From d7efebc4db8c1b875c915fb1a2759cb9df4f2956 Mon Sep 17 00:00:00 2001
From: jeff <jeff@FreeBSD.org>
Date: Fri, 31 May 2013 00:43:41 +0000
Subject:  - Convert the bufobj lock to rwlock.  - Use a shared bufobj lock in
 getblk() and inmem().  - Convert softdep's lk to rwlock to match the bufobj
 lock.  - Move INFREECNT to b_flags and protect it with the buf lock.  -
 Remove unnecessary locking around bremfree() and BKGRDINPROG.

Sponsored by:	EMC / Isilon Storage Division
Discussed with:	mckusick, kib, mdf
---
 sys/ufs/ffs/ffs_vfsops.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'sys/ufs/ffs/ffs_vfsops.c')

diff --git a/sys/ufs/ffs/ffs_vfsops.c b/sys/ufs/ffs/ffs_vfsops.c
index d4c035f..57f092c 100644
--- a/sys/ufs/ffs/ffs_vfsops.c
+++ b/sys/ufs/ffs/ffs_vfsops.c
@@ -52,6 +52,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/ioccom.h>
 #include <sys/malloc.h>
 #include <sys/mutex.h>
+#include <sys/rwlock.h>
 
 #include <security/mac/mac_framework.h>
 
@@ -2076,7 +2077,8 @@ ffs_bufwrite(struct buf *bp)
 			return (0);
 		}
 		bp->b_vflags |= BV_BKGRDWAIT;
-		msleep(&bp->b_xflags, BO_MTX(bp->b_bufobj), PRIBIO, "bwrbg", 0);
+		msleep(&bp->b_xflags, BO_LOCKPTR(bp->b_bufobj), PRIBIO,
+		    "bwrbg", 0);
 		if (bp->b_vflags & BV_BKGRDINPROG)
 			panic("bufwrite: still writing");
 	}
-- 
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