Commit f45c184b authored by Jens Axboe's avatar Jens Axboe
Browse files

mips: add support for TIF_NOTIFY_SIGNAL 



Wire up TIF_NOTIFY_SIGNAL handling for mips.

Cc: linux-mips@vger.kernel.org
Acked-By: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 900f0713

arch/mips/include/asm/thread_info.h

+3 −1
Original line number Diff line number Diff line
@@ -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 |		\

arch/mips/kernel/signal.c

+1 −1
Original line number Diff line number Diff line
@@ -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) {