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authorDan Williams <dan.j.williams@intel.com>2019-03-11 12:13:42 -0700
committerDan Williams <dan.j.williams@intel.com>2019-03-11 12:13:42 -0700
commit451fed24e99d5368aab4a8977583710b692a15f0 (patch)
tree03e06cee492f41aa9e599367cfc8b390d3a128c5 /drivers/nvdimm/dimm_devs.c
parentebe9f6f19d80d8978d16078dff3d5bd93ad8d102 (diff)
parent075c3fdd56ac2e077f928353daf786341bbb6a52 (diff)
downloadblackbird-op-linux-451fed24e99d5368aab4a8977583710b692a15f0.tar.gz
blackbird-op-linux-451fed24e99d5368aab4a8977583710b692a15f0.zip
Merge branch 'for-5.1/libnvdimm' into libnvdimm-for-next
Merge miscellaneous libnvdimm sub-system updates for v5.1. Highlights include: * Support for the Hyper-V family of device-specific-methods (DSMs) * Several fixes and workarounds for Hyper-V compatibility. * Fix for the support to cache the dirty-shutdown-count at init.
Diffstat (limited to 'drivers/nvdimm/dimm_devs.c')
-rw-r--r--drivers/nvdimm/dimm_devs.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c
index efe412a6b5b9..91b9abbf689c 100644
--- a/drivers/nvdimm/dimm_devs.c
+++ b/drivers/nvdimm/dimm_devs.c
@@ -11,6 +11,7 @@
* General Public License for more details.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/moduleparam.h>
#include <linux/vmalloc.h>
#include <linux/device.h>
#include <linux/ndctl.h>
@@ -25,6 +26,10 @@
static DEFINE_IDA(dimm_ida);
+static bool noblk;
+module_param(noblk, bool, 0444);
+MODULE_PARM_DESC(noblk, "force disable BLK / local alias support");
+
/*
* Retrieve bus and dimm handle and return if this bus supports
* get_config_data commands
@@ -551,6 +556,8 @@ struct nvdimm *__nvdimm_create(struct nvdimm_bus *nvdimm_bus,
nvdimm->dimm_id = dimm_id;
nvdimm->provider_data = provider_data;
+ if (noblk)
+ flags |= 1 << NDD_NOBLK;
nvdimm->flags = flags;
nvdimm->cmd_mask = cmd_mask;
nvdimm->num_flush = num_flush;
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