linux-kernel - [PATCH] taskstats: use genl_register_family_with

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Message-Id: <1280136123-17605-1-git-send-email-xiaosuo@gmail.com>
Date:	Mon, 26 Jul 2010 17:22:03 +0800
From:	Changli Gao <xiaosuo@...il.com>
To:	Balbir Singh <balbir@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, Changli Gao <xiaosuo@...il.com>
Subject: [PATCH] taskstats: use genl_register_family_with_ops()

Signed-off-by: Changli Gao <xiaosuo@...il.com>
----
 kernel/taskstats.c |   37 +++++++++++++------------------------
 1 file changed, 13 insertions(+), 24 deletions(-)
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 11281d5..d637a12 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -578,16 +578,17 @@ err:
 	nlmsg_free(rep_skb);
 }
 
-static struct genl_ops taskstats_ops = {
-	.cmd		= TASKSTATS_CMD_GET,
-	.doit		= taskstats_user_cmd,
-	.policy		= taskstats_cmd_get_policy,
-};
-
-static struct genl_ops cgroupstats_ops = {
-	.cmd		= CGROUPSTATS_CMD_GET,
-	.doit		= cgroupstats_user_cmd,
-	.policy		= cgroupstats_cmd_get_policy,
+static struct genl_ops taskstats_ops[] = {
+	{
+		.cmd		= TASKSTATS_CMD_GET,
+		.doit		= taskstats_user_cmd,
+		.policy		= taskstats_cmd_get_policy,
+	},
+	{
+		.cmd		= CGROUPSTATS_CMD_GET,
+		.doit		= cgroupstats_user_cmd,
+		.policy		= cgroupstats_cmd_get_policy,
+	},
 };
 
 /* Needed early in initialization */
@@ -606,26 +607,14 @@ static int __init taskstats_init(void)
 {
 	int rc;
 
-	rc = genl_register_family(&family);
+	rc = genl_register_family_with_ops(&family, taskstats_ops,
+					   ARRAY_SIZE(taskstats_ops));
 	if (rc)
 		return rc;
 
-	rc = genl_register_ops(&family, &taskstats_ops);
-	if (rc < 0)
-		goto err;
-
-	rc = genl_register_ops(&family, &cgroupstats_ops);
-	if (rc < 0)
-		goto err_cgroup_ops;
-
 	family_registered = 1;
 	printk("registered taskstats version %d\n", TASKSTATS_GENL_VERSION);
 	return 0;
-err_cgroup_ops:
-	genl_unregister_ops(&family, &taskstats_ops);
-err:
-	genl_unregister_family(&family);
-	return rc;
 }
 
 /*
--
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