[PATCH 1/2] LSM: switch to blocking policy update notifiers

[Janne Karhunen]

Atomic policy updaters are not very useful as they cannot
usually perform the policy updates on their own. Since it
seems that there is no strict need for the atomicity,
switch to the blocking variant.

Signed-off-by: Janne Karhunen <janne.karhunen at gmail.com>
---
 security/security.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/security/security.c b/security/security.c
index 23cbb1a295a3..c5e69ce81521 100644
--- a/security/security.c
+++ b/security/security.c
@@ -39,7 +39,7 @@
 #define LSM_COUNT (__end_lsm_info - __start_lsm_info)
 
 struct security_hook_heads security_hook_heads __lsm_ro_after_init;
-static ATOMIC_NOTIFIER_HEAD(lsm_notifier_chain);
+static BLOCKING_NOTIFIER_HEAD(lsm_notifier_chain);
 
 static struct kmem_cache *lsm_file_cache;
 static struct kmem_cache *lsm_inode_cache;
@@ -432,19 +432,19 @@ void __init security_add_hooks(struct security_hook_list *hooks, int count,
 
 int call_lsm_notifier(enum lsm_event event, void *data)
 {
-	return atomic_notifier_call_chain(&lsm_notifier_chain, event, data);
+	return blocking_notifier_call_chain(&lsm_notifier_chain, event, data);
 }
 EXPORT_SYMBOL(call_lsm_notifier);
 
 int register_lsm_notifier(struct notifier_block *nb)
 {
-	return atomic_notifier_chain_register(&lsm_notifier_chain, nb);
+	return blocking_notifier_chain_register(&lsm_notifier_chain, nb);
 }
 EXPORT_SYMBOL(register_lsm_notifier);
 
 int unregister_lsm_notifier(struct notifier_block *nb)
 {
-	return atomic_notifier_chain_unregister(&lsm_notifier_chain, nb);
+	return blocking_notifier_chain_unregister(&lsm_notifier_chain, nb);
 }
 EXPORT_SYMBOL(unregister_lsm_notifier);
 
-- 
2.17.1