linux-kernel - Re: feature-removal-schedule obsoletes

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Message-ID: <4547B01A.2060700@drzeus.cx>
Date:	Tue, 31 Oct 2006 21:20:42 +0100
From:	Pierre Ossman <drzeus-list@...eus.cx>
To:	"Jörn Engel" <joern@...nheim.fh-wedel.de>
CC:	Arnd Bergmann <arnd@...db.de>, Christoph Hellwig <hch@....de>,
	Jiri Slaby <jirislaby@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Adrian Bunk <bunk@...sta.de>,
	Dominik Brodowski <linux@...do.de>,
	Harald Welte <laforge@...filter.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Jean Delvare <khali@...ux-fr.org>
Subject: Re: feature-removal-schedule obsoletes

Jörn Engel wrote:
> Why does the MMC block driver use a thread?  Is there a technical
> reason for this or could it be done in original process context as
> well, removing some code and useless cpu scheduler overhead?
>   

I'm afraid I don't know the block layer very well, but that thread seems
to be polling the block layer for requests and handing the over to the
routines in mmc_block.c.

How do you set it up so that the block layer itself calls the necessary
function?

Rgds

-- 
     -- Pierre Ossman

  Linux kernel, MMC maintainer        http://www.kernel.org
  PulseAudio, core developer          http://pulseaudio.org
  rdesktop, core developer          http://www.rdesktop.org

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