timers: Expand clk forward logic beyond nohz

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As for next_expiry, the base->clk catch up logic will be expanded beyond
NOHZ in order to avoid triggering useless softirqs.

If softirqs should only fire to expire pending timers, periodic base->clk
increments must be skippable for random amounts of time.  Therefore prepare
to catch-up with missing updates whenever an up-to-date base clock is
needed.

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/20200717140551.29076-10-frederic@kernel.org

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Frederic Weisbecker 2020-07-17 16:05:48 +02:00 • committed by Thomas Gleixner

parent 90d52f65f3

commit 1f8a4212dc

1 changed files with 4 additions and 22 deletions

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kernel/time/timer.c

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