tree ffcc93af9390339adda36668255e617073b724a1
parent 158e1645e07f3e9f7e4962d7a0997f5c3b98311b
author Al Viro <viro@zeniv.linux.org.uk> 1340780839 +0400
committer Al Viro <viro@zeniv.linux.org.uk> 1342987076 +0400

merge task_work and rcu_head, get rid of separate allocation for keyring case

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>