libnvdimm, pmem: use nvdimm_flush() for namespace I/O writes

nsio_rw_bytes() is used to write info block metadata to the namespace,
so it should trigger a flush after every write.  Replace wmb_pmem() with
nvdimm_flush() in this path.

Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c
index 9997ff9..d5dc80c 100644 (file)
--- a/drivers/nvdimm/claim.c
+++ b/drivers/nvdimm/claim.c
@@ -240,7 +240,7 @@ static int nsio_rw_bytes(struct nd_namespace_common *ndns,
                return memcpy_from_pmem(buf, nsio->addr + offset, size);
        } else {
                memcpy_to_pmem(nsio->addr + offset, buf, size);
-               wmb_pmem();
+               nvdimm_flush(to_nd_region(ndns->dev.parent));
        }
 
        return 0;