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posix-timers: Cleanup SIG_IGN workaround leftovers

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Now that ignored posix timer signals are requeued and the timers are
rearmed on signal delivery the workaround to keep such timers alive and
self rearm them is not longer required.

Remove the relevant hacks and the not longer required return values from
the related functions. The alarm timer workarounds will be cleaned up in a
separate step.

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/20241105064214.187239060@linutronix.de
This commit is contained in:
Thomas Gleixner
2024-11-05 09:14:55 +01:00
parent df7a996b4d
commit 7a66f72b09
6 changed files with 24 additions and 125 deletions
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7
kernel/signal.c
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@@ -1970,7 +1970,7 @@ static inline struct task_struct *posixtimer_get_target(struct k_itimer *tmr)
return t;
}
int posixtimer_send_sigqueue(struct k_itimer *tmr)
void posixtimer_send_sigqueue(struct k_itimer *tmr)
{
struct sigqueue *q = &tmr->sigq;
int sig = q->info.si_signo;
@@ -1982,10 +1982,10 @@ int posixtimer_send_sigqueue(struct k_itimer *tmr)
t = posixtimer_get_target(tmr);
if (!t)
return -1;
return;
if (!likely(lock_task_sighand(t, &flags)))
return -1;
return;
/*
* Update @tmr::sigqueue_seq for posix timer signals with sighand
@@ -2054,7 +2054,6 @@ int posixtimer_send_sigqueue(struct k_itimer *tmr)
out:
trace_signal_generate(sig, &q->info, t, tmr->it_pid_type != PIDTYPE_PID, result);
unlock_task_sighand(t, &flags);
return 0;
}
static inline void posixtimer_sig_ignore(struct task_struct *tsk, struct sigqueue *q)