linux-kernel - Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in wake_up_page

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Date:   Thu, 14 Sep 2017 09:50:53 -0700
From:   Tim Chen <tim.c.chen@...ux.intel.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     "Liang, Kan" <kan.liang@...el.com>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...e.hu>, Andi Kleen <ak@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Johannes Weiner <hannes@...xchg.org>, Jan Kara <jack@...e.cz>,
        Christopher Lameter <cl@...ux.com>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        linux-mm <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2 v2] sched/wait: Introduce lock breaker in
 wake_up_page_bit

On 09/13/2017 07:27 PM, Linus Torvalds wrote:
> On Wed, Sep 13, 2017 at 7:12 PM, Tim Chen <tim.c.chen@...ux.intel.com> wrote:
>>
>> BTW, will you be merging these 2 patches in 4.14?
> 
> Yes, and thanks for reminding me.
> 
> In fact, would you mind sending me the latest versions, rather than me
> digging them out of the disaster area that is my mailbox and possibly
> picking an older version?
> 
>                  Linus
> 

Attached the two patches that you have updated to sync with your other
page wait queue clean up and sent to Kan and me:
https://marc.info/?l=linux-kernel&m=150393893927105&w=2

Kan tested this before so it should be still good. 
I checked that it applied cleanly on latest master.

Thanks.

Tim

View attachment "0001-sched-wait-Break-up-long-wake-list-walk.patch" of type "text/x-patch" (7005 bytes)

View attachment "0002-sched-wait-Introduce-wakeup-boomark-in-wake_up_page_.patch" of type "text/x-patch" (3761 bytes)