On Fri, 30 Apr 2010, James Bottomley wrote: > It's the essential patch we need to fix up our kmapping. Right at the > moment kmap of a page with a dirty cache line in userspace sees stale > data and kunmap of a page the kernel has modified will see likewise. Did you try using the version of copy_user_page_asm that uses equivalent aliasing? There is an issue with needing cache flushing noted in pgtable.h, but if this works it may be less of a hammer. Dave -- J. David Anglin dave.anglin@xxxxxxxxxxxxxx National Research Council of Canada (613) 990-0752 (FAX: 952-6602) -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
