diff options
Diffstat (limited to 'fs/namespace.c')
| -rw-r--r-- | fs/namespace.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 6d499ab254b7..7cd642409165 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1937,6 +1937,9 @@ struct vfsmount *clone_private_mount(const struct path *path) if (IS_ERR(new_mnt)) return ERR_CAST(new_mnt); + /* Longterm mount to be removed by kern_unmount*() */ + new_mnt->mnt_ns = MNT_NS_INTERNAL; + return &new_mnt->mnt; } EXPORT_SYMBOL_GPL(clone_private_mount); @@ -3863,6 +3866,19 @@ void kern_unmount(struct vfsmount *mnt) } EXPORT_SYMBOL(kern_unmount); +void kern_unmount_array(struct vfsmount *mnt[], unsigned int num) +{ + unsigned int i; + + for (i = 0; i < num; i++) + if (mnt[i]) + real_mount(mnt[i])->mnt_ns = NULL; + synchronize_rcu_expedited(); + for (i = 0; i < num; i++) + mntput(mnt[i]); +} +EXPORT_SYMBOL(kern_unmount_array); + bool our_mnt(struct vfsmount *mnt) { return check_mnt(real_mount(mnt)); |