[PATCH-selinuxns] selinux: Annotate lockdep for services locks

Commit Message

Peter Enderborg Feb. 2, 2018, 2:16 p.m. UTC

The locks are moved to dynamic allocation, we need to
help the lockdep system to classify the locks.
This adds to lockdep annotation for the page mutex and
for the ss lock.

Signed-off-by: Peter Enderborg <[e-mail]>
---
 security/selinux/ss/services.c | 5 +++++
 1 file changed, 5 insertions(+)

Patch

diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index abc5383..ba463c0 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -70,6 +70,9 @@ 
 #include "ebitmap.h"
 #include "audit.h"
 
+static struct lock_class_key selinux_ss_class_key;
+static struct lock_class_key selinux_status_class_key;
+
 /* Policy capability names */
 char *selinux_policycap_names[__POLICYDB_CAPABILITY_MAX] = {
 	"network_peer_controls",
@@ -88,7 +91,9 @@  int selinux_ss_create(struct selinux_ss **ss)
 	if (!newss)
 		return -ENOMEM;
 	rwlock_init(&newss->policy_rwlock);
+	lockdep_set_class(&newss->policy_rwlock, &selinux_ss_class_key);
 	mutex_init(&newss->status_lock);
+	lockdep_set_class(&newss->status_lock, &selinux_status_class_key);
 	*ss = newss;
 	return 0;
 }