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7dda99952c
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@kernel.org> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Link: https://patch.msgid.link/20260408114952.469141112@kernel.org
621 lines
15 KiB
621 lines
15 KiB