1 files changed, 21 insertions, 15 deletions

diff --git a/include/asm-powerpc/thread_info.h b/include/asm-powerpc/thread_info.h
index d030f5ce39ad..9665a26a253a 100644
--- a/include/asm-powerpc/thread_info.h
+++ b/include/asm-powerpc/thread_info.h
@@ -66,20 +66,12 @@ struct thread_info {
 
 #if THREAD_SHIFT >= PAGE_SHIFT
 
-#define THREAD_ORDER    (THREAD_SHIFT - PAGE_SHIFT)
-
-#ifdef CONFIG_DEBUG_STACK_USAGE
-#define alloc_thread_info(tsk)  \
-        ((struct thread_info *)__get_free_pages(GFP_KERNEL | \
-                __GFP_ZERO, THREAD_ORDER))
-#else
-#define alloc_thread_info(tsk)  \
-        ((struct thread_info *)__get_free_pages(GFP_KERNEL, THREAD_ORDER))
-#endif
-#define free_thread_info(ti)    free_pages((unsigned long)ti, THREAD_ORDER)
+#define THREAD_SIZE_ORDER       (THREAD_SHIFT - PAGE_SHIFT)
 
 #else /* THREAD_SHIFT < PAGE_SHIFT */
 
+#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
+
 extern struct thread_info *alloc_thread_info(struct task_struct *tsk);
 extern void free_thread_info(struct thread_info *ti);
 
@@ -116,7 +108,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_SECCOMP             10      /* secure computing */
 #define TIF_RESTOREALL          11      /* Restore all regs (implies NOERROR) */
 #define TIF_NOERROR             12      /* Force successful syscall return */
-#define TIF_RESTORE_SIGMASK     13      /* Restore signal mask in do_signal */
+#define TIF_NOTIFY_RESUME       13      /* callback before returning to user */
 #define TIF_FREEZE              14      /* Freezing for suspend */
 #define TIF_RUNLATCH            15      /* Is the runlatch enabled? */
 #define TIF_ABI_PENDING         16      /* 32/64 bit switch needed */
@@ -134,21 +126,35 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_SECCOMP            (1<<TIF_SECCOMP)
 #define _TIF_RESTOREALL         (1<<TIF_RESTOREALL)
 #define _TIF_NOERROR            (1<<TIF_NOERROR)
-#define _TIF_RESTORE_SIGMASK    (1<<TIF_RESTORE_SIGMASK)
+#define _TIF_NOTIFY_RESUME      (1<<TIF_NOTIFY_RESUME)
 #define _TIF_FREEZE             (1<<TIF_FREEZE)
 #define _TIF_RUNLATCH           (1<<TIF_RUNLATCH)
 #define _TIF_ABI_PENDING        (1<<TIF_ABI_PENDING)
 #define _TIF_SYSCALL_T_OR_A     (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP)
 
-#define _TIF_USER_WORK_MASK     ( _TIF_SIGPENDING | \
-                                 _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
+#define _TIF_USER_WORK_MASK     (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
+                                 _TIF_NOTIFY_RESUME)
 #define _TIF_PERSYSCALL_MASK    (_TIF_RESTOREALL|_TIF_NOERROR)
 
 /* Bits in local_flags */
 /* Don't move TLF_NAPPING without adjusting the code in entry_32.S */
 #define TLF_NAPPING             0       /* idle thread enabled NAP mode */
+#define TLF_SLEEPING            1       /* suspend code enabled SLEEP mode */
+#define TLF_RESTORE_SIGMASK     2       /* Restore signal mask in do_signal */
 
 #define _TLF_NAPPING            (1 << TLF_NAPPING)
+#define _TLF_SLEEPING           (1 << TLF_SLEEPING)
+#define _TLF_RESTORE_SIGMASK    (1 << TLF_RESTORE_SIGMASK)
+
+#ifndef __ASSEMBLY__
+#define HAVE_SET_RESTORE_SIGMASK        1
+static inline void set_restore_sigmask(void)
+{
+        struct thread_info *ti = current_thread_info();
+        ti->local_flags |= _TLF_RESTORE_SIGMASK;
+        set_bit(TIF_SIGPENDING, &ti->flags);
+}
+#endif  /* !__ASSEMBLY__ */
 
 #endif /* __KERNEL__ */