From 8c71897be2ddfd84969412635ca42fa9e137f7b6 Mon Sep 17 00:00:00 2001
From: Henry C Chang <henry.cy.chang@gmail.com>
Date: Tue, 3 May 2011 09:45:16 +0000
Subject: ceph: handle ceph_osdc_new_request failure in ceph_writepages_start

We should unlock the page and return -ENOMEM if ceph_osdc_new_request
failed.

Signed-off-by: Henry C Chang <henry_c_chang@tcloudcomputing.com>
Signed-off-by: Sage Weil <sage@newdream.net>
---
 fs/ceph/addr.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index e159c529fd2b..38b8ab554924 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -775,6 +775,13 @@ get_more_pages:
 					    ci->i_truncate_seq,
 					    ci->i_truncate_size,
 					    &inode->i_mtime, true, 1, 0);
+
+				if (!req) {
+					rc = -ENOMEM;
+					unlock_page(page);
+					break;
+				}
+
 				max_pages = req->r_num_pages;
 
 				alloc_page_vec(fsc, req);
-- 
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