From 022f3e2ee2354599faccf5a764a5a24a5dd194c9 Mon Sep 17 00:00:00 2001
From: Henry C Chang <henry.cy.chang@gmail.com>
Date: Tue, 19 Mar 2013 09:46:26 +0800
Subject: [PATCH] ceph: fix buffer pointer advance in ceph_sync_write

We should advance the user data pointer by _len_ instead of _written_.
_len_ is the data length written in each iteration while _written_ is the
accumulated data length we have writtent out.

Signed-off-by: Henry C Chang <henry.cy.chang@gmail.com>
Reviewed-by: Greg Farnum <greg@inktank.com>
Tested-by: Sage Weil <sage@inktank.com>
---
 fs/ceph/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 0ac6e159bdc6..aeafa67bfe99 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -611,7 +611,7 @@ static ssize_t ceph_sync_write(struct file *file, const char __user *data,
 		pos += len;
 		written += len;
 		left -= len;
-		data += written;
+		data += len;
 		if (left)
 			goto more;
 
-- 
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