From: Daniel Phillips <phillips@bonn-fries.net>
To: Pavel Machek <pavel@suse.cz>, Andrew Morton <akpm@zip.com.au>
Cc: Neil Brown <neilb@cse.unsw.edu.au>,
Linus Torvalds <torvalds@transmeta.com>,
Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andrea Arcangeli <andrea@suse.de>
Subject: Re: 2.4.14-pre6
Date: Mon, 5 Nov 2001 00:16:30 +0100 [thread overview]
Message-ID: <20011104231526Z17058-18972+16@humbolt.nl.linux.org> (raw)
In-Reply-To: <Pine.LNX.4.33.0110310809200.32460-100000@penguin.transmeta.com> <3BE1B6CD.7DA43A6C@zip.com.au> <20011104233416.D1875@elf.ucw.cz>
In-Reply-To: <20011104233416.D1875@elf.ucw.cz>
On November 4, 2001 11:34 pm, Pavel Machek wrote:
> > Another potential microoptimisation would be to write out
> > clean blocks if that helps merging. So if we see a write
> > for blocks 1,2,3,5,6,7 and block 4 is known to be in memory,
> > then write it out too. I suspect this would be a win for
> > ATA but a loss for SCSI. Not sure.
>
> Please don't do this, it is bug.
>
> If user did not ask writing somewhere, DO NOT WRITE THERE! If power
> fails in the middle of the sector... Or if that is flashcard....
or raid or nbd...
> Just don't do this.
--
Daniel
next prev parent reply other threads:[~2001-11-04 23:15 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-31 16:15 2.4.14-pre6 Linus Torvalds
2001-10-31 18:36 ` 2.4.14-pre6 Andrew Morton
2001-10-31 19:06 ` 2.4.14-pre6 Linus Torvalds
2001-11-01 10:20 ` 2.4.14-pre6 Neil Brown
2001-11-01 20:55 ` 2.4.14-pre6 Andrew Morton
2001-11-02 8:00 ` 2.4.14-pre6 Helge Hafting
2001-11-04 22:34 ` 2.4.14-pre6 Pavel Machek
2001-11-04 23:16 ` Daniel Phillips [this message]
2001-11-01 21:28 ` 2.4.14-pre6 Chris Mason
-- strict thread matches above, loose matches on Subject: below --
2001-10-31 8:00 2.4.14-pre6 Linus Torvalds
2001-10-31 9:10 ` 2.4.14-pre6 Andrew Morton
2001-10-31 9:29 ` 2.4.14-pre6 Jens Axboe
2001-10-31 9:30 ` 2.4.14-pre6 bert hubert
2001-10-31 19:27 ` 2.4.14-pre6 Michael Peddemors
2001-10-31 19:38 ` 2.4.14-pre6 Linus Torvalds
2001-10-31 19:55 ` 2.4.14-pre6 Mike Castle
2001-10-31 20:02 ` 2.4.14-pre6 Rik van Riel
2001-10-31 23:18 ` 2.4.14-pre6 Erik Andersen
2001-10-31 23:40 ` 2.4.14-pre6 Dax Kelson
2001-10-31 23:57 ` 2.4.14-pre6 Michael Peddemors
2001-10-31 19:52 ` 2.4.14-pre6 Philipp Matthias Hahn
2001-10-31 21:05 ` 2.4.14-pre6 H. Peter Anvin
2001-11-01 19:14 ` 2.4.14-pre6 Pozsar Balazs
2001-11-02 12:01 ` 2.4.14-pre6 Pavel Machek
2001-11-05 20:43 ` 2.4.14-pre6 Charles Cazabon
2001-11-05 20:49 ` 2.4.14-pre6 Linus Torvalds
2001-11-05 21:04 ` 2.4.14-pre6 Johannes Erdfelt
2001-11-05 21:08 ` 2.4.14-pre6 Wilson
2001-11-05 21:27 ` 2.4.14-pre6 Josh Fryman
2001-11-05 19:04 ` 2.4.14-pre6 Gérard Roudier
2001-11-02 16:48 ` 2.4.14-pre6 jogi
2001-11-03 12:47 ` 2.4.14-pre6 Mike Galbraith
2001-11-03 18:01 ` 2.4.14-pre6 Linus Torvalds
2001-11-03 19:07 ` 2.4.14-pre6 Mike Galbraith
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