From: Henry C Chang <henry.cy.chang@gmail.com>
Date: Tue, 19 Mar 2013 01:46:26 +0000 (+0800)
Subject: ceph: fix buffer pointer advance in ceph_sync_write
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=06fb6a9f87bb1377a6549602fff230d4b352afe9;p=ceph-client.git

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>
---

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 1cd009a928e6..0e8230d80d82 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -611,7 +611,7 @@ out:
 		pos += len;
 		written += len;
 		left -= len;
-		data += written;
+		data += len;
 		if (left)
 			goto more;