From: Kirill A. Shutemov <kirill@shutemov.name>
Date: Tue, 27 Dec 2011 05:46:26 +0000 (+0200)
Subject: cgroup: add sparse annotation to cgroup_iter_start() and cgroup_iter_end()
X-Git-Tag: firefly_0821_release~3680^2~3800^2~3
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c6ca57500c23d57a4ccec9874b6a3c99c297e1b5;p=firefly-linux-kernel-4.4.55.git

cgroup: add sparse annotation to cgroup_iter_start() and cgroup_iter_end()

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Acked-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 421557fcbfe4..c6bd67b3fcf6 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2825,6 +2825,7 @@ 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,
@@ -2864,6 +2865,7 @@ 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);
 }