Tahsin Erdogan bbfc3c5d6c block: queue lock must be acquired when iterating over rls
blk_set_queue_dying() does not acquire queue lock before it calls
blk_queue_for_each_rl(). This allows a racing blkg_destroy() to
remove blkg->q_node from the linked list and have
blk_queue_for_each_rl() loop infitely over the removed blkg->q_node
list node.

Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-02-01 15:31:22 -07:00
..
2016-10-28 08:45:17 -06:00
2017-01-17 10:03:42 -07:00
2016-12-14 10:49:33 -08:00
2017-01-27 15:03:01 -07:00