On 02/18/2013 05:48 AM, Peter Lieven wrote:
> bdrv_truncate() invalidates the bdrv_check_request() result for
> in-flight requests, so there should better be none.
> 
> Signed-off-by: Peter Lieven <p...@kamp.de>
> Reported-by: Kevin Wolf <kw...@redhat.com>
> ---
>  block.c |    4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/block.c b/block.c
> index 50dab8e..d8880e3 100644
> --- a/block.c
> +++ b/block.c
> @@ -2427,6 +2427,10 @@ int bdrv_truncate(BlockDriverState *bs, int64_t
> offset)
>          return -EACCES;
>      if (bdrv_in_use(bs))
>          return -EBUSY;
> +
> +    /* there should be better no IOs in flight when we truncate the
> device */

Grammar.  Not sure what you were trying to say, but this might be better:

/* There should not be any in-flight IOs when we truncate the device. */

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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