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From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org
Cc: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH 2/8] cgroup: relocate cgroup_rm_cftypes()
Date: Sat,  8 Feb 2014 11:38:23 -0500	[thread overview]
Message-ID: <1391877509-10855-3-git-send-email-tj@kernel.org> (raw)
In-Reply-To: <1391877509-10855-1-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

cftype handling is about to be revamped.  Relocate cgroup_rm_cftypes()
above cgroup_add_cftypes() in preparation.  This is pure relocation.

Signed-off-by: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
 kernel/cgroup.c | 70 ++++++++++++++++++++++++++++-----------------------------
 1 file changed, 35 insertions(+), 35 deletions(-)

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 6b96516..f718cbb 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2416,6 +2416,41 @@ static int cgroup_init_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
 }
 
 /**
+ * cgroup_rm_cftypes - remove an array of cftypes from a subsystem
+ * @cfts: zero-length name terminated array of cftypes
+ *
+ * Unregister @cfts.  Files described by @cfts are removed from all
+ * existing cgroups and all future cgroups won't have them either.  This
+ * function can be called anytime whether @cfts' subsys is attached or not.
+ *
+ * Returns 0 on successful unregistration, -ENOENT if @cfts is not
+ * registered.
+ */
+int cgroup_rm_cftypes(struct cftype *cfts)
+{
+	struct cftype *found = NULL;
+	struct cftype_set *set;
+
+	if (!cfts || !cfts[0].ss)
+		return -ENOENT;
+
+	cgroup_cfts_prepare();
+
+	list_for_each_entry(set, &cfts[0].ss->cftsets, node) {
+		if (set->cfts == cfts) {
+			list_del(&set->node);
+			kfree(set);
+			found = cfts;
+			break;
+		}
+	}
+
+	cgroup_cfts_commit(found, false);
+	cgroup_exit_cftypes(cfts);
+	return found ? 0 : -ENOENT;
+}
+
+/**
  * cgroup_add_cftypes - add an array of cftypes to a subsystem
  * @ss: target cgroup subsystem
  * @cfts: zero-length name terminated array of cftypes
@@ -2453,41 +2488,6 @@ int cgroup_add_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
 EXPORT_SYMBOL_GPL(cgroup_add_cftypes);
 
 /**
- * cgroup_rm_cftypes - remove an array of cftypes from a subsystem
- * @cfts: zero-length name terminated array of cftypes
- *
- * Unregister @cfts.  Files described by @cfts are removed from all
- * existing cgroups and all future cgroups won't have them either.  This
- * function can be called anytime whether @cfts' subsys is attached or not.
- *
- * Returns 0 on successful unregistration, -ENOENT if @cfts is not
- * registered.
- */
-int cgroup_rm_cftypes(struct cftype *cfts)
-{
-	struct cftype *found = NULL;
-	struct cftype_set *set;
-
-	if (!cfts || !cfts[0].ss)
-		return -ENOENT;
-
-	cgroup_cfts_prepare();
-
-	list_for_each_entry(set, &cfts[0].ss->cftsets, node) {
-		if (set->cfts == cfts) {
-			list_del(&set->node);
-			kfree(set);
-			found = cfts;
-			break;
-		}
-	}
-
-	cgroup_cfts_commit(found, false);
-	cgroup_exit_cftypes(cfts);
-	return found ? 0 : -ENOENT;
-}
-
-/**
  * cgroup_task_count - count the number of tasks in a cgroup.
  * @cgrp: the cgroup in question
  *
-- 
1.8.5.3

  parent reply	other threads:[~2014-02-08 16:38 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-08 16:38 [PATCHSET v2 cgroup/for-3.15] cgroup: cleanups after kernfs conversion Tejun Heo
     [not found] ` <1391877509-10855-1-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2014-02-08 16:38   ` [PATCH 1/8] cgroup: warn if "xattr" is specified with "sane_behavior" Tejun Heo
2014-02-08 16:38   ` Tejun Heo [this message]
2014-02-08 16:38   ` [PATCH 4/8] cgroup: simplify dynamic cftype addition and removal Tejun Heo
2014-02-08 16:38   ` [PATCH 7/8] cgroup: rename cgroupfs_root->number_of_cgroups to ->nr_cgrps and make it atomic_t Tejun Heo
2014-02-12  8:58   ` [PATCHSET v2 cgroup/for-3.15] cgroup: cleanups after kernfs conversion Li Zefan
2014-02-12 14:30   ` Tejun Heo
2014-02-08 16:38 ` [PATCH 3/8] cgroup: remove cftype_set Tejun Heo
2014-02-08 16:38 ` [PATCH 5/8] cgroup: make cgroup hold onto its kernfs_node Tejun Heo
2014-02-08 16:38 ` [PATCH 6/8] cgroup: remove cgroup->name Tejun Heo
     [not found]   ` <1391877509-10855-7-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2014-02-08 20:06     ` [PATCH v3 " Tejun Heo
2014-02-12  7:52     ` [PATCH " Li Zefan
     [not found]       ` <52FB2834.3090408-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2014-02-12  8:27         ` Tejun Heo
     [not found]           ` <20140212082713.GD7984-9pTldWuhBndy/B6EtB590w@public.gmane.org>
2014-02-12  8:52             ` Li Zefan
2014-02-08 16:38 ` [PATCH 8/8] cgroup: remove cgroupfs_root->refcnt Tejun Heo
  -- strict thread matches above, loose matches on Subject: below --
2014-01-28 23:59 [PATCHSET cgroup/for-3.15] cgroup: cleanups after kernfs conversion Tejun Heo
     [not found] ` <1390953585-16554-1-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2014-01-28 23:59   ` [PATCH 2/8] cgroup: relocate cgroup_rm_cftypes() Tejun Heo

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