commit 8c71897be2ddfd84969412635ca42fa9e137f7b6
author Henry C Chang <henry.cy.chang@gmail.com> Tue May 03 09:45:16 2011 +0000
committer Sage Weil <sage@newdream.net> Tue May 03 09:28:12 2011 -0700
tree 7403c84c264f1fd0110869bad68405fcaf6c80ba
parent ca20892db7567c40e8ed0668f46cf0d085d7db6d

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

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index e159c52..38b8ab5 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -775,6 +775,13 @@
 					    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);