[PATCH 24/25] Unionfs: add un/likely conditionals on xattr ops

Erez Zadok
2007-09-26T03:28:33Z

fs/unionfs/xattr.c | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/unionfs/xattr.c b/fs/unionfs/xattr.c
index 7f77d7d..bd2de06 100644
--- a/fs/unionfs/xattr.c
+++ b/fs/unionfs/xattr.c
@@ -23,14 +23,14 @@ void *unionfs_xattr_alloc(size_t size, size_t limit)
{
void *ptr;

- if (size > limit)
+ if (unlikely(size > limit))
return ERR_PTR(-E2BIG);

if (!size) /* size request, no buffer is needed */
return NULL;

ptr = kmalloc(size, GFP_KERNEL);
- if (!ptr)
+ if (unlikely(!ptr))
return ERR_PTR(-ENOMEM);
return ptr;
}
@@ -48,7 +48,7 @@ ssize_t unionfs_getxattr(struct dentry *dentry, const char *name, void *value,
unionfs_read_lock(dentry->d_sb);
unionfs_lock_dentry(dentry);

- if (!__unionfs_d_revalidate_chain(dentry, NULL, false)) {
+ if (unlikely(!__unionfs_d_revalidate_chain(dentry, NULL, false))) {
err = -ESTALE;
goto out;
}
@@ -77,7 +77,7 @@ int unionfs_setxattr(struct dentry *dentry, const char *name,
unionfs_read_lock(dentry->d_sb);
unionfs_lock_dentry(dentry);

- if (!__unionfs_d_revalidate_chain(dentry, NULL, false)) {
+ if (unlikely(!__unionfs_d_revalidate_chain(dentry, NULL, false))) {
err = -ESTALE;
goto out;
}
@@ -106,7 +106,7 @@ int unionfs_removexattr(struct dentry *dentry, const char *name)
unionfs_read_lock(dentry->d_sb);
unionfs_lock_dentry(dentry);

- if (!__unionfs_d_revalidate_chain(dentry, NULL, false)) {
+ if (unlikely(!__unionfs_d_revalidate_chain(dentry, NULL, false))) {
err = -ESTALE;
goto out;
}
@@ -135,7 +135,7 @@ ssize_t unionfs_listxattr(struct dentry *dentry, char *list, size_t size)
unionfs_read_lock(dentry->d_sb);
unionfs_lock_dentry(dentry);

- if (!__unionfs_d_revalidate_chain(dentry, NULL, false)) {
+ if (unlikely(!__unionfs_d_revalidate_chain(dentry, NULL, false))) {
err = -ESTALE;
goto out;
}
--
1.5.2.2