merge task_work and rcu_head, get rid of separate allocation for keyring case
authorAl Viro <viro@zeniv.linux.org.uk>
Wed, 27 Jun 2012 07:07:19 +0000 (11:07 +0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Sun, 22 Jul 2012 19:57:56 +0000 (23:57 +0400)
task_work and rcu_head are identical now; merge them (calling the result
struct callback_head, rcu_head #define'd to it), kill separate allocation
in security/keys since we can just use cred->rcu now.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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