Commit 02972d79 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

posix-timers: Clarify posix_timer_rearm() comment 



Yet another incomprehensible piece of art.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarFrederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.724863461@linutronix.de
parent c575689d

kernel/time/posix-timers.c

+3 −9
Original line number Diff line number Diff line
@@ -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)

{