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Mimi Zohar 6ac6172a93 encrypted-keys: fix rcu and sparse messages 
Enabling CONFIG_PROVE_RCU and CONFIG_SPARSE_RCU_POINTER resulted in
"suspicious rcu_dereference_check() usage!" and "incompatible types
in comparison expression (different address spaces)" messages.

Access the masterkey directly when holding the rwsem.

Changelog v1:
- Use either rcu_read_lock()/rcu_derefence_key()/rcu_read_unlock()
or remove the unnecessary rcu_derefence() - David Howells

Reported-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
 		2012-01-18 10:41:30 +11:00
..
encrypted-keys encrypted-keys: fix rcu and sparse messages 2012-01-18 10:41:30 +11:00
Makefile encrypted-keys: create encrypted-keys directory 2011-09-14 15:22:26 -04:00
compat.c Cross Memory Attach 2011-10-31 17:30:44 -07:00
gc.c KEYS: Add missing smp_rmb() primitives to the keyring search code 2012-01-18 10:41:27 +11:00
internal.h KEYS: Correctly destroy key payloads when their keytype is removed 2011-08-23 09:57:37 +10:00
key.c KEYS: Give key types their own lockdep class for key->sem 2011-11-17 09:35:32 +11:00
keyctl.c Cross Memory Attach 2011-10-31 17:30:44 -07:00
keyring.c KEYS: Add missing smp_rmb() primitives to the keyring search code 2012-01-18 10:41:27 +11:00
permission.c KEYS: Fix up comments in key management code 2011-01-21 14:59:30 -08:00
proc.c KEYS: Improve /proc/keys 2011-03-17 11:59:32 +11:00
process_keys.c KEYS: keyctl_get_keyring_ID() should create a session keyring if create flag set 2011-08-23 09:57:34 +10:00
request_key.c KEYS: Fix error handling in construct_key_and_link() 2011-06-21 18:31:45 -07:00
request_key_auth.c KEYS: Don't return EAGAIN to keyctl_assume_authority() 2011-06-14 15:03:29 +10:00
sysctl.c sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
trusted.c keys: fix trusted/encrypted keys sparse rcu_assign_pointer messages 2012-01-18 10:41:29 +11:00
trusted.h trusted-keys: rename trusted_defined files to trusted 2011-01-24 10:14:22 +11:00
user_defined.c KEYS: Fix a NULL pointer deref in the user-defined key type 2011-11-15 22:32:38 -02:00