diff options
| -rw-r--r-- | fs/namespace.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 746e3fd1f430..b7059a4f07e3 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -795,15 +795,17 @@ static void __touch_mnt_namespace(struct mnt_namespace *ns) /* * vfsmount lock must be held for write */ -static void unhash_mnt(struct mount *mnt) +static struct mountpoint *unhash_mnt(struct mount *mnt) { + struct mountpoint *mp; mnt->mnt_parent = mnt; mnt->mnt_mountpoint = mnt->mnt.mnt_root; list_del_init(&mnt->mnt_child); hlist_del_init_rcu(&mnt->mnt_hash); hlist_del_init(&mnt->mnt_mp_list); - put_mountpoint(mnt->mnt_mp); + mp = mnt->mnt_mp; mnt->mnt_mp = NULL; + return mp; } /* @@ -813,7 +815,7 @@ static void detach_mnt(struct mount *mnt, struct path *old_path) { old_path->dentry = mnt->mnt_mountpoint; old_path->mnt = &mnt->mnt_parent->mnt; - unhash_mnt(mnt); + put_mountpoint(unhash_mnt(mnt)); } /* @@ -823,7 +825,7 @@ static void umount_mnt(struct mount *mnt) { /* old mountpoint will be dropped when we can do that */ mnt->mnt_ex_mountpoint = mnt->mnt_mountpoint; - unhash_mnt(mnt); + put_mountpoint(unhash_mnt(mnt)); } /* |