libnvdimm, pmem: flush posted-write queues on shutdown
Commit writes to media on system shutdown or pmem driver unload.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 9d9c1be..8bfc6ac 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -349,9 +349,16 @@
{
if (is_nd_btt(dev))
nvdimm_namespace_detach_btt(to_nd_btt(dev));
+ nvdimm_flush(to_nd_region(dev->parent));
+
return 0;
}
+static void nd_pmem_shutdown(struct device *dev)
+{
+ nvdimm_flush(to_nd_region(dev->parent));
+}
+
static void nd_pmem_notify(struct device *dev, enum nvdimm_event event)
{
struct pmem_device *pmem = dev_get_drvdata(dev);
@@ -391,6 +398,7 @@
.probe = nd_pmem_probe,
.remove = nd_pmem_remove,
.notify = nd_pmem_notify,
+ .shutdown = nd_pmem_shutdown,
.drv = {
.name = "nd_pmem",
},