On 08/04/2017 09:06 AM, Daniel P. Berrange wrote: > On Fri, Aug 04, 2017 at 04:02:10PM +0200, Kevin Wolf wrote: >> Am 04.08.2017 um 12:50 hat Daniel P. Berrange geschrieben: >>> Signed-off-by: Daniel P. Berrange <berra...@redhat.com> >>> ---
>> Really? We are asserting that they match in bdrv_aligned_preadv(): >> >> assert(!qiov || bytes == qiov->size); > > Hmm, why do we pass @bytes at all then ? If they're always the same, > how about deleting it and just letting everyone read qiov->size > directly. Read the assertion again: qiov can be NULL (generally, when writing zeroes). So we can't rely on qiov->size in that scenario. -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org
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