libnvdimm, pmem: clear poison on write

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If a write is directed at a known bad block perform the following:

1/ write the data

2/ send a clear poison command

3/ invalidate the poison out of the cache hierarchy

Cc: <x86@kernel.org>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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Dan Williams 2016-03-08 07:16:07 -08:00

parent b5ebc8ec69

commit 59e6473980

5 changed files with 100 additions and 1 deletions

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19

include/linux/pmem.h

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