On Wed, May 31, 2017 at 02:30:50PM -0700, Bart Van Assche wrote: > Running a queue causes the block layer to examine the per-CPU and > hw queues but not the requeue list. Hence add a 'kick' operation > that also examines the requeue list. > > Signed-off-by: Bart Van Assche <[email protected]> > Cc: Christoph Hellwig <[email protected]> > Cc: Hannes Reinecke <[email protected]> > Cc: Omar Sandoval <[email protected]> > Cc: Ming Lei <[email protected]> > --- > block/blk-mq-debugfs.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c > index fa0f624dfccd..962c8417809d 100644 > --- a/block/blk-mq-debugfs.c > +++ b/block/blk-mq-debugfs.c > @@ -114,10 +114,12 @@ static ssize_t queue_state_write(void *data, const char > __user *buf, > blk_mq_run_hw_queues(q, true); > } else if (strcmp(op, "start") == 0) { > blk_mq_start_stopped_hw_queues(q, true); > + } else if (strcmp(op, "kick") == 0) { > + blk_mq_kick_requeue_list(q); > } else { > pr_err("%s: unsupported operation '%s'\n", __func__, op); > inval: > - pr_err("%s: use either 'run' or 'start'\n", __func__); > + pr_err("%s: use 'run', 'start' or 'kick'\n", __func__); > return -EINVAL; > } > return count; > -- > 2.12.2
Reviewed-by: Ming Lei <[email protected]> Thanks, Ming
