linux-kernel - Re: [RFC PATCH v4 05/13] workqueue, ktask: renice helper threads to prevent starvation

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Message-ID: <20181120163319.GW2509588@devbig004.ftw2.facebook.com>
Date:   Tue, 20 Nov 2018 08:33:19 -0800
From:   Tejun Heo <tj@...nel.org>
To:     Daniel Jordan <daniel.m.jordan@...cle.com>
Cc:     linux-mm@...ck.org, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, aarcange@...hat.com,
        aaron.lu@...el.com, akpm@...ux-foundation.org,
        alex.williamson@...hat.com, bsd@...hat.com,
        darrick.wong@...cle.com, dave.hansen@...ux.intel.com,
        jgg@...lanox.com, jwadams@...gle.com, jiangshanlai@...il.com,
        mhocko@...nel.org, mike.kravetz@...cle.com,
        Pavel.Tatashin@...rosoft.com, prasad.singamsetty@...cle.com,
        rdunlap@...radead.org, steven.sistare@...cle.com,
        tim.c.chen@...el.com, vbabka@...e.cz
Subject: Re: [RFC PATCH v4 05/13] workqueue, ktask: renice helper threads to
 prevent starvation

On Mon, Nov 19, 2018 at 08:45:54AM -0800, Daniel Jordan wrote:
> So instead of flush_work_at_nice, how about this?:
> 
> void renice_work_sync(work_struct *work, long nice);

Wouldn't renice_or_cancel make more sense?

Thanks.

-- 
tejun