1 files changed, 32 insertions, 2 deletions

diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index 98365e74cb4a..777f6ceb5259 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -124,18 +124,48 @@ static int mdsc_show(struct seq_file *s, void *p)
         return 0;
 }
 
+static int caps_show_cb(struct inode *inode, struct ceph_cap *cap, void *p)
+{
+        struct seq_file *s = p;
+
+        seq_printf(s, "0x%-17lx%-17s%-17s\n", inode->i_ino,
+                   ceph_cap_string(cap->issued),
+                   ceph_cap_string(cap->implemented));
+        return 0;
+}
+
 static int caps_show(struct seq_file *s, void *p)
 {
         struct ceph_fs_client *fsc = s->private;
-        int total, avail, used, reserved, min;
+        struct ceph_mds_client *mdsc = fsc->mdsc;
+        int total, avail, used, reserved, min, i;
 
         ceph_reservation_status(fsc, &total, &avail, &used, &reserved, &min);
         seq_printf(s, "total\t\t%d\n"
                    "avail\t\t%d\n"
                    "used\t\t%d\n"
                    "reserved\t%d\n"
-                   "min\t%d\n",
+                   "min\t\t%d\n\n",
                    total, avail, used, reserved, min);
+        seq_printf(s, "ino                issued           implemented\n");
+        seq_printf(s, "-----------------------------------------------\n");
+
+        mutex_lock(&mdsc->mutex);
+        for (i = 0; i < mdsc->max_sessions; i++) {
+                struct ceph_mds_session *session;
+
+                session = __ceph_lookup_mds_session(mdsc, i);
+                if (!session)
+                        continue;
+                mutex_unlock(&mdsc->mutex);
+                mutex_lock(&session->s_mutex);
+                ceph_iterate_session_caps(session, caps_show_cb, s);
+                mutex_unlock(&session->s_mutex);
+                ceph_put_mds_session(session);
+                mutex_lock(&mdsc->mutex);
+        }
+        mutex_unlock(&mdsc->mutex);
+
         return 0;
 }