tree 69ef56146350a2f7d7bc7743e856490cc14bb7a5
parent 98ec4373bab1d839f794e9a4edc29f77eb9d897e
author Serge E. Hallyn <serue@us.ibm.com> 1272279529 +0100
committer James Morris <jmorris@namei.org> 1272322143 +1000

CRED: Holding a spinlock does not imply the holding of RCU read lock

Change the credentials documentation to make it clear that the RCU read lock
must be explicitly held when accessing credentials pointers in some other task
than current.  Holding a spinlock does not implicitly hold the RCU read lock.

Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>