Commit 9c2bb257 authored by James Smart's avatar James Smart Committed by Christoph Hellwig

nvme-fc: remove err_work work item

err_work was created to handle errors (mainly I/O timeouts) while in
CONNECTING state. The flag for err_work_active is also unneeded.

Remove err_work_active and err_work.  The actions to abort I/Os are moved
inline to nvme_error_recovery().
Signed-off-by: default avatarJames Smart <james.smart@broadcom.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent caf1cbe3
......@@ -158,7 +158,6 @@ struct nvme_fc_ctrl {
u32 cnum;
bool ioq_live;
atomic_t err_work_active;
u64 association_id;
struct nvmefc_ls_rcv_op *rcv_disconn;
......@@ -168,7 +167,6 @@ struct nvme_fc_ctrl {
struct blk_mq_tag_set tag_set;
struct delayed_work connect_work;
struct work_struct err_work;
struct kref ref;
unsigned long flags;
......@@ -2415,11 +2413,11 @@ nvme_fc_nvme_ctrl_freed(struct nvme_ctrl *nctrl)
nvme_fc_ctrl_put(ctrl);
}
static void __nvme_fc_terminate_io(struct nvme_fc_ctrl *ctrl);
static void
nvme_fc_error_recovery(struct nvme_fc_ctrl *ctrl, char *errmsg)
{
int active;
/*
* if an error (io timeout, etc) while (re)connecting,
* it's an error on creating the new association.
......@@ -2428,11 +2426,14 @@ nvme_fc_error_recovery(struct nvme_fc_ctrl *ctrl, char *errmsg)
* ios hitting this path before things are cleaned up.
*/
if (ctrl->ctrl.state == NVME_CTRL_CONNECTING) {
active = atomic_xchg(&ctrl->err_work_active, 1);
if (!active && !queue_work(nvme_fc_wq, &ctrl->err_work)) {
atomic_set(&ctrl->err_work_active, 0);
WARN_ON(1);
}
__nvme_fc_terminate_io(ctrl);
/*
* Rescheduling the connection after recovering
* from the io error is left to the reconnect work
* item, which is what should have stalled waiting on
* the io that had the error that scheduled this work.
*/
return;
}
......@@ -3240,7 +3241,6 @@ nvme_fc_delete_ctrl(struct nvme_ctrl *nctrl)
{
struct nvme_fc_ctrl *ctrl = to_fc_ctrl(nctrl);
cancel_work_sync(&ctrl->err_work);
cancel_delayed_work_sync(&ctrl->connect_work);
/*
* kill the association on the link side. this will block
......@@ -3351,23 +3351,6 @@ nvme_fc_reset_ctrl_work(struct work_struct *work)
ctrl->cnum);
}
static void
nvme_fc_connect_err_work(struct work_struct *work)
{
struct nvme_fc_ctrl *ctrl =
container_of(work, struct nvme_fc_ctrl, err_work);
__nvme_fc_terminate_io(ctrl);
atomic_set(&ctrl->err_work_active, 0);
/*
* Rescheduling the connection after recovering
* from the io error is left to the reconnect work
* item, which is what should have stalled waiting on
* the io that had the error that scheduled this work.
*/
}
static const struct nvme_ctrl_ops nvme_fc_ctrl_ops = {
.name = "fc",
......@@ -3495,7 +3478,6 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
ctrl->dev = lport->dev;
ctrl->cnum = idx;
ctrl->ioq_live = false;
atomic_set(&ctrl->err_work_active, 0);
init_waitqueue_head(&ctrl->ioabort_wait);
get_device(ctrl->dev);
......@@ -3503,7 +3485,6 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
INIT_WORK(&ctrl->ctrl.reset_work, nvme_fc_reset_ctrl_work);
INIT_DELAYED_WORK(&ctrl->connect_work, nvme_fc_connect_ctrl_work);
INIT_WORK(&ctrl->err_work, nvme_fc_connect_err_work);
spin_lock_init(&ctrl->lock);
/* io queue count */
......@@ -3596,7 +3577,6 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
fail_ctrl:
nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_DELETING);
cancel_work_sync(&ctrl->ctrl.reset_work);
cancel_work_sync(&ctrl->err_work);
cancel_delayed_work_sync(&ctrl->connect_work);
ctrl->ctrl.opts = NULL;
......
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