linux-kernel - Re: fs/Kconfig question regarding CONFIG

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Date:	Tue, 17 Oct 2006 21:21:44 +0200 (MEST)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Valdis.Kletnieks@...edu
cc:	jens.axboe@...cle.com,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: fs/Kconfig question regarding CONFIG_BLOCK


>> fs/Kconfig has:
>> 
>> if BLOCK
>> menu "DOS/FAT/NT Filesystems"
>
>> Why is it wrapped into BLOCK, or, why are all of the other filesystems 
>> which require a block device?
>
>Some filesystems (such as /proc, /sys, and so on - basicaly, the "pseudo" file
>systems) are able to stand by themselves.  Filesystems that read actual blocks
>of data off actual media will require the services of the block layer to do
>that.  So if you've built a tiny embedded kernel that doesn't include the block
>layer, you can't read those sorts of filesystems....

Never mind, I see that some filesystems have 'depends on BLOCK' instead 
of being wrapped into if BLOCK. Not really consistent but whatever.


	-`J'
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