diff --git a/sys/fs/cd9660/cd9660_vnops.c b/sys/fs/cd9660/cd9660_vnops.c
index afc6a2eb2da1..5407dffb4bf0 100644
--- a/sys/fs/cd9660/cd9660_vnops.c
+++ b/sys/fs/cd9660/cd9660_vnops.c
@@ -714,11 +714,9 @@ cd9660_strategy(ap)
 	} */ *ap;
 {
 	struct buf *bp = ap->a_bp;
-	struct vnode *vp = bp->b_vp;
+	struct vnode *vp = ap->a_vp;
 	struct iso_node *ip;
 
-	KASSERT(ap->a_vp == ap->a_bp->b_vp, ("%s(%p != %p)",
-	    __func__, ap->a_vp, ap->a_bp->b_vp));
 	ip = VTOI(vp);
 	if (vp->v_type == VBLK || vp->v_type == VCHR)
 		panic("cd9660_strategy: spec");
diff --git a/sys/fs/hpfs/hpfs_vnops.c b/sys/fs/hpfs/hpfs_vnops.c
index 6f913586c31a..7831aed42792 100644
--- a/sys/fs/hpfs/hpfs_vnops.c
+++ b/sys/fs/hpfs/hpfs_vnops.c
@@ -650,8 +650,6 @@ hpfs_strategy(ap)
 	daddr_t blkno;
 	int error;
 
-	KASSERT(ap->a_vp == ap->a_bp->b_vp, ("%s(%p != %p)",
-	    __func__, ap->a_vp, ap->a_bp->b_vp));
 	dprintf(("hpfs_strategy(): \n"));
 
 	if (vp->v_type == VBLK || vp->v_type == VCHR)
diff --git a/sys/fs/msdosfs/msdosfs_vnops.c b/sys/fs/msdosfs/msdosfs_vnops.c
index 9e329890399c..207e6d8176b4 100644
--- a/sys/fs/msdosfs/msdosfs_vnops.c
+++ b/sys/fs/msdosfs/msdosfs_vnops.c
@@ -1772,15 +1772,11 @@ msdosfs_strategy(ap)
 	} */ *ap;
 {
 	struct buf *bp = ap->a_bp;
-	struct denode *dep = VTODE(bp->b_vp);
 	struct vnode *vp;
+	struct denode *dep = VTODE(ap->a_vp);
 	int error = 0;
 	daddr_t blkno;
 
-	KASSERT(ap->a_vp == ap->a_bp->b_vp, ("%s(%p != %p)",
-	    __func__, ap->a_vp, ap->a_bp->b_vp));
-	if (bp->b_vp->v_type == VBLK || bp->b_vp->v_type == VCHR)
-		panic("msdosfs_strategy: spec");
 	/*
 	 * If we don't already know the filesystem relative block number
 	 * then get it using pcbmap().  If pcbmap() returns the block
diff --git a/sys/fs/ntfs/ntfs_vnops.c b/sys/fs/ntfs/ntfs_vnops.c
index 1ee98a5f566b..8a8f422d291f 100644
--- a/sys/fs/ntfs/ntfs_vnops.c
+++ b/sys/fs/ntfs/ntfs_vnops.c
@@ -270,14 +270,12 @@ ntfs_strategy(ap)
 	} */ *ap;
 {
 	register struct buf *bp = ap->a_bp;
-	register struct vnode *vp = bp->b_vp;
+	register struct vnode *vp = ap->a_vp;
 	register struct fnode *fp = VTOF(vp);
 	register struct ntnode *ip = FTONT(fp);
 	struct ntfsmount *ntmp = ip->i_mp;
 	int error;
 
-	KASSERT(ap->a_vp == ap->a_bp->b_vp, ("%s(%p != %p)",
-	    __func__, ap->a_vp, ap->a_bp->b_vp));
 	dprintf(("ntfs_strategy: offset: %d, blkno: %d, lblkno: %d\n",
 		(u_int32_t)bp->b_offset,(u_int32_t)bp->b_blkno,
 		(u_int32_t)bp->b_lblkno));
diff --git a/sys/fs/udf/udf_vnops.c b/sys/fs/udf/udf_vnops.c
index d26fddcb03eb..d2ca71fcd176 100644
--- a/sys/fs/udf/udf_vnops.c
+++ b/sys/fs/udf/udf_vnops.c
@@ -831,7 +831,7 @@ udf_strategy(struct vop_strategy_args *a)
 	int maxsize;
 
 	bp = a->a_bp;
-	vp = bp->b_vp;
+	vp = a->a_vp;
 	node = VTON(vp);
 
 	KASSERT(a->a_vp == a->a_bp->b_vp, ("%s(%p != %p)",
diff --git a/sys/fs/unionfs/union_vnops.c b/sys/fs/unionfs/union_vnops.c
index 6544674159c8..c092db9e5ee1 100644
--- a/sys/fs/unionfs/union_vnops.c
+++ b/sys/fs/unionfs/union_vnops.c
@@ -1842,15 +1842,13 @@ union_strategy(ap)
 	} */ *ap;
 {
 	struct buf *bp = ap->a_bp;
-	struct vnode *othervp = OTHERVP(bp->b_vp);
+	struct vnode *othervp = OTHERVP(ap->a_vp);
 
