linux-kernel - Re: [PATCH 4/6] mm/gup: track gup-pinned pages

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Message-ID: <2c7f6914-71ab-c3a0-d043-b25e1d55a9ce@nvidia.com>
Date:   Wed, 20 Feb 2019 12:22:19 -0800
From:   John Hubbard <jhubbard@...dia.com>
To:     Ira Weiny <ira.weiny@...el.com>, <john.hubbard@...il.com>
CC:     Andrew Morton <akpm@...ux-foundation.org>, <linux-mm@...ck.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Christian Benvenuti <benve@...co.com>,
        Christoph Hellwig <hch@...radead.org>,
        Christopher Lameter <cl@...ux.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Chinner <david@...morbit.com>,
        Dennis Dalessandro <dennis.dalessandro@...el.com>,
        Doug Ledford <dledford@...hat.com>, Jan Kara <jack@...e.cz>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Jerome Glisse <jglisse@...hat.com>,
        Matthew Wilcox <willy@...radead.org>,
        Michal Hocko <mhocko@...nel.org>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Mike Marciniszyn <mike.marciniszyn@...el.com>,
        Ralph Campbell <rcampbell@...dia.com>,
        Tom Talpey <tom@...pey.com>,
        LKML <linux-kernel@...r.kernel.org>,
        <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH 4/6] mm/gup: track gup-pinned pages

On 2/20/19 11:24 AM, Ira Weiny wrote:
> On Sun, Feb 03, 2019 at 09:21:33PM -0800, john.hubbard@...il.com wrote:
>> From: John Hubbard <jhubbard@...dia.com>
> [snip]
>> + *
>> + * Locking: the lockless algorithm described in page_cache_gup_pin_speculative()
>> + * and page_cache_gup_pin_speculative() provides safe operation for
> 
> Did you mean:
> 
> page_cache_gup_pin_speculative and __ page_cache_get_speculative __?
> 
> Just found this while looking at your branch.
> 
> Sorry,
> Ira
> 

Hi Ira,

Yes, thanks for catching that. I've changed it in the git repo now, and it will
show up when the next spin of this patchset goes out.

thanks,
-- 
John Hubbard
NVIDIA