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libnvdimm, pmem: Add sysfs notifications to badblocks

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Sysfs "badblocks" information may be updated during run-time that:
 - MCE, SCI, and sysfs "scrub" may add new bad blocks
 - Writes and ioctl() may clear bad blocks

Add support to send sysfs notifications to sysfs "badblocks" file
under region and pmem directories when their badblocks information
is re-evaluated (but is not necessarily changed) during run-time.

Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Linda Knippers <linda.knippers@hpe.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Toshi Kani
2017-06-12 16:25:11 -06:00
committed by Dan Williams
parent a117699c6c
commit 975750a98c
5 changed files with 29 additions and 2 deletions
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1
drivers/nvdimm/nd.h
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@@ -161,6 +161,7 @@ struct nd_region {
u64 ndr_start;
int id, num_lanes, ro, numa_node;
void *provider_data;
struct kernfs_node *bb_state;
struct badblocks bb;
struct nd_interleave_set *nd_set;
struct nd_percpu_lane __percpu *lane;