7 files changed, 28 insertions, 282 deletions

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 7437ccaada77..1587121730c5 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -119,8 +119,6 @@
                 *(__ksymtab_strings)                                    \
         }                                                               \
                                                                         \
-        EH_FRAME                                                        \
-                                                                        \
         /* Built-in module parameters. */                               \
         __param : AT(ADDR(__param) - LOAD_OFFSET) {                     \
                 VMLINUX_SYMBOL(__start___param) = .;                    \
@@ -160,26 +158,6 @@
                 *(.kprobes.text)                                        \
                 VMLINUX_SYMBOL(__kprobes_text_end) = .;
 
-#ifdef CONFIG_STACK_UNWIND
-#define EH_FRAME                                                        \
-                /* Unwind data binary search table */                   \
-                . = ALIGN(8);                                           \
-                .eh_frame_hdr : AT(ADDR(.eh_frame_hdr) - LOAD_OFFSET) { \
-                        VMLINUX_SYMBOL(__start_unwind_hdr) = .;         \
-                        *(.eh_frame_hdr)                                \
-                        VMLINUX_SYMBOL(__end_unwind_hdr) = .;           \
-                }                                                       \
-                /* Unwind data */                                       \
-                . = ALIGN(8);                                           \
-                .eh_frame : AT(ADDR(.eh_frame) - LOAD_OFFSET) {         \
-                        VMLINUX_SYMBOL(__start_unwind) = .;             \
-                        *(.eh_frame)                                    \
-                        VMLINUX_SYMBOL(__end_unwind) = .;               \
-                }
-#else
-#define EH_FRAME
-#endif
-
                 /* DWARF debug sections.
                 Symbols in the DWARF debugging sections are relative to
                 the beginning of the section so we begin them at 0.  */
diff --git a/include/asm-i386/unwind.h b/include/asm-i386/unwind.h
index aa2c931e30db..43c70c3de2f9 100644
--- a/include/asm-i386/unwind.h
+++ b/include/asm-i386/unwind.h
@@ -1,95 +1,6 @@
 #ifndef _ASM_I386_UNWIND_H
 #define _ASM_I386_UNWIND_H
 
-/*
- * Copyright (C) 2002-2006 Novell, Inc.
- *      Jan Beulich <jbeulich@novell.com>
- * This code is released under version 2 of the GNU GPL.
- */
-
-#ifdef CONFIG_STACK_UNWIND
-
-#include <linux/sched.h>
-#include <asm/fixmap.h>
-#include <asm/ptrace.h>
-#include <asm/uaccess.h>
-
-struct unwind_frame_info
-{
-        struct pt_regs regs;
-        struct task_struct *task;
-        unsigned call_frame:1;
-};
-
-#define UNW_PC(frame)        (frame)->regs.eip
-#define UNW_SP(frame)        (frame)->regs.esp
-#ifdef CONFIG_FRAME_POINTER
-#define UNW_FP(frame)        (frame)->regs.ebp
-#define FRAME_RETADDR_OFFSET 4
-#define FRAME_LINK_OFFSET    0
-#define STACK_BOTTOM(tsk)    STACK_LIMIT((tsk)->thread.esp0)
-#define STACK_TOP(tsk)       ((tsk)->thread.esp0)
-#else
-#define UNW_FP(frame) ((void)(frame), 0)
-#endif
-#define STACK_LIMIT(ptr)     (((ptr) - 1) & ~(THREAD_SIZE - 1))
-
-#define UNW_REGISTER_INFO \
-        PTREGS_INFO(eax), \
-        PTREGS_INFO(ecx), \
-        PTREGS_INFO(edx), \
-        PTREGS_INFO(ebx), \
-        PTREGS_INFO(esp), \
-        PTREGS_INFO(ebp), \
-        PTREGS_INFO(esi), \
-        PTREGS_INFO(edi), \
-        PTREGS_INFO(eip)
-
-#define UNW_DEFAULT_RA(raItem, dataAlign) \
-        ((raItem).where == Memory && \
-         !((raItem).value * (dataAlign) + 4))
-
-static inline void arch_unw_init_frame_info(struct unwind_frame_info *info,
-                                            /*const*/ struct pt_regs *regs)
-{
-        if (user_mode_vm(regs))
-                info->regs = *regs;
-        else {
-                memcpy(&info->regs, regs, offsetof(struct pt_regs, esp));
-                info->regs.esp = (unsigned long)&regs->esp;
-                info->regs.xss = __KERNEL_DS;
-        }
-}
-
-static inline void arch_unw_init_blocked(struct unwind_frame_info *info)
-{
-        memset(&info->regs, 0, sizeof(info->regs));
-        info->regs.eip = info->task->thread.eip;
-        info->regs.xcs = __KERNEL_CS;
-        __get_user(info->regs.ebp, (long *)info->task->thread.esp);
-        info->regs.esp = info->task->thread.esp;
-        info->regs.xss = __KERNEL_DS;
-        info->regs.xds = __USER_DS;
-        info->regs.xes = __USER_DS;
-        info->regs.xgs = __KERNEL_PDA;
-}
-
-extern asmlinkage int arch_unwind_init_running(struct unwind_frame_info *,
-                                               asmlinkage int (*callback)(struct unwind_frame_info *,
-                                                                          void *arg),
-                                               void *arg);
-
-static inline int arch_unw_user_mode(/*const*/ struct unwind_frame_info *info)
-{
-        return user_mode_vm(&info->regs)
-               || info->regs.eip < PAGE_OFFSET
-               || (info->regs.eip >= __fix_to_virt(FIX_VDSO)
-                   && info->regs.eip < __fix_to_virt(FIX_VDSO) + PAGE_SIZE)
-               || info->regs.esp < PAGE_OFFSET;
-}
-
-#else
-
 #define UNW_PC(frame) ((void)(frame), 0)
 #define UNW_SP(frame) ((void)(frame), 0)
 #define UNW_FP(frame) ((void)(frame), 0)
@@ -99,6 +10,4 @@ static inline int arch_unw_user_mode(const void *info)
         return 0;
 }
 
