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From: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
To: paul@paul-moore.com, eparis@redhat.com,
	linux-kernel@vger.kernel.org, audit@vger.kernel.org
Cc: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Subject: [PATCH v2 0/5] audit: refactors and fixes for potential deadlocks
Date: Thu, 11 May 2023 05:21:11 +0000	[thread overview]
Message-ID: <20230511052116.19452-1-eiichi.tsukata@nutanix.com> (raw)

This patchset consists of the following refactors and fixes for
potential deadlocks.

  Patch1-3: Refactorings and a small fix preferable for following deadlock fixes
  Patch4: Fix for deadlock caused by wait/wake_up race in @audit_queue full
  Patch5: Fix for deadlock caused by missing wake_up

v1->v2:
  - wait_for_kauditd(): returns 0 if @audit_queue is not full
  - Add another fix for deadlock caused by missing wake_up

Eiichi Tsukata (5):
  audit: refactor queue full checks
  audit: account backlog waiting time in audit_receive()
  audit: convert DECLARE_WAITQUEUE to DEFINE_WAIT
  audit: check if audit_queue is full after prepare_to_wait_exclusive()
  audit: do not use exclusive wait in audit_receive()

 kernel/audit.c | 78 ++++++++++++++++++++++++++++++++------------------
 1 file changed, 50 insertions(+), 28 deletions(-)

-- 
2.40.0


             reply	other threads:[~2023-05-11  5:22 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-11  5:21 Eiichi Tsukata [this message]
2023-05-11  5:21 ` [PATCH v2 1/5] audit: refactor queue full checks Eiichi Tsukata
2023-05-19 20:54   ` Paul Moore
2023-05-22  4:19     ` Eiichi Tsukata
2023-05-11  5:21 ` [PATCH v2 2/5] audit: account backlog waiting time in audit_receive() Eiichi Tsukata
2023-05-19 20:54   ` Paul Moore
2023-05-22  4:22     ` Eiichi Tsukata
2023-05-23 20:55       ` Paul Moore
2023-05-11  5:21 ` [PATCH v2 3/5] audit: convert DECLARE_WAITQUEUE to DEFINE_WAIT Eiichi Tsukata
2023-05-19 20:54   ` Paul Moore
2023-05-11  5:21 ` [PATCH v2 4/5] audit: check if audit_queue is full after prepare_to_wait_exclusive() Eiichi Tsukata
2023-05-19 20:54   ` Paul Moore
2023-05-22  4:28     ` Eiichi Tsukata
2023-05-23 21:02       ` Paul Moore
2023-05-11  5:21 ` [PATCH v2 5/5] audit: do not use exclusive wait in audit_receive() Eiichi Tsukata
2023-05-19 20:54   ` Paul Moore
2023-05-22  4:44     ` Eiichi Tsukata
2023-05-23  3:58       ` Eiichi Tsukata
2023-05-23 21:07         ` Paul Moore

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