Messages in this thread |  | | Date | Tue, 6 May 2003 20:49:14 +0200 | From | Jens Axboe <> | Subject | Re: [PATCH] Only use MSDOS-Partitions by default on X86 |
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On Tue, May 06 2003, Nicolas Pitre wrote: > On Tue, 6 May 2003, Jens Axboe wrote: > > > On Tue, May 06 2003, Alan Cox wrote: > > > On Maw, 2003-05-06 at 18:23, Nicolas Pitre wrote: > > > > According to Alan it's nearly possible to configure the block layer out > > > > entirely, which would be a good thing to associate with a CONFIG_DISK option > > > > too. > > > > > > David Woodhouse I believe.. > > > > Are we talking about everything below submit_bh/bio? Shouldn't be too > > hard to write a small no-block.c for that... > > The idea is to configure out everything not needed when only NFS and/or JFFS > (which doesn't rely on the block layer to work) are used. Pretty useful for > networked or embedded machines.
I see, that would indeed be a bigger job :). Just the block layer would not be hard, especially if you make the restriction that the block drivers usable would be ones that used a make_request strategy for handling requests. That would allow you to kill ll_rw_blk.c, deadline-iosched.c, and elevator.c. That's some 21k of text and 2k of data on this box.
-- Jens Axboe
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