-#endif
-
 #endif /* _ASM_I386_UNWIND_H */
diff --git a/include/asm-s390/qdio.h b/include/asm-s390/qdio.h
index 7189c79bc673..127f72e77419 100644
--- a/include/asm-s390/qdio.h
+++ b/include/asm-s390/qdio.h
@@ -34,6 +34,7 @@
 #define QDIO_QETH_QFMT 0
 #define QDIO_ZFCP_QFMT 1
 #define QDIO_IQDIO_QFMT 2
+#define QDIO_IQDIO_QFMT_ASYNCH 3
 
 struct qdio_buffer_element{
         unsigned int flags;
diff --git a/include/asm-s390/reset.h b/include/asm-s390/reset.h
index 9b439cf67800..532e65a2aafc 100644
--- a/include/asm-s390/reset.h
+++ b/include/asm-s390/reset.h
@@ -19,5 +19,6 @@ extern void register_reset_call(struct reset_call *reset);
 extern void unregister_reset_call(struct reset_call *reset);
 extern void s390_reset_system(void);
 extern void (*s390_reset_mcck_handler)(void);
+extern void (*s390_reset_pgm_handler)(void);
 
 #endif /* _ASM_S390_RESET_H */
diff --git a/include/asm-x86_64/unwind.h b/include/asm-x86_64/unwind.h
index 2f6349e48717..02710f6a4560 100644
--- a/include/asm-x86_64/unwind.h
+++ b/include/asm-x86_64/unwind.h
@@ -1,100 +1,6 @@
 #ifndef _ASM_X86_64_UNWIND_H
 #define _ASM_X86_64_UNWIND_H
 
