fs: take dcache_lock inside __d_path

All callers take dcache_lock just around the call to __d_path, so
take the lock into it in preparation of getting rid of dcache_lock.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 0 insertions, 2 deletions

diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index ed8ccd680102..1d0bf8fa1922 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -127,10 +127,8 @@ char *tomoyo_realpath_from_path(struct path *path)
                 /* If we don't have a vfsmount, we can't calculate. */
                 if (!path->mnt)
                         break;
-                spin_lock(&dcache_lock);
                 /* go to whatever namespace root we are under */
                 pos = __d_path(path, &ns_root, buf, buf_len);
-                spin_unlock(&dcache_lock);
                 /* Prepend "/proc" prefix if using internal proc vfs mount. */
                 if (!IS_ERR(pos) && (path->mnt->mnt_flags & MNT_INTERNAL) &&
                     (path->mnt->mnt_sb->s_magic == PROC_SUPER_MAGIC)) {