apparmor: fix update the mtime of the profile file on replacement

Signed-off-by: NJohn Johansen <john.johansen@canonical.com>
Acked-by: NSeth Arnold <seth.arnold@canonical.com>

security/apparmor/apparmorfs.c

@@ -379,6 +379,8 @@ void __aa_fs_profile_migrate_dents(struct aa_profile *old,
 
 	for (i = 0; i < AAFS_PROF_SIZEOF; i++) {
 		new->dents[i] = old->dents[i];
+		if (new->dents[i])
+			new->dents[i]->d_inode->i_mtime = CURRENT_TIME;
 		old->dents[i] = NULL;
 	}
 }