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Re: [Qemu-devel] [PATCH 07/11] block: optimization blk_pwrite_compressed
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From: |
Eric Blake |
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Subject: |
Re: [Qemu-devel] [PATCH 07/11] block: optimization blk_pwrite_compressed() |
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Date: |
Fri, 24 Jun 2016 09:42:16 -0600 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 |
On 05/31/2016 03:15 AM, Denis V. Lunev wrote:
> From: Pavel Butsykin <address@hidden>
>
> For bdrv_pwrite_compressed() it looks like most of the code creating coroutine
> is duplicated in blk_prw(). So we can just add a
> flag(BDRV_REQ_WRITE_COMPRESSED)
> and use the blk_prw() as a generic one.
>
> Signed-off-by: Pavel Butsykin <address@hidden>
> Signed-off-by: Denis V. Lunev <address@hidden>
> CC: Jeff Cody <address@hidden>
> CC: Markus Armbruster <address@hidden>
> CC: Eric Blake <address@hidden>
> CC: John Snow <address@hidden>
> CC: Stefan Hajnoczi <address@hidden>
> CC: Kevin Wolf <address@hidden>
> ---
> +++ b/include/block/block.h
> @@ -65,6 +65,7 @@ typedef enum {
> BDRV_REQ_MAY_UNMAP = 0x4,
> BDRV_REQ_NO_SERIALISING = 0x8,
> BDRV_REQ_FUA = 0x10,
> + BDRV_REQ_WRITE_COMPRESSED = 0x20,
> } BdrvRequestFlags;
>
Needs to be rebased on top of commit fa166538, and adjust BDRV_REQ_MASK
at that time.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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