• Omar Sandoval's avatar
    block: fix leak of q->rq_wb · 02ba8893
    Omar Sandoval authored
    CONFIG_DEBUG_TEST_DRIVER_REMOVE found a possible leak of q->rq_wb when a
    request queue is reregistered. This has been a problem since wbt was
    introduced, but the WARN_ON(!list_empty(&stats->callbacks)) in the
    blk-stat rework exposed it. Fix it by cleaning up wbt when we unregister
    the queue.
    Fixes: 87760e5e ("block: hook up writeback throttling")
    Signed-off-by: default avatarOmar Sandoval <osandov@fb.com>
    Signed-off-by: default avatarJens Axboe <axboe@fb.com>
blk-sysfs.c 23.3 KB