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Re: [Qemu-devel] scsi-generic and max request size

From: Benjamin Herrenschmidt
Subject: Re: [Qemu-devel] scsi-generic and max request size
Date: Thu, 23 Dec 2010 10:44:17 +1100

On Thu, 2010-12-23 at 00:39 +0100, Alexander Graf wrote:
> This all belongs in the block layer. If you create a call back
> function or property in the block struct, windows can implement its
> own limits when someone sits down to implement SG_IO on Windows.

Right and we do have "generic" ways it seems to interrogate those
limits .. except they seem to be broken for "sg" :-)

Also I've spotted some oddities where the ioctl for the max request size
sometimes put_user as a int * and sometimes as a short * ... ooops...


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