VFS: net/unix: d_backing_inode() annotations

places where we are dealing with S_ISSOCK file creation/lookups.

Signed-off-by: David Howells <[e-mail]>
Signed-off-by: Al Viro <[e-mail]>

net/unix/af_unix.c

···
 		    &unix_socket_table[i->i_ino & (UNIX_HASH_SIZE - 1)]) {
 		struct dentry *dentry = unix_sk(s)->path.dentry;
 
-		if (dentry && dentry->d_inode == i) {
+		if (dentry && d_backing_inode(dentry) == i) {
 			sock_hold(s);
 			goto found;
 		}
···
 		err = kern_path(sunname->sun_path, LOOKUP_FOLLOW, &path);
 		if (err)
 			goto fail;
-		inode = path.dentry->d_inode;
+		inode = d_backing_inode(path.dentry);
 		err = inode_permission(inode, MAY_WRITE);
 		if (err)
 			goto put_fail;
···
 			goto out_up;
 		}
 		addr->hash = UNIX_HASH_SIZE;
-		hash = path.dentry->d_inode->i_ino & (UNIX_HASH_SIZE-1);
+		hash = d_backing_inode(path.dentry)->i_ino & (UNIX_HASH_SIZE-1);
 		spin_lock(&unix_table_lock);
 		u->path = path;
 		list = &unix_socket_table[hash];

net/unix/diag.c

···
 
 	if (dentry) {
 		struct unix_diag_vfs uv = {
-			.udiag_vfs_ino = dentry->d_inode->i_ino,
+			.udiag_vfs_ino = d_backing_inode(dentry)->i_ino,
 			.udiag_vfs_dev = dentry->d_sb->s_dev,
 		};