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authorAl Viro <viro@zeniv.linux.org.uk>2014-11-20 14:23:33 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2014-12-11 16:27:57 -0500
commitd465887f9d6b692214b0edffddf150eb702d35d9 (patch)
tree13456c9662e2cb9d2505b25a48e2f1ae19e6b717 /fs
parent980f3ea2f650b0416c7768af09f4dcbd464d6e43 (diff)
downloadop-kernel-dev-d465887f9d6b692214b0edffddf150eb702d35d9.zip
op-kernel-dev-d465887f9d6b692214b0edffddf150eb702d35d9.tar.gz
fs/namei.c: fold link_path_walk() call into path_init()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/namei.c27
1 files changed, 6 insertions, 21 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 285001f7..7241e26 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1873,7 +1873,7 @@ static int path_init(int dfd, const char *name, unsigned int flags,
} else {
path_get(&nd->path);
}
- return 0;
+ goto done;
}
nd->root.mnt = NULL;
@@ -1934,13 +1934,16 @@ static int path_init(int dfd, const char *name, unsigned int flags,
nd->inode = nd->path.dentry->d_inode;
if (!(flags & LOOKUP_RCU))
- return 0;
+ goto done;
if (likely(!read_seqcount_retry(&nd->path.dentry->d_seq, nd->seq)))
- return 0;
+ goto done;
if (!(nd->flags & LOOKUP_ROOT))
nd->root.mnt = NULL;
rcu_read_unlock();
return -ECHILD;
+done:
+ current->total_link_count = 0;
+ return link_path_walk(name, nd);
}
static void path_cleanup(struct nameidata *nd)
@@ -1984,13 +1987,6 @@ static int path_lookupat(int dfd, const char *name,
* be able to complete).
*/
err = path_init(dfd, name, flags, nd);
-
- if (unlikely(err))
- goto out;
-
- current->total_link_count = 0;
- err = link_path_walk(name, nd);
-
if (!err && !(flags & LOOKUP_PARENT)) {
err = lookup_last(nd, &path);
while (err > 0) {
@@ -2018,7 +2014,6 @@ static int path_lookupat(int dfd, const char *name,
}
}
-out:
path_cleanup(nd);
return err;
}
@@ -2333,11 +2328,6 @@ path_mountpoint(int dfd, const char *name, struct path *path, unsigned int flags
if (unlikely(err))
goto out;
- current->total_link_count = 0;
- err = link_path_walk(name, &nd);
- if (err)
- goto out;
-
err = mountpoint_last(&nd, path);
while (err > 0) {
void *cookie;
@@ -3224,11 +3214,6 @@ static struct file *path_openat(int dfd, struct filename *pathname,
if (unlikely(error))
goto out;
- current->total_link_count = 0;
- error = link_path_walk(pathname->name, nd);
- if (unlikely(error))
- goto out;
-
error = do_last(nd, &path, file, op, &opened, pathname);
while (unlikely(error > 0)) { /* trailing symlink */
struct path link = path;
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