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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: "Igor Konopko" <igor.j.konopko@intel.com>,
	"Javier González" <javier@javigon.com>,
	"Hans Holmberg" <hans.holmberg@cnexlabs.com>,
	"Matias Bjørling" <mb@lightnvm.io>,
	"Jens Axboe" <axboe@kernel.dk>, "Sasha Levin" <sashal@kernel.org>,
	linux-block@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 188/371] lightnvm: pblk: fix lock order in pblk_rb_tear_down_check
Date: Thu, 16 Jan 2020 12:21:00 -0500
Message-ID: <20200116172403.18149-131-sashal@kernel.org> (raw)
In-Reply-To: <20200116172403.18149-1-sashal@kernel.org>

From: Igor Konopko <igor.j.konopko@intel.com>

[ Upstream commit 486b5aac85f6ec0b2df3e82a6a629d5eb7804db5 ]

In pblk_rb_tear_down_check() the spinlock functions are not
called in proper order.

Fixes: a4bd217 ("lightnvm: physical block device (pblk) target")
Signed-off-by: Igor Konopko <igor.j.konopko@intel.com>
Reviewed-by: Javier González <javier@javigon.com>
Reviewed-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/lightnvm/pblk-rb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/lightnvm/pblk-rb.c b/drivers/lightnvm/pblk-rb.c
index c0dd17a82170..73de2deaba67 100644
--- a/drivers/lightnvm/pblk-rb.c
+++ b/drivers/lightnvm/pblk-rb.c
@@ -825,8 +825,8 @@ int pblk_rb_tear_down_check(struct pblk_rb *rb)
 	}
 
 out:
-	spin_unlock(&rb->w_lock);
 	spin_unlock_irq(&rb->s_lock);
+	spin_unlock(&rb->w_lock);
 
 	return ret;
 }
-- 
2.20.1


  parent reply index

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200116172403.18149-1-sashal@kernel.org>
2020-01-16 17:19 ` [PATCH AUTOSEL 4.14 099/371] block: don't use bio->bi_vcnt to figure out segment number Sasha Levin
2020-01-16 17:21 ` Sasha Levin [this message]
2020-01-16 17:22 ` [PATCH AUTOSEL 4.14 270/371] signal: Allow cifs and drbd to receive their terminating signals Sasha Levin

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