linux-kernel - [PATCH 2/3] SELinux: seperate avc

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Date:	Sat, 12 Sep 2009 22:54:17 -0400
From:	Eric Paris <eparis@...hat.com>
To:	linux-kernel@...r.kernel.org, selinux@...ho.nsa.gov
Cc:	sds@...ho.nsa.gov, jmorris@...ei.org, mingo@...e.hu,
	dhowells@...hat.com
Subject: [PATCH 2/3] SELinux: seperate avc_cache flushing

Move the avc_cache flushing into it's own function so it can be reused when
disabling SELinux.

Signed-off-by: Eric Paris <eparis@...hat.com>
---

 security/selinux/avc.c |   24 +++++++++++++++++-------
 1 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index e3d1901..f601246 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -709,18 +709,16 @@ out:
 }
 
 /**
- * avc_ss_reset - Flush the cache and revalidate migrated permissions.
- * @seqno: policy sequence number
+ * avc_flush - Flush the cache
  */
-int avc_ss_reset(u32 seqno)
+static void avc_flush(void)
 {
-	struct avc_callback_node *c;
-	int i, rc = 0, tmprc;
-	unsigned long flag;
-	struct avc_node *node;
 	struct hlist_head *head;
 	struct hlist_node *next;
+	struct avc_node *node;
 	spinlock_t *lock;
+	unsigned long flag;
+	int i;
 
 	for (i = 0; i < AVC_CACHE_SLOTS; i++) {
 		head = &avc_cache.slots[i];
@@ -737,6 +735,18 @@ int avc_ss_reset(u32 seqno)
 		rcu_read_unlock();
 		spin_unlock_irqrestore(lock, flag);
 	}
+}
+
+/**
+ * avc_ss_reset - Flush the cache and revalidate migrated permissions.
+ * @seqno: policy sequence number
+ */
+int avc_ss_reset(u32 seqno)
+{
+	struct avc_callback_node *c;
+	int rc = 0, tmprc;
+
+	avc_flush();
 
 	for (c = avc_callbacks; c; c = c->next) {
 		if (c->events & AVC_CALLBACK_RESET) {

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