linux-kernel - [PATCH 4/4] xen/blkback: remove unused pers_gnts_lock from struct xen_blkif

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Message-Id: <20180806113403.24728-6-jgross@suse.com>
Date:   Mon,  6 Aug 2018 13:34:03 +0200
From:   Juergen Gross <jgross@...e.com>
To:     linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
        linux-block@...r.kernel.org
Cc:     konrad.wilk@...cle.com, roger.pau@...rix.com, axboe@...nel.dk,
        boris.ostrovsky@...cle.com, Juergen Gross <jgross@...e.com>
Subject: [PATCH 4/4] xen/blkback: remove unused pers_gnts_lock from struct xen_blkif_ring

pers_gnts_lock isn't being used anywhere. Remove it.

Signed-off-by: Juergen Gross <jgross@...e.com>
---
 drivers/block/xen-blkback/common.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h
index 26710602d463..4b7747159c38 100644
--- a/drivers/block/xen-blkback/common.h
+++ b/drivers/block/xen-blkback/common.h
@@ -279,7 +279,6 @@ struct xen_blkif_ring {
 	wait_queue_head_t	pending_free_wq;
 
 	/* Tree to store persistent grants. */
-	spinlock_t		pers_gnts_lock;
 	struct rb_root		persistent_gnts;
 	unsigned int		persistent_gnt_c;
 	atomic_t		persistent_gnt_in_use;
-- 
2.13.7