Date: Tue, 20 Dec 2011 17:12:06 +0100 (CET) From: "Ganael LAPLANCHE" <ganael.laplanche@martymac.org> To: Andriy Gapon <avg@FreeBSD.org> Cc: Tijl Coosemans <tijl@coosemans.org>, freebsd-stable@FreeBSD.org Subject: Re: Using mmap(2) with a hint address Message-ID: <20111220160753.M1352@martymac.org> In-Reply-To: <4EF0A3A7.80309@FreeBSD.org> References: <20111220080437.M63044@martymac.org> <4EF05F27.8030902@FreeBSD.org> <20111220134716.M62917@martymac.org> <20111220142740.M29405@martymac.org> <4EF0A3A7.80309@FreeBSD.org>
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On Tue, 20 Dec 2011 17:03:03 +0200, Andriy Gapon wrote > Just a guess - this might be some sort of optimization to keep > virtual address range of dynamic allocations untouched by > unrelated mmap calls. Not sure if that's so and how useful > could that be. svn log / svn annotate of the file may reveal > more details. Mmmhh.... It seems that this part of the code is quite old and was already present in the BSD 4.4 Lite kernel (not exactly in the same shape, but with the same idea). Quite confusing... -- Ganael LAPLANCHE <ganael.laplanche@martymac.org> http://www.martymac.org | http://contribs.martymac.org FreeBSD: martymac <martymac@FreeBSD.org>, http://www.FreeBSD.org
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