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>
diff --git a/security/keys/encrypted.c b/security/keys/encrypted.c
index 9e7e4ce..69907a5 100644
--- a/security/keys/encrypted.c
+++ b/security/keys/encrypted.c
@@ -765,8 +765,7 @@
size_t asciiblob_len;
int ret;
- epayload = rcu_dereference_protected(key->payload.data,
- rwsem_is_locked(&((struct key *)key)->sem));
+ epayload = rcu_dereference_key(key);
/* returns the hex encoded iv, encrypted-data, and hmac as ascii */
asciiblob_len = epayload->datablob_len + ivsize + 1
