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authorMiklos Szeredi <mszeredi@suse.cz>2012-05-21 17:30:14 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2012-06-01 12:12:00 -0400
commit5f5daac12a4cef568d1269be0215fec0667193c1 (patch)
treefd580ca7c35d607fd9267499193ec1a93b656cc1 /fs
parentd7fdd7f6e1afbffda03aeacb90039c092e8cacf8 (diff)
vfs: do_last() common post lookup
Now the post lookup code can be shared between O_CREAT and plain opens since they are essentially the same. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/namei.c34
1 files changed, 3 insertions, 31 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 125386c250bb..998d5316921a 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2249,37 +2249,7 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
inode = path->dentry->d_inode;
}
- error = -ENOENT;
- if (!inode) {
- path_to_nameidata(path, nd);
- goto exit;
- }
-
- if (should_follow_link(inode, !symlink_ok)) {
- if (nd->flags & LOOKUP_RCU) {
- if (unlikely(unlazy_walk(nd, path->dentry))) {
- error = -ECHILD;
- goto exit;
- }
- }
- BUG_ON(inode != path->dentry->d_inode);
- return NULL;
- }
- path_to_nameidata(path, nd);
- nd->inode = inode;
-
- /* sayonara */
- error = complete_walk(nd);
- if (error)
- return ERR_PTR(error);
-
- error = -ENOTDIR;
- if (nd->flags & LOOKUP_DIRECTORY) {
- if (!nd->inode->i_op->lookup)
- goto exit;
- }
- audit_inode(pathname, nd->path.dentry);
- goto ok;
+ goto finish_lookup;
}
/* create side of things */
@@ -2360,6 +2330,8 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
BUG_ON(nd->flags & LOOKUP_RCU);
inode = path->dentry->d_inode;
+finish_lookup:
+ /* we _can_ be in RCU mode here */
error = -ENOENT;
if (!inode) {
path_to_nameidata(path, nd);