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>
mariux64 · May 3, 2011 · 8c71897 · 8c71897
1 parent ca20892
commit 8c71897
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
@@ -775,6 +775,13 @@ static int ceph_writepages_start(struct address_space *mapping,
 					    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);