diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2024-11-05 09:14:39 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-11-07 02:14:44 +0100 |
| commit | 54f1dd642fd088ba969206f09e7afffad7d9db2c (patch) | |
| tree | 1a46d30300b9d6694363af093dd26893c6a5f54d /include/linux/posix-timers.h | |
| parent | 5cac427f7971b0619ebbfc131ef81fcf229c3c01 (diff) | |
signal: Provide posixtimer_sigqueue_init()
To cure the SIG_IGN handling for posix interval timers, the preallocated
sigqueue needs to be embedded into struct k_itimer to prevent life time
races of all sorts.
Provide a new function to initialize the embedded sigqueue to prepare for
that.
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/20241105064213.450427515@linutronix.de
Diffstat (limited to 'include/linux/posix-timers.h')
| -rw-r--r-- | include/linux/posix-timers.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h index 9740fd0c2933..200098d27cc0 100644 --- a/include/linux/posix-timers.h +++ b/include/linux/posix-timers.h @@ -12,6 +12,7 @@ struct kernel_siginfo; struct task_struct; +struct sigqueue; struct k_itimer; static inline clockid_t make_process_cpuclock(const unsigned int pid, @@ -106,6 +107,7 @@ static inline void posix_cputimers_rt_watchdog(struct posix_cputimers *pct, } void posixtimer_rearm_itimer(struct task_struct *p); +bool posixtimer_init_sigqueue(struct sigqueue *q); bool posixtimer_deliver_signal(struct kernel_siginfo *info); void posixtimer_free_timer(struct k_itimer *timer); |