From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263971AbUHJJvA (ORCPT ); Tue, 10 Aug 2004 05:51:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263847AbUHJJuo (ORCPT ); Tue, 10 Aug 2004 05:50:44 -0400 Received: from cantor.suse.de ([195.135.220.2]:54221 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id S263818AbUHJJuX (ORCPT ); Tue, 10 Aug 2004 05:50:23 -0400 Date: Tue, 10 Aug 2004 09:28:24 +0200 From: Kurt Garloff To: Andrew Morton Cc: Rik van Riel , davidsen@tmr.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] RSS ulimit enforcement for 2.6.8 Message-ID: <20040810072824.GA12445@tpkurt.garloff.de> Mail-Followup-To: Kurt Garloff , Andrew Morton , Rik van Riel , davidsen@tmr.com, linux-kernel@vger.kernel.org References: <411299D4.5060001@tmr.com> <20040805142019.712c678a.akpm@osdl.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="vtzGhvizbBRQ85DL" Content-Disposition: inline In-Reply-To: <20040805142019.712c678a.akpm@osdl.org> X-Operating-System: Linux 2.6.7-0-KG i686 X-PGP-Info: on http://www.garloff.de/kurt/mykeys.pgp X-PGP-Key: 1024D/1C98774E, 1024R/CEFC9215 Organization: SUSE/Novell User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --vtzGhvizbBRQ85DL Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Aug 05, 2004 at 02:20:19PM -0700, Andrew Morton wrote: > It might not be. We could come up with some dopey per-process flag, > inherited across fork which means "invalidate each file's pagecache when I > close it". =20 Currently, we don't even have a way to explicitly drop page cache for a file or filesystem except for umounting it.=20 In the old buffer cache days, BLKFLSBUF would have done it, but that's pretty much without any effect nowadays. So maybe you want to add the ioctl as well. It would be useful for doagnostics and benchmarking as well. Regards, --=20 Kurt Garloff Cologne, DE=20 SUSE LINUX AG / Novell, Nuernberg, DE Director SUSE Labs --vtzGhvizbBRQ85DL Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) iD8DBQFBGHkYxmLh6hyYd04RAszZAJ92F0DJwabWbsy5jMBvvEYfXXvm+gCfQVUl H3WynyugGhXij0tLRrwRsZM= =12DF -----END PGP SIGNATURE----- --vtzGhvizbBRQ85DL--