tree 2c888b1dc0b3743855d795a1a02730637d6ba0aa
parent 1f5ce9e93aa96a867f195ed45f6f77935175f12e
author Trond Myklebust <Trond.Myklebust@netapp.com> 1149860057 -0400
committer Trond Myklebust <Trond.Myklebust@netapp.com> 1149860057 -0400

VFS: Add shrink_submounts()

Allow a submount to be marked as being 'shrinkable' by means of the
vfsmount->mnt_flags, and then add a function 'shrink_submounts()' which
attempts to recursively unmount these submounts.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>