6 files changed, 9 insertions, 48 deletions

diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
index c825c6e..7312bf9 100644
--- a/security/apparmor/domain.c
+++ b/security/apparmor/domain.c
@@ -67,7 +67,7 @@ static int may_change_ptraced_domain(struct task_struct *task,
 	int error = 0;
 
 	rcu_read_lock();
-	tracer = tracehook_tracer_task(task);
+	tracer = ptrace_parent(task);
 	if (tracer) {
 		/* released below */
 		cred = get_task_cred(tracer);
diff --git a/security/apparmor/lib.c b/security/apparmor/lib.c
index 506d2ba..b82e383 100644
--- a/security/apparmor/lib.c
+++ b/security/apparmor/lib.c
@@ -12,6 +12,7 @@
  * License.
  */
 
+#include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/vmalloc.h>
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 1be6826..4450fbe 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -125,14 +125,6 @@ static int dev_whitelist_add(struct dev_cgroup *dev_cgroup,
 	return 0;
 }
 
-static void whitelist_item_free(struct rcu_head *rcu)
-{
-	struct dev_whitelist_item *item;
-
-	item = container_of(rcu, struct dev_whitelist_item, rcu);
-	kfree(item);
-}
-
 /*
  * called under devcgroup_mutex
  */
@@ -155,7 +147,7 @@ remove:
 		walk->access &= ~wh->access;
 		if (!walk->access) {
 			list_del_rcu(&walk->list);
-			call_rcu(&walk->rcu, whitelist_item_free);
+			kfree_rcu(walk, rcu);
 		}
 	}
 }
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index eb5d5cd..9f4c77d 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2053,7 +2053,7 @@ static int selinux_bprm_set_creds(struct linux_binprm *bprm)
 			u32 ptsid = 0;
 
 			rcu_read_lock();
-			tracer = tracehook_tracer_task(current);
+			tracer = ptrace_parent(current);
 			if (likely(tracer != NULL)) {
 				sec = __task_cred(tracer)->security;
 				ptsid = sec->sid;
@@ -5320,7 +5320,7 @@ static int selinux_setprocattr(struct task_struct *p,
 		   Otherwise, leave SID unchanged and fail. */
 		ptsid = 0;
 		task_lock(p);
-		tracer = tracehook_tracer_task(p);
+		tracer = ptrace_parent(p);
 		if (tracer)
 			ptsid = task_sid(tracer);
 		task_unlock(p);
diff --git a/security/selinux/netnode.c b/security/selinux/netnode.c
index 3618251..8b691a8 100644
--- a/security/selinux/netnode.c
+++ b/security/selinux/netnode.c
@@ -69,22 +69,6 @@ static DEFINE_SPINLOCK(sel_netnode_lock);
 static struct sel_netnode_bkt sel_netnode_hash[SEL_NETNODE_HASH_SIZE];
 
 /**
- * sel_netnode_free - Frees a node entry
- * @p: the entry's RCU field
- *
- * Description:
- * This function is designed to be used as a callback to the call_rcu()
- * function so that memory allocated to a hash table node entry can be
- * released safely.
- *
- */
-static void sel_netnode_free(struct rcu_head *p)
-{
-	struct sel_netnode *node = container_of(p, struct sel_netnode, rcu);
-	kfree(node);
-}
-
-/**
  * sel_netnode_hashfn_ipv4 - IPv4 hashing function for the node table
  * @addr: IPv4 address
  *
@@ -193,7 +177,7 @@ static void sel_netnode_insert(struct sel_netnode *node)
 			rcu_dereference(sel_netnode_hash[idx].list.prev),
 			struct sel_netnode, list);
 		list_del_rcu(&tail->list);
-		call_rcu(&tail->rcu, sel_netnode_free);
+		kfree_rcu(tail, rcu);
 	} else
 		sel_netnode_hash[idx].size++;
 }
@@ -306,7 +290,7 @@ static void sel_netnode_flush(void)
 		list_for_each_entry_safe(node, node_tmp,
 					 &sel_netnode_hash[idx].list, list) {
 				list_del_rcu(&node->list);
-				call_rcu(&node->rcu, sel_netnode_free);
+				kfree_rcu(node, rcu);
 		}
 		sel_netnode_hash[idx].size = 0;
 	}
diff --git a/security/selinux/netport.c b/security/selinux/netport.c
index cfe2d72..ae76e29 100644
--- a/security/selinux/netport.c
+++ b/security/selinux/netport.c
@@ -68,22 +68,6 @@ static DEFINE_SPINLOCK(sel_netport_lock);
 static struct sel_netport_bkt sel_netport_hash[SEL_NETPORT_HASH_SIZE];
 
 /**
- * sel_netport_free - Frees a port entry
- * @p: the entry's RCU field
- *
- * Description:
- * This function is designed to be used as a callback to the call_rcu()
- * function so that memory allocated to a hash table port entry can be
- * released safely.
- *
- */
-static void sel_netport_free(struct rcu_head *p)
-{
-	struct sel_netport *port = container_of(p, struct sel_netport, rcu);
-	kfree(port);
-}
-
-/**
  * sel_netport_hashfn - Hashing function for the port table
  * @pnum: port number
  *
@@ -142,7 +126,7 @@ static void sel_netport_insert(struct sel_netport *port)
 			rcu_dereference(sel_netport_hash[idx].list.prev),
 			struct sel_netport, list);
 		list_del_rcu(&tail->list);
-		call_rcu(&tail->rcu, sel_netport_free);
+		kfree_rcu(tail, rcu);
 	} else
 		sel_netport_hash[idx].size++;
 }
@@ -241,7 +225,7 @@ static void sel_netport_flush(void)
 		list_for_each_entry_safe(port, port_tmp,
 					 &sel_netport_hash[idx].list, list) {
 			list_del_rcu(&port->list);
-			call_rcu(&port->rcu, sel_netport_free);
+			kfree_rcu(port, rcu);
 		}
 		sel_netport_hash[idx].size = 0;
 	}