tree 30ccea8a490bbde0e0760274b6eb4c5863971caa
parent 78f508ab07954d12896097ac07ab2fab443c7ca2
author KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> 1210626126 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1210690943 -0700

make vmstat cpu-unplug safe

When accessing cpu_online_map, we should prevent dynamic changing
of cpu_online_map by get_online_cpus().

Unfortunately, all_vm_events() doesn't do that.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Christoph Lameter <clameter@sgi.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>