Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...

[pandora-kernel.git] / fs / ceph / mds_client.c

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 9be29b0..a1ee8fa 100644 (file)
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -693,9 +693,11 @@ static int __choose_mds(struct ceph_mds_client *mdsc,
                                dout("choose_mds %p %llx.%llx "
                                     "frag %u mds%d (%d/%d)\n",
                                     inode, ceph_vinop(inode),
-                                    frag.frag, frag.mds,
+                                    frag.frag, mds,
                                     (int)r, frag.ndist);
-                               return mds;
+                               if (ceph_mdsmap_get_state(mdsc->mdsmap, mds) >=
+                                   CEPH_MDS_STATE_ACTIVE)
+                                       return mds;
                        }
 
                        /* since this file/dir wasn't known to be
@@ -708,7 +710,9 @@ static int __choose_mds(struct ceph_mds_client *mdsc,
                                dout("choose_mds %p %llx.%llx "
                                     "frag %u mds%d (auth)\n",
                                     inode, ceph_vinop(inode), frag.frag, mds);
-                               return mds;
+                               if (ceph_mdsmap_get_state(mdsc->mdsmap, mds) >=
+                                   CEPH_MDS_STATE_ACTIVE)
+                                       return mds;
                        }
                }
        }
@@ -1498,7 +1502,7 @@ retry:
        *base = ceph_ino(temp->d_inode);
        *plen = len;
        dout("build_path on %p %d built %llx '%.*s'\n",
-            dentry, atomic_read(&dentry->d_count), *base, len, path);
+            dentry, dentry->d_count, *base, len, path);
        return path;
 }
 
@@ -1705,7 +1709,6 @@ static int __prepare_send_request(struct ceph_mds_client *mdsc,
        struct ceph_msg *msg;
        int flags = 0;
 
-       req->r_mds = mds;
        req->r_attempts++;
        if (req->r_inode) {
                struct ceph_cap *cap =
@@ -1792,6 +1795,8 @@ static int __do_request(struct ceph_mds_client *mdsc,
                goto finish;
        }
 
+       put_request_session(req);
+
        mds = __choose_mds(mdsc, req);
        if (mds < 0 ||
            ceph_mdsmap_get_state(mdsc->mdsmap, mds) < CEPH_MDS_STATE_ACTIVE) {
@@ -1809,6 +1814,8 @@ static int __do_request(struct ceph_mds_client *mdsc,
                        goto finish;
                }
        }
+       req->r_session = get_session(session);
+
        dout("do_request mds%d session %p state %s\n", mds, session,
             session_state_name(session->s_state));
        if (session->s_state != CEPH_MDS_SESSION_OPEN &&
@@ -1821,7 +1828,6 @@ static int __do_request(struct ceph_mds_client *mdsc,
        }
 
        /* send request */
-       req->r_session = get_session(session);
        req->r_resend_mds = -1;   /* forget any previous mds hint */
 
        if (req->r_request_started == 0)   /* note request start time */
@@ -1875,7 +1881,6 @@ static void kick_requests(struct ceph_mds_client *mdsc, int mds)
                if (req->r_session &&
                    req->r_session->s_mds == mds) {
                        dout(" kicking tid %llu\n", req->r_tid);
-                       put_request_session(req);
                        __do_request(mdsc, req);
                }
        }
@@ -2068,8 +2073,11 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
                        goto out;
                } else  {
                        struct ceph_inode_info *ci = ceph_inode(req->r_inode);
-                       struct ceph_cap *cap =
-                               ceph_get_cap_for_mds(ci, req->r_mds);;
+                       struct ceph_cap *cap = NULL;
+
+                       if (req->r_session)
+                               cap = ceph_get_cap_for_mds(ci,
+                                                  req->r_session->s_mds);
 
                        dout("already using auth");
                        if ((!cap || cap != ci->i_auth_cap) ||