Commit 01478d7d authored by Richard Guy Briggs's avatar Richard Guy Briggs Committed by Eric Paris
Browse files

audit: use atomic_t to simplify audit_serial() 



Since there is already a primitive to do this operation in the atomic_t, use it
to simplify audit_serial().

Signed-off-by: default avatarRichard Guy Briggs <rgb@redhat.com>
parent 6eed9b26

kernel/audit.c

+2 −12
Original line number Diff line number Diff line
@@ -1301,19 +1301,9 @@ static struct audit_buffer * audit_buffer_alloc(struct audit_context *ctx, 
 */

unsigned int audit_serial(void)

{

	static DEFINE_SPINLOCK(serial_lock);

	static unsigned int serial = 0;

	static atomic_t serial = ATOMIC_INIT(0);



	unsigned long flags;

	unsigned int ret;



	spin_lock_irqsave(&serial_lock, flags);

	do {

		ret = ++serial;

	} while (unlikely(!ret));

	spin_unlock_irqrestore(&serial_lock, flags);



	return ret;

	return atomic_add_return(1, &serial);

}



static inline void audit_get_stamp(struct audit_context *ctx,