Messages in this thread |  | | Date | Sat, 19 May 2001 22:22:55 -0400 | From | Richard Gooch <> | Subject | Re: [RFD w/info-PATCH] device arguments from lookup, partion code |
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Matthew Wilcox writes: > On Sat, May 19, 2001 at 12:51:23PM -0600, Richard Gooch wrote: > > Al, if you really want to kill ioctl(2), then perhaps you should > > implement a transaction(2) syscall. Something like: > > int transaction (int fd, void *rbuf, size_t rlen, > > void *wbuf, size_t wlen); > > > > Of course, there wouldn't be any practical gain, since we already have > > ioctl(2). Any gain would be aesthetic. > > I can tell you haven't had to write any 32-bit ioctl emulation code for > a 64-bit kernel recently.
The transaction(2) syscall can be just as easily abused as ioctl(2) in this respect. People can pass pointers to ill-designed structures very easily. The main advantage of transaction(2) is that hopefully, people will not be so bone-headed as to forget to pass sizeof *structptr as the size field. So perhaps some error trapping is possible.
Regards,
Richard.... Permanent: rgooch@atnf.csiro.au Current: rgooch@ras.ucalgary.ca - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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