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| author | Vishal Verma <vishal.l.verma@intel.com> | 2015-12-25 05:21:43 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-01-09 19:39:03 +0300 |
| commit | 0caeef63e6d2f866d85bb507bf63e0ce8ec91cef (patch) | |
| tree | dbd09f34ab455ca2dfc8c246ff7d19d17edd1de7 /drivers/nvdimm/pmem.c | |
| parent | d26f73f083ed6fbea7fd3fdbacb527b7f3e75ac0 (diff) | |
| download | linux-0caeef63e6d2f866d85bb507bf63e0ce8ec91cef.tar.xz | |
libnvdimm: Add a poison list and export badblocks
During region creation, perform Address Range Scrubs (ARS) for the SPA
(System Physical Address) ranges to retrieve known poison locations from
firmware. Add a new data structure 'nd_poison' which is used as a list
in nvdimm_bus to store these poison locations.
When creating a pmem namespace, if there is any known poison associated
with its physical address space, convert the poison ranges to bad sectors
that are exposed using the badblocks interface.
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/pmem.c')
| -rw-r--r-- | drivers/nvdimm/pmem.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 8ee79893d2f5..5b95043443a3 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -27,6 +27,7 @@ #include <linux/slab.h> #include <linux/pmem.h> #include <linux/nd.h> +#include "nd-core.h" #include "pfn.h" #include "nd.h" @@ -168,6 +169,7 @@ static int pmem_attach_disk(struct device *dev, { int nid = dev_to_node(dev); struct gendisk *disk; + int ret; pmem->pmem_queue = blk_alloc_queue_node(GFP_KERNEL, nid); if (!pmem->pmem_queue) @@ -196,6 +198,10 @@ static int pmem_attach_disk(struct device *dev, set_capacity(disk, (pmem->size - pmem->data_offset) / 512); pmem->pmem_disk = disk; + ret = nvdimm_namespace_add_poison(disk, pmem->data_offset, ndns); + if (ret) + return ret; + add_disk(disk); revalidate_disk(disk); |