Re: fuse, get_user_pages, flush_anon_page, aliasing caches and all that again
From: Miklos Szeredi
Date: Sun Dec 31 2006 - 07:25:50 EST
> I'm willing to do that - and I guess this means we can probably do this
> instead of walking the list of VMAs for the shared mapping, thereby
> hitting both anonymous and shared mappings with the same code?
But for the get_user_pages() case there's no point, is there? The VMA
and the virtual address is already available, so trying to find it
again through RMAP doesn't much make sense.
Users of get_user_pages() don't care about any other mappings (maybe
ptrace does, I don't know) only about one single user mapping and one
So using flush_dcache_page() there is an overkill, trying to teach it
about anonymous pages is not the real solution, flush_dcache_page()
was never meant to be used on anything but file mapped pages.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/