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mempool: add unlikely and likely hints
authorMikulas Patocka <mpatocka@redhat.com>
Mon, 7 Apr 2014 22:37:35 +0000 (15:37 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 7 Apr 2014 23:35:55 +0000 (16:35 -0700)
commiteb9a3c62a0b6064c7f7e5b961ce00c646d21cb78
treefecb27f0ba700b13c2b05364159c4230589b0099
parentda1c67a76f7cf2b3404823d24f9f10fa91aa5dc5
mempool: add unlikely and likely hints

Add unlikely and likely hints to the function mempool_free.  It lays out
the code in such a way that the common path is executed straighforward and
saves a cache line.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/mempool.c