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| author | Tim Blechmann <tim@klingt.org> | 2009-11-30 18:59:34 +0100 |
|---|---|---|
| committer | Pekka Enberg <penberg@cs.helsinki.fi> | 2009-12-06 10:21:21 +0200 |
| commit | 8e15b79cf4bd20c6afb4663d98a39cd004eee672 (patch) | |
| tree | 07fd37869099565727a20ba85cb5b557c5e84fe8 /mm/slab.c | |
| parent | ce79ddc8e2376a9a93c7d42daf89bfcbb9187e62 (diff) | |
| download | lwn-8e15b79cf4bd20c6afb4663d98a39cd004eee672.tar.gz lwn-8e15b79cf4bd20c6afb4663d98a39cd004eee672.zip | |
SLAB: Fix unlikely() annotation in __cache_alloc_node()
Branch profiling on my nehalem machine showed 99% incorrect branch hints:
28459 7678524 99 __cache_alloc_node slab.c 3551
Discussion on lkml [1] led to the solution to remove this hint.
[1] http://patchwork.kernel.org/patch/63517/
Signed-off-by: Tim Blechmann <tim@klingt.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Diffstat (limited to 'mm/slab.c')
| -rw-r--r-- | mm/slab.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/slab.c b/mm/slab.c index 84de47e350dd..a07540e5843b 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3320,7 +3320,7 @@ __cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid, cache_alloc_debugcheck_before(cachep, flags); local_irq_save(save_flags); - if (unlikely(nodeid == -1)) + if (nodeid == -1) nodeid = numa_node_id(); if (unlikely(!cachep->nodelists[nodeid])) { |