From a0815d556d1cfb686b46995f86fb081f623fa720 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@primarydata.com>
Date: Wed, 25 Mar 2015 18:58:53 -0400
Subject: NFSv4.1/pnfs: Ensure that writes respect the O_SYNC flag when doing
O_DIRECT
If the caller does not specify the O_SYNC flag, then it is legitimate
to return from O_DIRECT without doing a pNFS layoutcommit operation.
However if the file is opened O_DIRECT|O_SYNC then we'd better get it
right.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
fs/nfs/file.c | 1 +
1 file changed, 1 insertion(+)
(limited to 'fs/nfs/file.c')
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 6959cb76744b..28228f381266 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -281,6 +281,7 @@ nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync)
trace_nfs_fsync_enter(inode);
+ nfs_inode_dio_wait(inode);
do {
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
if (ret != 0)
--
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