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-rw-r--r--kernel/audit.c14
1 files changed, 2 insertions, 12 deletions
diff --git a/kernel/audit.c b/kernel/audit.c
index 8a82d481393d..7aef7cbd7bcf 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1301,19 +1301,9 @@ err:
*/
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,