[RFC][PATCH v3 55/55] fs/namei.c: kill follow_mount()

Al Viro
2020-03-01T21:53:17Z

the only remaining caller should be using follow_down() anyway

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/namei.c | 18 +-----------------
1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index f247eca119f1..d9fd5fd43ca1 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1414,22 +1414,6 @@ static bool choose_mountpoint(struct mount *m, const struct path *root,
}

/*
- * Skip to top of mountpoint pile in refwalk mode for follow_dotdot()
- */
-static void follow_mount(struct path *path)
-{
- while (d_mountpoint(path->dentry)) {
- struct vfsmount *mounted = lookup_mnt(path);
- if (!mounted)
- break;
- dput(path->dentry);
- mntput(path->mnt);
- path->mnt = mounted;
- path->dentry = dget(mounted->mnt_root);
- }
-}
-
-/*
* This looks up the name in dcache and possibly revalidates the found dentry.
* NULL is returned if the dentry does not exist in the cache.
*/
@@ -2668,7 +2652,7 @@ int path_pts(struct path *path)

path->dentry = child;
dput(parent);
- follow_mount(path);
+ follow_down(path);
return 0;
}
#endif
--
2.11.0