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Subject: Re: (resend) [PATCH [linux-4.14.y]] dm cache: submit writethrough
 writes in parallel to origin and cache
From:   John Donnelly <john.p.donnelly@oracle.com>
In-Reply-To: <20200730052127.GA3860556@kroah.com>
Date:   Thu, 30 Jul 2020 09:40:32 -0500
Cc:     Mike Snitzer <snitzer@redhat.com>, stable@vger.kernel.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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To:     Greg KH <gregkh@linuxfoundation.org>
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> On Jul 30, 2020, at 12:21 AM, Greg KH <gregkh@linuxfoundation.org> =
wrote:
>=20
> On Wed, Jul 29, 2020 at 06:45:46PM -0500, John Donnelly wrote:
>>=20
>>=20
>> On 7/29/20 9:16 AM, Mike Snitzer wrote:
>>> On Wed, Jul 29 2020 at  7:55am -0400,
>>> Greg KH <gregkh@linuxfoundation.org> wrote:
>>>=20
>>>> On Wed, Jul 29, 2020 at 01:51:19PM +0200, Greg KH wrote:
>>>>> On Mon, Jul 27, 2020 at 11:00:14AM -0400, Mike Snitzer wrote:
>>>>>> This mail needs to be saent to stable@vger.kernel.org (now cc'd).
>>>>>>=20
>>>>>> Greg et al: please backport =
2df3bae9a6543e90042291707b8db0cbfbae9ee9
>>>>>=20
>>>>> Now backported, thanks.
>>>>=20
>>>> Nope, it broke the build, I need something that actually works :)
>>>>=20
>>>=20
>>> OK, I'll defer to John Donnelly to get back with you (and rest of
>>> stable@).  He is more invested due to SUSE also having this issue.  =
I
>>> can put focus to it if John cannot sort this out.
>>>=20
>>> Mike
>>>=20
>>=20
>>=20
>> Hi.
>>=20
>>=20
>> Thank you for reaching out.
>>=20
>> What specifically is broken? . If it that applying
>> 2df3bae9a6543e90042291707b8db0cbfbae9ee9 to 4.14.y is failing?
>=20
> yes, try it yourself and see!

 Hi .=20

 Yes . =20

  2df3bae9a6543e90042291707b8db0cbfbae9ee9

 Needs refactored to work in 4.14.y (now .190) as there is a conflict in =
arguments as noted in my original submittal ;-) .=20
 I also noticed there are warning to functions " defined but not used =
[-Wunused-function] =E2=80=9C  too.

 Do you want another PATCH v2 message  in a new email thread,  or can I  =
append it to this this thread ?

Please advice.

Thanks.
JD.


=20