linux-kernel - Re: [PATCH V2 2/2] mm/highmem: Lift memcpy_[to|from]

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Message-ID: <CAPcyv4h6mxo3vOU9r6ZcC1jUL_FCCEjmJ8dfmgYccNVJrGi3hQ@mail.gmail.com>
Date:   Wed, 9 Dec 2020 12:19:57 -0800
From:   Dan Williams <dan.j.williams@...el.com>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     Ira Weiny <ira.weiny@...el.com>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Dave Hansen <dave.hansen@...el.com>,
        Christoph Hellwig <hch@...radead.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Eric Biggers <ebiggers@...nel.org>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH V2 2/2] mm/highmem: Lift memcpy_[to|from]_page to core

On Wed, Dec 9, 2020 at 12:14 PM Matthew Wilcox <willy@...radead.org> wrote:
[..]
> If we put in into a separate patch, someone will suggest backing out the
> patch which tells us that there's a problem.  You know, like this guy ...
> https://lore.kernel.org/linux-mm/CAPcyv4jNVroYmirzKw_=CsEixOEACdL3M1Wc4xjd_TFv3h+o8Q@mail.gmail.com/

...and that person, like in this case, will be told 'no' and go on to
find / fix the real problem.