[PATCH 2/6] audit: flatten kauditd_thread wait queue code
The wait queue control code in kauditd_thread() was nested deeper than
necessary. The function has been flattened for better legibility.
Signed-off-by: Richard Guy Briggs <rbriggs(a)redhat.com>
---
This is a code clean up in preparation to add a multicast netlink socket to
kaudit for read-only userspace clients such as systemd, in addition to the
bidirectional audit userspace client.
kernel/audit.c | 26 +++++++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)
diff --git a/kernel/audit.c b/kernel/audit.c
index 4bf486c..1531efb 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -458,10 +458,11 @@ static void flush_hold_queue(void)
static int kauditd_thread(void *dummy)
{
- struct sk_buff *skb;
-
set_freezable();
while (!kthread_should_stop()) {
+ struct sk_buff *skb;
+ DECLARE_WAITQUEUE(wait, current);
+
flush_hold_queue();
skb = skb_dequeue(&audit_skb_queue);
@@ -471,19 +472,18 @@ static int kauditd_thread(void *dummy)
kauditd_send_skb(skb);
else
audit_printk_skb(skb);
- } else {
- DECLARE_WAITQUEUE(wait, current);
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&kauditd_wait, &wait);
-
- if (!skb_queue_len(&audit_skb_queue)) {
- try_to_freeze();
- schedule();
- }
+ continue;
+ }
+ set_current_state(TASK_INTERRUPTIBLE);
+ add_wait_queue(&kauditd_wait, &wait);
- __set_current_state(TASK_RUNNING);
- remove_wait_queue(&kauditd_wait, &wait);
+ if (!skb_queue_len(&audit_skb_queue)) {
+ try_to_freeze();
+ schedule();
}
+
+ __set_current_state(TASK_RUNNING);
+ remove_wait_queue(&kauditd_wait, &wait);
}
return 0;
}
--
1.8.0.2