[patch 17/20] posix-timers: Clarify posix_timer_rearm() comment

Thomas Gleixner
2023-04-25T18:50:33Z

Yet another incomprehensible piece of art.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
kernel/time/posix-timers.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)

--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -274,15 +274,9 @@ static void common_hrtimer_rearm(struct
}

/*
- * 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)
{