Messages in this thread | | | Date | Wed, 6 Jun 2007 11:26:38 -0700 | From | "Jared Hulbert" <> | Subject | Re: [PATCH 2.6.21] cramfs: add cramfs Linear XIP |
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> 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.
It is that disjointedness we are trying to address.
> 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.
Right. So now we leverage this filemap_xip.c in cramfs. Why is this a problem?
> > 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.
No, it's not here. There's a year old thread referencing it.
> > > 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.
Right, so this latest patch _does_ implement get_xip_page() and xip_file_mmap(). Why not hack it into cramfs? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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