netdev - [PATCH net-next 04/14] lib: objagg: add root count to stats

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Message-ID: <20190207112211.10375-5-idosch@mellanox.com>
Date:   Thu, 7 Feb 2019 11:22:47 +0000
From:   Ido Schimmel <idosch@...lanox.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        Jiri Pirko <jiri@...lanox.com>, mlxsw <mlxsw@...lanox.com>,
        Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 04/14] lib: objagg: add root count to stats

From: Jiri Pirko <jiri@...lanox.com>

Count number of roots and add it to stats. It is handy for the library
user to have this stats available as it can act upon it without
counting roots itself.

Signed-off-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
 include/linux/objagg.h | 1 +
 lib/objagg.c           | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/include/linux/objagg.h b/include/linux/objagg.h
index a675286df1af..78021777df46 100644
--- a/include/linux/objagg.h
+++ b/include/linux/objagg.h
@@ -42,6 +42,7 @@ struct objagg_obj_stats_info {
 };
 
 struct objagg_stats {
+	unsigned int root_count;
 	unsigned int stats_info_count;
 	struct objagg_obj_stats_info stats_info[];
 };
diff --git a/lib/objagg.c b/lib/objagg.c
index befe8a47d080..781f41c3c47d 100644
--- a/lib/objagg.c
+++ b/lib/objagg.c
@@ -621,6 +621,8 @@ const struct objagg_stats *objagg_stats_get(struct objagg *objagg)
 		objagg_stats->stats_info[i].objagg_obj = objagg_obj;
 		objagg_stats->stats_info[i].is_root =
 					objagg_obj_is_root(objagg_obj);
+		if (objagg_stats->stats_info[i].is_root)
+			objagg_stats->root_count++;
 		i++;
 	}
 	objagg_stats->stats_info_count = i;
@@ -1031,6 +1033,8 @@ objagg_hints_stats_get(struct objagg_hints *objagg_hints)
 	list_for_each_entry(hnode, &objagg_hints->node_list, list) {
 		memcpy(&objagg_stats->stats_info[i], &hnode->stats_info,
 		       sizeof(objagg_stats->stats_info[0]));
+		if (objagg_stats->stats_info[i].is_root)
+			objagg_stats->root_count++;
 		i++;
 	}
 	objagg_stats->stats_info_count = i;
-- 
2.20.1