ceph: check return value for start_request in writepages

Since we pass the nofail arg, we should never get an error; BUG if we do.
(And fix the function to not return an error if __map_request fails.)

Signed-off-by: Sage Weil <sage@newdream.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 54967268a340..33da49dc3cc6 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -848,7 +848,8 @@ get_more_pages:
                 op->payload_len = cpu_to_le32(len);
                 req->r_request->hdr.data_len = cpu_to_le32(len);
 
-                ceph_osdc_start_request(&fsc->client->osdc, req, true);
+                rc = ceph_osdc_start_request(&fsc->client->osdc, req, true);
+                BUG_ON(rc);
                 req = NULL;
 
                 /* continue? */