linux-kernel - [PATCH 01/10] cgroup: make cftype->private a unsigned long

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Message-Id: <1436724043-12986-2-git-send-email-tj@kernel.org>
Date:	Sun, 12 Jul 2015 14:00:34 -0400
From:	Tejun Heo <tj@...nel.org>
To:	axboe@...nel.dk
Cc:	linux-kernel@...r.kernel.org, kernel-team@...com,
	vgoyal@...hat.com, avanzini.arianna@...il.com,
	Tejun Heo <tj@...nel.org>, Johannes Weiner <hannes@...xchg.org>
Subject: [PATCH 01/10] cgroup: make cftype->private a unsigned long

It's pretty unusual to have an int as a private data field and it
makes it impossible to carray a pointer value through it.  Let's make
it an unsigned long.  AFAICS, this shouldn't break anything.

Signed-off-by: Tejun Heo <tj@...nel.org>
Acked-by: Li Zefan <lizefan@...wei.com>
Cc: Johannes Weiner <hannes@...xchg.org>
---
 include/linux/cgroup-defs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 93755a6..8f5770a 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -318,7 +318,7 @@ struct cftype {
 	 * end of cftype array.
 	 */
 	char name[MAX_CFTYPE_NAME];
-	int private;
+	unsigned long private;
 	/*
 	 * If not 0, file mode is set to this value, otherwise it will
 	 * be figured out automatically
-- 
2.4.3

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