diff options
| author | David Howells <dhowells@redhat.com> | 2011-08-08 15:54:53 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-08-08 09:03:16 -0700 |
| commit | 27e4e4362756a78b15e83ef104c8bbe257f40f90 (patch) | |
| tree | e94ce9e5540cc8e2ae9a06aa398bc16a364c29b2 /include/linux/cred.h | |
| parent | 322a8b034003c0d46d39af85bf24fee27b902f48 (diff) | |
| download | linux-stable-27e4e4362756a78b15e83ef104c8bbe257f40f90.tar.gz linux-stable-27e4e4362756a78b15e83ef104c8bbe257f40f90.tar.bz2 linux-stable-27e4e4362756a78b15e83ef104c8bbe257f40f90.zip | |
CRED: Restore const to current_cred()
Commit 3295514841c2 ("fix rcu annotations noise in cred.h") accidentally
dropped the const of current->cred inside current_cred() by the
insertion of a cast to deal with an RCU annotation loss warning from
sparce.
Use an appropriate RCU wrapper instead so as not to lose the const.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/cred.h')
| -rw-r--r-- | include/linux/cred.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/cred.h b/include/linux/cred.h index 98f46efbe2d2..8e2fd44eb160 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -269,7 +269,7 @@ static inline void put_cred(const struct cred *_cred) * since nobody else can modify it. */ #define current_cred() \ - (*(__force struct cred **)¤t->cred) + rcu_dereference_protected(current->cred, 1) /** * __task_cred - Access a task's objective credentials |