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Date:   Tue, 15 Feb 2022 09:05:38 -0800
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From:   Bart Van Assche <bvanassche@acm.org>
Subject: Re: [syzbot] possible deadlock in worker_thread
To:     Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
        Haakon Bugge <haakon.bugge@oracle.com>
Cc:     Tejun Heo <tj@kernel.org>,
        syzbot <syzbot+831661966588c802aae9@syzkaller.appspotmail.com>,
        Jason Gunthorpe <jgg@ziepe.ca>,
        LKML <linux-kernel@vger.kernel.org>,
        OFED mailing list <linux-rdma@vger.kernel.org>,
        "syzkaller-bugs@googlegroups.com" <syzkaller-bugs@googlegroups.com>,
        Lai Jiangshan <jiangshanlai@gmail.com>
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On 2/15/22 04:48, Tetsuo Handa wrote:
> I do not want to do like
> 
> -	system_wq = alloc_workqueue("events", 0, 0);
> +	system_wq = alloc_workqueue("events", __WQ_SYSTEM_WIDE, 0);
> 
> because the intent of this change is to ask developers to create their own WQs.

I want more developers to use the system-wide workqueues since that 
reduces memory usage. That matters for embedded devices running Linux.

Thanks,

Bart.