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Re: [Qemu-block] [PATCH v2 09/17] block-backend: Add .drained_poll callb
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From: |
Max Reitz |
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Subject: |
Re: [Qemu-block] [PATCH v2 09/17] block-backend: Add .drained_poll callback |
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Date: |
Thu, 13 Sep 2018 17:01:26 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0 |
On 13.09.18 14:52, Kevin Wolf wrote:
> A bdrv_drain operation must ensure that all parents are quiesced, this
> includes BlockBackends. Otherwise, callbacks called by requests that are
> completed on the BDS layer, but not quite yet on the BlockBackend layer
> could still create new requests.
>
> Signed-off-by: Kevin Wolf <address@hidden>
> Reviewed-by: Fam Zheng <address@hidden>
> ---
> block/block-backend.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
Reviewed-by: Max Reitz <address@hidden>
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- [Qemu-block] [PATCH v2 05/17] test-blockjob: Acquire AioContext around job_cancel_sync(), (continued)
- [Qemu-block] [PATCH v2 05/17] test-blockjob: Acquire AioContext around job_cancel_sync(), Kevin Wolf, 2018/09/13
- [Qemu-block] [PATCH v2 06/17] job: Use AIO_WAIT_WHILE() in job_finish_sync(), Kevin Wolf, 2018/09/13
- [Qemu-block] [PATCH v2 08/17] block: Add missing locking in bdrv_co_drain_bh_cb(), Kevin Wolf, 2018/09/13
- [Qemu-block] [PATCH v2 09/17] block-backend: Add .drained_poll callback, Kevin Wolf, 2018/09/13
- Re: [Qemu-block] [PATCH v2 09/17] block-backend: Add .drained_poll callback,
Max Reitz <=
- [Qemu-block] [PATCH v2 07/17] test-bdrv-drain: Test AIO_WAIT_WHILE() in completion callback, Kevin Wolf, 2018/09/13
- [Qemu-block] [PATCH v2 10/17] block-backend: Fix potential double blk_delete(), Kevin Wolf, 2018/09/13
- [Qemu-block] [PATCH v2 11/17] block-backend: Decrease in_flight only after callback, Kevin Wolf, 2018/09/13