tree edda8e25792fe4a7bf0c619787949291276b9ed7
parent c25d5180441e344a3368d100c57f0a481c6944f7
author paul.moore@hp.com <paul.moore@hp.com> 1159976791 -0400
committer David S. Miller <davem@sunset.davemloft.net> 1160636369 -0700

NetLabel: fix a cache race condition

Testing revealed a problem with the NetLabel cache where a cached entry could
be freed while in use by the LSM layer causing an oops and other problems.
This patch fixes that problem by introducing a reference counter to the cache
entry so that it is only freed when it is no longer in use.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: James Morris <jmorris@namei.org>