NetLabel: SELinux cleanups
This patch does a lot of cleanup in the SELinux NetLabel support code. A
summary of the changes include:
* Use RCU locking for the NetLabel state variable in the skk_security_struct
instead of using the inode_security_struct mutex.
* Remove unnecessary parameters in selinux_netlbl_socket_post_create().
* Rename selinux_netlbl_sk_clone_security() to
selinux_netlbl_sk_security_clone() to better fit the other NetLabel
sk_security functions.
* Improvements to selinux_netlbl_inode_permission() to help reduce the cost of
the common case.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index ef2267f..91b88f0 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -23,6 +23,7 @@
#include <linux/fs.h>
#include <linux/binfmts.h>
#include <linux/in.h>
+#include <linux/spinlock.h>
#include "flask.h"
#include "avc.h"
@@ -108,6 +109,7 @@
NLBL_REQUIRE,
NLBL_LABELED,
} nlbl_state;
+ spinlock_t nlbl_lock; /* protects nlbl_state */
#endif
};
