lvm2/0008-dmsetup-fix-stats-report-command-output.patch

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2019-09-30 11:03:04 -04:00
From fcae18ceb9a6db7182abbbea379d45cebb901313 Mon Sep 17 00:00:00 2001
From: root <root@localhost.localdomain>
Date: Wed, 13 Mar 2019 14:14:43 +0800
Subject: [PATCH 07/17] dmsetup: fix stats report command output
Since the stats handle is neither bound nor listed before the
attempt to call dm_stats_get_nr_regions(), it will always return
zero: this prevents reporting of any dmstats regions on any
device.
Remove the dm_stats_get_nr_regions() check and instead rely on
the correct return status from dm_stats_populate() which only
returns 0 in the case that there are regions to inspect (and
which logs a specific error for all other cases).
Reported-by: Bryan Gurney <bgurney@redhat.com>
---
tools/dmsetup.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/tools/dmsetup.c b/tools/dmsetup.c
index af70a02..aca595d 100644
--- a/tools/dmsetup.c
+++ b/tools/dmsetup.c
@@ -910,17 +910,13 @@ static int _display_info_cols(struct dm_task *dmt, struct dm_info *info)
if (!(obj.stats = dm_stats_create(DM_STATS_PROGRAM_ID)))
goto_out;
- if (!dm_stats_get_nr_regions(obj.stats)) {
- log_debug("Skipping %s with no regions.", dm_task_get_name(dmt));
+ dm_stats_bind_devno(obj.stats, info->major, info->minor);
+
+ if (!dm_stats_populate(obj.stats, _program_id, DM_STATS_REGIONS_ALL)) {
r = 1;
goto out;
}
- dm_stats_bind_devno(obj.stats, info->major, info->minor);
-
- if (!dm_stats_populate(obj.stats, _program_id, DM_STATS_REGIONS_ALL))
- goto_out;
-
/* Update timestamps and handle end-of-interval accounting. */
_update_interval_times();
--
2.19.1