linux-kernel - Re: [PATCH 0/7 V6] workqueue: fix hoplug things

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Message-ID: <20120908175007.GF10788@dhcp-172-17-108-109.mtv.corp.google.com>
Date:	Sat, 8 Sep 2012 10:50:07 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Lai Jiangshan <eag0628@...il.com>
Cc:	Lai Jiangshan <laijs@...fujitsu.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/7 V6] workqueue: fix hoplug things

Hello, Lai.

On Sun, Sep 09, 2012 at 01:46:59AM +0800, Lai Jiangshan wrote:
> > * Instead of MANAGING, add pool->manager.
> >
> > * Fix the idle depletion bug by using pool->manager for exclusion and
> >   always grabbing pool->manager_mutex.  Hotplug can use pool->manager
> >   to schedule rebind work (or UNBIND) to the manager.
> >
> > Thoughts?
> 
> Don't need.  my worry is wrong.

So, your worry was incorrect and the above is what we're gonna do, no?

> > Also, can you please base the fix patches on top of wq/for-3.6-fixes?
> > It's getting quite confusing.
> >
> >   git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git for-3.6-fixes
> 
> I base on wq/for-3.7 of several days ago.
> 
> I can change the base, but which blanch should patch5,6,7 base on?

Please create two patches, first introducing pool->manager_mutex and
second fixing the depletion bug by making manager always grab
manager_mutex on top of wq/for-3.6-fixes.  For the rest of the series,
please wait for me to merge the for-3.6-fixes into for-3.7 and base on
top of them and *please* stop sending restructuring patches before the
fixes are settled.  It's wasting time for both of us.

Thanks.

-- 
tejun
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