From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hans Reiser <reiser@namesys.com>
Subject: Re: reiser4 and laptop_mode
Date: Tue, 18 Oct 2005 08:49:40 -0700
Message-ID: <43551994.8020607@namesys.com>
References: <19812996093.20051017162429@usu.ru> <43542DE1.7050700@slaphack.com> <43545DCF.1070301@namesys.com> <689595617.20051018154707@usu.ru>
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To: Alexander Zarochentcev <zam@namesys.com>
Cc: Valentine Sinitsyn <Valentine.Sinitsyn@usu.ru>, reiserfs-list@namesys.com

Valentine Sinitsyn wrote:

>Hi, all,
>
>HR> We should work to integrate well with it.  Zam, can you look at that?
>HR> Thanks.
>I was looking through linux-2.6.10 sources this morning and did not found
>laptop_mode anywhere in filesystem-specific code (except xfs). I'm not
>a kernel hacker but it seems to me that laptop_mode is compatible with
>everything which have customizable committing period. laptop_mode
>tools (shell scripts which are used to activate this feature) do
>mainly two things: they set up commit period in
>/proc/sys/vm/laptop_mode (this data is used later in pdflush
>controlling code etc), remount filesystems with -o
>commit=laptop_mode_value and set read-ahead value for hd[a-z].
>
>Am I right?
>
>P.S. Thanks for the replies.
>
>Best regards,
>Valentine
>
>
>
>  
>
zam, please respond.  Are you at work today?