Re: [PATCH 2.6.21] cramfs: add cramfs Linear XIP

On Wed, Jun 06, 2007 at 09:07:16AM -0700, Jared Hulbert wrote:
I estimate something on the order 5-10 million Linux phones use
something similar to these patches. I wonder if there are that many
provable users of of the simple cramfs. This is where the community
has taken cramfs.

This is what a community disjoint to mainline development has hacked
cramfs in their trees into. Not a good rationale. This whole
"but we've always done it" attitute is a little annoying, really.

FYI: Cartsten had an xip fs for s390 aswell, and that evolved into
the filemap.c bits after a lot of rework an quite a few round of
review.

Nevertheless, I understand your point. I wrote AXFS in part because
the hacks required to do XIP on cramfs where ugly, hacky, and complex.

I can't find a reference to AXFS anywhere in this thread.

Please
use something like the existing ext2 xip mode instead of add support
to romfs using the generic filemap methods.

What?? You mean like use xip_file_mmap() and implement
get_xip_page()? Did you read my latest patch?

Yes. This is the highlevel way to go, just please don't hack it into
cramfs.


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