Re: [Xen-devel] 32/64-bit hypercall interface

[David <xendev@xxxxxxxxxxxxxx>]

Hi,

> I think the Linux kernel folks learned the "unsigned long" lesson too 
> late, and now there is quite a lot of fixup code to convert 32-bit 
> userspace structs to 64-bit kernel structs (have a look at 
> linux/fs/compat_ioctl.c and compat.c). It seems a shame to repeat the 
> same mistakes in Xen...
Quick question....  What is this "'unsigned long' lesson" you are 
refering to?
-- David

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