Date: Sun, 29 Jan 2012 16:57:38 +0400 From: Andrey Chernov <ache@FreeBSD.ORG> To: David Schultz <das@FreeBSD.ORG>, John Baldwin <jhb@FreeBSD.ORG>, Mark Murray <markm@FreeBSD.ORG>, src-committers@FreeBSD.ORG, svn-src-all@FreeBSD.ORG, svn-src-head@FreeBSD.ORG Subject: Re: svn commit: r230230 - head/sys/dev/random Message-ID: <20120129125738.GA26520@vniz.net> In-Reply-To: <20120126181340.GA93157@vniz.net> References: <E1Rny2A-000C3x-O6@groundzero.grondar.org> <20120126143819.GA88677@vniz.net> <20120126155626.GA92229@vniz.net> <201201261132.38320.jhb@freebsd.org> <20120126165521.GA92622@vniz.net> <20120126175243.GA19199@zim.MIT.EDU> <20120126181340.GA93157@vniz.net>
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On Thu, Jan 26, 2012 at 10:13:41PM +0400, Andrey Chernov wrote: > On Thu, Jan 26, 2012 at 12:52:43PM -0500, David Schultz wrote: > > Why complicate things with atomics at all? A race might result in > > arc4random(9) being seeded multiple times, but that's harmless. >=20 > Multiply seeding in line is harmless, just waste of time and resources. > Other case is one missing seeding when variable is set concurrently with > its read. I see no complication using atomic. Latest version is even=20 > shorter than previous ones. Well, I almost forget about my special case: I have personal prohibition=20 =66rom @secteam (5 years old already) to commit anything to all RNG areas. So, the question is: could anyone of you commit some version from this=20 thread, please?=20 I don't insist of atomics in this sutuation, so you can peek any version=20 you like. --=20 http://ache.vniz.net/
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