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Re: [Qemu-block] [PATCH] block: Simplify BDRV_BLOCK_RAW recursion


From: Stefan Hajnoczi
Subject: Re: [Qemu-block] [PATCH] block: Simplify BDRV_BLOCK_RAW recursion
Date: Tue, 9 May 2017 10:40:36 -0400
User-agent: Mutt/1.8.0 (2017-02-23)

On Thu, May 04, 2017 at 12:37:45PM -0500, Eric Blake wrote:
> Since we are already in coroutine context during the body of
> bdrv_co_get_block_status(), we can shave off a few layers of
> wrappers when recursing to query the protocol when a format driver
> returned BDRV_BLOCK_RAW.
> 
> Note that we are already using the correct recursion later on in
> the same function, when probing whether the protocol layer is sparse
> in order to find out if we can add BDRV_BLOCK_ZERO to an existing
> BDRV_BLOCK_DATA|BDRV_BLOCK_OFFSET_VALID.
> 
> Signed-off-by: Eric Blake <address@hidden>
> ---
>  block/io.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Thanks, applied to my block tree:
https://github.com/stefanha/qemu/commits/block

Stefan

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