signal: Refactor send_sigqueue()

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To handle posix timers which have their signal ignored via SIG_IGN properly
it is required to requeue a ignored signal for delivery when SIG_IGN is
lifted so the timer gets rearmed.

Split the required code out of send_sigqueue() so it can be reused in
context of sigaction().

While at it rename send_sigqueue() to posixtimer_send_sigqueue() so its
clear what this is about.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20241105064213.586453412@linutronix.de

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This commit is contained in:

Thomas Gleixner 2024-11-05 09:14:42 +01:00

parent ef1c5bcd6d

commit 0360ed14d9

4 changed files with 47 additions and 39 deletions

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1

include/linux/posix-timers.h

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1

include/linux/sched/signal.h

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82

kernel/signal.c

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2

kernel/time/posix-timers.c

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