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csky: add support for TIF_NOTIFY_SIGNAL
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Wire up TIF_NOTIFY_SIGNAL handling for csky.

Cc: linux-csky@vger.kernel.org
Acked-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Jens Axboe committed Nov 9, 2020
1 parent e181c0a commit f3924d7
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Showing 2 changed files with 5 additions and 2 deletions.
5 changes: 4 additions & 1 deletion arch/csky/include/asm/thread_info.h
Original file line number Diff line number Diff line change
Expand Up @@ -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() */
Expand All @@ -75,14 +76,16 @@ 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)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#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)
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2 changes: 1 addition & 1 deletion arch/csky/kernel/signal.c
Original file line number Diff line number Diff line change
Expand Up @@ -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) {
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