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, 3 insertions, 4 deletions

diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index a6b13f12b0e7..8ad38bccc0e4 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -60,10 +60,9 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char
 
         BUG_ON(!name);
 
-        if (!kobj) {
-                if (sysfs_mount && sysfs_mount->mnt_sb)
-                        parent_sd = sysfs_mount->mnt_sb->s_root->d_fsdata;
-        } else
+        if (!kobj)
+                parent_sd = &sysfs_root;
+        else
                 parent_sd = kobj->sd;
 
         error = -EFAULT;