commit d77e92e270edd79a2218ce0ba5b6179ad0c93175
author Ross Zwisler <ross.zwisler@linux.intel.com> Wed Sep 09 10:29:40 2015 -0600
committer Linus Torvalds <torvalds@linux-foundation.org> Wed Sep 09 09:47:57 2015 -0700
tree 0d78eb591d71929df4ba28b302227c32ef525131
parent 26d2177e977c912863ac04f6c1a967e793ca3a56

dax: update PMD fault handler with PMEM API

As part of the v4.3 merge window the DAX code was updated by Matthew and
Kirill to handle PMD pages.  Also as part of the v4.3 merge window we
updated the DAX code to do proper PMEM flushing (commit 2765cfbb342c:
"dax: update I/O path to do proper PMEM flushing").

The additional code added by the DAX PMD patches also needs to be
updated to properly use the PMEM API.  This ensures that after a PMD
fault is handled the zeros written to the newly allocated pages are
durable on the DIMMs.

linux/dax.h is included to get rid of a bunch of sparse warnings.

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <willy@linux.intel.com>,
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Kirill Shutemov <kirill@shutemov.name>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>