ceph: try to send partial cap release on cap message on missing inode

If we have enough memory to allocate a new cap release message, do so, so
that we can send a partial release message immediately.  This keeps us from
making the MDS wait when the cap release it needs is in a partially full
release message.

If we fail because of ENOMEM, oh well, they'll just have to wait a bit
longer.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index e43752b52635..b292fa42a66d 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -322,6 +322,9 @@ static inline void ceph_mdsc_put_request(struct ceph_mds_request *req)
         kref_put(&req->r_kref, ceph_mdsc_release_request);
 }
 
+extern int ceph_add_cap_releases(struct ceph_mds_client *mdsc,
+                                 struct ceph_mds_session *session,
+                                 int extra);
 extern void ceph_send_cap_releases(struct ceph_mds_client *mdsc,
                                    struct ceph_mds_session *session);