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From: Scott Long <scottl@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
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Subject: PERFORCE change 133506 for review
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http://perforce.freebsd.org/chv.cgi?CH=133506

Change 133506 by scottl@scottl-ix on 2008/01/17 22:05:01

	Remove an unused mutex.

Affected files ...

.. //depot/projects/xen31/sys/dev/xen/blkfront/blkfront.c#12 edit

Differences ...

==== //depot/projects/xen31/sys/dev/xen/blkfront/blkfront.c#12 (text+ko) ====

@@ -109,8 +109,6 @@
 #define MAXIMUM_OUTSTANDING_BLOCK_REQS \
     (BLKIF_MAX_SEGMENTS_PER_REQUEST * BLK_RING_SIZE)
 
-static struct mtx blkif_io_block_lock;
-
 static void kick_pending_request_queues(struct blkfront_info *);
 static int blkif_open(struct disk *dp);
 static int blkif_close(struct disk *dp);
@@ -234,7 +232,6 @@
 {
 	int err, vdevice, i;
 	struct blkfront_info *info;
-	
 
 	/* FIXME: Use dynamic device id if this is not set. */
 	err = xenbus_scanf(XBT_NIL, dev->nodename,
@@ -1004,7 +1001,6 @@
 }
 
 MTX_SYSINIT(ioreq, &blkif_io_lock, "BIO LOCK", MTX_NOWITNESS); /* XXX how does one enroll a lock? */
-MTX_SYSINIT(ioreq_block, &blkif_io_block_lock, "BIO BLOCK LOCK", MTX_SPIN | MTX_NOWITNESS);
 SYSINIT(xbdev, SI_SUB_PSEUDO, SI_ORDER_SECOND, xenbus_init, NULL);