diff options
Diffstat (limited to 'fs/namespace.c')
| -rw-r--r-- | fs/namespace.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index a0d0ef1f1a4..9d17541ebaf 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -869,7 +869,7 @@ void mark_mounts_for_expiry(struct list_head *mounts) /* don't do anything if the namespace is dead - all the * vfsmounts from it are going away anyway */ namespace = mnt->mnt_namespace; - if (!namespace || atomic_read(&namespace->count) <= 0) + if (!namespace || !namespace->root) continue; get_namespace(namespace); @@ -1450,9 +1450,12 @@ void __init mnt_init(unsigned long mempages) void __put_namespace(struct namespace *namespace) { + struct vfsmount *root = namespace->root; + namespace->root = NULL; + spin_unlock(&vfsmount_lock); down_write(&namespace->sem); spin_lock(&vfsmount_lock); - umount_tree(namespace->root); + umount_tree(root); spin_unlock(&vfsmount_lock); up_write(&namespace->sem); kfree(namespace); |