte_page(entry);
+        /*
+         * hugetlb_cow() requires page locks of pte_page(entry) and
+         * pagecache_page, so here we need take the former one
+         * when page != pagecache_page or !pagecache_page.
+         * Note that locking order is always pagecache_page -> page,
+         * so no worry about deadlock.
+         */
+        page = pte_page(entry);
+        if (page != pagecache_page)
                 lock_page(page);
-        }
 
         spin_lock(&mm->page_table_lock);
         /* Check for a racing update before calling hugetlb_cow */
@@ -2661,9 +2664,8 @@ out_page_table_lock:
         if (pagecache_page) {
                 unlock_page(pagecache_page);
                 put_page(pagecache_page);
-        } else {
-                unlock_page(page);
         }
+        unlock_page(page);
 
 out_mutex:
         mutex_unlock(&hugetlb_instantiation_mutex);
diff --git a/mm/mmap.c b/mm/mmap.c
index 6128dc8e5ede..00161a48a451 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2009,6 +2009,7 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
                         removed_exe_file_vma(mm);
                 fput(new->vm_file);
         }
+        unlink_anon_vmas(new);
  out_free_mpol:
         mpol_put(pol);
  out_free_vma:
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index fc81cb22869e..4029583a1024 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -121,8 +121,8 @@ struct task_struct *find_lock_task_mm(struct task_struct *p)
 }
 
 /* return true if the task is not adequate as candidate victim task. */
-static bool oom_unkillable_task(struct task_struct *p, struct mem_cgroup *mem,
-                           const nodemask_t *nodemask)
+static bool oom_unkillable_task(struct task_struct *p,
+                const struct mem_cgroup *mem, const nodemask_t *nodemask)
 {
         if (is_global_init(p))
                 return true;
@@ -208,8 +208,13 @@ unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *mem,
          */
         points += p->signal->oom_score_adj;
 
-        if (points < 0)
-                return 0;
+        /*
+         * Never return 0 for an eligible task that may be killed since it's
+         * possible that no single user task uses more than 0.1% of memory and
+         * no single admin tasks uses more than 3.0%.
+         */
+        if (points <= 0)
+                return 1;
         return (points < 1000) ? points : 1000;
 }
 
@@ -339,26 +344,24 @@ static struct task_struct *select_bad_process(unsigned int *ppoints,
 /**
  * dump_tasks - dump current memory state of all system tasks
  * @mem: current's memory controller, if constrained
+ * @nodemask: nodemask passed to page allocator for mempolicy ooms
  *
- * Dumps the current memory state of all system tasks, excluding kernel threads.
+ * Dumps the current memory state of all eligible tasks.  Tasks not in the same
+ * memcg, not in the same cpuset, or bound to a disjoint set of mempolicy nodes
+ * are not shown.
  * State information includes task's pid, uid, tgid, vm size, rss, cpu, oom_adj
  * value, oom_score_adj value, and name.
  *
- * If the actual is non-NULL, only tasks that are a member of the mem_cgroup are
- * shown.
- *
  * Call with tasklist_lock read-locked.
  */
-static void dump_tasks(const struct mem_cgroup *mem)
+static void dump_tasks(const struct mem_cgroup *mem, const nodemask_t *nodemask)
 {
         struct task_struct *p;
         struct task_struct *task;
 
         pr_info("[ pid ]   uid  tgid total_vm      rss cpu oom_adj oom_score_adj name\n");
         for_each_process(p) {
-                if (p->flags & PF_KTHREAD)
-                        continue;
-                if (mem && !task_in_mem_cgroup(p, mem))
+                if (oom_unkillable_task(p, mem, nodemask))
                         continue;
 
                 task = find_lock_task_mm(p);
@@ -381,7 +384,7 @@ static void dump_tasks(const struct mem_cgroup *mem)
 }
 
 static void dump_header(struct task_struct *p, gfp_t gfp_mask, int order,
-                                                        struct mem_cgroup *mem)
+                        struct mem_cgroup *mem, const nodemask_t *nodemask)
 {
         task_lock(current);
         pr_warning("%s invoked oom-killer: gfp_mask=0x%x, order=%d, "
@@ -394,7 +397,7 @@ static void dump_header(struct task_struct *p, gfp_t gfp_mask, int order,
         mem_cgroup_print_oom_info(mem, p);
         show_mem();
         if (sysctl_oom_dump_tasks)
-                dump_tasks(mem);
+                dump_tasks(mem, nodemask);
 }
 
 #define K(x) ((x) << (PAGE_SHIFT-10))
@@ -436,7 +439,7 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
         unsigned int victim_points = 0;
 
         if (printk_ratelimit())
-                dump_header(p, gfp_mask, order, mem);
+                dump_header(p, gfp_mask, order, mem, nodemask);
 
