itimers: Simplify arm_timer() code a bit

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Don't update values in expiration cache when new ones are
equal. Add expire_le() and expire_gt() helpers to simplify the
code.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
LKML-Reference: <1248862529-6063-4-git-send-email-sgruszka@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Stanislaw Gruszka 2009-07-29 12:15:28 +02:00 • committed by Ingo Molnar

parent 8356b5f9c4

commit d1e3b6d195

1 changed files with 23 additions and 21 deletions

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kernel/posix-cpu-timers.c

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