pmem: add proper fencing to pmem_rw_page()
Orabug:
22913653
pmem_rw_page() needs to call wmb_pmem() on writes to make sure that the
newly written data is durable. This flow was added to pmem_rw_bytes()
and pmem_make_request() with this commit:
commit
61031952f4c8 ("arch, x86: pmem api for ensuring durability of
persistent memory updates")
...the pmem_rw_page() path was missed.
Cc: <stable@vger.kernel.org>
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
(cherry picked from commit
ba8fe0f85e15d047686caf8a42463b592c63c98c)
Signed-off-by: Dan Duval <dan.duval@oracle.com>