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-rw-r--r--security/apparmor/include/lib.h11
-rw-r--r--security/apparmor/label.c8
2 files changed, 4 insertions, 15 deletions
diff --git a/security/apparmor/include/lib.h b/security/apparmor/include/lib.h
index 436b3a722357..f546707a2bbb 100644
--- a/security/apparmor/include/lib.h
+++ b/security/apparmor/include/lib.h
@@ -19,17 +19,6 @@
#include "match.h"
-/* Provide our own test for whether a write lock is held for asserts
- * this is because on none SMP systems write_can_lock will always
- * resolve to true, which is what you want for code making decisions
- * based on it, but wrong for asserts checking that the lock is held
- */
-#ifdef CONFIG_SMP
-#define write_is_locked(X) !write_can_lock(X)
-#else
-#define write_is_locked(X) (1)
-#endif /* CONFIG_SMP */
-
/*
* DEBUG remains global (no per profile flag) since it is mostly used in sysctl
* which is not related to profile accesses.
diff --git a/security/apparmor/label.c b/security/apparmor/label.c
index c5b99b954580..ad28e03a6f30 100644
--- a/security/apparmor/label.c
+++ b/security/apparmor/label.c
@@ -80,7 +80,7 @@ void __aa_proxy_redirect(struct aa_label *orig, struct aa_label *new)
AA_BUG(!orig);
AA_BUG(!new);
- AA_BUG(!write_is_locked(&labels_set(orig)->lock));
+ lockdep_assert_held_exclusive(&labels_set(orig)->lock);
tmp = rcu_dereference_protected(orig->proxy->label,
&labels_ns(orig)->lock);
@@ -571,7 +571,7 @@ static bool __label_remove(struct aa_label *label, struct aa_label *new)
AA_BUG(!ls);
AA_BUG(!label);
- AA_BUG(!write_is_locked(&ls->lock));
+ lockdep_assert_held_exclusive(&ls->lock);
if (new)
__aa_proxy_redirect(label, new);
@@ -608,7 +608,7 @@ static bool __label_replace(struct aa_label *old, struct aa_label *new)
AA_BUG(!ls);
AA_BUG(!old);
AA_BUG(!new);
- AA_BUG(!write_is_locked(&ls->lock));
+ lockdep_assert_held_exclusive(&ls->lock);
AA_BUG(new->flags & FLAG_IN_TREE);
if (!label_is_stale(old))
@@ -645,7 +645,7 @@ static struct aa_label *__label_insert(struct aa_labelset *ls,
AA_BUG(!ls);
AA_BUG(!label);
AA_BUG(labels_set(label) != ls);
- AA_BUG(!write_is_locked(&ls->lock));
+ lockdep_assert_held_exclusive(&ls->lock);
AA_BUG(label->flags & FLAG_IN_TREE);
/* Figure out where to put new node */