These two patches allow conversion of a written range of a file into back into unwritten state. The first patch converts page cache helper functions to use the correct range primitives as we need to be able to toss (invalidate) pages only within the range specified, not to to the end of the file as it currently uses. The actual conversion also preallocates any holes in the range, so it turns the entire range requested into allocated, unwritten extents. I also have a patch that adds this functionality to fallocate(). I haven't tested that at all, but if this is something we want to support, I'd suggest that we want fallocate to be able to do it... _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
