diff options
| author | Christoph Lameter <cl@linux.com> | 2014-04-08 02:39:43 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-08 03:36:14 +0400 |
| commit | 293b6a4c875c3b49853bff7de99954f49f59aa75 (patch) | |
| tree | c05e009383b80e79f477a8d4aa6f779bab04f668 /include/linux/percpu.h | |
| parent | 88da03a67674bcd6e9ecf18a0a182cf1303056ba (diff) | |
| download | linux-293b6a4c875c3b49853bff7de99954f49f59aa75.tar.xz | |
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>
Diffstat (limited to 'include/linux/percpu.h')
0 files changed, 0 insertions, 0 deletions