Commit f3924d76 authored by Jens Axboe's avatar Jens Axboe
Browse files

csky: add support for TIF_NOTIFY_SIGNAL 



Wire up TIF_NOTIFY_SIGNAL handling for csky.

Cc: linux-csky@vger.kernel.org
Acked-by: default avatarGuo Ren <guoren@kernel.org>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent e181c0aa

arch/csky/include/asm/thread_info.h

+4 −1
Original line number Diff line number Diff line
@@ -64,6 +64,7 @@ static inline struct thread_info *current_thread_info(void) 
#define TIF_SYSCALL_TRACE	4	/* syscall trace active */

#define TIF_SYSCALL_TRACEPOINT	5       /* syscall tracepoint instrumentation */

#define TIF_SYSCALL_AUDIT	6	/* syscall auditing */

#define TIF_NOTIFY_SIGNAL	7	/* signal notifications exist */

#define TIF_POLLING_NRFLAG	16	/* poll_idle() is TIF_NEED_RESCHED */

#define TIF_MEMDIE		18      /* is terminating due to OOM killer */

#define TIF_RESTORE_SIGMASK	20	/* restore signal mask in do_signal() */
@@ -75,6 +76,7 @@ static inline struct thread_info *current_thread_info(void) 
#define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)

#define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)

#define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)

#define _TIF_NOTIFY_SIGNAL	(1 << TIF_NOTIFY_SIGNAL)

#define _TIF_UPROBE		(1 << TIF_UPROBE)

#define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)

#define _TIF_MEMDIE		(1 << TIF_MEMDIE)
@@ -82,7 +84,8 @@ static inline struct thread_info *current_thread_info(void) 
#define _TIF_SECCOMP		(1 << TIF_SECCOMP)



#define _TIF_WORK_MASK		(_TIF_NEED_RESCHED | _TIF_SIGPENDING | \

				 _TIF_NOTIFY_RESUME | _TIF_UPROBE)

				 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \

				 _TIF_NOTIFY_SIGNAL)



#define _TIF_SYSCALL_WORK	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \

				 _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)

arch/csky/kernel/signal.c

+1 −1
Original line number Diff line number Diff line
@@ -257,7 +257,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, 
		uprobe_notify_resume(regs);



	/* Handle 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) {