• Linus Torvalds's avatar
    Merge tag 'dm-4.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm · 48915c2c
    Linus Torvalds authored
    Pull device mapper updates from Mike Snitzer:
    
     - various fixes and cleanups for request-based DM core
    
     - add support for delaying the requeue of requests; used by DM
       multipath when all paths have failed and 'queue_if_no_path' is
       enabled
    
     - DM cache improvements to speedup the loading metadata and the writing
       of the hint array
    
     - fix potential for a dm-crypt crash on device teardown
    
     - remove dm_bufio_cond_resched() and just using cond_resched()
    
     - change DM multipath to return a reservation conflict error
       immediately; rather than failing the path and retrying (potentially
       indefinitely)
    
    * tag 'dm-4.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (24 commits)
      dm mpath: always return reservation conflict without failing over
      dm bufio: remove dm_bufio_cond_resched()
      dm crypt: fix crash on exit
      dm cache metadata: switch to using the new cursor api for loading metadata
      dm array: introduce cursor api
      dm btree: introduce cursor api
      dm cache policy smq: distribute entries to random levels when switching to smq
      dm cache: speed up writing of the hint array
      dm array: add dm_array_new()
      dm mpath: delay the requeue of blk-mq requests while all paths down
      dm mpath: use dm_mq_kick_requeue_list()
      dm rq: introduce dm_mq_kick_requeue_list()
      dm rq: reduce arguments passed to map_request() and dm_requeue_original_request()
      dm rq: add DM_MAPIO_DELAY_REQUEUE to delay requeue of blk-mq requests
      dm: convert wait loops to use autoremove_wake_function()
      dm: use signal_pending_state() in dm_wait_for_completion()
      dm: rename task state function arguments
      dm: add two lockdep_assert_held() statements
      dm rq: simplify dm_old_stop_queue()
      dm mpath: check if path's request_queue is dying in activate_path()
      ...
    48915c2c
dm-crypt.c 50.6 KB