linux-kernel - [PATCH] cgroup: explicitly init the early

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Message-Id: <1398144449-9325-1-git-send-email-nasa4836@gmail.com>
Date:	Tue, 22 Apr 2014 13:27:29 +0800
From:	Jianyu Zhan <nasa4836@...il.com>
To:	tj@...nel.org, lizefan@...wei.com
Cc:	containers@...ts.linux-foundation.org, cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org, nasa4836@...il.com
Subject: [PATCH] cgroup: explicitly init the early_init field

For a cgroup subsystem who should init early, then it should carefully
take care of the implementation of css_alloc, because it will be called
before mm_init() setup the world.

Luckily we don't, and we better explicitly assign the early_init field
to 0, for document reason.

Signed-off-by: Jianyu Zhan <nasa4836@...il.com>
---
 kernel/cgroup.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 559f822..f23cb67 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -5325,5 +5325,6 @@ struct cgroup_subsys debug_cgrp_subsys = {
 	.css_alloc = debug_css_alloc,
 	.css_free = debug_css_free,
 	.base_cftypes = debug_files,
+	.early_init = 0,
 };
 #endif /* CONFIG_CGROUP_DEBUG */
-- 
2.0.0-rc0

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