linux-kernel - [PATCH v3 0/2] Fix persistent grants negotiation with a behavior change

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Date:   Fri, 15 Jul 2022 17:55:19 +0000
From:   SeongJae Park <sj@...nel.org>
To:     roger.pau@...rix.com
Cc:     axboe@...nel.dk, boris.ostrovsky@...cle.com, jgross@...e.com,
        olekstysh@...il.com, andrii.chepurnyi82@...il.com,
        mheyne@...zon.de, xen-devel@...ts.xenproject.org,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org, SeongJae Park <sj@...nel.org>
Subject: [PATCH v3 0/2] Fix persistent grants negotiation with a behavior change

The first patch of this patchset fixes 'feature_persistent' parameter
handling in 'blkback' to respect the frontend's persistent grants
support always.  The fix makes a behavioral change, so the second patch
makes the counterpart of 'blkfront' to consistently follow the behavior
change.

Changes from v2
(https://lore.kernel.org/xen-devel/20220714224410.51147-1-sj@kernel.org/)
- Keep the behavioral change of v1
- Update blkfront's counterpart to follow the changed behavior
- Update documents for the changed behavior

Changes from v1
(https://lore.kernel.org/xen-devel/20220106091013.126076-1-mheyne@amazon.de/)
- Avoid the behavioral change
  (https://lore.kernel.org/xen-devel/20220121102309.27802-1-sj@kernel.org/)
- Rebase on latest xen/tip/linux-next
- Re-work by SeongJae Park <sj@...nel.org>
- Cc stable@



Maximilian Heyne (1):
  xen, blkback: fix persistent grants negotiation

SeongJae Park (1):
  xen-blkfront: Apply 'feature_persistent' parameter when connect

 Documentation/ABI/testing/sysfs-driver-xen-blkback  | 2 +-
 Documentation/ABI/testing/sysfs-driver-xen-blkfront | 2 +-
 drivers/block/xen-blkback/xenbus.c                  | 9 +++------
 drivers/block/xen-blkfront.c                        | 4 +---
 4 files changed, 6 insertions(+), 11 deletions(-)

-- 
2.25.1