xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

libnvdimm: add support for clear poison list and badblocks for device dax

Browse Source 
Providing mechanism to clear poison list via the ndctl ND_CMD_CLEAR_ERROR
call. We will update the poison list and also the badblocks at region level
if the region is in dax mode or in pmem mode and not active. In other
words we force badblocks to be cleared through write requests if the
address is currently accessed through a block device, otherwise it can
only be done via the ioctl+dsm path.

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>
This commit is contained in:
Dave Jiang
2017-04-07 15:33:31 -07:00
committed by Dan Williams
parent 802f4be6fe
commit 006358b35c
4 changed files with 118 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
include/linux/libnvdimm.h
View File

@@ -120,7 +120,9 @@ static inline struct nd_blk_region_desc *to_blk_region_desc(
}
int nvdimm_bus_add_poison(struct nvdimm_bus *nvdimm_bus, u64 addr, u64 length);
void nvdimm_clear_from_poison_list(struct nvdimm_bus *nvdimm_bus,
void nvdimm_forget_poison(struct nvdimm_bus *nvdimm_bus,
phys_addr_t start, unsigned int len);
void __nvdimm_forget_poison(struct nvdimm_bus *nvdimm_bus,
phys_addr_t start, unsigned int len);
struct nvdimm_bus *nvdimm_bus_register(struct device *parent,
struct nvdimm_bus_descriptor *nfit_desc);
@@ -162,4 +164,7 @@ void nd_region_release_lane(struct nd_region *nd_region, unsigned int lane);
u64 nd_fletcher64(void *addr, size_t len, bool le);
void nvdimm_flush(struct nd_region *nd_region);
int nvdimm_has_flush(struct nd_region *nd_region);
int nvdimm_region_badblocks_clear(struct device *dev, void *data);
void __nvdimm_bus_badblocks_clear(struct nvdimm_bus *nvdimm_bus,
struct resource *res);
#endif /* __LIBNVDIMM_H__ */