mds: fix max_size==1 bug

We should provide a minimum of one stripe unit.

diff --git a/src/mds/Locker.cc b/src/mds/Locker.cc
index c0942557a83cc8dc6f95ff606ac17bc9b4c6ac94..7fedf8bcc7cbd44a73d13ecfe7a66679dc08f1fe 100644 (file)
--- a/src/mds/Locker.cc
+++ b/src/mds/Locker.cc
@@ -1919,8 +1919,10 @@ bool Locker::_do_cap_update(CInode *in, Capability *cap,
        change_max = true;
        new_max = ROUND_UP_TO((m->get_max_size()+1) << 1, latest->get_layout_size_increment());
       } else {
-       //new_max = ROUND_UP_TO((size+1)<<1, latest->get_layout_size_increment());
        new_max = calc_bounding(size * 2);
+       if (new_max < latest->get_layout_size_increment())
+         new_max = latest->get_layout_size_increment();
+
        if (new_max > old_max)
          change_max = true;
        else