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timers: Reuse next expiry cache after nohz exit
authorFrederic Weisbecker <frederic@kernel.org>
Fri, 17 Jul 2020 14:05:47 +0000 (16:05 +0200)
committerThomas Gleixner <tglx@linutronix.de>
Fri, 17 Jul 2020 19:55:23 +0000 (21:55 +0200)
commit90d52f65f303091be17b5f4ffab7090b2064b4a1
tree8071a55734eda6a2f45983d9ccdb6af97865bd84tree | snapshot
parentdc2a0f1fb2a06df09f5094f29aea56b763aa7ccacommit | diff
timers: Reuse next expiry cache after nohz exit

Now that the next expiry it tracked unconditionally when a timer is added,
this information can be reused on a tick firing after exiting nohz.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Link: https://lkml.kernel.org/r/20200717140551.29076-9-frederic@kernel.org
kernel/time/timer.c diff | blob | history
Domain: System / Kernel;