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From: Chao Leng <lengchao@huawei.com>
To: <linux-nvme@lists.infradead.org>
Cc: <kbusch@kernel.org>, <axboe@fb.com>, <hch@lst.de>,
	<sagi@grimberg.me>, <lengchao@huawei.com>
Subject: [PATCH] nvme-fabrics: fix crash for no IO queues
Date: Thu, 4 Mar 2021 08:55:43 +0800	[thread overview]
Message-ID: <20210304005543.8005-1-lengchao@huawei.com> (raw)

A crash happens when set feature(NVME_FEAT_NUM_QUEUES) timeout in nvme
over rdma(roce) reconnection, the reason is use the queue which is not
alloced.

If queue is not live, should not allow queue request.

Signed-off-by: Chao Leng <lengchao@huawei.com>
---
 drivers/nvme/host/fabrics.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h
index 733010d2eafd..2479744fc349 100644
--- a/drivers/nvme/host/fabrics.h
+++ b/drivers/nvme/host/fabrics.h
@@ -189,7 +189,7 @@ static inline bool nvmf_check_ready(struct nvme_ctrl *ctrl, struct request *rq,
 {
 	if (likely(ctrl->state == NVME_CTRL_LIVE ||
 		   ctrl->state == NVME_CTRL_DELETING))
-		return true;
+		return queue_live;
 	return __nvmf_check_ready(ctrl, rq, queue_live);
 }
 
-- 
2.16.4


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             reply	other threads:[~2021-03-04  2:38 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-04  0:55 Chao Leng [this message]
2021-03-05 20:58 ` [PATCH] nvme-fabrics: fix crash for no IO queues Sagi Grimberg
2021-03-08  1:30   ` Chao Leng
2021-03-15 17:08     ` Sagi Grimberg
2021-03-16  1:23       ` Chao Leng
2021-03-16  2:02         ` Keith Busch
2021-03-16  5:08           ` Sagi Grimberg
2021-03-16 20:57             ` James Smart
2021-03-16 21:25               ` Keith Busch
2021-03-16 23:52                 ` Sagi Grimberg
2021-03-17  0:19                 ` James Smart
  -- strict thread matches above, loose matches on Subject: below --
2021-03-03  2:53 Chao Leng

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