X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fnvdimm%2Fpmem.c;h=0ba6a978f227e76a4b0c27046e2736d43cf37e45;hb=e6827bafd6b56fa25ec380840fe6f47e9a213fbe;hp=b9525385c0dc35532ceaed6087c3f36ea2697ae0;hpb=d25ed277fbd4c20247286fda2014ae6a2b88316b;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index b9525385c0dc..0ba6a978f227 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -92,6 +92,8 @@ static int pmem_rw_page(struct block_device *bdev, sector_t sector,
 	struct pmem_device *pmem = bdev->bd_disk->private_data;
 
 	pmem_do_bvec(pmem, page, PAGE_CACHE_SIZE, 0, rw, sector);
+	if (rw & WRITE)
+		wmb_pmem();
 	page_endio(page, rw & WRITE, 0);
 
 	return 0;