On Wed, Dec 06, 2017 at 01:17:52PM +1100, Dave Chinner wrote: > On Wed, Dec 06, 2017 at 01:53:41AM +0000, Matthew Wilcox wrote: > > Huh, you've caught a couple of problems that 0day hasn't sent me yet. Try turning on DAX or TRANSPARENT_HUGEPAGE. Thanks! > > Dax is turned on, CONFIG_TRANSPARENT_HUGEPAGE is not. > > Looks like nothing is setting CONFIG_RADIX_TREE_MULTIORDER, which is > what xas_set_order() is hidden under. > > Ah, CONFIG_ZONE_DEVICE turns it on, not CONFIG_DAX/CONFIG_FS_DAX. > > Hmmmm. That seems wrong if it's used in fs/dax.c... Yes, it's my mistake for not making xas_set_order available in the !MULTIORDER case. I'm working on a fix now. > What a godawful mess Kconfig has turned into. I'm not going to argue with that ...
