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From: Jianyu Zhan <nasa4836@gmail.com>
To: axboe@kernel.dk
Cc: linux-kernel@vger.kernel.org, nasa4836@gmail.com
Subject: [PATCH] blk-cgroup: explicitly init the early_init field
Date: Tue, 22 Apr 2014 13:26:10 +0800	[thread overview]
Message-ID: <1398144370-9236-1-git-send-email-nasa4836@gmail.com> (raw)

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@gmail.com>
---
 block/blk-cgroup.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index e4a4145..941bbc8 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -912,6 +912,7 @@ struct cgroup_subsys blkio_cgrp_subsys = {
 	.css_free = blkcg_css_free,
 	.can_attach = blkcg_can_attach,
 	.base_cftypes = blkcg_files,
+	.early_init = 0,
 };
 EXPORT_SYMBOL_GPL(blkio_cgrp_subsys);
 
-- 
2.0.0-rc0


             reply	other threads:[~2014-04-22  5:26 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-22  5:26 Jianyu Zhan [this message]
2014-04-22 14:16 ` Jens Axboe
2014-04-22 14:18   ` Jianyu Zhan
2014-04-22 21:15     ` Jens Axboe

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