From: Kevin Wolf <kwolf@redhat.com>
To: "Denis V. Lunev" <den@openvz.org>
Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org,
Stefan Hajnoczi <stefanha@redhat.com>,
Max Reitz <mreitz@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v2 0/3] potentially broken drive-mirror/drive-backup in bdrv_co_discard
Date: Fri, 17 Jun 2016 13:25:58 +0200 [thread overview]
Message-ID: <20160617112558.GE5431@noname.redhat.com> (raw)
In-Reply-To: <1466093381-6120-1-git-send-email-den@openvz.org>
Am 16.06.2016 um 18:09 hat Denis V. Lunev geschrieben:
> Actually I have found this problem running iotest 132 for active async
> mirror I have sent yesturday. Anyway, the problem is actual for current
> backup/mirror implementation.
>
> bdrv_co_discard must mark areas dirty after writing zeroes, it must call
> before_write_notifier chain to push underlying data to backup and it also
> must properly fill tracked request information.
>
> Changes from v1:
> - fixed problem in patch as pointed out by Vova
> - ported to current (was made on top of active block mirror)
> - minor spelling changes in commit messages
>
> Signed-off-by: Denis V. Lunev <den@openvz.org>
> Reviewed-by: Vladimir Sementsov-Ogievskiy<vsementsov@virtuozzo.com>
> Reviewed-by: Fam Zheng <famz@redhat.com>
> CC: Stefan Hajnoczi <stefanha@redhat.com>
> CC: Kevin Wolf <kwolf@redhat.com>
> CC: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
prev parent reply other threads:[~2016-06-17 11:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-16 16:09 [Qemu-devel] [PATCH v2 0/3] potentially broken drive-mirror/drive-backup in bdrv_co_discard Denis V. Lunev
2016-06-16 16:09 ` [Qemu-devel] [PATCH 1/3] block: fixed BdrvTrackedRequest filling " Denis V. Lunev
2016-06-16 17:39 ` Eric Blake
2016-06-16 16:09 ` [Qemu-devel] [PATCH 2/3] block: fix race in bdrv_co_discard with drive-mirror Denis V. Lunev
2016-06-16 16:09 ` [Qemu-devel] [PATCH 3/3] block: process before_write_notifiers in bdrv_co_discard Denis V. Lunev
2016-06-17 10:33 ` [Qemu-devel] [Qemu-block] [PATCH v2 0/3] potentially broken drive-mirror/drive-backup " Stefan Hajnoczi
2016-06-17 11:25 ` Kevin Wolf [this message]
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