The patch titled
remove unlikely(sb) in prune_dcache
has been added to the -mm tree. Its filename is
remove-unlikelysb-in-prune_dcache.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: remove unlikely(sb) in prune_dcache
From: Hua Zhong <hzhong@xxxxxxxxx>
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@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/dcache.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN fs/dcache.c~remove-unlikelysb-in-prune_dcache fs/dcache.c
--- a/fs/dcache.c~remove-unlikelysb-in-prune_dcache
+++ a/fs/dcache.c
@@ -406,7 +406,7 @@ static void prune_dcache(int count, stru
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
_
Patches currently in -mm which might be from hzhong@xxxxxxxxx are
origin.patch
remove-unlikelysb-in-prune_dcache.patch
ide-error-handling-fixes.patch
profile-likely-unlikely-macros.patch
-
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