sysfs: Remove s_dentry

The only uses of s_dentry left are the code that maintains
s_dentry and trivial users that don't actually need it.
So this patch removes the s_dentry maintenance code and
restructures the trivial uses to use something else.

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, 0 insertions, 1 deletions

diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index 8989cbb51a39..28bf359981fc 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -56,7 +56,6 @@ static int sysfs_fill_super(struct super_block *sb, void *data, int silent)
                 iput(inode);
                 return -ENOMEM;
         }
-        sysfs_root.s_dentry = root;
         root->d_fsdata = &sysfs_root;
         sb->s_root = root;
         return 0;