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authorDan Williams <dan.j.williams@intel.com>2017-06-04 04:59:15 +0300
committerDan Williams <dan.j.williams@intel.com>2017-06-16 00:31:39 +0300
commitc12c48ce869d72029d70666f615cbd8f67fc14e9 (patch)
treec38e0587856fdaf94d0401cf644aae05c519804a /drivers/nvdimm/namespace_devs.c
parent564e871aa66f548a947b23808d3140f326381f0c (diff)
downloadlinux-c12c48ce869d72029d70666f615cbd8f67fc14e9.tar.xz
libnvdimm, label: add v1.2 interleave-set-cookie algorithm
The interleave-set-cookie algorithm is extended to incorporate all the same components that are used to generate an nvdimm unique-id. For backwards compatibility we still maintain the old v1.1 definition. Reported-by: Nicholas Moulin <nicholas.w.moulin@intel.com> Reported-by: Kaushik Kanetkar <kaushik.a.kanetkar@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/namespace_devs.c')
-rw-r--r--drivers/nvdimm/namespace_devs.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index 2f9dfbd2dbec..51f304fe8a52 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -1698,10 +1698,11 @@ static int select_pmem_id(struct nd_region *nd_region, u8 *pmem_id)
* @nd_label: target pmem namespace label to evaluate
*/
struct device *create_namespace_pmem(struct nd_region *nd_region,
+ struct nd_namespace_index *nsindex,
struct nd_namespace_label *nd_label)
{
+ u64 cookie = nd_region_interleave_set_cookie(nd_region, nsindex);
u64 altcookie = nd_region_interleave_set_altcookie(nd_region);
- u64 cookie = nd_region_interleave_set_cookie(nd_region);
struct nd_label_ent *label_ent;
struct nd_namespace_pmem *nspm;
struct nd_mapping *nd_mapping;
@@ -2108,7 +2109,11 @@ static struct device **scan_labels(struct nd_region *nd_region)
goto err;
devs[count++] = dev;
} else {
- dev = create_namespace_pmem(nd_region, nd_label);
+ struct nvdimm_drvdata *ndd = to_ndd(nd_mapping);
+ struct nd_namespace_index *nsindex;
+
+ nsindex = to_namespace_index(ndd, ndd->ns_current);
+ dev = create_namespace_pmem(nd_region, nsindex, nd_label);
if (IS_ERR(dev)) {
switch (PTR_ERR(dev)) {
case -EAGAIN: