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libnvdimm, label: add v1.2 interleave-set-cookie algorithm

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The interleave-set-cookie algorithm is extended to incorporate all the
same components that are used to generate an nvdimm unique-id. For
backwards compatibility we still maintain the old v1.1 definition.

Reported-by: Nicholas Moulin <nicholas.w.moulin@intel.com>
Reported-by: Kaushik Kanetkar <kaushik.a.kanetkar@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams
2017-06-04 10:59:15 +09:00
parent 564e871aa6
commit c12c48ce86
6 changed files with 104 additions and 12 deletions
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5
include/linux/libnvdimm.h
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@@ -71,7 +71,10 @@ struct nd_cmd_desc {
};
struct nd_interleave_set {
u64 cookie;
/* v1.1 definition of the interleave-set-cookie algorithm */
u64 cookie1;
/* v1.2 definition of the interleave-set-cookie algorithm */
u64 cookie2;
/* compatibility with initial buggy Linux implementation */
u64 altcookie;
};