slub: add 'likely' macro to inc_slabs_node()
After boot phase, 'n' always exist. So add 'likely' macro for helping compiler. Acked-by: NChristoph Lameter <cl@linux.com> Signed-off-by: NJoonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: NPekka Enberg <penberg@kernel.org>
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