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(parent: 84f8bd8) | patch
dm stats: report precise_timestamps and histogram in @stats_list output
authorMikulas Patocka <mpatocka@redhat.com>
Tue, 18 Aug 2015 20:26:16 +0000 (16:26 -0400)
committerMike Snitzer <snitzer@redhat.com>
Tue, 18 Aug 2015 21:20:03 +0000 (17:20 -0400)
commitbd49784fd1e8f42c7600fbfa206361324857f373
tree238d475c49cc50ba1543e6692553a6a0f3b384e8tree | snapshot
parent84f8bd86cc8977c344df572169f7ec10b8188cfacommit | diff
dm stats: report precise_timestamps and histogram in @stats_list output

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
Documentation/device-mapper/statistics.txt diff | blob | blame | history
drivers/md/dm-stats.c diff | blob | blame | history
include/uapi/linux/dm-ioctl.h diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)