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Re: [Qemu-block] [PATCH 1/2] qemu-io: don't allow I/O operations larger

From: Max Reitz
Subject: Re: [Qemu-block] [PATCH 1/2] qemu-io: don't allow I/O operations larger than INT_MAX
Date: Wed, 1 Feb 2017 23:16:38 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0

On 31.01.2017 17:09, Alberto Garcia wrote:
> Passing a request size larger than INT_MAX to any of the I/O commands
> results in an error. While 'read' and 'write' handle the error
> correctly, 'aio_read' and 'aio_write' hit an assertion:
> blk_aio_read_entry: Assertion `rwco->qiov->size == acb->bytes' failed.
> The reason is that the QEMU I/O code cannot handle request sizes
> larger than INT_MAX, so this patch makes qemu-io check that all values
> are within range.
> Signed-off-by: Alberto Garcia <address@hidden>
> ---
>  qemu-io-cmds.c | 21 ++++++++++++---------
>  1 file changed, 12 insertions(+), 9 deletions(-)

Thanks, applied to my block tree, with


(Maybe you should take a quick glance on whether all of the changes are
really OK for you, the commit currently resides under


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