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posix-timers: Clarify posix_timer_rearm() comment

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Yet another incomprehensible piece of art.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.724863461@linutronix.de
This commit is contained in:
Thomas Gleixner 2023-04-25 20:49:22 +02:00
parent c575689d66
commit 02972d7955
1 changed files with 3 additions and 9 deletions
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12
kernel/time/posix-timers.c
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@ -275,15 +275,9 @@ static void common_hrtimer_rearm(struct k_itimer *timr)
}
/*
* This function is exported for use by the signal deliver code. It is
* called just prior to the info block being released and passes that
* block to us. It's function is to update the overrun entry AND to
* restart the timer. It should only be called if the timer is to be
* restarted (i.e. we have flagged this in the sys_private entry of the
* info block).
*
* To protect against the timer going away while the interrupt is queued,
* we require that the it_requeue_pending flag be set.
* This function is called from the signal delivery code if
* info->si_sys_private is not zero, which indicates that the timer has to
* be rearmed. Restart the timer and update info::si_overrun.
*/
void posixtimer_rearm(struct kernel_siginfo *info)
{