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| author |  Jens Axboe <axboe@kernel.dk>
| 2020-10-26 14:32:27 -0600 |
|---|---|---|
| committer |  Thomas Gleixner <tglx@linutronix.de>
| 2020-10-29 09:37:36 +0100 |
| commit | 5c251e9dc0e127bac6fc5b8e6696363d2e35f515 (patch) | |
| tree | af85becb99286799a21b7a5642d85676ca46630b /kernel/events | |
| parent | Linux 5.9-rc1 (diff) | |
| download | linux-5c251e9dc0e127bac6fc5b8e6696363d2e35f515.tar.gz linux-5c251e9dc0e127bac6fc5b8e6696363d2e35f515.tar.bz2 linux-5c251e9dc0e127bac6fc5b8e6696363d2e35f515.zip | |
signal: Add task_sigpending() helper
This is in preparation for maintaining signal_pending() as the decider of
whether or not a schedule() loop should be broken, or continue sleeping.
This is different than the core signal use cases, which really need to know
whether an actual signal is pending or not. task_sigpending() returns
non-zero if TIF_SIGPENDING is set.
Only core kernel use cases should care about the distinction between
the two, make sure those use the task_sigpending() helper.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/r/20201026203230.386348-2-axboe@kernel.dk
Diffstat (limited to 'kernel/events')
| -rw-r--r-- | kernel/events/uprobes.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index 649fd53dc9ad..edd0c985a939 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -1973,7 +1973,7 @@ bool uprobe_deny_signal(void) WARN_ON_ONCE(utask->state != UTASK_SSTEP); - if (signal_pending(t)) { + if (task_sigpending(t)) { spin_lock_irq(&t->sighand->siglock); clear_tsk_thread_flag(t, TIF_SIGPENDING); spin_unlock_irq(&t->sighand->siglock); |