nfit, libnvdimm: allow an ARS scrub to be triggered on demand

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Normally, an ARS (Address Range Scrub) only happens at
boot/initialization time. There can however arise situations where a
bus-wide rescan is needed - notably, in the case of discovering a latent
media error, we should do a full rescan to figure out what other sectors
are bad, and thus potentially avoid triggering an mce on them in the
future. Also provide a sysfs trigger to start a bus-wide scrub.

Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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Vishal Verma 2016-07-23 21:51:42 -07:00 • committed by Dan Williams

parent 18515942d6

commit 37b137ff8c

4 changed files with 165 additions and 8 deletions

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161

drivers/acpi/nfit.c

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4

drivers/acpi/nfit.h

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7

drivers/nvdimm/core.c

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1

include/linux/libnvdimm.h

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