Merge branch 'x86-percpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-2.6.git] / arch / x86 / include / asm / thread_info.h

diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index df9d5f78385e442ae8c92b8556928e86c270021c..d27d0a2fec4c227540fe4042ea823853fd82a8d3 100644 (file)
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -49,7 +49,7 @@ struct thread_info {
        .exec_domain    = &default_exec_domain, \
        .flags          = 0,                    \
        .cpu            = 0,                    \
-       .preempt_count  = 1,                    \
+       .preempt_count  = INIT_PREEMPT_COUNT,   \
        .addr_limit     = KERNEL_DS,            \
        .restart_block = {                      \
                .fn = do_no_restart_syscall,    \
@@ -94,6 +94,8 @@ struct thread_info {
 #define TIF_FORCED_TF          24      /* true if TF in eflags artificially */
 #define TIF_DEBUGCTLMSR                25      /* uses thread_struct.debugctlmsr */
 #define TIF_DS_AREA_MSR                26      /* uses thread_struct.ds_area_msr */
+#define TIF_LAZY_MMU_UPDATES   27      /* task is updating the mmu lazily */
+#define TIF_SYSCALL_TRACEPOINT 28      /* syscall tracepoint instrumentation */
 
 #define _TIF_SYSCALL_TRACE     (1 << TIF_SYSCALL_TRACE)
 #define _TIF_NOTIFY_RESUME     (1 << TIF_NOTIFY_RESUME)
@@ -115,15 +117,18 @@ struct thread_info {
 #define _TIF_FORCED_TF         (1 << TIF_FORCED_TF)
 #define _TIF_DEBUGCTLMSR       (1 << TIF_DEBUGCTLMSR)
 #define _TIF_DS_AREA_MSR       (1 << TIF_DS_AREA_MSR)
+#define _TIF_LAZY_MMU_UPDATES  (1 << TIF_LAZY_MMU_UPDATES)
+#define _TIF_SYSCALL_TRACEPOINT        (1 << TIF_SYSCALL_TRACEPOINT)
 
 /* work to do in syscall_trace_enter() */
 #define _TIF_WORK_SYSCALL_ENTRY        \
-       (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | \
-        _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | _TIF_SINGLESTEP)
+       (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT |   \
+        _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT)
 
 /* work to do in syscall_trace_leave() */
 #define _TIF_WORK_SYSCALL_EXIT \
-       (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP)
+       (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP |    \
+        _TIF_SYSCALL_TRACEPOINT)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK                                                 \
@@ -132,7 +137,8 @@ struct thread_info {
           _TIF_SINGLESTEP|_TIF_SECCOMP|_TIF_SYSCALL_EMU))
 
 /* work to do on any return to user space */
-#define _TIF_ALLWORK_MASK (0x0000FFFF & ~_TIF_SECCOMP)
+#define _TIF_ALLWORK_MASK                                              \
+       ((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT)
 
 /* Only used for 64 bit */
 #define _TIF_DO_NOTIFY_MASK                                            \
@@ -149,9 +155,9 @@ struct thread_info {
 
 /* thread information allocation */
 #ifdef CONFIG_DEBUG_STACK_USAGE
-#define THREAD_FLAGS (GFP_KERNEL | __GFP_ZERO)
+#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
 #else
-#define THREAD_FLAGS GFP_KERNEL
+#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK)
 #endif
 
 #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
@@ -208,7 +214,7 @@ DECLARE_PER_CPU(unsigned long, kernel_stack);
 static inline struct thread_info *current_thread_info(void)
 {
        struct thread_info *ti;
-       ti = (void *)(percpu_read(kernel_stack) +
+       ti = (void *)(percpu_read_stable(kernel_stack) +
                      KERNEL_STACK_OFFSET - THREAD_SIZE);
        return ti;
 }