From 79ac5a46c5c1c17476fbf84b4d4600d6d565defd Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 17 Jul 2011 10:17:46 -0400 Subject: jfs_lookup(): don't bother with . or .. they'll never be passed to ->lookup() Signed-off-by: Al Viro --- fs/jfs/namei.c | 39 +++++++++++++++------------------------ 1 file changed, 15 insertions(+), 24 deletions(-) diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c index 24733155199..03787ef6a11 100644 --- a/fs/jfs/namei.c +++ b/fs/jfs/namei.c @@ -1456,34 +1456,25 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc ino_t inum; struct inode *ip; struct component_name key; - const char *name = dentry->d_name.name; - int len = dentry->d_name.len; int rc; - jfs_info("jfs_lookup: name = %s", name); - - if ((name[0] == '.') && (len == 1)) - inum = dip->i_ino; - else if (strcmp(name, "..") == 0) - inum = PARENT(dip); - else { - if ((rc = get_UCSname(&key, dentry))) - return ERR_PTR(rc); - rc = dtSearch(dip, &key, &inum, &btstack, JFS_LOOKUP); - free_UCSname(&key); - if (rc == -ENOENT) { - d_add(dentry, NULL); - return NULL; - } else if (rc) { - jfs_err("jfs_lookup: dtSearch returned %d", rc); - return ERR_PTR(rc); - } + jfs_info("jfs_lookup: name = %s", dentry->d_name.name); + + if ((rc = get_UCSname(&key, dentry))) + return ERR_PTR(rc); + rc = dtSearch(dip, &key, &inum, &btstack, JFS_LOOKUP); + free_UCSname(&key); + if (rc == -ENOENT) { + ip = NULL; + } else if (rc) { + jfs_err("jfs_lookup: dtSearch returned %d", rc); + ip = ERR_PTR(rc); + } else { + ip = jfs_iget(dip->i_sb, inum); + if (IS_ERR(ip)) + jfs_err("jfs_lookup: iget failed on inum %d", (uint)inum); } - ip = jfs_iget(dip->i_sb, inum); - if (IS_ERR(ip)) - jfs_err("jfs_lookup: iget failed on inum %d", (uint) inum); - return d_splice_alias(ip, dentry); } -- cgit v1.2.3