From: Zefan Li <lizefan@huawei.com>
To: Tejun Heo <tj@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Cgroups <cgroups@vger.kernel.org>,
Ming Lei <tom.leiming@gmail.com>,
Vladimir Davydov <vdavydov@parallels.com>
Subject: [PATCH -next] cpuset: initialize cpuset a bit early
Date: Wed, 4 Mar 2015 17:09:33 +0800 [thread overview]
Message-ID: <54F6CBCD.50009@huawei.com> (raw)
Now we call ss->bind() in cgroup_init(), so cgroup_init() will
call cpuset_bind() and then the latter will access top_cpuset's
cpumask, which is NULL, because cpuset_init() is called after
cgroup_init()
The simplest fix is to swap cgroup_init() and cpuset_init().
Cc: Vladimir Davydov <vdavydov@parallels.com>
Fixes: 295458e67284 ("cgroup: call cgroup_subsys->bind on cgroup subsys initialization")
Reported by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Zefan Li <lizefan@huawei.com>
---
init/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/init/main.c b/init/main.c
index 61b9937..50d1e95 100644
--- a/init/main.c
+++ b/init/main.c
@@ -667,8 +667,8 @@ asmlinkage __visible void __init start_kernel(void)
page_writeback_init();
proc_root_init();
nsfs_init();
- cgroup_init();
cpuset_init();
+ cgroup_init();
taskstats_init_early();
delayacct_init();
--
1.8.0.2
next reply other threads:[~2015-03-04 9:09 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-04 9:09 Zefan Li [this message]
[not found] ` <54F6CBCD.50009-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2015-03-04 9:19 ` [PATCH -next] cpuset: initialize cpuset a bit early Ming Lei
2015-03-04 9:19 ` Ming Lei
2015-03-04 10:40 ` Vladimir Davydov
2015-03-04 10:40 ` Vladimir Davydov
2015-03-05 13:06 ` Tejun Heo
2015-03-05 13:06 ` Tejun Heo
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