tree a4500f662f1f18e496ae7660e6daca5307b82d3a
parent ffa358dcaae1f2f00926484e712e06daa8953cb4
author Jens Axboe <axboe@kernel.dk> 1534792850 -0600
committer Jens Axboe <axboe@kernel.dk> 1534972051 -0600

blk-wbt: use wq_has_sleeper() for wq active check

We need the memory barrier before checking the list head,
use the appropriate helper for this. The matching queue
side memory barrier is provided by set_current_state().

Tested-by: Anchal Agarwal <anchalag@amazon.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>