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From: Pavel Machek <pavel@suse.cz>
To: Jens Axboe <axboe@suse.de>
Cc: Andrew Morton <akpm@zip.com.au>,
	Xavier Bestel <xavier.bestel@free.fr>,
	Andreas Dilger <adilger@clusterfs.com>,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: [rfc] "laptop mode"
Date: Sun, 2 Jun 2002 06:43:22 +0000	[thread overview]
Message-ID: <20020602064321.C219@toy.ucw.cz> (raw)
In-Reply-To: <3CFD453A.B6A43522@zip.com.au> <20020604233124.GA18668@turbolinux.com> <3CFD50B9.259366F4@zip.com.au> <1023272806.15438.106.camel@bip> <20020605103351.GA15883@suse.de> <3CFDEE17.FD1306A0@zip.com.au> <20020605105346.GC15883@suse.de>

Hi!

> > Yes, it could be per-queue.  That would add complexity to
> > the already-murky fs/fs-writeback.c.  It that justifiable?

Doing it per-queue is right, doing is per-system is clearly wrong. 

> I dunno, it's up to you. I guess this is mainly IDE specific anyways,

SCSI can do spindowns, too, and it *needs* kernel support for that. On
IDE, this can be (in a racy way) done userspace, too.

> but you apply the same logic to just one (for instance) of your disks on
> a home desktop system.


-- 
Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt,
details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.


  reply	other threads:[~2002-06-06 18:31 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-06-04 22:54 [rfc] "laptop mode" Andrew Morton
2002-06-02  5:46 ` Pavel Machek
2002-06-04 23:13 ` Andrew Morton
2002-06-02  5:47   ` Pavel Machek
2002-06-04 23:31 ` Andreas Dilger
2002-06-04 23:43   ` Andrew Morton
2002-06-02  5:52     ` Pavel Machek
2002-06-05 10:26     ` Xavier Bestel
2002-06-05 10:33       ` Jens Axboe
2002-06-05 10:55         ` Andrew Morton
2002-06-05 10:53           ` Jens Axboe
2002-06-02  6:43             ` Pavel Machek [this message]
2002-06-05 19:28             ` Andrew Morton
2002-06-02  6:41               ` Pavel Machek
2002-06-06 18:40           ` Oliver Xymoron
2002-06-05 10:39       ` Andrew Morton
2002-06-02  5:55         ` Pavel Machek
2002-06-05 10:47         ` Xavier Bestel
2002-06-05 18:37         ` Jeff Garzik
2002-06-05 22:32           ` Padraig Brady
2002-06-05 22:39             ` Cort Dougan
2002-06-05 11:41   ` Hans-Christian Armingeon
2002-06-05 10:02     ` Thomas 'Dent' Mirlacher
2002-06-05 11:05       ` Matti Aarnio
2002-06-05 11:10     ` Ingo Oeser
2002-06-05  3:41 ` Albert D. Cahalan
2002-06-05 17:07   ` Andrew Pimlott
2002-06-05 18:04     ` Frank v Waveren
2002-06-05 18:06       ` Frank v Waveren
2002-06-05 18:14     ` Daniel Jacobowitz
2002-06-05  9:44 ` Martin Dalecki

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