On Mon 11-11-19 16:43:20, Andrew Morton wrote: > On Mon, 11 Nov 2019 16:34:52 -0800 ira.weiny@xxxxxxxxx wrote: > > > From: Ira Weiny <ira.weiny@xxxxxxxxx> > > > > swap_activate() and swap_deactivate() have nothing to do with > > address spaces. We want to eventually make the address space operations > > dynamic to switch inode flags on the fly. > > What does this mean? See my reply to Christoph [1]. Ira wants to make switching inodes between DAX and non-DAX mode work which means switching also address_space_operations pointer in the mapping. Honza [1] lore.kernel.org/r/20191112133055.GI1241@xxxxxxxxxxxxxx -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR