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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Andreas Dilger <adilger@sun.com>
Cc: Valdis.Kletnieks@vt.edu, David Chinner <dgc@sgi.com>,
	Valerie Henson <val@vahconsulting.com>,
	linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,
	linux-kernel@vger.kernel.org, "Theodore Ts'o" <tytso@mit.edu>,
	Andreas Dilger <adilger@clusterfs.com>, Ric Wheeler <ric@emc.com>
Subject: Re: [RFC] Parallelize IO for e2fsck
Date: Tue, 22 Jan 2008 13:05:41 +0000	[thread overview]
Message-ID: <20080122130541.2706e0a0@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20080122070050.GM3180@webber.adilger.int>

> I'd tried to advocate SIGDANGER some years ago as well, but none of
> the kernel maintainers were interested.  It definitely makes sense
> to have some sort of mechanism like this.  At the time I first brought
> it up it was in conjunction with Netscape using too much cache on some
> system, but it would be just as useful for all kinds of other memory-
> hungry applications.

There is an early thread for a /proc file which you can add to your
poll() set and it will wake people when memory is low. Very elegant and
if async support is added it will also give you the signal variant for
free.

Alan

  reply	other threads:[~2008-01-22 13:09 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <70b6f0bf0801161322k2740a8dch6a0d6e6e112cd2d0@mail.gmail.com>
2008-01-16 21:30 ` [RFC] Parallelize IO for e2fsck Valerie Henson
2008-01-18  1:15   ` David Chinner
2008-01-18  1:43     ` Valerie Henson
2008-01-21 23:00   ` Andreas Dilger
2008-01-22  3:38     ` David Chinner
2008-01-22  4:17       ` Valdis.Kletnieks
2008-01-22  7:00         ` Andreas Dilger
2008-01-22 13:05           ` Alan Cox [this message]
2008-01-22 14:40           ` Theodore Tso
2008-01-22 14:57             ` Arnaldo Carvalho de Melo
2008-01-28 19:30             ` Pavel Machek
2008-01-28 19:56               ` Theodore Tso
2008-01-28 20:01                 ` Pavel Machek
2008-02-03 13:51                   ` KOSAKI Motohiro
2008-01-29  8:29                 ` david
2008-01-22  7:05       ` Andreas Dilger
2008-01-22  8:16         ` David Chinner
2008-01-22 17:42       ` Bryan Henderson
     [not found] <9Mo9w-7Ws-25@gated-at.bofh.it>
     [not found] ` <9Mo9w-7Ws-23@gated-at.bofh.it>
     [not found]   ` <9OdWm-7uN-25@gated-at.bofh.it>
     [not found]     ` <9Oi9A-5EJ-3@gated-at.bofh.it>
     [not found]       ` <9OiMg-6IC-1@gated-at.bofh.it>
     [not found]         ` <9OlqL-2xG-3@gated-at.bofh.it>
     [not found]           ` <9Orda-3ub-45@gated-at.bofh.it>
2008-01-24 17:32             ` Bodo Eggert
2008-01-24 22:07               ` Andreas Dilger
2008-01-24 23:08               ` Adrian Bunk
2008-01-24 23:40                 ` Theodore Tso
2008-01-25  0:25                   ` Zan Lynx
2008-01-25 11:09                     ` Andreas Dilger
2008-01-26  0:55                       ` Zan Lynx
2008-01-26 11:56                         ` KOSAKI Motohiro
2008-01-26 12:32                   ` KOSAKI Motohiro
     [not found] <alpine.LSU.0.999.0801252338460.26260@be1.lrz>
2008-01-26  1:55 ` Bryan Henderson
2008-01-26 13:21   ` Theodore Tso

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