[RFC PATCH 4/7] audit: wake up threads if queue switched from limited to unlimited

From: Richard Guy Briggs
Date: Thu Oct 22 2015 - 14:56:46 EST


If the audit_backlog_limit is changed from a limited value to an
unlimited value (zero) while the queue was overflowed, wake up the
audit_backlog_wait queue to allow those processes to continue.

Signed-off-by: Richard Guy Briggs <rgb@xxxxxxxxxx>
---
kernel/audit.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index 384a1a1..02a5ec0 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -523,7 +523,8 @@ static int kauditd_thread(void *dummy)
skb = skb_dequeue(&audit_skb_queue);

if (skb) {
- if (skb_queue_len(&audit_skb_queue) <= audit_backlog_limit)
+ if (!audit_backlog_limit ||
+ (skb_queue_len(&audit_skb_queue) <= audit_backlog_limit))
wake_up(&audit_backlog_wait);
if (audit_pid)
kauditd_send_skb(skb);
--
1.7.1

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