Hello Mike,
This patch series avoids that removing a dm device hangs sporadically. I
would appreciate it if you would consider these patches for inclusion in
kernel v4.9. The patches in this series are:
0001-blk-mq-Introduce-blk_mq_queue_stopped.patch
0002-dm-Rename-a-function-argument.patch
0003-dm-Introduce-signal_pending_state.patch
0004-dm-Convert-wait-loops.patch
0005-dm-Add-two-lockdep_assert_held-statements.patch
0006-dm-Simplify-dm_old_stop_queue.patch
0007-dm-Mark-block-layer-queue-dead-before-destroying-the.patch
0008-dm-Fix-two-race-conditions-related-to-stopping-and-s.patch
0009-dm-path-selector-Avoid-that-device-removal-triggers-.patch
Thanks,
Bart.
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