dax: remove default copy_from_iter fallback
authorDan Williams <dan.j.williams@intel.com>
Tue, 27 Jun 2017 20:06:22 +0000 (13:06 -0700)
committerDan Williams <dan.j.williams@intel.com>
Tue, 27 Jun 2017 23:44:27 +0000 (16:44 -0700)
commit5d61e43b3975c0582003329d9de9d5e85abf5d33
tree259546b1a8fd2b8cf50d40698edfaeebdb241e00
parentc9e582aa689f5418ca30e1e7a975039772c3a757
dax: remove default copy_from_iter fallback

Require all dax-drivers to register a ->copy_from_iter() operation so
that it is clear which dax_operations are optional and which must be
implemented for filesystem-dax to operate.

Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
arch/powerpc/sysdev/axonram.c
drivers/block/brd.c
drivers/dax/super.c
drivers/s390/block/dcssblk.c
include/linux/dax.h