linux-kernel - Re: [PATCH v3 3/5] workqueue: Add interface for user-defined workqueue lockdep map

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Message-ID: <ZrusGBG7/EkNlbsk@DUT025-TGLU.fm.intel.com>
Date: Tue, 13 Aug 2024 18:55:20 +0000
From: Matthew Brost <matthew.brost@...el.com>
To: Tejun Heo <tj@...nel.org>
CC: <intel-xe@...ts.freedesktop.org>, <dri-devel@...ts.freedesktop.org>,
	<linux-kernel@...r.kernel.org>, <jiangshanlai@...il.com>,
	<christian.koenig@....com>, <ltuikov89@...il.com>, <daniel@...ll.ch>
Subject: Re: [PATCH v3 3/5] workqueue: Add interface for user-defined
 workqueue lockdep map

On Tue, Aug 13, 2024 at 08:52:26AM -1000, Tejun Heo wrote:
> On Fri, Aug 09, 2024 at 03:28:25PM -0700, Matthew Brost wrote:
> > Add an interface for a user-defined workqueue lockdep map, which is
> > helpful when multiple workqueues are created for the same purpose. This
> > also helps avoid leaking lockdep maps on each workqueue creation.
> > 
> > v2:
> >  - Add alloc_workqueue_lockdep_map (Tejun)
> > v3:
> >  - Drop __WQ_USER_OWNED_LOCKDEP (Tejun)
> >  - static inline alloc_ordered_workqueue_lockdep_map (Tejun)
> > 
> > Cc: Tejun Heo <tj@...nel.org>
> > Cc: Lai Jiangshan <jiangshanlai@...il.com>
> > Signed-off-by: Matthew Brost <matthew.brost@...el.com>
> 
> 1-3 look fine to me. Would applying them to wq/for-6.12 and pulling them
> from the dri tree work?
> 

Yes, I wanted to get this into 6.12 as I believe we are removing
forceprobe for our driver and it would be good to have this in for that.

Any idea what this is about though [1]?

Matt

[1] https://patchwork.freedesktop.org/patch/607769/?series=136701&rev=3#comment_1105151

> Thanks.
> 
> -- 
> tejun