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Re: [Qemu-devel] [PATCH] Fix COR by disabling BDRV_O_COPY_ON_READ before
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From: |
Max Reitz |
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Subject: |
Re: [Qemu-devel] [PATCH] Fix COR by disabling BDRV_O_COPY_ON_READ before opening the backing_file. |
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Date: |
Sat, 26 Oct 2013 15:31:12 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.0 |
Am 25.10.2013 02:15, schrieb Thibaut LAURENT:
> Since commit 0ebd24e0a203cf2852c310b59fbe050190dc6c8c,
> bdrv_open_common will throw an error when trying to open a file
> read-only with the BDRV_O_COPY_ON_READ flag set.
> Although BDRV_O_RDWR is unset for the backing files,
> BDRV_O_COPY_ON_READ is still passed on if copy-on-read was requested
> for the drive. Let's unset this flag too before opening the backing
> file, or bdrv_open_common will fail.
>
> Signed-off-by: Thibaut LAURENT <address@hidden>
> ---
> block.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
Reviewed-by: Max Reitz <address@hidden>