-/*
- * Copyright (C) 2002-2006 Novell, Inc.
- *      Jan Beulich <jbeulich@novell.com>
- * This code is released under version 2 of the GNU GPL.
- */
-
-#ifdef CONFIG_STACK_UNWIND
-
-#include <linux/sched.h>
-#include <asm/ptrace.h>
-#include <asm/uaccess.h>
-#include <asm/vsyscall.h>
-
-struct unwind_frame_info
-{
-        struct pt_regs regs;
-        struct task_struct *task;
-        unsigned call_frame:1;
-};
-
-#define UNW_PC(frame)        (frame)->regs.rip
-#define UNW_SP(frame)        (frame)->regs.rsp
-#ifdef CONFIG_FRAME_POINTER
-#define UNW_FP(frame)        (frame)->regs.rbp
-#define FRAME_RETADDR_OFFSET 8
-#define FRAME_LINK_OFFSET    0
-#define STACK_BOTTOM(tsk)    (((tsk)->thread.rsp0 - 1) & ~(THREAD_SIZE - 1))
-#define STACK_TOP(tsk)       ((tsk)->thread.rsp0)
-#endif
-/* Might need to account for the special exception and interrupt handling
-   stacks here, since normally
-        EXCEPTION_STACK_ORDER < THREAD_ORDER < IRQSTACK_ORDER,
-   but the construct is needed only for getting across the stack switch to
-   the interrupt stack - thus considering the IRQ stack itself is unnecessary,
-   and the overhead of comparing against all exception handling stacks seems
-   not desirable. */
-#define STACK_LIMIT(ptr)     (((ptr) - 1) & ~(THREAD_SIZE - 1))
-
-#define UNW_REGISTER_INFO \
-        PTREGS_INFO(rax), \
-        PTREGS_INFO(rdx), \
-        PTREGS_INFO(rcx), \
-        PTREGS_INFO(rbx), \
-        PTREGS_INFO(rsi), \
-        PTREGS_INFO(rdi), \
-        PTREGS_INFO(rbp), \
-        PTREGS_INFO(rsp), \
-        PTREGS_INFO(r8), \
-        PTREGS_INFO(r9), \
-        PTREGS_INFO(r10), \
-        PTREGS_INFO(r11), \
-        PTREGS_INFO(r12), \
-        PTREGS_INFO(r13), \
-        PTREGS_INFO(r14), \
-        PTREGS_INFO(r15), \
-        PTREGS_INFO(rip)
-
-#define UNW_DEFAULT_RA(raItem, dataAlign) \
-        ((raItem).where == Memory && \
-         !((raItem).value * (dataAlign) + 8))
-
-static inline void arch_unw_init_frame_info(struct unwind_frame_info *info,
-                                            /*const*/ struct pt_regs *regs)
-{
-        info->regs = *regs;
-}
-
-static inline void arch_unw_init_blocked(struct unwind_frame_info *info)
-{
-        extern const char thread_return[];
-
-        memset(&info->regs, 0, sizeof(info->regs));
-        info->regs.rip = (unsigned long)thread_return;
-        info->regs.cs = __KERNEL_CS;
-        __get_user(info->regs.rbp, (unsigned long *)info->task->thread.rsp);
-        info->regs.rsp = info->task->thread.rsp;
-        info->regs.ss = __KERNEL_DS;
-}
-
-extern int arch_unwind_init_running(struct unwind_frame_info *,
-                                    int (*callback)(struct unwind_frame_info *,
-                                                    void *arg),
-                                    void *arg);
-
-static inline int arch_unw_user_mode(const struct unwind_frame_info *info)
-{
-        return user_mode(&info->regs)
-               || (long)info->regs.rip >= 0
-               || (info->regs.rip >= VSYSCALL_START && info->regs.rip < VSYSCALL_END)
-               || (long)info->regs.rsp >= 0;
-}
-
-#else
-
 #define UNW_PC(frame) ((void)(frame), 0UL)
 #define UNW_SP(frame) ((void)(frame), 0UL)
 
@@ -103,6 +9,4 @@ static inline int arch_unw_user_mode(const void *info)
         return 0;
 }
 
-#endif
-
 #endif /* _ASM_X86_64_UNWIND_H */
diff --git a/include/linux/unwind.h b/include/linux/unwind.h
index 749928c161fb..7760860fa170 100644
--- a/include/linux/unwind.h
+++ b/include/linux/unwind.h
@@ -14,63 +14,6 @@
 
 struct module;
 
-#ifdef CONFIG_STACK_UNWIND
-
-#include <asm/unwind.h>
-
-#ifndef ARCH_UNWIND_SECTION_NAME
-#define ARCH_UNWIND_SECTION_NAME ".eh_frame"
-#endif
-
-/*
- * Initialize unwind support.
- */
-extern void unwind_init(void);
-extern void unwind_setup(void);
-
-#ifdef CONFIG_MODULES
-
-extern void *unwind_add_table(struct module *,
-                              const void *table_start,
-                              unsigned long table_size);
-
-extern void unwind_remove_table(void *handle, int init_only);
-
-#endif
-
-extern int unwind_init_frame_info(struct unwind_frame_info *,
-                                  struct task_struct *,
-                                  /*const*/ struct pt_regs *);
-
-/*
- * Prepare to unwind a blocked task.
- */
-extern int unwind_init_blocked(struct unwind_frame_info *,
-                               struct task_struct *);
-
-/*
- * Prepare to unwind the currently running thread.
- */
-extern int unwind_init_running(struct unwind_frame_info *,
-                               asmlinkage int (*callback)(struct unwind_frame_info *,
-                                                          void *arg),
-                               void *arg);
-
-/*
- * Unwind to previous to frame.  Returns 0 if successful, negative
- * number in case of an error.
- */
-extern int unwind(struct unwind_frame_info *);
-
-/*
- * Unwind until the return pointer is in user-land (or until an error
- * occurs).  Returns 0 if successful, negative number in case of
- * error.
- */
-extern int unwind_to_user(struct unwind_frame_info *);
-
-#else
-
 struct unwind_frame_info {};
 
 static inline void unwind_init(void) {}
@@ -85,12 +28,12 @@ static inline void *unwind_add_table(struct module *mod,
         return NULL;
 }
 
-#endif
-
 static inline void unwind_remove_table(void *handle, int init_only)
 {
 }
 
