tree 2acf7f919cb2edd77a4f9ed0a434b6dbec19708e
parent 7180c4c9e09888db0a188f729c96c6d7bd61fa83
author Eric Paris <eparis@redhat.com> 1207764515 -0400
committer James Morris <jmorris@namei.org> 1207781461 +1000

SELinux: don't BUG if fs reuses a superblock

I (wrongly) assumed that nfs_xdev_get_sb() would not ever share a superblock
and so cloning mount options would always be correct.  Turns out that isn't
the case and we could fall over a BUG_ON() that wasn't a BUG at all.  Since
there is little we can do to reconcile different mount options this patch
just leaves the sb alone and the first set of options wins.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: James Morris <jmorris@namei.org>