osd/osd_types: note about removed_snaps hack

We add in the new snap_seq just to try to keep the interval_set
contiguous.

Signed-off-by: Sage Weil <sage@redhat.com>

diff --git a/src/osd/osd_types.cc b/src/osd/osd_types.cc
index 6b9414115dcde74c99182113daf67df91a652294..8585f681098105948b344d84f79a17d33d7833fa 100644 (file)
--- a/src/osd/osd_types.cc
+++ b/src/osd/osd_types.cc
@@ -1359,6 +1359,7 @@ void pg_pool_t::remove_unmanaged_snap(snapid_t s)
   assert(is_unmanaged_snaps_mode());
   removed_snaps.insert(s);
   snap_seq = snap_seq + 1;
+  // add in the new seq, just to try to keep the interval_set contiguous
   removed_snaps.insert(get_snap_seq());
 }