linux-kernel - [PATCH V4 0/4] workqueue: Factor the way to assign rescuer work

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20251125063617.671199-1-jiangshanlai@gmail.com>
Date: Tue, 25 Nov 2025 14:36:13 +0800
From: Lai Jiangshan <jiangshanlai@...il.com>
To: linux-kernel@...r.kernel.org
Cc: Tejun Heo <tj@...nel.org>,
	ying chen <yc1082463@...il.com>,
	Lai Jiangshan <jiangshan.ljs@...group.com>
Subject: [PATCH V4 0/4] workqueue: Factor the way to assign rescuer work

From: Lai Jiangshan <jiangshan.ljs@...group.com>

Previously, the rescuer scanned for all matching work items at once and
processed them within a single rescuer thread, which could cause one
blocking work item to stall all others.

Make the rescuer process work items one-by-one instead of slurping all
matches in a single pass using a cursor.

Changed from V3:
  check memory pressure
  update comments
  rename @limited to @throttled

v3: https://lore.kernel.org/lkml/20251121145720.342467-1-jiangshanlai@gmail.com/

Lai Jiangshan (4):
  workqueue: Loop over in rescuer until all its work is done
  workqueue: Process rescuer work items one-by-one using a cursor
  workqueue: Limit number of processed works in rescuer per turn
  workqueue: Process extra works in rescuer when there are no more to
    rescue

 kernel/workqueue.c | 141 ++++++++++++++++++++++++++++++++++-----------
 1 file changed, 108 insertions(+), 33 deletions(-)

-- 
2.19.1.6.gb485710b