Date: Wed, 28 Jul 2004 16:57:01 -0600 From: "Justin T. Gibbs" <gibbs@scsiguy.com> To: John Baldwin <jhb@freebsd.org>, Perforce Change Reviews <perforce@freebsd.org> Subject: Re: PERFORCE change 58403 for review Message-ID: <A437589FD438D4483200878E@aslan.scsiguy.com> In-Reply-To: <200407282050.i6SKo9ci010595@repoman.freebsd.org> References: <200407282050.i6SKo9ci010595@repoman.freebsd.org>
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> http://perforce.freebsd.org/chv.cgi?CH=58403 > > Change 58403 by jhb@jhb_slimer on 2004/07/28 20:49:40 > > Prompted by some questions on IRC from gibbs@, scottl@, and others: > atomic_store_rel() on ia32 does not actually need a lock ... > Differences ... > > ==== //depot/projects/smpng/sys/i386/include/atomic.h#13 (text+ko) ==== > > @@ -180,7 +180,7 @@ > * XXX: This is _NOT_ safe on a P6 or higher because it does not guarantee > * memory ordering. These should only be used on a 386. > */ Is the above comment still accurate? -- Justin
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