Re: [Qemu-devel] [Qemu-block] [PATCH v2 02/17] block: Document supported flags during bdrv_aligned_preadv()

[Stefan Hajnoczi]

On Tue, Jun 14, 2016 at 03:30:24PM -0600, Eric Blake wrote:
> We don't pass any flags on to drivers to handle.  Tighten an
> assert to explain why we pass 0 to bdrv_driver_preadv(), and add
> some comments on things to be aware of if we want to turn on
> per-BDS BDRV_REQ_FUA support during reads in the future.  Also,
> document that we may want to consider using unmap during
> copy-on-read operations where the read is all zeroes.
> 
> Signed-off-by: Eric Blake <address@hidden>
> 
> ---
> v2: retitle from 'Honor flags during bdrv_aligned_preadv()', and
> change scope of patch
> ---
>  block/io.c | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)

Reviewed-by: Stefan Hajnoczi <address@hidden>

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