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Re: [Qemu-block] [PATCH v4 00/12] block: Protect nested event loop with
From: |
Fam Zheng |
Subject: |
Re: [Qemu-block] [PATCH v4 00/12] block: Protect nested event loop with bdrv_drained_begin and bdrv_drained_end |
Date: |
Wed, 21 Oct 2015 09:18:05 +0800 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, 10/20 16:17, Kevin Wolf wrote:
> Am 20.10.2015 um 07:16 hat Fam Zheng geschrieben:
> > v4: Rebase on to master so fix the "bdrv_move_feature_fields" issue.
> >
> > v3: Call bdrv_drain unconditionally in bdrv_drained_begin.
> > Document the internal I/O implications between bdrv_drain_begin and end.
> >
> > The nested aio_poll()'s in block layer has a bug that new r/w requests from
> > ioeventfds and nbd exports are processed, which might break the caller's
> > semantics (qmp_transaction) or even pointers (bdrv_reopen).
>
> This series conflicts with the first part of Max' "BlockBackend and
> media" series which I already merged to my tree. I tried to resolve the
> conflict while applying, but while it doesn't seem really hard to do,
> it's a bit more involved than what I'm willing to do while applying.
>
> So I'm afraid I have to request another rebase.
Sure, thanks for taking a look!
Fam
- [Qemu-block] [PATCH v4 08/12] block: Add "drained begin/end" for transactional blockdev-backup, (continued)
- [Qemu-block] [PATCH v4 08/12] block: Add "drained begin/end" for transactional blockdev-backup, Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v4 09/12] block: Add "drained begin/end" for internal snapshot, Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v4 12/12] tests: Add test case for aio_disable_external, Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v4 03/12] dataplane: Mark host notifiers' client type as "external", Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v4 01/12] aio: Add "is_external" flag for event handlers, Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v4 02/12] nbd: Mark fd handlers client type as "external", Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v4 11/12] qed: Implement .bdrv_drain, Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v4 04/12] aio: introduce aio_{disable, enable}_external, Fam Zheng, 2015/10/20
- [Qemu-block] [PATCH v4 10/12] block: Introduce BlockDriver.bdrv_drain callback, Fam Zheng, 2015/10/20
- Re: [Qemu-block] [PATCH v4 00/12] block: Protect nested event loop with bdrv_drained_begin and bdrv_drained_end, Kevin Wolf, 2015/10/20
- Re: [Qemu-block] [PATCH v4 00/12] block: Protect nested event loop with bdrv_drained_begin and bdrv_drained_end,
Fam Zheng <=