linux-kernel - [PATCH 2/2] ocfs2: truncate outstanding block after direct io failure.

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Message-Id: <1224424981-5144-2-git-send-email-dmonakhov@openvz.org>
Date:	Sun, 19 Oct 2008 18:03:01 +0400
From:	Dmitri Monakhov <dmonakhov@...nvz.org>
To:	linux-kernel@...r.kernel.org
Cc:	linux-fsdevel@...r.kernel.org,
	Dmitri Monakhov <dmonakhov@...nvz.org>
Subject: [PATCH 2/2] ocfs2: truncate outstanding block after direct io failure.


Signed-off-by: Dmitri Monakhov <dmonakhov@...nvz.org>
---
 fs/ocfs2/file.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 8d3225a..0b68b30 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1867,6 +1867,13 @@ relock:
 		written = generic_file_direct_write(iocb, iov, &nr_segs, *ppos,
 						    ppos, count, ocount);
 		if (written < 0) {
+			/*
+			 * direct write may have instantiated a few
+			 * blocks outside i_size. Trim these off again.
+			 * Don't need i_size_read because we hold i_mutex.
+			 */
+			if (*ppos + count > inode->i_size)
+				vmtruncate(inode, inode->i_size);
 			ret = written;
 			goto out_dio;
 		}
-- 
1.5.4.3

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