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UPSTREAM: nios32: add support for TIF_NOTIFY_SIGNAL

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[ Upstream commit 42020064274c235d720d9c4b7d9a678b133e59cf ]

Wire up TIF_NOTIFY_SIGNAL handling for nios32.

Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Acked-by: Ley Foon Tan <ley.foon.tan@intel.com>
Change-Id: I11eed799c048247128e1acfb241f97cc3703d5b2
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit cf3c648673)
Bug: 268174392
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Jens Axboe
2020-10-09 15:21:21 -06:00
committed by Greg Kroah-Hartman
parent c5825095c4
commit 470c17bd71
2 changed files with 4 additions and 1 deletions
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2
arch/nios2/include/asm/thread_info.h
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@@ -86,6 +86,7 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_MEMDIE 4 /* is terminating due to OOM killer */ #define TIF_MEMDIE 4 /* is terminating due to OOM killer */
#define TIF_SECCOMP 5 /* secure computing */ #define TIF_SECCOMP 5 /* secure computing */
#define TIF_SYSCALL_AUDIT 6 /* syscall auditing active */ #define TIF_SYSCALL_AUDIT 6 /* syscall auditing active */
#define TIF_NOTIFY_SIGNAL 7 /* signal notifications exist */
#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */ #define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling #define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling
@@ -97,6 +98,7 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_SECCOMP (1 << TIF_SECCOMP) #define _TIF_SECCOMP (1 << TIF_SECCOMP)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) #define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)

3
arch/nios2/kernel/signal.c
View File

@@ -309,7 +309,8 @@ asmlinkage int do_notify_resume(struct pt_regs *regs)
if (!user_mode(regs)) if (!user_mode(regs))
return 0; return 0;
if (test_thread_flag(TIF_SIGPENDING)) { if (test_thread_flag(TIF_SIGPENDING) ||
test_thread_flag(TIF_NOTIFY_SIGNAL)) {
int restart = do_signal(regs); int restart = do_signal(regs);
if (unlikely(restart)) { if (unlikely(restart)) {