1. 24 Oct, 2015 5 commits
  2. 16 Oct, 2015 1 commit
  3. 13 Oct, 2015 1 commit
    • NeilBrown's avatar
      Merge branch 'md-next' of git://github.com/goldwynr/linux into for-next · c2a06c38
      NeilBrown authored
      md-cluster: A better way for METADATA_UPDATED processing
      
      The processing of METADATA_UPDATED message is too simple and prone to
      errors. Besides, it would not update the internal data structures as
      required.
      
      This set of patches reads the superblock from one of the device of the MD
      and checks for changes in the in-memory data structures. If there is a change,
      it performs the necessary actions to keep the internal data structures
      as it would be in the primary node.
      
      An example is if a devices turns faulty. The algorithm is:
      
      1. The initiator node marks the device as faulty and updates the superblock
      2. The initiator node sends METADATA_UPDATED with an advisory  device number to the rest of the nodes.
      3. The receiving node on receiving the METADATA_UPDATED message
        3.1 Reads the superblock
        3.2 Detects a device has failed by comparing with memory structure
        3.3 Calls the necessary functions to record the failure and get the device out of the active array.
        3.4 Acknowledges the message.
      
      The patch series also fixes adding the disk which was impacted because of
      the changes.
      
      Patches can also be found at
      https://github.com/goldwynr/linux branch md-next
      
      Changes since V2:
       - Fix status synchrnoization after --add and --re-add operations
       - Included Guoqing's patches on endian correctness, zeroing cmsg etc
       - Restructure add_new_disk() and cancel()
      c2a06c38
  4. 12 Oct, 2015 18 commits
  5. 11 Oct, 2015 8 commits
  6. 10 Oct, 2015 7 commits