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Groups > linux.kernel > #1254105

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

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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@redhat.com>
---
 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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[RFC PATCH 0/7] audit: clean up audit queue handling Richard Guy Briggs <rgb@redhat.com> - 2015-10-22 21:00 +0200
  [RFC PATCH 2/7] audit: include auditd's threads in audit_log_start() wait exception Richard Guy Briggs <rgb@redhat.com> - 2015-10-22 21:00 +0200
  [RFC PATCH 1/7] audit: don't needlessly reset valid wait time Richard Guy Briggs <rgb@redhat.com> - 2015-10-22 21:00 +0200
  [RFC PATCH 4/7] audit: wake up threads if queue switched from limited to unlimited Richard Guy Briggs <rgb@redhat.com> - 2015-10-22 21:00 +0200
  [RFC PATCH 6/7] audit: wake up audit_backlog_wait queue when auditd goes away. Richard Guy Briggs <rgb@redhat.com> - 2015-10-22 21:00 +0200
  [RFC PATCH 7/7] audit: wake up kauditd_thread after auditd registers Richard Guy Briggs <rgb@redhat.com> - 2015-10-22 21:00 +0200
  [RFC PATCH 3/7] audit: allow systemd to use queue reserves Richard Guy Briggs <rgb@redhat.com> - 2015-10-22 21:00 +0200
  [RFC PATCH 5/7] audit: allow audit_cmd_mutex holders to use reserves Richard Guy Briggs <rgb@redhat.com> - 2015-10-22 21:00 +0200
  Re: [RFC PATCH 0/7] audit: clean up audit queue handling Paul Moore <pmoore@redhat.com> - 2015-10-27 19:50 +0100
    Re: [RFC PATCH 0/7] audit: clean up audit queue handling Richard Guy Briggs <rgb@redhat.com> - 2015-10-28 19:50 +0100
      Re: [RFC PATCH 0/7] audit: clean up audit queue handling Paul Moore <pmoore@redhat.com> - 2015-10-28 20:00 +0100

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