From: ming.lei@redhat.com (Ming Lei)
Subject: [PATCH 2/8] nvme-fc: quiesce/unquiesce admin_q instead of start/stop its hw queues
Date: Tue, 4 Jul 2017 16:18:34 +0800 [thread overview]
Message-ID: <20170704081833.GD29053@ming.t460p> (raw)
In-Reply-To: <1499154912-10420-3-git-send-email-sagi@grimberg.me>
On Tue, Jul 04, 2017@10:55:06AM +0300, Sagi Grimberg wrote:
> unlike blk_mq_stop_hw_queues and blk_mq_start_stopped_hw_queues
> quiescing/unquiescing respects the submission path rcu grace.
> Also make sure to kick the requeue list when appropriate.
>
> Reviewed-By: James Smart <james.smart at broadcom.com>
> Signed-off-by: Sagi Grimberg <sagi at grimberg.me>
> ---
> drivers/nvme/host/fc.c | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
> index 50cc3b2b0e11..d63263f0b530 100644
> --- a/drivers/nvme/host/fc.c
> +++ b/drivers/nvme/host/fc.c
> @@ -2320,8 +2320,10 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
> if (ret)
> goto out_delete_hw_queue;
>
> - if (ctrl->ctrl.state != NVME_CTRL_NEW)
> - blk_mq_start_stopped_hw_queues(ctrl->ctrl.admin_q, true);
> + if (ctrl->ctrl.state != NVME_CTRL_NEW) {
> + blk_mq_unquiesce_queue(ctrl->ctrl.admin_q);
> + blk_mq_kick_requeue_list(ctrl->ctrl.admin_q);
Same question as that in patch 1 about blk_mq_kick_requeue_list().
--
Ming
next prev parent reply other threads:[~2017-07-04 8:18 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-04 7:55 [PATCH 0/8] correct quiescing in several block drivers Sagi Grimberg
2017-07-04 7:55 ` [PATCH 1/8] nvme-rdma: quiesce/unquiesce admin_q instead of start/stop its hw queues Sagi Grimberg
2017-07-04 8:15 ` Ming Lei
2017-07-04 8:59 ` Sagi Grimberg
2017-07-04 9:07 ` Sagi Grimberg
2017-07-04 12:41 ` Ming Lei
2017-07-04 15:35 ` Sagi Grimberg
2017-07-04 7:55 ` [PATCH 2/8] nvme-fc: " Sagi Grimberg
2017-07-04 8:18 ` Ming Lei [this message]
2017-07-04 7:55 ` [PATCH 3/8] nvme-loop: quiesce admin_q instead of stopping " Sagi Grimberg
2017-07-04 8:23 ` Ming Lei
2017-07-04 9:24 ` Sagi Grimberg
2017-07-04 7:55 ` [PATCH 4/8] nvme-pci: quiesce/unquiesce admin_q instead of start/stop its " Sagi Grimberg
2017-07-04 8:26 ` Ming Lei
2017-07-04 7:55 ` [PATCH 5/8] nbd: quiesce request queues to make sure no submissions are inflight Sagi Grimberg
2017-07-04 8:28 ` Ming Lei
2017-07-04 7:55 ` [PATCH 6/8] mtip32xx: " Sagi Grimberg
2017-07-04 22:32 ` Ming Lei
2017-07-05 6:34 ` Sagi Grimberg
2017-07-04 7:55 ` [PATCH 7/8] virtio_blk: quiesce/unquiesce live IO when entering PM states Sagi Grimberg
2017-07-04 8:41 ` Ming Lei
2017-07-04 21:39 ` Michael S. Tsirkin
2017-07-04 7:55 ` [PATCH 8/8] xen-blockfront: quiesce IO before device removal Sagi Grimberg
2017-07-04 22:19 ` Ming Lei
2017-07-05 6:29 ` Sagi Grimberg
2017-07-05 22:56 ` Christoph Hellwig
2017-07-06 6:52 ` Sagi Grimberg
2017-07-04 8:12 ` [PATCH 0/8] correct quiescing in several block drivers Ming Lei
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