sh: add support for TIF_NOTIFY_SIGNAL

Wire up TIF_NOTIFY_SIGNAL handling for sh.

Cc: linux-sh@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h
index 243ea51..598d018 100644 (file)
--- a/arch/sh/include/asm/thread_info.h
+++ b/arch/sh/include/asm/thread_info.h
@@ -105,6 +105,7 @@ extern void init_thread_xstate(void);
 #define TIF_SYSCALL_TRACE      0       /* syscall trace active */
 #define TIF_SIGPENDING         1       /* signal pending */
 #define TIF_NEED_RESCHED       2       /* rescheduling necessary */
+#define TIF_NOTIFY_SIGNAL      3       /* signal notifications exist */
 #define TIF_SINGLESTEP         4       /* singlestepping active */
 #define TIF_SYSCALL_AUDIT      5       /* syscall auditing active */
 #define TIF_SECCOMP            6       /* secure computing */
@@ -116,6 +117,7 @@ extern void init_thread_xstate(void);
 #define _TIF_SYSCALL_TRACE     (1 << TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING                (1 << TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED      (1 << TIF_NEED_RESCHED)
+#define _TIF_NOTIFY_SIGNAL     (1 << TIF_NOTIFY_SIGNAL)
 #define _TIF_SINGLESTEP                (1 << TIF_SINGLESTEP)
 #define _TIF_SYSCALL_AUDIT     (1 << TIF_SYSCALL_AUDIT)
 #define _TIF_SECCOMP           (1 << TIF_SECCOMP)
@@ -132,7 +134,7 @@ extern void init_thread_xstate(void);
 #define _TIF_ALLWORK_MASK      (_TIF_SYSCALL_TRACE | _TIF_SIGPENDING      | \
                                 _TIF_NEED_RESCHED  | _TIF_SYSCALL_AUDIT   | \
                                 _TIF_SINGLESTEP    | _TIF_NOTIFY_RESUME   | \
-                                _TIF_SYSCALL_TRACEPOINT)
+                                _TIF_SYSCALL_TRACEPOINT | _TIF_NOTIFY_SIGNAL)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK         (_TIF_ALLWORK_MASK & ~(_TIF_SYSCALL_TRACE | \

diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
index 1add47f..dd30929 100644 (file)
--- a/arch/sh/kernel/signal_32.c
+++ b/arch/sh/kernel/signal_32.c
@@ -499,7 +499,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0,
                                 unsigned long thread_info_flags)
 {
        /* deal with pending signal delivery */
-       if (thread_info_flags & _TIF_SIGPENDING)
+       if (thread_info_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))
                do_signal(regs, save_r0);
 
        if (thread_info_flags & _TIF_NOTIFY_RESUME)