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authorEric Dumazet <dada1@cosmosbay.com>2007-05-06 14:49:28 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-07 12:12:53 -0700
commit6310984694c8204ad16a2414cd58808fae68e02b (patch)
tree9579700c6b8b99e873462018cf536c00ab76dfb6 /include
parent364fbb29a0105863d76a1f7bbc01783a4af30a75 (diff)
downloadop-kernel-dev-6310984694c8204ad16a2414cd58808fae68e02b.zip
op-kernel-dev-6310984694c8204ad16a2414cd58808fae68e02b.tar.gz
SLAB: don't allocate empty shared caches
We can avoid allocating empty shared caches and avoid unecessary check of cache->limit. We save some memory. We avoid bringing into CPU cache unecessary cache lines. All accesses to l3->shared are already checking NULL pointers so this patch is safe. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Christoph Lameter <clameter@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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