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Re: [Qemu-block] [PATCH] nbd: Honor server's advertised minimum block si
Re: [Qemu-block] [PATCH] nbd: Honor server's advertised minimum block size
Wed, 21 Feb 2018 08:34:13 -0600
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On 02/16/2018 05:50 AM, Vladimir Sementsov-Ogievskiy wrote:
15.02.2018 06:29, Eric Blake wrote:
Commit 79ba8c98 (v2.7) changed the setting of request_alignment
to occur only during bdrv_refresh_limits(), rather than at at
bdrv_open() time; but at the time, NBD was unaffected, because
it still used sector-based callbacks, so the block layer
defaulted NBD to use 512 request_alignment.
Fix these issues by moving the assignment to request_alignment
to the right function, and by using a sane default when the
server does not advertise a minimum size.
Signed-off-by: Eric Blake <address@hidden>
Reviewed-by: Vladimir Sementsov-Ogievskiy<address@hidden>
Thanks; applied to my NBD queue.
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org