diff mbox series

[4/4] xen/blkback: remove unused pers_gnts_lock from struct xen_blkif_ring

Message ID 20180806113403.24728-6-jgross@suse.com (mailing list archive)
State New, archived
Headers show
Series xen/blk: persistent grant rework | expand

Commit Message

Jürgen Groß Aug. 6, 2018, 11:34 a.m. UTC 
pers_gnts_lock isn't being used anywhere. Remove it.

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

Comments

Roger Pau Monne Aug. 6, 2018, 4:20 p.m. UTC | #1 
On Mon, Aug 06, 2018 at 01:34:03PM +0200, Juergen Gross wrote:
> pers_gnts_lock isn't being used anywhere. Remove it.

That was likely a leftover from when the list of persistent grants was
shared between rings.

> Signed-off-by: Juergen Gross <jgross@suse.com>

Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>

Thanks, Roger.
diff mbox series

Patch

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;