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authorJens Axboe <axboe@kernel.dk>2020-10-09 16:00:49 -0600
committerJens Axboe <axboe@kernel.dk>2020-11-12 08:45:51 -0700
commit32d59773da38cd83e497a70eb9754d4bbae3aeae (patch)
tree78727cd6981784c670af5d7b5c247e755a3be3b5 /arch/arm/include/asm/thread_info.h
parentf4ea089e429e0d366cd1a34a2cbe3c7b13d98d75 (diff)
arm: add support for TIF_NOTIFY_SIGNAL
Wire up TIF_NOTIFY_SIGNAL handling for arm. Cc: linux-arm-kernel@lists.infradead.org Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'arch/arm/include/asm/thread_info.h')
-rw-r--r--arch/arm/include/asm/thread_info.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index 536b6b979f63..eb7ce2747eb0 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -126,6 +126,8 @@ extern int vfp_restore_user_hwstate(struct user_vfp *,
* thread information flags:
* TIF_USEDFPU - FPU was used by this task this quantum (SMP)
* TIF_POLLING_NRFLAG - true if poll_idle() is polling TIF_NEED_RESCHED
+ *
+ * Any bit in the range of 0..15 will cause do_work_pending() to be invoked.
*/
#define TIF_SIGPENDING 0 /* signal pending */
#define TIF_NEED_RESCHED 1 /* rescheduling necessary */
@@ -135,6 +137,7 @@ extern int vfp_restore_user_hwstate(struct user_vfp *,
#define TIF_SYSCALL_AUDIT 5 /* syscall auditing active */
#define TIF_SYSCALL_TRACEPOINT 6 /* syscall tracepoint instrumentation */
#define TIF_SECCOMP 7 /* seccomp syscall filtering active */
+#define TIF_NOTIFY_SIGNAL 8 /* signal notifications exist */
#define TIF_USING_IWMMXT 17
#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
@@ -148,6 +151,7 @@ extern int vfp_restore_user_hwstate(struct user_vfp *,
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
+#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
#define _TIF_USING_IWMMXT (1 << TIF_USING_IWMMXT)
/* Checks for any syscall work in entry-common.S */
@@ -158,7 +162,8 @@ extern int vfp_restore_user_hwstate(struct user_vfp *,
* Change these and you break ASM code in entry-common.S
*/
#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
- _TIF_NOTIFY_RESUME | _TIF_UPROBE)
+ _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
+ _TIF_NOTIFY_SIGNAL)
#endif /* __KERNEL__ */
#endif /* __ASM_ARM_THREAD_INFO_H */