ima: report policy load status

Audit messages are rate limited, often causing the policy update
info to not be visible.  Report policy loading status also using
pr_info.

Changes in v2:
* reporting moved to ima_release_policy to notice parsing errors
* reporting both completed and failed status

Signed-off-by: Dmitry Kasatkin <[email protected]>
Signed-off-by: Mimi Zohar <[email protected]>

Author: Dmitry Kasatkin

security/integrity/ima/ima_fs.c

@@ -311,6 +311,8 @@ static int ima_open_policy(struct inode *inode, struct file *filp)
  */
 static int ima_release_policy(struct inode *inode, struct file *file)
 {
+	pr_info("IMA: policy update %s\n",
+		valid_policy ? "completed" : "failed");
 	if (!valid_policy) {
 		ima_delete_rules();
 		valid_policy = 1;