From 670654b004b0bf7a0bc749f4f555fdefd5c89dcb Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sat, 23 Jan 2021 10:06:29 -0800
Subject: [PATCH] xfs: remove the buffered I/O fallback assert

The iomap code has been designed from the start not to do magic fallback,
so remove the assert in preparation for further code cleanups.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 fs/xfs/xfs_file.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 3dc5f8ca64ec..b38002ddfa6c 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -609,12 +609,6 @@ xfs_file_dio_write(
 out:
 	if (iolock)
 		xfs_iunlock(ip, iolock);
-
-	/*
-	 * No fallback to buffered IO after short writes for XFS, direct I/O
-	 * will either complete fully or return an error.
-	 */
-	ASSERT(ret < 0 || ret == count);
 	return ret;
 }