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From: Jens Axboe <jens.axboe@oracle.com>
To: Eric Dumazet <dada1@cosmosbay.com>
Cc: Tomas M <tomas@slax.org>, linux-kernel@vger.kernel.org
Subject: Re: max_loop limit
Date: Thu, 22 Mar 2007 14:54:57 +0100	[thread overview]
Message-ID: <20070322135456.GS19922@kernel.dk> (raw)
In-Reply-To: <20070322145245.a49fefeb.dada1@cosmosbay.com>

On Thu, Mar 22 2007, Eric Dumazet wrote:
> On Thu, 22 Mar 2007 14:42:31 +0100
> Jens Axboe <jens.axboe@oracle.com> wrote:
> 
> 
> > > This time, you would be limited to 16384 loop devices on x86_64, 32768 on i386 :)
> > 
> > But this still wastes memory, why not just allocate each loop device
> > dynamically when it is set up? The current approach is crap, it is just
> > wasting memory for loop devices, queues, etc.
> > 
> 
> Sure, but it's the first Tomas patch :)

The more the reason to guide him in the direction of a right solution,
instead of extending the current bad one!

> Apparently the 'current crap' didnt caugth someone else attention.

I guess most people don't care, 8 is enough for them and the wasted
memory isn't too much to care about - 8 devices and only one used, is
wasting at least ~14kb on my machine here.

-- 
Jens Axboe


  reply	other threads:[~2007-03-22 13:58 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-22  7:57 max_loop limit Tomas M
2007-03-22 11:00 ` markus reichelt
2007-03-22 11:37   ` Tomas M
2007-03-22 13:42     ` Eric Dumazet
2007-03-22 13:42       ` Jens Axboe
2007-03-22 13:52         ` Eric Dumazet
2007-03-22 13:54           ` Jens Axboe [this message]
2007-03-22 14:11             ` William Lee Irwin III
2007-03-22 15:22               ` Arjan van de Ven
2007-03-22 16:09               ` Pádraig Brady
2007-03-28 23:34                 ` Karel Zak
     [not found]             ` <20070322151826.c1421851.dada1@cosmosbay.com>
     [not found]               ` <20070322142306.GU19922@kernel.dk>
     [not found]                 ` <20070322153603.1f5d442d.dada1@cosmosbay.com>
2007-03-22 15:31                   ` max_loop limit - paid job offer Tomas M
2007-03-22 14:33         ` max_loop limit Al Viro
2007-03-22 19:51           ` Olivier Galibert
2007-03-22 14:25       ` Tomas M
2007-03-23  1:34       ` Jan Engelhardt
2007-03-23 23:26         ` [PATCH] " Jan Engelhardt
2007-03-25  0:17           ` Ken Chen
2007-03-25  0:29           ` Ken Chen
2007-03-25  8:40           ` Tomas M
2007-03-28 23:41             ` Karel Zak
2007-03-29  3:54           ` Kyle Moffett
2007-03-29  4:16             ` [PATCH] max_loop limit, t2 Jan Engelhardt
2007-03-29  8:38               ` [PATCH] max_loop limit, loop.c final working version Tomas M
2007-03-29 14:16     ` max_loop limit Bill Davidsen
2007-03-22 13:53 devzero
2007-03-22 23:23 devzero
2007-03-23  8:59 ` Tomas M
2007-03-22 23:37 roland
2007-03-29 14:20 ` Bill Davidsen

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