[0/2] rbd: avoid fast-diff corruption in snapshot-based mirroring

Message ID	20230605202715.968962-1-idryomov@gmail.com
Headers	show Return-Path: <ceph-devel-owner@vger.kernel.org> From: Ilya Dryomov <idryomov@gmail.com> To: ceph-devel@vger.kernel.org Cc: Dongsheng Yang <dongsheng.yang@easystack.cn> Subject: [PATCH 0/2] rbd: avoid fast-diff corruption in snapshot-based mirroring Date: Mon, 5 Jun 2023 22:27:13 +0200 Message-Id: <20230605202715.968962-1-idryomov@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	rbd: avoid fast-diff corruption in snapshot-based mirroring \| expand [0/2] rbd: avoid fast-diff corruption in snapshot-based mirroring [1/2] rbd: move RBD_OBJ_FLAG_COPYUP_ENABLED flag setting

Message ID

20230605202715.968962-1-idryomov@gmail.com

Headers

From: Ilya Dryomov <idryomov@gmail.com>
To: ceph-devel@vger.kernel.org
Cc: Dongsheng Yang <dongsheng.yang@easystack.cn>
Subject: [PATCH 0/2] rbd: avoid fast-diff corruption in snapshot-based
 mirroring
Date: Mon,  5 Jun 2023 22:27:13 +0200
Message-Id: <20230605202715.968962-1-idryomov@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Series

rbd: avoid fast-diff corruption in snapshot-based mirroring | expand

Message

Ilya Dryomov June 5, 2023, 8:27 p.m. UTC

Hello,

This fixes a potential data corruption in the destination image in
differential backup and especially snapshot-based mirroring use cases
with fast-diff enabled.

Thanks,

                Ilya


Ilya Dryomov (2):
  rbd: move RBD_OBJ_FLAG_COPYUP_ENABLED flag setting
  rbd: get snapshot context after exclusive lock is ensured to be held

 drivers/block/rbd.c | 62 ++++++++++++++++++++++++++++++++-------------
 1 file changed, 44 insertions(+), 18 deletions(-)