Date: Sat, 11 Oct 2003 09:18:22 +0100 From: Bruce M Simpson <bms@spc.org> To: Tim Kientzle <kientzle@acm.org> Cc: freebsd-hackers@freebsd.org Subject: Re: Dynamic reads without locking. Message-ID: <20031011081822.GA679@saboteur.dek.spc.org> In-Reply-To: <3F8795A9.5020409@acm.org> References: <20031008083059.GA520@garage.freebsd.pl> <20031008114506.I63940@beagle.fokus.fraunhofer.de> <20031008101251.GG6524@saboteur.dek.spc.org> <3F875172.5010309@acm.org> <3F8795A9.5020409@acm.org>
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On Fri, Oct 10, 2003 at 10:31:21PM -0700, Tim Kientzle wrote: > On further inspection, I'm pretty sure that sys/kern/subr_devstat.c > is not correct. OK. What about the shared page interface? Specifically the comment above devstat_end_transaction(). The generation count is used by the old sysctl interface. The shared page interface has a liberal sprinkling of atomic*() instructions. BMS
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