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Re: [Qemu-devel] [PATCH v2 0/5] block: Ensure non-protocol drivers can o
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] [PATCH v2 0/5] block: Ensure non-protocol drivers can only be selected explicitly |
Date: |
Tue, 20 Mar 2018 11:48:20 +0100 |
User-agent: |
Mutt/1.9.1 (2017-09-22) |
Am 12.03.2018 um 23:07 hat Fabiano Rosas geschrieben:
> Block drivers can be selected by either protocol syntax:
>
> <protocol>:<filename>[:options]
>
> or explicitly:
>
> driver=<driver>[,option=<opt1>...]
>
> For the protocol syntax to work, drivers should set the protocol_name
> field of the BlockDriver structure and provide bdrv_file_open and
> bdrv_parse_filename implementations.
>
> Conversely, block drivers that do not support the protocol syntax
> should instead implement bdrv_open and not have a protocol_name field.
>
> Some drivers do not currently adhere to this and errors arise when
> trying to select them using the protocol syntax. For instance:
>
> $ qemu-img info replication:foo
> qemu-img: block.c:2401: bdrv_open_inherit: \
> Assertion `!!(flags & BDRV_O_PROTOCOL) == !!drv->bdrv_file_open' failed.
> Aborted (core dumped)
>
> This patch-set ensures that the following drivers are meeting the
> above criteria:
> - blkreplay
> - quorum
> - replication
> - throttle
>
> Aside from that, documentation was added to make the above more
> explicit.
Thanks, applied to the block branch.
Kevin
- [Qemu-devel] [PATCH v2 0/5] block: Ensure non-protocol drivers can only be selected explicitly, Fabiano Rosas, 2018/03/12
- [Qemu-devel] [PATCH v2 2/5] block/quorum: Remove protocol-related fields, Fabiano Rosas, 2018/03/12
- [Qemu-devel] [PATCH v2 3/5] block/throttle: Remove protocol-related fields, Fabiano Rosas, 2018/03/12
- [Qemu-devel] [PATCH v2 1/5] block/replication: Remove protocol_name field, Fabiano Rosas, 2018/03/12
- [Qemu-devel] [PATCH v2 4/5] block/blkreplay: Remove protocol-related fields, Fabiano Rosas, 2018/03/12
- [Qemu-devel] [PATCH v2 5/5] include/block/block_int: Document protocol related functions, Fabiano Rosas, 2018/03/12
- Re: [Qemu-devel] [PATCH v2 0/5] block: Ensure non-protocol drivers can only be selected explicitly,
Kevin Wolf <=