On Fri, Oct 25 2013, Christoph Hellwig wrote: > Add a helper to iterate over all hw queues and stop them. This is useful > for driver that implement PM suspend functionality. > > Signed-off-by: Christoph Hellwig <[email protected]> > --- > block/blk-mq.c | 12 ++++++++++++ > include/linux/blk-mq.h | 1 + > 2 files changed, 13 insertions(+) > > diff --git a/block/blk-mq.c b/block/blk-mq.c > index f21ec96..04050a3 100644 > --- a/block/blk-mq.c > +++ b/block/blk-mq.c > @@ -679,6 +679,18 @@ void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx) > } > EXPORT_SYMBOL(blk_mq_start_hw_queue); > > +void blk_mq_stop_hw_queues(struct request_queue *q) > +{ > + struct blk_mq_hw_ctx *hctx; > + int i; > + > + queue_for_each_hw_ctx(q, hctx, i) { > + cancel_delayed_work(&hctx->delayed_work); > + set_bit(BLK_MQ_S_STOPPED, &hctx->state); > + }
I changed this to call blk_mq_stop_hw_queue() instead. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
