Messages in this thread | | | Date | Wed, 31 Mar 2004 13:13:00 +0200 (CEST) | From | "Maciej W. Rozycki" <> | Subject | Re: [ACPI] Re: Linux 2.4.26-rc1 (cmpxchg vs 80386 build) |
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On Tue, 30 Mar 2004, Bill Davidsen wrote:
> Is there no reasonable way to avoid using it in ACPI? It's not as if > performance was critical there, or the code gets run often. Too bad it > can't just be emulated like floating point, but I don't think it can on SMP.
Well, "cmpxchg", "xadd", etc. can be easily emulated with an aid of a spinlock. With SMP operation included.
-- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available + - 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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