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Re: [Qemu-block] [PATCH 2/5] block: Honor flags during bdrv_aligned_prea
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From: |
Kevin Wolf |
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Subject: |
Re: [Qemu-block] [PATCH 2/5] block: Honor flags during bdrv_aligned_preadv() |
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Date: |
Tue, 7 Jun 2016 14:12:34 +0200 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
Am 03.06.2016 um 19:03 hat Eric Blake geschrieben:
> Not that we pass any flags during reads yet, but we may want to
> support BDRV_REQ_FUA on reads in the future. So don't throw
> away the input flags.
>
> Signed-off-by: Eric Blake <address@hidden>
Do we want to pass flags to bdrv_co_do_copy_on_readv(), too? I guess we
would use them for the preadv call there, but continue to use 0 as the
pwritev flags.
We may also want to introduce a .supported_read_flags, but perhaps this
is not something to do in this patch. And we don't even use
.supported_write_flags for drivers that have a native .bdrv_co_pwritev.
Of course, that's even less related to this patch. I guess I should send
a fix for that.
Looks good otherwise.
Kevin