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SubjectRe: unregister_ioctl32_conversion and modules. ioctl32 revisited.
FromLee Revell <>
DateWed, 15 Dec 2004 13:30:59 -0500
On Wed, 2004-12-15 at 19:20 +0100, Takashi Iwai wrote:
> At Wed, 15 Dec 2004 09:46:35 +0200,
> Michael S. Tsirkin wrote:
> > 
> > There were two additional motivations for my patch:
> > 1. Make it possible to avoid the BKL completely by writing
> >    an ioctl with proper internal locking.
> > 2. As noted by  Juergen Kreileder, the compat hash does not work
> >    for ioctls that encode additional information in the command, like this:
> > 
> > #define EVIOCGBIT(ev,len)  _IOC(_IOC_READ, 'E', 0x20 + ev, len)
> 
> I like the idea very well.  Other benifits in addition:
> 

How does this all relate to Ingo's ->unlocked_ioctl stuff which is "an
official way to do BKL-less ioctls"?

http://lkml.org/lkml/2004/12/14/53

Lee

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