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Re: [Qemu-devel] [PATCH v7 05/10] block: Introduce "drained begin/end" A
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] [PATCH v7 05/10] block: Introduce "drained begin/end" API |
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Date: |
Fri, 23 Oct 2015 16:24:52 +0100 |
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User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Fri, Oct 23, 2015 at 11:08:09AM +0800, Fam Zheng wrote:
> +/**
> + * bdrv_drained_begin:
> + *
> + * Begin a quiesced section for exclusive access to the BDS, by disabling
> + * external request sources including NBD server and device model. Note that
> + * this doesn't block timers or coroutines from submitting more requests,
> which
> + * means block_job_pause is still necessary.
How is the 'transaction' command protected from block jobs? Maybe I
missed a block_job_pause() call that you added in this series...
- [Qemu-devel] [PATCH v7 00/10] block: Protect nested event loop with bdrv_drained_begin and bdrv_drained_end, Fam Zheng, 2015/10/22
- [Qemu-devel] [PATCH v7 02/10] nbd: Mark fd handlers client type as "external", Fam Zheng, 2015/10/22
- [Qemu-devel] [PATCH v7 03/10] dataplane: Mark host notifiers' client type as "external", Fam Zheng, 2015/10/22
- [Qemu-devel] [PATCH v7 01/10] aio: Add "is_external" flag for event handlers, Fam Zheng, 2015/10/22
- [Qemu-devel] [PATCH v7 04/10] aio: introduce aio_{disable, enable}_external, Fam Zheng, 2015/10/22
- [Qemu-devel] [PATCH v7 05/10] block: Introduce "drained begin/end" API, Fam Zheng, 2015/10/22
- [Qemu-devel] [PATCH v7 06/10] block: Add "drained begin/end" for transactional external snapshot, Fam Zheng, 2015/10/22
- [Qemu-devel] [PATCH v7 07/10] block: Add "drained begin/end" for transactional backup, Fam Zheng, 2015/10/22
- [Qemu-devel] [PATCH v7 08/10] block: Add "drained begin/end" for transactional blockdev-backup, Fam Zheng, 2015/10/22
- [Qemu-devel] [PATCH v7 09/10] block: Add "drained begin/end" for internal snapshot, Fam Zheng, 2015/10/22
- [Qemu-devel] [PATCH v7 10/10] tests: Add test case for aio_disable_external, Fam Zheng, 2015/10/22
- Re: [Qemu-devel] [PATCH v7 00/10] block: Protect nested event loop with bdrv_drained_begin and bdrv_drained_end, Kevin Wolf, 2015/10/23
- Re: [Qemu-devel] [PATCH v7 00/10] block: Protect nested event loop with bdrv_drained_begin and bdrv_drained_end, Stefan Hajnoczi, 2015/10/23