From: Daniel Wagner <dwagner@suse.de>
To: linux-nvme@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, Keith Busch <kbusch@kernel.org>,
Jens Axboe <axboe@fb.com>, Christoph Hellwig <hch@lst.de>,
Sagi Grimberg <sagi@grimberg.me>, Daniel Wagner <dwagner@suse.de>
Subject: [PATCH] nvme: reset disk to the mpath node also when requeuing
Date: Wed, 2 Jun 2021 14:34:29 +0200 [thread overview]
Message-ID: <20210602123429.103935-1-dwagner@suse.de> (raw)
Commit ce86dad222e9 ("nvme-multipath: reset bdev to ns head when
failover") moved the reset code where the bio is added to the
requeue_list for the failover path. But it left the original
bio_set_dev() in nvme_requeue_work().
Let's move the bio_set_dev() where we add the bio to the requeue_list
and avoid the double setting in case of the failover path. And this
makes the code more consistent.
Signed-off-by: Daniel Wagner <dwagner@suse.de>
---
drivers/nvme/host/multipath.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 127a17b4c13d..df07fc2ad7bc 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -324,6 +324,7 @@ static blk_qc_t nvme_ns_head_submit_bio(struct bio *bio)
dev_warn_ratelimited(dev, "no usable path - requeuing I/O\n");
spin_lock_irq(&head->requeue_lock);
+ bio_set_dev(bio, head->disk->part0);
bio_list_add(&head->requeue_list, bio);
spin_unlock_irq(&head->requeue_lock);
} else {
@@ -435,11 +436,6 @@ static void nvme_requeue_work(struct work_struct *work)
next = bio->bi_next;
bio->bi_next = NULL;
- /*
- * Reset disk to the mpath node and resubmit to select a new
- * path.
- */
- bio_set_dev(bio, head->disk->part0);
submit_bio_noacct(bio);
}
}
--
2.29.2
next reply other threads:[~2021-06-02 15:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-02 12:34 Daniel Wagner [this message]
2021-06-02 12:49 ` Daniel Wagner
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