• Eric W. Biederman's avatar
    mnt: Delay removal from the mount hash. · 411a938b
    Eric W. Biederman authored
    - Modify __lookup_mnt_hash_last to ignore mounts that have MNT_UMOUNTED set.
    - Don't remove mounts from the mount hash table in propogate_umount
    - Don't remove mounts from the mount hash table in umount_tree before
      the entire list of mounts to be umounted is selected.
    - Remove mounts from the mount hash table as the last thing that
      happens in the case where a mount has a parent in umount_tree.
      Mounts without parents are not hashed (by definition).
    
    This paves the way for delaying removal from the mount hash table even
    farther and fixing the MNT_LOCKED vs MNT_DETACH issue.
    
    Cc: stable@vger.kernel.org
    Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
    411a938b
pnode.c 10.1 KB