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(parent: 0d12cdd) | patch
sched: optimize sched_clock() a bit
authorIngo Molnar <mingo@elte.hu>
Sat, 8 Nov 2008 16:05:38 +0000 (17:05 +0100)
committerIngo Molnar <mingo@elte.hu>
Sat, 8 Nov 2008 16:05:38 +0000 (17:05 +0100)
commit7cbaef9c83e58bbd4bdd534b09052b6c5ec457d5
tree7d2746038b50eb3b2721f506f82de9a0a910c2e6tree | snapshot
parent0d12cdd5f883f508d33b85c1bae98fa28987c8c7commit | diff
sched: optimize sched_clock() a bit

sched_clock() uses cycles_2_ns() needlessly - which is an irq-disabling
variant of __cycles_2_ns().

Most of the time sched_clock() is called with irqs disabled already.
The few places that call it with irqs enabled need to be updated.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/tsc.c diff | blob | history
Linux kernel for KaRo TX COM modules