1. 30 Dec, 2009 3 commits
    • Dan Williams's avatar
      md: make recovery started by do_md_run() visible via sync_action · a2d79c32
      Dan Williams authored
      By default md_do_sync() will perform recovery if no other actions are
      specified.  However, action_show() relies on MD_RECOVERY_RECOVER to be
      set otherwise it returns 'idle'.  So, add a missing set
      MD_RECOVERY_RECOVER when starting recovery.
      Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
      Signed-off-by: default avatarNeilBrown <neilb@suse.de>
      a2d79c32
    • NeilBrown's avatar
      md: fix small irregularity with start_ro module parameter · 0f9552b5
      NeilBrown authored
      The start_ro modules parameter can be used to force arrays to be
      started in 'auto-readonly' in which they are read-only until the first
      write.  This ensures that no resync/recovery happens until something
      else writes to the device.  This is important for resume-from-disk
      off an md array.
      
      However if an array is started 'readonly' (by writing 'readonly' to
      the 'array_state' sysfs attribute) we want it to be really 'readonly',
      not 'auto-readonly'.
      
      So strengthen the condition to only set auto-readonly if the
      array is not already read-only.
      Signed-off-by: default avatarNeilBrown <neilb@suse.de>
      0f9552b5
    • NeilBrown's avatar
      md: Fix unfortunate interaction with evms · cbd19983
      NeilBrown authored
      evms configures md arrays by:
        open device
        send ioctl
        close device
      
      for each different ioctl needed.
      Since 2.6.29, the device can disappear after the 'close'
      unless a significant configuration has happened to the device.
      The change made by "SET_ARRAY_INFO" can too minor to stop the device
      from disappearing, but important enough that losing the change is bad.
      
      So: make sure SET_ARRAY_INFO sets mddev->ctime, and keep the device
      active as long as ctime is non-zero (it gets zeroed with lots of other
      things when the array is stopped).
      
      This is suitable for -stable kernels since 2.6.29.
      Signed-off-by: default avatarNeilBrown <neilb@suse.de>
      Cc: stable@kernel.org
      cbd19983
  2. 24 Dec, 2009 37 commits