Messages in this thread | | | From | "H. Peter Anvin" <> | Subject | Re: [CFT] more kdev_t-ectomy | Date | 20 Apr 2003 14:10:36 -0700 |
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Followup to: <20030420160034.GA20123@win.tue.nl> By author: Andries Brouwer <aebr@win.tue.nl> In newsgroup: linux.dev.kernel > > Of course it may be possible to avoid kernel-internal numbers altogether. > Sometimes that is an improvement, sometimes not. Pointers are more > complicated than numbers - they point at something that must be allocated > and freed and reference counted. A number is like a pointer without the > reference counting. >
I guess the question is: is there any point to have three forms -- with necessary conversions between them -- or is it simpler to have two forms and just use the more awkward dev_t form everywhere? The only use for dev_t's in the kernel should be getting them from or shipping them off to userspace at some point, so it might be just as easily to do the conversion directly -- macroized, of course.
We do need a dev32_t for NFSv2 et al, though.
-hpa -- <hpa@transmeta.com> at work, <hpa@zytor.com> in private! "Unix gives you enough rope to shoot yourself in the foot." Architectures needed: ia64 m68k mips64 ppc ppc64 s390 s390x sh v850 x86-64 - 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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