linux-kernel - [PATCH 08/15] sysfs: Make sysfs

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Date:	Thu, 03 Jul 2008 18:14:36 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Greg Kroah-Hartman <gregkh@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Tejun Heo <htejun@...il.com>, Daniel Lezcano <dlezcano@...ibm.com>,
	linux-kernel@...r.kernel.org, Al Viro <viro@....linux.org.uk>,
	Linux Containers <containers@...ts.osdl.org>,
	Benjamin Thery <benjamin.thery@...l.net>,
	<netdev@...r.kernel.org>
Subject: [PATCH 08/15] sysfs: Make sysfs_mount static once again.


Accessing the internal sysfs_mount is error prone in the context
of multiple super blocks, and nothing needs it.  Not even the
sysfs crash debugging patch (although it did in an earlier version).

Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>
---
 fs/sysfs/mount.c |    2 +-
 fs/sysfs/sysfs.h |    1 -
 2 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index c812cc4..99974f0 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -22,7 +22,7 @@
 /* Random magic number */
 #define SYSFS_MAGIC 0x62656572
 
-struct vfsmount *sysfs_mount;
+static struct vfsmount *sysfs_mount;
 struct super_block * sysfs_sb = NULL;
 struct kmem_cache *sysfs_dir_cachep;
 
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 5ee5d0a..33b3c73 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -97,7 +97,6 @@ struct sysfs_super_info {
 extern struct sysfs_dirent sysfs_root;
 extern struct super_block *sysfs_sb;
 extern struct kmem_cache *sysfs_dir_cachep;
-extern struct vfsmount *sysfs_mount;
 extern struct file_system_type sysfs_fs_type;
 
 void sysfs_grab_supers(void);
-- 
1.5.3.rc6.17.g1911

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