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Re: [PATCH] qcow2: Return the original error code in qcow2_co_pwrite_zer
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From: |
Max Reitz |
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Subject: |
Re: [PATCH] qcow2: Return the original error code in qcow2_co_pwrite_zeroes() |
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Date: |
Fri, 11 Sep 2020 11:00:04 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 |
On 09.09.20 14:37, Alberto Garcia wrote:
> This function checks the current status of a (sub)cluster in order to
> see if an unaligned 'write zeroes' request can be done efficiently by
> simply updating the L2 metadata and without having to write actual
> zeroes to disk.
>
> If the situation does not allow using the fast path then the function
> returns -ENOTSUP and the caller falls back to writing zeroes.
>
> If can happen however that the aforementioned check returns an actual
> error code so in this case we should pass it to the caller.
>
> Signed-off-by: Alberto Garcia <berto@igalia.com>
> ---
> block/qcow2.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Thanks, applied to my block branch:
https://git.xanclic.moe/XanClic/qemu/commits/branch/block
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