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Subject: Re: 2.6.23-rc1: BUG_ON in kmap_atomic_prot() Newsgroups: gmane.linux.network, gmane.linux.kernel Date: 2007-07-24 19:48:13 GMT (2 years, 28 weeks, 4 days, 19 hours and 32 minutes ago) On Tue, 24 Jul 2007, Adrian Bunk wrote: > > > But do we > > care so much that it's worth inlining something like buffered_rmqueue()? > >... > > Where is the problem with having buffered_rmqueue() inlined? In this case, it was a pain to just even try to find the call chain, or read the asm. I would encourage lots of kernel hackers to read the assembler code gcc generates. I suspect people being aware of code generation issues (and writing their code with that in mind) is a *much* bigger performance impact than gcc inlining random functions. So maybe I'm old-fashioned and crazy, but "readability of the asm result" actually is a worthwhile goal. Not because we care directly, but because I'd like to encourage people to do it, due to the *indirect* benefits. Linus - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo <at> vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html |
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