On Wed, 16 May 2007, Nick Piggin wrote:
Well sure, if that's all Christoph is worried about, then it isn't
really valid because in generic code we have to follow the architecture
abstraction API -- there is no "non highmem platform" in generic code :)
But there is a default KM_USER0 that is used in many functions.
F.e.
filemap_copy_from_user *_iovec xip_truncate_page clear_user_highpage clear_highpage copy_user_highpage copy_highpage
So explicitly mentioning KM_USER0 in every function call is not a requirement.