Messages in this thread | | | Date | Thu, 16 Dec 2004 06:03:56 +0100 | From | Andi Kleen <> | Subject | Re: [discuss] Re: unregister_ioctl32_conversion and modules. ioctl32 revisited. |
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On Wed, Dec 15, 2004 at 01:30:59PM -0500, Lee Revell wrote: > 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"?
This is another "official" way which is more powerful. I suppose it will replace Ingo's patch.
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