re: (resend) [PATCH [linux-4.14.y]] dm cache: submit writethrough writes in parallel to origin and cache

From: John Donnelly
Date: Mon Jul 27 2020 - 15:39:02 EST




> On Jul 27, 2020, at 2:18 PM, Sasha Levin <sashal@xxxxxxxxxx> wrote:
>
> On Mon, Jul 27, 2020 at 11:00:14AM -0400, Mike Snitzer wrote:
>> This mail needs to be saent to stable@xxxxxxxxxxxxxxx (now cc'd).
>>
>> Greg et al: please backport 2df3bae9a6543e90042291707b8db0cbfbae9ee9
>
> Hm, what's the issue that this patch addresses? It's not clear from the
> commit message.
>
> --
> Thanks,
> Sasha

HI Sasha ,

In an off-line conversation I had with Mike , he indicated that :


commit 1b17159e52bb31f982f82a6278acd7fab1d3f67b
Author: Mike Snitzer <snitzer@xxxxxxxxxx>
Date: Fri Feb 28 18:00:53 2020 -0500

dm bio record: save/restore bi_end_io and bi_integrity


commit 248aa2645aa7fc9175d1107c2593cc90d4af5a4e
Author: Mike Snitzer <snitzer@xxxxxxxxxx>
Date: Fri Feb 28 18:11:53 2020 -0500

dm integrity: use dm_bio_record and dm_bio_restore


Were picked up in "stable" kernels picked up even though
neither was marked for stable@xxxxxxxxxxxxxxx

Adding this missing commit :

2df3bae9a6543e90042291707b8db0cbfbae9ee9


Completes the series


Thank you ,


John.