Fix !INVARIANTS build.

Fix-from: Matt Dillon.

diff --git a/sys/kern/vfs_cluster.c b/sys/kern/vfs_cluster.c
index 204e1f6..41eda14 100644 (file)
--- a/sys/kern/vfs_cluster.c
+++ b/sys/kern/vfs_cluster.c
@@ -212,7 +212,7 @@ cluster_read(struct vnode *vp, off_t filesize, off_t loffset,
                loffset += i * blksize;
                reqbp = bp = NULL;
        } else {
-               off_t firstread = bp->b_loffset;
+               __debugvar off_t firstread = bp->b_loffset;
                int nblks;
 
                /*