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dm stats: report precise_timestamps and histogram in @stats_list output

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If the user selected the precise_timestamps or histogram options, report
it in the @stats_list message output.

If the user didn't select these options, no extra tokens are reported,
thus it is backward compatible with old software that doesn't know about
precise timestamps and histogram.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 4.2
This commit is contained in:
Mikulas Patocka
2015-08-18 16:26:16 -04:00
committed by Mike Snitzer
parent 84f8bd86cc
commit bd49784fd1
3 changed files with 19 additions and 3 deletions
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4
include/uapi/linux/dm-ioctl.h
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@@ -267,9 +267,9 @@ enum {
#define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
#define DM_VERSION_MAJOR 4
#define DM_VERSION_MINOR 32
#define DM_VERSION_MINOR 33
#define DM_VERSION_PATCHLEVEL 0
#define DM_VERSION_EXTRA "-ioctl (2015-6-26)"
#define DM_VERSION_EXTRA "-ioctl (2015-8-18)"
/* Status bits */
#define DM_READONLY_FLAG (1 << 0) /* In/Out */