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>
diff --git a/mm/slab.c b/mm/slab.c
index 84de47e..a07540e 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3320,7 +3320,7 @@
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])) {