diff options
Diffstat (limited to 'drivers/nvdimm/region.c')
| -rw-r--r-- | drivers/nvdimm/region.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/nvdimm/region.c b/drivers/nvdimm/region.c index 869a886c292e..23c4307d254c 100644 --- a/drivers/nvdimm/region.c +++ b/drivers/nvdimm/region.c @@ -131,6 +131,31 @@ static void nd_region_notify(struct device *dev, enum nvdimm_event event) device_for_each_child(dev, &event, child_notify); } +int nvdimm_region_badblocks_clear(struct device *dev, void *data) +{ + struct resource *res = (struct resource *)data; + struct nd_region *nd_region; + resource_size_t ndr_end; + sector_t sector; + + /* make sure device is a region */ + if (!is_nd_pmem(dev)) + return 0; + + nd_region = to_nd_region(dev); + ndr_end = nd_region->ndr_start + nd_region->ndr_size - 1; + + /* make sure we are in the region */ + if (res->start < nd_region->ndr_start || res->end > ndr_end) + return 0; + + sector = (res->start - nd_region->ndr_start) >> 9; + badblocks_clear(&nd_region->bb, sector, resource_size(res) >> 9); + + return 0; +} +EXPORT_SYMBOL_GPL(nvdimm_region_badblocks_clear); + static struct nd_device_driver nd_region_driver = { .probe = nd_region_probe, .remove = nd_region_remove, |