diff options
| -rw-r--r-- | drivers/nvdimm/nd.h | 1 | ||||
| -rw-r--r-- | drivers/nvdimm/region.c | 24 | ||||
| -rw-r--r-- | drivers/nvdimm/region_devs.c | 19 |
3 files changed, 44 insertions, 0 deletions
diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h index 2a99c83aa19f..c3b33cf655fb 100644 --- a/drivers/nvdimm/nd.h +++ b/drivers/nvdimm/nd.h @@ -154,6 +154,7 @@ struct nd_region { u64 ndr_start; int id, num_lanes, ro, numa_node; void *provider_data; + struct badblocks bb; struct nd_interleave_set *nd_set; struct nd_percpu_lane __percpu *lane; struct nd_mapping mapping[0]; diff --git a/drivers/nvdimm/region.c b/drivers/nvdimm/region.c index 8f241772ec0b..869a886c292e 100644 --- a/drivers/nvdimm/region.c +++ b/drivers/nvdimm/region.c @@ -14,6 +14,7 @@ #include <linux/module.h> #include <linux/device.h> #include <linux/nd.h> +#include "nd-core.h" #include "nd.h" static int nd_region_probe(struct device *dev) @@ -52,6 +53,17 @@ static int nd_region_probe(struct device *dev) if (rc && err && rc == err) return -ENODEV; + if (is_nd_pmem(&nd_region->dev)) { + struct resource ndr_res; + + if (devm_init_badblocks(dev, &nd_region->bb)) + return -ENODEV; + ndr_res.start = nd_region->ndr_start; + ndr_res.end = nd_region->ndr_start + nd_region->ndr_size - 1; + nvdimm_badblocks_populate(nd_region, + &nd_region->bb, &ndr_res); + } + nd_region->btt_seed = nd_btt_create(nd_region); nd_region->pfn_seed = nd_pfn_create(nd_region); nd_region->dax_seed = nd_dax_create(nd_region); @@ -104,6 +116,18 @@ static int child_notify(struct device *dev, void *data) static void nd_region_notify(struct device *dev, enum nvdimm_event event) { + if (event == NVDIMM_REVALIDATE_POISON) { + struct nd_region *nd_region = to_nd_region(dev); + struct resource res; + + if (is_nd_pmem(&nd_region->dev)) { + res.start = nd_region->ndr_start; + res.end = nd_region->ndr_start + + nd_region->ndr_size - 1; + nvdimm_badblocks_populate(nd_region, + &nd_region->bb, &res); + } + } device_for_each_child(dev, &event, child_notify); } diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c index b7cb5066d961..3500fc84d939 100644 --- a/drivers/nvdimm/region_devs.c +++ b/drivers/nvdimm/region_devs.c @@ -448,6 +448,21 @@ static ssize_t read_only_store(struct device *dev, } static DEVICE_ATTR_RW(read_only); +static ssize_t nd_badblocks_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct nd_region *nd_region = to_nd_region(dev); + + return badblocks_show(&nd_region->bb, buf, 0); +} +static struct device_attribute dev_attr_nd_badblocks = { + .attr = { + .name = "badblocks", + .mode = S_IRUGO + }, + .show = nd_badblocks_show, +}; + static struct attribute *nd_region_attributes[] = { &dev_attr_size.attr, &dev_attr_nstype.attr, @@ -460,6 +475,7 @@ static struct attribute *nd_region_attributes[] = { &dev_attr_available_size.attr, &dev_attr_namespace_seed.attr, &dev_attr_init_namespaces.attr, + &dev_attr_nd_badblocks.attr, NULL, }; @@ -476,6 +492,9 @@ static umode_t region_visible(struct kobject *kobj, struct attribute *a, int n) if (!is_nd_pmem(dev) && a == &dev_attr_dax_seed.attr) return 0; + if (!is_nd_pmem(dev) && a == &dev_attr_nd_badblocks.attr) + return 0; + if (a != &dev_attr_set_cookie.attr && a != &dev_attr_available_size.attr) return a->mode; |