From 901deb8e9ee23b46563e01bca44e7616813d610d Mon Sep 17 00:00:00 2001
From: Tao Ma <tao.ma@oracle.com>
Date: Thu, 10 Sep 2009 15:28:47 +0800
Subject: [PATCH] --- yaml --- r: 165144 b: refs/heads/master c:
 b80474b432913f73cce8db001e9fa3104f9b79ee h: refs/heads/master v: v3

---
 [refs]                | 2 +-
 trunk/fs/ocfs2/aops.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index c4a6786dca12..2c1e0c078b57 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 83e32d9044a4510fffdf65c2691a25c0ba84e259
+refs/heads/master: b80474b432913f73cce8db001e9fa3104f9b79ee
diff --git a/trunk/fs/ocfs2/aops.c b/trunk/fs/ocfs2/aops.c
index 33e03c551127..72e76062a900 100644
--- a/trunk/fs/ocfs2/aops.c
+++ b/trunk/fs/ocfs2/aops.c
@@ -690,6 +690,10 @@ static ssize_t ocfs2_direct_IO(int rw,
 	if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL)
 		return 0;
 
+	/* Fallback to buffered I/O if we are appending. */
+	if (i_size_read(inode) <= offset)
+		return 0;
+
 	ret = blockdev_direct_IO_no_locking(rw, iocb, inode,
 					    inode->i_sb->s_bdev, iov, offset,
 					    nr_segs,