Commit 468fd62e authored by Dimitri Sivanich's avatar Dimitri Sivanich Committed by Linus Torvalds

vmstats: add cond_resched() to refresh_cpu_vm_stats()

We've found that it can take quite a bit of time (100's of usec) to get
through the zone loop in refresh_cpu_vm_stats().

Adding a cond_resched() to allow other threads to run in the non-preemptive
case.
Signed-off-by: default avatarDimitri Sivanich <sivanich@sgi.com>
Acked-by: default avatarChristoph Lameter <clameter@sgi.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 8cece85e
......@@ -322,6 +322,7 @@ void refresh_cpu_vm_stats(int cpu)
p->expire = 3;
#endif
}
cond_resched();
#ifdef CONFIG_NUMA
/*
* Deal with draining the remote pageset of this
......
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