feature/bitrot: Show whether scrub is in progress/idle

Bitrot scrub status shows whether the scrub is paused
or active. It doesn't show whether the scrubber is
actually scrubbing or waiting in the timer wheel
for the next schedule. This patch shows this status
with "In Progress" and "Idle" respectively.

Change-Id: I995d8553d1ff166503ae1e7b46282fc3ba961f0b
BUG: 1352871
Signed-off-by: Kotresh HR <khiremat@redhat.com>
Reviewed-on: http://review.gluster.org/14864
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>

3 files changed, 18 insertions, 13 deletions

diff --git a/xlators/features/bit-rot/src/bitd/bit-rot-scrub-status.h b/xlators/features/bit-rot/src/bitd/bit-rot-scrub-status.h
index 694ba0acbe3..02bd0fab04e 100644
--- a/xlators/features/bit-rot/src/bitd/bit-rot-scrub-status.h
+++ b/xlators/features/bit-rot/src/bitd/bit-rot-scrub-status.h
@@ -28,6 +28,8 @@ struct br_scrub_stats {
 
         struct         timeval scrub_end_tv;     /* Scrubbing finishing time */
 
+        int8_t         scrub_running;           /* Scrub running or not */
+
         pthread_mutex_t  lock;
 };
 
diff --git a/xlators/features/bit-rot/src/bitd/bit-rot-scrub.c b/xlators/features/bit-rot/src/bitd/bit-rot-scrub.c
index 8b95f056a16..a5885642b89 100644
--- a/xlators/features/bit-rot/src/bitd/bit-rot-scrub.c
+++ b/xlators/features/bit-rot/src/bitd/bit-rot-scrub.c
@@ -664,6 +664,7 @@ br_scrubber_entry_control (xlator_t *this)
                 if (scrub_monitor->state == BR_SCRUB_STATE_PENDING)
                         scrub_monitor->state = BR_SCRUB_STATE_ACTIVE;
                 br_scrubber_log_time (this, "started");
+                priv->scrub_stat.scrub_running = 1;
         }
         UNLOCK (&scrub_monitor->lock);
 }
@@ -680,6 +681,7 @@ br_scrubber_exit_control (xlator_t *this)
         LOCK (&scrub_monitor->lock);
         {
                 br_scrubber_log_time (this, "finished");
+                priv->scrub_stat.scrub_running = 0;
 
                 if (scrub_monitor->state == BR_SCRUB_STATE_ACTIVE) {
                         (void) br_fsscan_activate (this);
diff --git a/xlators/features/bit-rot/src/bitd/bit-rot.c b/xlators/features/bit-rot/src/bitd/bit-rot.c
index ed436c34dc4..174af2b6a15 100644
--- a/xlators/features/bit-rot/src/bitd/bit-rot.c
+++ b/xlators/features/bit-rot/src/bitd/bit-rot.c
@@ -1536,7 +1536,6 @@ br_scrubber_status_get (xlator_t *this, dict_t **dict)
 {
 
         int                    ret          = -1;
-        char                   key[256]     = {0,};
         br_private_t          *priv         = NULL;
         struct br_scrub_stats *scrub_stats  = NULL;
 
@@ -1552,33 +1551,35 @@ br_scrubber_status_get (xlator_t *this, dict_t **dict)
                               "files");
         }
 
-        memset (key, 0, 256);
-        snprintf (key, 256, "scrubbed-files");
-        ret = dict_set_uint64 (*dict, key, scrub_stats->scrubbed_files);
+        ret = dict_set_int8 (*dict, "scrub-running",
+                             scrub_stats->scrub_running);
+        if (ret) {
+                gf_msg_debug (this->name, 0, "Failed setting scrub_running "
+                              "entry to the dictionary");
+        }
+
+        ret = dict_set_uint64 (*dict, "scrubbed-files",
+                               scrub_stats->scrubbed_files);
         if (ret) {
                 gf_msg_debug (this->name, 0, "Failed to setting scrubbed file "
                               "entry to the dictionary");
         }
 
-        memset (key, 0, 256);
-        snprintf (key, 256, "unsigned-files");
-        ret = dict_set_uint64 (*dict, key, scrub_stats->unsigned_files);
+        ret = dict_set_uint64 (*dict, "unsigned-files",
+                               scrub_stats->unsigned_files);
         if (ret) {
                 gf_msg_debug (this->name, 0, "Failed to set unsigned file count"
                               " entry to the dictionary");
         }
 
-        memset (key, 0, 256);
-        snprintf (key, 256, "scrub-duration");
-        ret = dict_set_uint64 (*dict, key, scrub_stats->scrub_duration);
+        ret = dict_set_uint64 (*dict, "scrub-duration",
+                               scrub_stats->scrub_duration);
         if (ret) {
                 gf_msg_debug (this->name, 0, "Failed to set scrub duration"
                               " entry to the dictionary");
         }
 
-        memset (key, 0, 256);
-        snprintf (key, 256, "last-scrub-time");
-        ret = dict_set_dynstr_with_alloc (*dict, key,
+        ret = dict_set_dynstr_with_alloc (*dict, "last-scrub-time",
                                           scrub_stats->last_scrub_time);
         if (ret) {
                 gf_msg_debug (this->name, 0, "Failed to set "