On Thu, 20 Apr 2006, Zach Brown wrote: > David Howells wrote: > > The attached patch adds a new VMA operation to notify a filesystem or other > > driver about the MMU generating a fault because userspace attempted to write > > to a page mapped through a read-only PTE. > > This will almost certainly help OCFS2 get shared writable mmap() right, > too, though it probably won't be the whole story. This is also required by NTFS for a correct implementation of "mmap write into sparse region on ntfs volume with cluster size > PAGE_CACHE_SIZE". Best regards, Anton -- Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @) Unix Support, Computing Service, University of Cambridge, CB2 3QH, UK Linux NTFS maintainer, http://www.linux-ntfs.org/
