linux-kernel - Re: [PATCH 13/13] libnvdimm, namespace: Publish page structure init state / control

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Message-ID: <CAPcyv4h973nANXOUFe9rE7pn0tKxy=Csh=XYsyA6V_bPF0eRAw@mail.gmail.com>
Date:   Thu, 5 Jul 2018 13:34:01 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Johannes Thumshirn <jthumshirn@...e.de>,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Jeff Moyer <jmoyer@...hat.com>, Christoph Hellwig <hch@....de>,
        linux-nvdimm <linux-nvdimm@...ts.01.org>,
        Linux MM <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 13/13] libnvdimm, namespace: Publish page structure init
 state / control

On Thu, Jul 5, 2018 at 1:24 PM, Andrew Morton <akpm@...ux-foundation.org> wrote:
> On Thu, 5 Jul 2018 16:49:41 +0200 Johannes Thumshirn <jthumshirn@...e.de> wrote:
>
>> On Thu, Jul 05, 2018 at 07:46:05AM -0700, Dan Williams wrote:
>> > ...but that also allows 'echo "syncAndThenSomeGarbage" >
>> > /sys/.../memmap_state' to succeed.
>>
>> Yep it does :-(.
>>
>> Damn
>
> sysfs_streq()

Nice... /me stares down a long list of needed cleanups in the
libnvdimm sysfs implementation with that gem.