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

From: Sasha Levin
Date: Mon Jul 27 2020 - 16:17:04 EST

On Mon, Jul 27, 2020 at 02:38:52PM -0500, John Donnelly wrote:

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.


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 :


Completes the series

Should we just revert those two commits instead if they're not needed?