mips: add support for TIF_NOTIFY_SIGNAL

Wire up TIF_NOTIFY_SIGNAL handling for mips.

Cc: linux-mips@vger.kernel.org
Acked-By: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index ee26f9a..e2c352d 100644 (file)
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -115,6 +115,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_SECCOMP            4       /* secure computing */
 #define TIF_NOTIFY_RESUME      5       /* callback before returning to user */
 #define TIF_UPROBE             6       /* breakpointed or singlestepping */
+#define TIF_NOTIFY_SIGNAL      7       /* signal notifications exist */
 #define TIF_RESTORE_SIGMASK    9       /* restore signal mask in do_signal() */
 #define TIF_USEDFPU            16      /* FPU was used by this task this quantum (SMP) */
 #define TIF_MEMDIE             18      /* is terminating due to OOM killer */
@@ -139,6 +140,7 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_SECCOMP           (1<<TIF_SECCOMP)
 #define _TIF_NOTIFY_RESUME     (1<<TIF_NOTIFY_RESUME)
 #define _TIF_UPROBE            (1<<TIF_UPROBE)
+#define _TIF_NOTIFY_SIGNAL     (1<<TIF_NOTIFY_SIGNAL)
 #define _TIF_USEDFPU           (1<<TIF_USEDFPU)
 #define _TIF_NOHZ              (1<<TIF_NOHZ)
 #define _TIF_FIXADE            (1<<TIF_FIXADE)
@@ -164,7 +166,7 @@ static inline struct thread_info *current_thread_info(void)
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK         \
        (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_NOTIFY_RESUME |     \
-        _TIF_UPROBE)
+        _TIF_UPROBE | _TIF_NOTIFY_SIGNAL)
 /* work to do on any return to u-space */
 #define _TIF_ALLWORK_MASK      (_TIF_NOHZ | _TIF_WORK_MASK |           \
                                 _TIF_WORK_SYSCALL_EXIT |               \

diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 50d0515..f1e9851 100644 (file)
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -903,7 +903,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused,
                uprobe_notify_resume(regs);
 
        /* deal with pending signal delivery */
-       if (thread_info_flags & _TIF_SIGPENDING)
+       if (thread_info_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))
                do_signal(regs);
 
        if (thread_info_flags & _TIF_NOTIFY_RESUME) {