ceph: more informative msgpool errors

Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/msgpool.c b/fs/ceph/msgpool.c
index ad5482c..2f04e0f 100644
--- a/fs/ceph/msgpool.c
+++ b/fs/ceph/msgpool.c
@@ -140,7 +140,7 @@
 			return msg;
 		}
 		pr_err("msgpool_get %p now %d/%d, %s\n", pool, pool->num,
-		       pool->min, pool->blocking ? "waiting" : "failing");
+		       pool->min, pool->blocking ? "waiting" : "may fail");
 		spin_unlock(&pool->lock);
 
 		if (!pool->blocking) {
@@ -151,6 +151,7 @@
 			if (!IS_ERR(msg))
 				return msg;
 
+			pr_err("msgpool_get %p empty + alloc failed\n", pool);
 			return ERR_PTR(-ENOMEM);
 		}