On Fri, Sep 14, 2018 at 03:14:33PM +0200, David Sterba wrote: > On Wed, Sep 12, 2018 at 06:06:22AM +0800, Liu Bo wrote: > > As VFS has called ->invalidatepage() to get all ordered extents done > > and truncated all page cache pages, wait_ordered_range() is just a > > noop. > > Agreed, though looking up the exact points when there are no pages to be > waited for took me some time. More references and hints in the changelog > would be good. I'll add the patch to misc-next so it can be tested, but > please send me an update if you have idea how to rephrase the changelog. > Thanks. > > Reviewed-by: David Sterba <dsterba@xxxxxxxx> OK, I'll add some call stack, hopefully can make it better. thanks, -liubo
