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authorDan Williams <dan.j.williams@intel.com>2017-09-25 11:01:31 -0700
committerDan Williams <dan.j.williams@intel.com>2017-09-28 09:10:14 -0700
commitd34cb808402898e53b9a9bcbbedd01667a78723b (patch)
treed4ea0dbd680af3ddf3b3ec5655916a76fa21f57b /drivers/nvdimm/dimm_devs.c
parente19b205be43d11bff638cad4487008c48d21c103 (diff)
libnvdimm, dimm: clear 'locked' status on successful DIMM enable
If we successfully enable a DIMM then it must not be locked and we can clear the label-read failure condition. Otherwise, we need to reload the entire bus provider driver to achieve the same effect, and that can disrupt unrelated DIMMs and namespaces. Fixes: 9d62ed965118 ("libnvdimm: handle locked label storage areas") Cc: <stable@vger.kernel.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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 f0d1b7e5de01..5f1385b96b13 100644
--- a/drivers/nvdimm/dimm_devs.c
+++ b/drivers/nvdimm/dimm_devs.c
@@ -200,6 +200,13 @@ void nvdimm_set_locked(struct device *dev)
set_bit(NDD_LOCKED, &nvdimm->flags);
}
+void nvdimm_clear_locked(struct device *dev)
+{
+ struct nvdimm *nvdimm = to_nvdimm(dev);
+
+ clear_bit(NDD_LOCKED, &nvdimm->flags);
+}
+
static void nvdimm_release(struct device *dev)
{
struct nvdimm *nvdimm = to_nvdimm(dev);