-	KASSERT(ap->a_vp == ap->a_bp->b_vp, ("%s(%p != %p)",
-	    __func__, ap->a_vp, ap->a_bp->b_vp));
 #ifdef DIAGNOSTIC
 	if (othervp == NULLVP)
 		panic("union_strategy: nil vp");
 	if ((bp->b_iocmd == BIO_WRITE) &&
-	    (othervp == LOWERVP(bp->b_vp)))
+	    (othervp == LOWERVP(ap->a_vp)))
 		panic("union_strategy: writing to lowervp");
 #endif
 	return (VOP_STRATEGY(othervp, bp));
diff --git a/sys/gnu/ext2fs/ext2_subr.c b/sys/gnu/ext2fs/ext2_subr.c
index 94db9346b7c0..7c7d33341152 100644
--- a/sys/gnu/ext2fs/ext2_subr.c
+++ b/sys/gnu/ext2fs/ext2_subr.c
@@ -103,8 +103,7 @@ ext2_checkoverlap(bp, ip)
 	start = bp->b_blkno;
 	last = start + btodb(bp->b_bcount) - 1;
 	for (ep = buf; ep < ebp; ep++) {
-		if (ep == bp || (ep->b_flags & B_INVAL) ||
-		    ep->b_vp == NULLVP)
+		if (ep == bp || (ep->b_flags & B_INVAL))
 			continue;
 		vp = ip->i_devvp;
 		/* look for overlap */
diff --git a/sys/gnu/ext2fs/ext2_vnops.c b/sys/gnu/ext2fs/ext2_vnops.c
index 2da67779f1a4..5e807c64dc40 100644
--- a/sys/gnu/ext2fs/ext2_vnops.c
+++ b/sys/gnu/ext2fs/ext2_vnops.c
@@ -1424,8 +1424,6 @@ ext2_strategy(ap)
 	int32_t blkno;
 	int error;
 
-	KASSERT(ap->a_vp == ap->a_bp->b_vp, ("%s(%p != %p)",
-	    __func__, ap->a_vp, ap->a_bp->b_vp));
 	ip = VTOI(vp);
 	if (vp->v_type == VBLK || vp->v_type == VCHR)
 		panic("ext2_strategy: spec");
diff --git a/sys/gnu/fs/ext2fs/ext2_subr.c b/sys/gnu/fs/ext2fs/ext2_subr.c
index 94db9346b7c0..7c7d33341152 100644
--- a/sys/gnu/fs/ext2fs/ext2_subr.c
+++ b/sys/gnu/fs/ext2fs/ext2_subr.c
@@ -103,8 +103,7 @@ ext2_checkoverlap(bp, ip)
 	start = bp->b_blkno;
 	last = start + btodb(bp->b_bcount) - 1;
 	for (ep = buf; ep < ebp; ep++) {
-		if (ep == bp || (ep->b_flags & B_INVAL) ||
-		    ep->b_vp == NULLVP)
+		if (ep == bp || (ep->b_flags & B_INVAL))
 			continue;
 		vp = ip->i_devvp;
 		/* look for overlap */
diff --git a/sys/gnu/fs/ext2fs/ext2_vnops.c b/sys/gnu/fs/ext2fs/ext2_vnops.c
index 2da67779f1a4..5e807c64dc40 100644
--- a/sys/gnu/fs/ext2fs/ext2_vnops.c
+++ b/sys/gnu/fs/ext2fs/ext2_vnops.c
@@ -1424,8 +1424,6 @@ ext2_strategy(ap)
 	int32_t blkno;
 	int error;
 
-	KASSERT(ap->a_vp == ap->a_bp->b_vp, ("%s(%p != %p)",
-	    __func__, ap->a_vp, ap->a_bp->b_vp));
 	ip = VTOI(vp);
 	if (vp->v_type == VBLK || vp->v_type == VCHR)
 		panic("ext2_strategy: spec");
diff --git a/sys/isofs/cd9660/cd9660_vnops.c b/sys/isofs/cd9660/cd9660_vnops.c
index afc6a2eb2da1..5407dffb4bf0 100644
--- a/sys/isofs/cd9660/cd9660_vnops.c
+++ b/sys/isofs/cd9660/cd9660_vnops.c
@@ -714,11 +714,9 @@ cd9660_strategy(ap)
 	} */ *ap;
 {
 	struct buf *bp = ap->a_bp;
-	struct vnode *vp = bp->b_vp;
+	struct vnode *vp = ap->a_vp;
 	struct iso_node *ip;
 
-	KASSERT(ap->a_vp == ap->a_bp->b_vp, ("%s(%p != %p)",
-	    __func__, ap->a_vp, ap->a_bp->b_vp));
 	ip = VTOI(vp);
 	if (vp->v_type == VBLK || vp->v_type == VCHR)
 		panic("cd9660_strategy: spec");