+#endif
+
 static inline int unwind_init_frame_info(struct unwind_frame_info *info,
                                          struct task_struct *tsk,
                                          const struct pt_regs *regs)
@@ -122,6 +65,4 @@ static inline int unwind_to_user(struct unwind_frame_info *info)
         return -ENOSYS;
 }
 
-#endif
-
 #endif /* _LINUX_UNWIND_H */
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index edef8d50b26b..2a7b38d87018 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -8,16 +8,21 @@
 #include <linux/timer.h>
 #include <linux/linkage.h>
 #include <linux/bitops.h>
+#include <asm/atomic.h>
 
 struct workqueue_struct;
 
 struct work_struct;
 typedef void (*work_func_t)(struct work_struct *work);
 
+/*
+ * The first word is the work queue pointer and the flags rolled into
+ * one
+ */
+#define work_data_bits(work) ((unsigned long *)(&(work)->data))
+
 struct work_struct {
-        /* the first word is the work queue pointer and the flags rolled into
-         * one */
-        unsigned long management;
+        atomic_long_t data;
 #define WORK_STRUCT_PENDING 0           /* T if work item pending execution */
 #define WORK_STRUCT_NOAUTOREL 1         /* F if work item automatically released on exec */
 #define WORK_STRUCT_FLAG_MASK (3UL)
@@ -26,6 +31,9 @@ struct work_struct {
         work_func_t func;
 };
 
+#define WORK_DATA_INIT(autorelease) \
+        ATOMIC_LONG_INIT((autorelease) << WORK_STRUCT_NOAUTOREL)
+
 struct delayed_work {
         struct work_struct work;
         struct timer_list timer;
@@ -36,13 +44,13 @@ struct execute_work {
 };
 
 #define __WORK_INITIALIZER(n, f) {                              \
-        .management = 0,                                        \
+        .data = WORK_DATA_INIT(0),                              \
         .entry  = { &(n).entry, &(n).entry },                   \
         .func = (f),                                            \
         }
 
 #define __WORK_INITIALIZER_NAR(n, f) {                          \
-        .management = (1 << WORK_STRUCT_NOAUTOREL),             \
+        .data = WORK_DATA_INIT(1),                              \
         .entry  = { &(n).entry, &(n).entry },                   \
         .func = (f),                                            \
         }
@@ -82,17 +90,21 @@ struct execute_work {
 
 /*
  * initialize all of a work item in one go
+ *
+ * NOTE! No point in using "atomic_long_set()": useing a direct
+ * assignment of the work data initializer allows the compiler
+ * to generate better code.
  */
 #define INIT_WORK(_work, _func)                                 \
         do {                                                    \
-                (_work)->management = 0;                        \
+                (_work)->data = (atomic_long_t) WORK_DATA_INIT(0);      \
                 INIT_LIST_HEAD(&(_work)->entry);                \
                 PREPARE_WORK((_work), (_func));                 \
         } while (0)
 
 #define INIT_WORK_NAR(_work, _func)                                     \
         do {                                                            \
-                (_work)->management = (1 << WORK_STRUCT_NOAUTOREL);     \
+                (_work)->data = (atomic_long_t) WORK_DATA_INIT(1);      \
                 INIT_LIST_HEAD(&(_work)->entry);                        \
                 PREPARE_WORK((_work), (_func));                         \
         } while (0)
@@ -114,15 +126,15 @@ struct execute_work {
  * @work: The work item in question
  */
 #define work_pending(work) \
-        test_bit(WORK_STRUCT_PENDING, &(work)->management)
+        test_bit(WORK_STRUCT_PENDING, work_data_bits(work))
 
 /**
  * delayed_work_pending - Find out whether a delayable work item is currently
  * pending
  * @work: The work item in question
  */
-#define delayed_work_pending(work) \
-        test_bit(WORK_STRUCT_PENDING, &(work)->work.management)
+#define delayed_work_pending(w) \
+        work_pending(&(w)->work)
 
 /**
  * work_release - Release a work item under execution
@@ -143,7 +155,7 @@ struct execute_work {
  * This should also be used to release a delayed work item.
  */
 #define work_release(work) \
-        clear_bit(WORK_STRUCT_PENDING, &(work)->management)
+        clear_bit(WORK_STRUCT_PENDING, work_data_bits(work))
 
 
 extern struct workqueue_struct *__create_workqueue(const char *name,
@@ -188,7 +200,7 @@ static inline int cancel_delayed_work(struct delayed_work *work)
 
         ret = del_timer_sync(&work->timer);
         if (ret)
-                clear_bit(WORK_STRUCT_PENDING, &work->work.management);
+                work_release(&work->work);
         return ret;
 }