Messages in this thread | | | Date | Tue, 25 Mar 2008 14:20:32 -0700 | From | Greg KH <> | Subject | Re: What to do about the 2TB limit on HDIO_GETGEO ? |
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On Tue, Mar 25, 2008 at 01:36:51PM -0700, H. Peter Anvin wrote: > Randy Dunlap wrote: >>> >>> Come on people, adding symlinks for device major:minor numbers in sysfs >>> to save a few 10s of lines of userspace code? Can things get sillier? >>> >>> You can add a single udev rule to probably build these in a tree in /dev >>> if you really need such a thing... >>> >>> And what's wrong with your new ioctl recomendation? >> Ah, there's some sanity. :) > > It's not so much an issue of a few tens of lines of user space code, but > rather the fact that something that should be O(1) is currently O(n).
"should"? why? Is this some new requirement that everyone needs? I've _never_ seen anyone ask for the ability to find sysfs devices by major:minor number in O(1) time. Is this somehow a place where such optimization is warranted?
thanks,
greg k-h
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