Commits on Feb 7, 2018

1. rbd-mirror: fix potential infinite loop when formatting status message …

   The improvements include:
   
   - tag_tid values should always be increasing, so loop only if
     master.tag_tid > mirror_tag_tid in calculate_behind_master_or_send_update;
   - in send_update_tag_cache don't refetch a tag if it is already in the
     cache;
   - make fake tags with tag_data.predecessor.tag_tid set to zero;
   - make sure the new tag is inserted to the cache if an old entry
     with this id happens to exist.
   
   Fixes: http://tracker.ceph.com/issues/22932
   Signed-off-by: Mykola Golub <mgolub@suse.com>

   

   trociny committed Feb 7, 2018
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