         /*
          * If the task is already exiting, don't alarm the sysadmin or kill
@@ -482,7 +485,7 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
  * Determines whether the kernel must panic because of the panic_on_oom sysctl.
  */
 static void check_panic_on_oom(enum oom_constraint constraint, gfp_t gfp_mask,
-                                int order)
+                                int order, const nodemask_t *nodemask)
 {
         if (likely(!sysctl_panic_on_oom))
                 return;
@@ -496,7 +499,7 @@ static void check_panic_on_oom(enum oom_constraint constraint, gfp_t gfp_mask,
                         return;
         }
         read_lock(&tasklist_lock);
-        dump_header(NULL, gfp_mask, order, NULL);
+        dump_header(NULL, gfp_mask, order, NULL, nodemask);
         read_unlock(&tasklist_lock);
         panic("Out of memory: %s panic_on_oom is enabled\n",
                 sysctl_panic_on_oom == 2 ? "compulsory" : "system-wide");
@@ -509,7 +512,7 @@ void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask)
         unsigned int points = 0;
         struct task_struct *p;
 
-        check_panic_on_oom(CONSTRAINT_MEMCG, gfp_mask, 0);
+        check_panic_on_oom(CONSTRAINT_MEMCG, gfp_mask, 0, NULL);
         limit = mem_cgroup_get_limit(mem) >> PAGE_SHIFT;
         read_lock(&tasklist_lock);
 retry:
@@ -641,6 +644,7 @@ static void clear_system_oom(void)
 void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
                 int order, nodemask_t *nodemask)
 {
+        const nodemask_t *mpol_mask;
         struct task_struct *p;
         unsigned long totalpages;
         unsigned long freed = 0;
@@ -670,7 +674,8 @@ void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
          */
         constraint = constrained_alloc(zonelist, gfp_mask, nodemask,
                                                 &totalpages);
-        check_panic_on_oom(constraint, gfp_mask, order);
+        mpol_mask = (constraint == CONSTRAINT_MEMORY_POLICY) ? nodemask : NULL;
+        check_panic_on_oom(constraint, gfp_mask, order, mpol_mask);
 
         read_lock(&tasklist_lock);
         if (sysctl_oom_kill_allocating_task &&
@@ -688,15 +693,13 @@ void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
         }
 
 retry:
-        p = select_bad_process(&points, totalpages, NULL,
-                        constraint == CONSTRAINT_MEMORY_POLICY ? nodemask :
-                                                                 NULL);
+        p = select_bad_process(&points, totalpages, NULL, mpol_mask);
         if (PTR_ERR(p) == -1UL)
                 goto out;
 
         /* Found nothing?!?! Either we hang forever, or we panic. */
         if (!p) {
-                dump_header(NULL, gfp_mask, order, NULL);
+                dump_header(NULL, gfp_mask, order, NULL, mpol_mask);
                 read_unlock(&tasklist_lock);
                 panic("Out of memory and no killable processes...\n");
         }
diff --git a/mm/percpu.c b/mm/percpu.c
index 58c572b18b07..c76ef3891e0d 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1401,9 +1401,9 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
 
                         if (pcpu_first_unit_cpu == NR_CPUS)
                                 pcpu_first_unit_cpu = cpu;
+                        pcpu_last_unit_cpu = cpu;
                 }
         }
-        pcpu_last_unit_cpu = cpu;
         pcpu_nr_units = unit;
 
         for_each_possible_cpu(cpu)
diff --git a/mm/rmap.c b/mm/rmap.c
index f6f0d2dda2ea..9d2ba01bd4f9 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1564,13 +1564,14 @@ static void __hugepage_set_anon_rmap(struct page *page,
         struct vm_area_struct *vma, unsigned long address, int exclusive)
 {
         struct anon_vma *anon_vma = vma->anon_vma;
+
         BUG_ON(!anon_vma);
-        if (!exclusive) {
-                struct anon_vma_chain *avc;
-                avc = list_entry(vma->anon_vma_chain.prev,
-                                 struct anon_vma_chain, same_vma);
-                anon_vma = avc->anon_vma;
-        }
+
+        if (PageAnon(page))
+                return;
+        if (!exclusive)
+                anon_vma = anon_vma->root;
+
         anon_vma = (void *) anon_vma + PAGE_MAPPING_ANON;
         page->mapping = (struct address_space *) anon_vma;
         page->index = linear_page_index(vma, address);
@@ -1581,6 +1582,8 @@ void hugepage_add_anon_rmap(struct page *page,
 {
         struct anon_vma *anon_vma = vma->anon_vma;
         int first;
+
+        BUG_ON(!PageLocked(page));
         BUG_ON(!anon_vma);
         BUG_ON(address < vma->vm_start || address >= vma->vm_end);
         first = atomic_inc_and_test(&page->_mapcount);
diff --git a/mm/vmscan.c b/mm/vmscan.c
index c391c320dbaf..c5dfabf25f11 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1804,12 +1804,11 @@ static void shrink_zone(int priority, struct zone *zone,
  * If a zone is deemed to be full of pinned pages then just give it a light
  * scan then give up on it.
  */
-static bool shrink_zones(int priority, struct zonelist *zonelist,
+static void shrink_zones(int priority, struct zonelist *zonelist,
                                         struct scan_control *sc)
 {
         struct zoneref *z;
         struct zone *zone;
-        bool all_unreclaimable = true;
 
