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authorChristoph Lameter <cl@linux-foundation.org>2009-10-03 19:48:23 +0900
committerTejun Heo <tj@kernel.org>2009-10-03 19:48:23 +0900
commit4dac3e98840f11bb2d8d52fd375150c7c1912117 (patch)
tree64a464cb4df4a5e9683da4eabba0e7b399728023 /kernel/rcutorture.c
parent0b44f4861f4cc1089424821f078d38441f8b4983 (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>
Diffstat (limited to 'kernel/rcutorture.c')
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