| commit | 4dac3e98840f11bb2d8d52fd375150c7c1912117 | [log] [tgz] |
|---|---|---|
| author | Christoph Lameter <cl@linux-foundation.org> | Sat Oct 03 19:48:23 2009 +0900 |
| committer | Tejun Heo <tj@kernel.org> | Sat Oct 03 19:48:23 2009 +0900 |
| tree | 64a464cb4df4a5e9683da4eabba0e7b399728023 | |
| parent | 0b44f4861f4cc1089424821f078d38441f8b4983 [diff] |
this_cpu: Use this_cpu ops for VM statistics Using per cpu atomics for the vm statistics reduces their overhead. And in the case of x86 we are guaranteed that they will never race even in the lax form used for vm statistics. Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Tejun Heo <tj@kernel.org>