linux-kernel - [PATCH 2/2] cgroup: add sparse annotation to cgroup_iter_start() and cgroup_iter

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Date:	Tue, 27 Dec 2011 07:46:26 +0200
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	cgroups@...r.kernel.org
Cc:	containers@...ts.linux-foundation.org,
	Li Zefan <lizf@...fujitsu.com>, Tejun Heo <tj@...nel.org>,
	linux-kernel@...r.kernel.org, Paul Menage <paul@...lmenage.org>,
	"Kirill A. Shutemov" <kirill@...temov.name>
Subject: [PATCH 2/2] cgroup: add sparse annotation to cgroup_iter_start() and cgroup_iter_end()

From: "Kirill A. Shutemov" <kirill@...temov.name>

Signed-off-by: Kirill A. Shutemov <kirill@...temov.name>
---
 kernel/cgroup.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 98990dd..cbbc61d 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2854,6 +2854,7 @@ static void cgroup_enable_task_cg_lists(void)
 }
 
 void cgroup_iter_start(struct cgroup *cgrp, struct cgroup_iter *it)
+	__acquires(css_set_lock)
 {
 	/*
 	 * The first time anyone tries to iterate across a cgroup,
@@ -2893,6 +2894,7 @@ struct task_struct *cgroup_iter_next(struct cgroup *cgrp,
 }
 
 void cgroup_iter_end(struct cgroup *cgrp, struct cgroup_iter *it)
+	__releases(css_set_lock)
 {
 	read_unlock(&css_set_lock);
 }
-- 
1.7.7.3

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