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nvme-fc: stop queues on error detection

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Per the recommendation by Sagi on:
http://lists.infradead.org/pipermail/linux-nvme/2017-April/009261.html

Rather than waiting for reset work thread to stop queues and abort the ios,
immediately stop the queues on error detection. Reset thread will restop
the queues (as it's called on other paths), but it does not appear to have
a side effect.

Signed-off-by: James Smart <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
James Smart 2017-04-25 15:32:01 -07:00 • committed by Jens Axboe
commit 2952a879ba
1 changed files with 4 additions and 0 deletions
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4
drivers/nvme/host/fc.c
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@ -1754,6 +1754,10 @@ nvme_fc_error_recovery(struct nvme_fc_ctrl *ctrl, char *errmsg)
dev_info(ctrl->ctrl.device,
"NVME-FC{%d}: resetting controller\n", ctrl->cnum);
/* stop the queues on error, cleanup is in reset thread */
if (ctrl->queue_count > 1)
nvme_stop_queues(&ctrl->ctrl);
if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_RECONNECTING)) {
dev_err(ctrl->ctrl.device,
"NVME-FC{%d}: error_recovery: Couldn't change state "