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Date: Thu, 26 Dec 2013 12:08:59 +0800
From: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
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Subject: Re: [Qemu-devel] [PATCH v2 10/24] block: Introduce
	bdrv_co_do_preadv()
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To: Kevin Wolf <kwolf@redhat.com>, qemu-devel@nongnu.org
Cc: pbonzini@redhat.com, pl@kamp.de, stefanha@redhat.com

>       /* throttling disk I/O */
>       if (bs->io_limits_enabled) {
> -        bdrv_io_limits_intercept(bs, nb_sectors, false);
> +        bdrv_io_limits_intercept(bs, bytes >> BDRV_SECTOR_BITS, false);
> +    }

 Is it possible (bytes >> BDRV_SECTOR_BITS) == 0?

>