sysfs: Make sysfs_mount static

This patch modifies the users of sysfs_mount to use sysfs_root
instead (which is what they are looking for).  It then
makes sysfs_mount static to keep people from using it
by accident.

The net result is slightly faster and cleaner code.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 3 deletions

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 739dda176b43..7f4abe176701 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -737,10 +737,8 @@ int sysfs_create_dir(struct kobject * kobj)
 
         if (kobj->parent)
                 parent_sd = kobj->parent->sd;
-        else if (sysfs_mount && sysfs_mount->mnt_sb)
-                parent_sd = sysfs_mount->mnt_sb->s_root->d_fsdata;
         else
-                return -EFAULT;
+                parent_sd = &sysfs_root;
 
         error = create_dir(kobj, parent_sd, kobject_name(kobj), &sd);
         if (!error)