Re: fs/Kconfig question regarding CONFIG_BLOCK

From: Valdis . Kletnieks
Date: Tue Oct 17 2006 - 14:58:40 EST


On Tue, 17 Oct 2006 20:41:41 +0200, Jan Engelhardt said:

> 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....


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