Index: sys/ufs/ffs/ffs_vfsops.c
===================================================================
--- sys/ufs/ffs/ffs_vfsops.c
+++ sys/ufs/ffs/ffs_vfsops.c
@@ -801,6 +801,7 @@
 	sblockloc = fs->fs_sblockloc;
 	bcopy(newfs, fs, (u_int)fs->fs_sbsize);
 	brelse(bp);
+	ump->um_bsize = fs->fs_bsize;
 	ump->um_maxsymlinklen = fs->fs_maxsymlinklen;
 	ffs_oldfscompat_read(fs, VFSTOUFS(mp), sblockloc);
 	UFS_LOCK(ump);
@@ -1064,6 +1065,7 @@
 			vfs_rel(nmp);
 		vfs_getnewfsid(mp);
 	}
+	ump->um_bsize = fs->fs_bsize;
 	ump->um_maxsymlinklen = fs->fs_maxsymlinklen;
 	MNT_ILOCK(mp);
 	mp->mnt_flag |= MNT_LOCAL;
Index: sys/ufs/ufs/ufs_vnops.c
===================================================================
--- sys/ufs/ufs/ufs_vnops.c
+++ sys/ufs/ufs/ufs_vnops.c
@@ -285,7 +285,8 @@
 
 	ip = VTOI(vp);
 	vnode_create_vobject(vp, DIP(ip, i_size), ap->a_td);
-	if (vp->v_type == VREG && (vn_irflag_read(vp) & VIRF_PGREAD) == 0) {
+	if (vp->v_type == VREG && (vn_irflag_read(vp) & VIRF_PGREAD) == 0 &&
+	    ip->i_ump->um_bsize >= PAGE_SIZE) {
 		vn_irflag_set_cond(vp, VIRF_PGREAD);
 	}
 
Index: sys/ufs/ufs/ufsmount.h
===================================================================
--- sys/ufs/ufs/ufsmount.h
+++ sys/ufs/ufs/ufsmount.h
@@ -96,6 +96,7 @@
 	u_long	um_nindir;			/* (c) indirect ptrs per blk */
 	u_long	um_bptrtodb;			/* (c) indir disk block ptr */
 	u_long	um_seqinc;			/* (c) inc between seq blocks */
+	uint64_t um_bsize;			/* (c) fs block size */
 	uint64_t um_maxsymlinklen;		/* (c) max size of short
 						       symlink */
 	struct	mtx um_lock;			/* (c) Protects ufsmount & fs */