From: Kevin Wolf <kwolf@redhat.com>
To: Max Reitz <mreitz@redhat.com>
Cc: qemu-block@nongnu.org, qemu-devel@nongnu.org,
Fam Zheng <famz@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
John Snow <jsnow@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 13/18] block/mirror: Keep write perm for pending writes
Date: Tue, 10 Oct 2017 11:58:36 +0200 [thread overview]
Message-ID: <20171010095836.GG4177@dhcp-200-186.str.redhat.com> (raw)
In-Reply-To: <20170913181910.29688-14-mreitz@redhat.com>
Am 13.09.2017 um 20:19 hat Max Reitz geschrieben:
> The owner of the mirror BDS might retire its write permission; but there
> may still be pending mirror operations so the mirror BDS cannot
> necessarily retire its write permission for its child then.
>
> Signed-off-by: Max Reitz <mreitz@redhat.com>
I'm confused. The child of mirror_top_bs is the source, but don't mirror
operations only write to the target?
Kevin
next prev parent reply other threads:[~2017-10-10 9:58 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-13 18:18 [Qemu-devel] [PATCH 00/18] block/mirror: Add active-sync mirroring Max Reitz
2017-09-13 18:18 ` [Qemu-devel] [PATCH 01/18] block: Add BdrvDeletedStatus Max Reitz
2017-09-13 18:18 ` [Qemu-devel] [PATCH 02/18] block: BDS deletion during bdrv_drain_recurse Max Reitz
2017-09-18 3:44 ` Fam Zheng
2017-09-18 16:13 ` Max Reitz
2017-10-09 18:30 ` Max Reitz
2017-10-10 8:36 ` Kevin Wolf
2017-10-11 11:41 ` Max Reitz
2017-09-13 18:18 ` [Qemu-devel] [PATCH 03/18] blockjob: Make drained_{begin, end} public Max Reitz
2017-09-18 3:46 ` Fam Zheng
2017-09-13 18:18 ` [Qemu-devel] [PATCH 04/18] block/mirror: Pull out mirror_perform() Max Reitz
2017-09-18 3:48 ` Fam Zheng
2017-09-25 9:38 ` Vladimir Sementsov-Ogievskiy
2017-09-13 18:18 ` [Qemu-devel] [PATCH 05/18] block/mirror: Convert to coroutines Max Reitz
2017-09-18 6:02 ` Fam Zheng
2017-09-18 16:41 ` Max Reitz
2017-10-10 9:14 ` Kevin Wolf
2017-10-11 11:43 ` Max Reitz
2017-09-13 18:18 ` [Qemu-devel] [PATCH 06/18] block/mirror: Use CoQueue to wait on in-flight ops Max Reitz
2017-09-13 18:18 ` [Qemu-devel] [PATCH 07/18] block/mirror: Wait for in-flight op conflicts Max Reitz
2017-09-13 18:19 ` [Qemu-devel] [PATCH 08/18] block/mirror: Use source as a BdrvChild Max Reitz
2017-10-10 9:27 ` Kevin Wolf
2017-10-11 11:46 ` Max Reitz
2017-09-13 18:19 ` [Qemu-devel] [PATCH 09/18] block: Generalize should_update_child() rule Max Reitz
2017-09-13 18:19 ` [Qemu-devel] [PATCH 10/18] block/mirror: Make source the file child Max Reitz
2017-10-10 9:47 ` Kevin Wolf
2017-10-11 12:02 ` Max Reitz
2017-09-13 18:19 ` [Qemu-devel] [PATCH 11/18] hbitmap: Add @advance param to hbitmap_iter_next() Max Reitz
2017-09-25 15:38 ` Vladimir Sementsov-Ogievskiy
2017-09-25 20:40 ` Max Reitz
2017-09-13 18:19 ` [Qemu-devel] [PATCH 12/18] block/dirty-bitmap: Add bdrv_dirty_iter_next_area Max Reitz
2017-09-25 15:49 ` Vladimir Sementsov-Ogievskiy
2017-09-25 20:43 ` Max Reitz
2017-10-02 13:32 ` Vladimir Sementsov-Ogievskiy
2017-09-13 18:19 ` [Qemu-devel] [PATCH 13/18] block/mirror: Keep write perm for pending writes Max Reitz
2017-10-10 9:58 ` Kevin Wolf [this message]
2017-10-11 12:20 ` Max Reitz
2017-09-13 18:19 ` [Qemu-devel] [PATCH 14/18] block/mirror: Distinguish active from passive ops Max Reitz
2017-09-13 18:19 ` [Qemu-devel] [PATCH 15/18] block/mirror: Add active mirroring Max Reitz
2017-09-14 15:57 ` Stefan Hajnoczi
2017-09-16 13:58 ` Max Reitz
2017-09-18 10:06 ` [Qemu-devel] [Qemu-block] " Stefan Hajnoczi
2017-09-18 16:26 ` Max Reitz
2017-09-19 9:44 ` Stefan Hajnoczi
2017-09-19 9:57 ` Daniel P. Berrange
2017-09-20 14:56 ` Stefan Hajnoczi
2017-10-10 10:16 ` Kevin Wolf
2017-10-11 12:33 ` Max Reitz
2017-09-13 18:19 ` [Qemu-devel] [PATCH 16/18] block/mirror: Add copy mode QAPI interface Max Reitz
2017-09-13 18:19 ` [Qemu-devel] [PATCH 17/18] qemu-io: Add background write Max Reitz
2017-09-18 6:46 ` Fam Zheng
2017-09-18 17:53 ` Max Reitz
2017-09-19 8:03 ` Fam Zheng
2017-09-21 14:40 ` Max Reitz
2017-09-21 14:59 ` Fam Zheng
2017-09-21 15:03 ` Max Reitz
2017-09-13 18:19 ` [Qemu-devel] [PATCH 18/18] iotests: Add test for active mirroring Max Reitz
2017-09-18 6:45 ` Fam Zheng
2017-09-18 16:53 ` Max Reitz
2017-09-19 8:08 ` Fam Zheng
2017-09-14 15:42 ` [Qemu-devel] [PATCH 00/18] block/mirror: Add active-sync mirroring Stefan Hajnoczi
2017-09-16 14:02 ` Max Reitz
2017-09-18 10:02 ` [Qemu-devel] [Qemu-block] " Stefan Hajnoczi
2017-09-18 15:42 ` Max Reitz
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