[PATCH] TIF_RESTORE_SIGMASK support for arch/powerpc

Implement the TIF_RESTORE_SIGMASK flag in the new arch/powerpc kernel, for
both 32-bit and 64-bit system call paths.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/include/asm-powerpc/thread_info.h b/include/asm-powerpc/thread_info.h
index 7e09d7cda933..67cdaf3ae9fc 100644
--- a/include/asm-powerpc/thread_info.h
+++ b/include/asm-powerpc/thread_info.h
@@ -122,6 +122,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_RESTOREALL          12      /* Restore all regs (implies NOERROR) */
 #define TIF_SAVE_NVGPRS         13      /* Save r14-r31 in signal frame */
 #define TIF_NOERROR             14      /* Force successful syscall return */
+#define TIF_RESTORE_SIGMASK     15      /* Restore signal mask in do_signal */
 
 /* as above, but as bit values */
 #define _TIF_SYSCALL_TRACE      (1<<TIF_SYSCALL_TRACE)
@@ -138,10 +139,12 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_RESTOREALL         (1<<TIF_RESTOREALL)
 #define _TIF_SAVE_NVGPRS        (1<<TIF_SAVE_NVGPRS)
 #define _TIF_NOERROR            (1<<TIF_NOERROR)
+#define _TIF_RESTORE_SIGMASK    (1<<TIF_RESTORE_SIGMASK)
 #define _TIF_SYSCALL_T_OR_A     (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP)
 
 #define _TIF_USER_WORK_MASK     (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | \
-                                 _TIF_NEED_RESCHED | _TIF_RESTOREALL)
+                                 _TIF_NEED_RESCHED | _TIF_RESTOREALL | \
+                                 _TIF_RESTORE_SIGMASK)
 #define _TIF_PERSYSCALL_MASK    (_TIF_RESTOREALL|_TIF_NOERROR|_TIF_SAVE_NVGPRS)
 
 #endif /* __KERNEL__ */