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[PATCH] remove unlikely(sb) in prune_dcache 

likely profiling shows that the following is a miss.

After boot:
[+- ] Type | # True | # False | Function:Filename@Line
+unlikely |     1074|        0  prune_dcache()@:fs/dcache.c@409

After a bonnie++ run:
+unlikely |    66716|    19584  prune_dcache()@:fs/dcache.c@409

So remove it.

Signed-off-by: Hua Zhong <hzhong@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Hua Zhong 2006-06-25 05:49:32 -07:00 committed by Linus Torvalds
parent d84a84775b
commit f58a1ebb22
1 changed files with 1 additions and 1 deletions
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2
fs/dcache.c
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@ -406,7 +406,7 @@ static void prune_dcache(int count, struct super_block *sb)
cond_resched_lock(&dcache_lock);
tmp = dentry_unused.prev;
if (unlikely(sb)) {
if (sb) {
/* Try to find a dentry for this sb, but don't try
* too hard, if they aren't near the tail they will
* be moved down again soon