[PATCH 0/3] Avoid that blk_{un,}register_queue() trigger lock inversion

[Bart Van Assche]

Hello Jens,

The three patches in this series are what I came up with after having
analyzed a lockdep complaint triggered by blk_unregister_queue. Please
consider these patches for kernel v4.16.

Thanks,

Bart.

Bart Van Assche (3):
  block: Unexport elv_register_queue() and elv_unregister_queue()
  block: Document scheduler change code locking requirements
  block: Protect less code with sysfs_lock in blk_{un,}register_queue()

 block/blk-sysfs.c        | 13 ++++---------
 block/blk.h              |  3 +++
 block/elevator.c         | 10 ++++++++--
 include/linux/elevator.h |  2 --
 4 files changed, 15 insertions(+), 13 deletions(-)

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2.15.1