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[PATCH] slab: Use same schedule timeout for all cpus in cache_reap 

Chen noticed that cache_reap uses REAPTIMEOUT_CPUC+smp_processor_id() as
the timeout for rescheduling.

The "+smp_processor_id()" part is wrong, the timeout should be identical
for all cpus: start_cpu_timer already adds a cpu dependant offset to avoid
any clustering.

The attached patch removes smp_processor_id().

Signed-Off-By: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Manfred Spraul 2005-11-07 00:58:02 -08:00 committed by Linus Torvalds
parent 2109a2d1b1
commit cd61ef6268
1 changed files with 2 additions and 2 deletions
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4
mm/slab.c
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@ -3279,7 +3279,7 @@ static void cache_reap(void *unused)
if (down_trylock(&cache_chain_sem)) {
/* Give up. Setup the next iteration. */
schedule_delayed_work(&__get_cpu_var(reap_work), REAPTIMEOUT_CPUC + smp_processor_id());
schedule_delayed_work(&__get_cpu_var(reap_work), REAPTIMEOUT_CPUC);
return;
}
@ -3348,7 +3348,7 @@ next:
up(&cache_chain_sem);
drain_remote_pages();
/* Setup the next iteration */
schedule_delayed_work(&__get_cpu_var(reap_work), REAPTIMEOUT_CPUC + smp_processor_id());
schedule_delayed_work(&__get_cpu_var(reap_work), REAPTIMEOUT_CPUC);
}
#ifdef CONFIG_PROC_FS