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microblaze: add support for TIF_NOTIFY_SIGNAL 

Wire up TIF_NOTIFY_SIGNAL handling for microblaze.

Cc: Michal Simek <monstr@monstr.eu>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/a2b78afc-5f60-8590-9df5-17302e356552@kernel.dk
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Jens Axboe 2020-10-29 10:16:19 -06:00 committed by Michal Simek
parent e167a59c65
commit ed2124c0b9
2 changed files with 4 additions and 1 deletions
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2
arch/microblaze/include/asm/thread_info.h
View File

@ -107,6 +107,7 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
/* restore singlestep on return to user mode */
#define TIF_SINGLESTEP 4
#define TIF_NOTIFY_SIGNAL 5 /* signal notifications exist */
#define TIF_MEMDIE 6 /* is terminating due to OOM killer */
#define TIF_SYSCALL_AUDIT 9 /* syscall auditing active */
#define TIF_SECCOMP 10 /* secure computing */
@ -119,6 +120,7 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_SECCOMP (1 << TIF_SECCOMP)

3
arch/microblaze/kernel/signal.c
View File

@ -313,7 +313,8 @@ static void do_signal(struct pt_regs *regs, int in_syscall)
asmlinkage void do_notify_resume(struct pt_regs *regs, int in_syscall)
{
if (test_thread_flag(TIF_SIGPENDING))
if (test_thread_flag(TIF_SIGPENDING) ||
test_thread_flag(TIF_NOTIFY_SIGNAL))
do_signal(regs, in_syscall);
if (test_thread_flag(TIF_NOTIFY_RESUME))