Re: [patch V2 08/11] fs/timerfd: Use the new alarm/hrtimer functions

[Frederic Weisbecker]

Le Wed, Apr 08, 2026 at 01:54:20PM +0200, Thomas Gleixner a écrit :
> Like any other user controlled interface, timerfd based timers can be
> programmed with expiry times in the past or vary small intervals.
> 
> Both hrtimer and alarmtimer provide new interfaces which return the queued
> state of the timer. If the timer was already expired, then let the callsite
> handle the timerfd context update so that the full round trip through the
> hrtimer interrupt is avoided.
> 
> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxx>
> Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
> Cc: Christian Brauner <brauner@xxxxxxxxxx>
> Cc: Jan Kara <jack@xxxxxxx>
> Cc: Anna-Maria Behnsen <anna-maria@xxxxxxxxxxxxx>
> Cc: Frederic Weisbecker <frederic@xxxxxxxxxx>
> Cc: linux-fsdevel@xxxxxxxxxxxxxxx

Reviewed-by: Frederic Weisbecker <frederic@xxxxxxxxxx>

-- 
Frederic Weisbecker
SUSE Labs