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Re: [Qemu-block] [Qemu-devel] [PATCH v2 08/17] blkdebug: Set request_ali
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From: |
Fam Zheng |
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Subject: |
Re: [Qemu-block] [Qemu-devel] [PATCH v2 08/17] blkdebug: Set request_alignment during .bdrv_refresh_limits() |
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Date: |
Thu, 16 Jun 2016 13:27:29 +0800 |
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User-agent: |
Mutt/1.6.1 (2016-04-27) |
On Tue, 06/14 15:30, Eric Blake wrote:
> We want to eventually stick request_alignment alongside other
> BlockLimits, but first, we must ensure it is populated at the
> same time as all other limits, rather than being a special case
> that is set only when a block is first opened.
>
> qemu-iotests 77 is particularly sensitive to the fact that we
> can specify an artificial alignment override in blkdebug, and
> that override must continue to work even when limits are
> refreshed on an already open device.
>
> A later patch will be altering when bs->request_alignment
> defaults are set, so fall back to sector alignment if we have
> not inherited anything yet.
>
> Signed-off-by: Eric Blake <address@hidden>
Reviewed-by: Fam Zheng <address@hidden>
- Re: [Qemu-block] [PATCH v2 17/17] block: Move request_alignment into BlockLimit, (continued)
[Qemu-block] [PATCH v2 09/17] iscsi: Set request_alignment during .bdrv_refresh_limits(), Eric Blake, 2016/06/14
[Qemu-block] [PATCH v2 16/17] block: Split bdrv_merge_limits() from bdrv_refresh_limits(), Eric Blake, 2016/06/14
[Qemu-block] [PATCH v2 08/17] blkdebug: Set request_alignment during .bdrv_refresh_limits(), Eric Blake, 2016/06/14
Re: [Qemu-block] [PATCH v2 00/17] Byte-based block limits, Kevin Wolf, 2016/06/21