Date: 02 Mar 2001 13:59:34 +0100 From: Dag-Erling Smorgrav <des@ofug.org> To: Peter Dufault <dufault@hda.hda.com> Cc: Anton Berezin <tobez@tobez.org>, hackers@FreeBSD.ORG Subject: Re: how to actually find out whether data hit the disk? Message-ID: <xzpvgpsmimh.fsf@flood.ping.uio.no> In-Reply-To: Peter Dufault's message of "Wed, 28 Feb 2001 09:18:21 -0500 (EST)" References: <200102281418.f1SEILG28001@hda.hda.com>
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Peter Dufault <dufault@hda.hda.com> writes: > > > Do an msync with MS_SYNC someplace. Also, use MAP_NOSYNC in > > > mmap until 4.3 when Matt Dillon plans to make that the default behavior. > > Ahh, no. That's the other way around - I do not *want* it to hit the > > disk, but would like to *know* when it nevertheless does. > OK, doing a stat and checking the mtime should give you > the info at the expense of polling, I can't think of another way. Won't help. You'll get the same mtime no matter whether the file is actually written to disk or not. DES -- Dag-Erling Smorgrav - des@ofug.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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