tree c05e009383b80e79f477a8d4aa6f779bab04f668
parent 88da03a67674bcd6e9ecf18a0a182cf1303056ba
author Christoph Lameter <cl@linux.com> 1396910383 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1396913774 -0700

vmstat: use raw_cpu_ops to avoid false positives on preemption checks

vm counters are allowed to be racy.  Use raw_cpu_ops to avoid the
local_irq_disable overhead and to avoid preemption checks which will be
added to the __this_cpu operations.

[akpm@linux-foundation.org: Add comment.  Again.]
Signed-off-by: Christoph Lameter <cl@linux.com>
Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>