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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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