From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: -mm merge plans for 2.6.23 In-Reply-To: Your message of "Wed, 25 Jul 2007 13:34:01 +0200." <20070725113401.GA23341@elte.hu> From: Valdis.Kletnieks@vt.edu References: <46A58B49.3050508@yahoo.com.au> <2c0942db0707240915h56e007e3l9110e24a065f2e73@mail.gmail.com> <46A6CC56.6040307@yahoo.com.au> <46A6D7D2.4050708@gmail.com> <46A6DFFD.9030202@gmail.com> <30701.1185347660@turing-police.cc.vt.edu> <46A7074B.50608@gmail.com> <20070725082822.GA13098@elte.hu> <46A70D37.3060005@gmail.com> <20070725113401.GA23341@elte.hu> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1185379688_3413P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Wed, 25 Jul 2007 12:08:08 -0400 Message-ID: <24826.1185379688@turing-police.cc.vt.edu> Sender: owner-linux-mm@kvack.org Return-Path: To: Ingo Molnar Cc: Rene Herman , david@lang.hm, Nick Piggin , Ray Lee , Jesper Juhl , Andrew Morton , ck list , Paul Jackson , linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: --==_Exmh_1185379688_3413P Content-Type: text/plain; charset=us-ascii On Wed, 25 Jul 2007 13:34:01 +0200, Ingo Molnar said: > Maybe the kernel could be extended with a method of opening files in a > 'drop from the dcache after use' way. (beagled and backup tools could > make use of that facility too.) (Or some other sort of > file-cache-invalidation syscall that already exist, which would _also_ > result in the immediate zapping of the dentry+inode from the dcache.) The semantic that would benefit my work patterns the most would not be "immediate zapping" - I have 2G of RAM, so often there's no memory pressure, and often a 'find' will be followed by another similar 'find' that will hit a lot of the same dentries and inodes, so may as well save them if we can. Flagging it as "the first to be heaved over the side the instant there *is* pressure" would suit just fine. Or is that the semantic you actually meant? --==_Exmh_1185379688_3413P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFGp3VocC3lWbTT17ARAs+kAKC7KVnf8TLQYVv1Ie6Ecd55Thu+XQCeN6kI /DvGcqYu6+dXJ+MyjvT7QoE= =4y3F -----END PGP SIGNATURE----- --==_Exmh_1185379688_3413P-- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org