         for_each_zone_zonelist_nodemask(zone, z, zonelist,
                                         gfp_zone(sc->gfp_mask), sc->nodemask) {
@@ -1827,8 +1826,38 @@ static bool shrink_zones(int priority, struct zonelist *zonelist,
                 }
 
                 shrink_zone(priority, zone, sc);
-                all_unreclaimable = false;
         }
+}
+
+static bool zone_reclaimable(struct zone *zone)
+{
+        return zone->pages_scanned < zone_reclaimable_pages(zone) * 6;
+}
+
+/*
+ * As hibernation is going on, kswapd is freezed so that it can't mark
+ * the zone into all_unreclaimable. It can't handle OOM during hibernation.
+ * So let's check zone's unreclaimable in direct reclaim as well as kswapd.
+ */
+static bool all_unreclaimable(struct zonelist *zonelist,
+                struct scan_control *sc)
+{
+        struct zoneref *z;
+        struct zone *zone;
+        bool all_unreclaimable = true;
+
+        for_each_zone_zonelist_nodemask(zone, z, zonelist,
+                        gfp_zone(sc->gfp_mask), sc->nodemask) {
+                if (!populated_zone(zone))
+                        continue;
+                if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL))
+                        continue;
+                if (zone_reclaimable(zone)) {
+                        all_unreclaimable = false;
+                        break;
+                }
+        }
+
         return all_unreclaimable;
 }
 
@@ -1852,7 +1881,6 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
                                         struct scan_control *sc)
 {
         int priority;
-        bool all_unreclaimable;
         unsigned long total_scanned = 0;
         struct reclaim_state *reclaim_state = current->reclaim_state;
         struct zoneref *z;
@@ -1869,7 +1897,7 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
                 sc->nr_scanned = 0;
                 if (!priority)
                         disable_swap_token();
-                all_unreclaimable = shrink_zones(priority, zonelist, sc);
+                shrink_zones(priority, zonelist, sc);
                 /*
                  * Don't shrink slabs when reclaiming memory from
                  * over limit cgroups
@@ -1931,7 +1959,7 @@ out:
                 return sc->nr_reclaimed;
 
         /* top priority shrink_zones still had more to do? don't OOM, then */
-        if (scanning_global_lru(sc) && !all_unreclaimable)
+        if (scanning_global_lru(sc) && !all_unreclaimable(zonelist, sc))
                 return 1;
 
         return 0;
@@ -2197,8 +2225,7 @@ loop_again:
                         total_scanned += sc.nr_scanned;
                         if (zone->all_unreclaimable)
                                 continue;
-                        if (nr_slab == 0 &&
-                            zone->pages_scanned >= (zone_reclaimable_pages(zone) * 6))
+                        if (nr_slab == 0 && !zone_reclaimable(zone))
                                 zone->all_unreclaimable = 1;
                         /*
                          * If we've done a decent amount of scanning and
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 66cf65b510b1..c1f1e3c62984 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -218,7 +218,6 @@ kvm_irqfd_assign(struct kvm *kvm, int fd, int gsi)
         events = file->f_op->poll(file, &irqfd->pt);
 
         list_add_tail(&irqfd->list, &kvm->irqfds.items);
-        spin_unlock_irq(&kvm->irqfds.lock);
 
         /*
          * Check if there was an event already pending on the eventfd
@@ -227,6 +226,8 @@ kvm_irqfd_assign(struct kvm *kvm, int fd, int gsi)
         if (events & POLLIN)
                 schedule_work(&irqfd->inject);
 
+        spin_unlock_irq(&kvm->irqfds.lock);
+
         /*
          * do not drop the file until the irqfd is fully initialized, otherwise
          * we might race against the POLLHUP
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index d4853a54771a..5186e728c53e 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1970,10 +1970,12 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
 
 asmlinkage void kvm_handle_fault_on_reboot(void)
 {
-        if (kvm_rebooting)
+        if (kvm_rebooting) {
                 /* spin while reset goes on */
+                local_irq_enable();
                 while (true)
                         ;
+        }
         /* Fault while not rebooting.  We want the trace. */
         BUG();
 }