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authorDavid Howells <dhowells@redhat.com>2011-03-07 15:05:51 +0000
committerJames Morris <jmorris@namei.org>2011-03-08 11:17:11 +1100
commit633e804e89464d3875e59de1959a53f9041d3094 (patch)
tree0a2464267c5f7a4e8166771fdc88e181a5b6219a /security/keys/trusted.c
parentMerge branch 'master'; commit 'v2.6.38-rc7' into next (diff)
downloadlinux-dev-633e804e89464d3875e59de1959a53f9041d3094.tar.xz
linux-dev-633e804e89464d3875e59de1959a53f9041d3094.zip
KEYS: Add an RCU payload dereference macro
Add an RCU payload dereference macro as this seems to be a common piece of code amongst key types that use RCU referenced payloads. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/keys/trusted.c')
-rw-r--r--security/keys/trusted.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/security/keys/trusted.c b/security/keys/trusted.c
index 83fc92e297cd..c99b9368368c 100644
--- a/security/keys/trusted.c
+++ b/security/keys/trusted.c
@@ -1076,8 +1076,7 @@ static long trusted_read(const struct key *key, char __user *buffer,
char *bufp;
int i;
- p = rcu_dereference_protected(key->payload.data,
- rwsem_is_locked(&((struct key *)key)->sem));
+ p = rcu_dereference_key(key);
if (!p)
return -EINVAL;
if (!buffer || buflen <= 0)