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| author | Dave Jiang <dave.jiang@intel.com> | 2017-04-07 15:33:20 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-04-12 21:56:42 -0700 |
| commit | 6a6bef90425e8cba7c53919d923240559b7f247c (patch) | |
| tree | 4ba907c618208b79cb19296353edd1c4011de773 /drivers/nvdimm/region.c | |
| parent | 3c87f372695592bf86e9dab7b1ec7d439fda577b (diff) | |
| download | linux-6a6bef90425e8cba7c53919d923240559b7f247c.tar.gz linux-6a6bef90425e8cba7c53919d923240559b7f247c.tar.bz2 linux-6a6bef90425e8cba7c53919d923240559b7f247c.zip | |
libnvdimm: add mechanism to publish badblocks at the region level
badblocks sysfs file will be export at region level. When nvdimm event
notifier happens for NVDIMM_REVALIATE_POISON, the badblocks in the
region will be updated.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/region.c')
| -rw-r--r-- | drivers/nvdimm/region.c | 24 |
1 files changed, 24 insertions, 0 deletions
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); } |