diff --git a/include/linux/fs.h b/include/linux/fs.h
index 26cd54db8..68c471301 100755
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1826,41 +1826,6 @@ static inline bool sb_start_intwrite_trylock(struct super_block *sb)
 	return __sb_start_write_trylock(sb, SB_FREEZE_FS);
 }
 
-/**
- * kiocb_start_write - get write access to a superblock for async file io
- * @iocb: the io context we want to submit the write with
- *
- * This is a variant of sb_start_write() for async io submission.
- * Should be matched with a call to kiocb_end_write().
- */
-static inline void kiocb_start_write(struct kiocb *iocb)
-{
-	struct inode *inode = file_inode(iocb->ki_filp);
-
-	sb_start_write(inode->i_sb);
-	/*
-	 * Fool lockdep by telling it the lock got released so that it
-	 * doesn't complain about the held lock when we return to userspace.
-	 */
-	__sb_writers_release(inode->i_sb, SB_FREEZE_WRITE);
-}
-
-/**
- * kiocb_end_write - drop write access to a superblock after async file io
- * @iocb: the io context we sumbitted the write with
- *
- * Should be matched with a call to kiocb_start_write().
- */
-static inline void kiocb_end_write(struct kiocb *iocb)
-{
-	struct inode *inode = file_inode(iocb->ki_filp);
-
-	/*
-	 * Tell lockdep we inherited freeze protection from submission thread.
-	 */
-	__sb_writers_acquired(inode->i_sb, SB_FREEZE_WRITE);
-	sb_end_write(inode->i_sb);
-}
 
 extern bool inode_owner_or_capable(const struct inode *inode);