diff --git a/share/man/man9/VOP_BWRITE.9 b/share/man/man9/VOP_BWRITE.9
index cb62d4b19a6f..da9050d68c27 100644
--- a/share/man/man9/VOP_BWRITE.9
+++ b/share/man/man9/VOP_BWRITE.9
@@ -37,19 +37,17 @@
 .Sh SYNOPSIS
 .Fd #include <sys/param.h>
 .Fd #include <sys/vnode.h>
-.Fd #include <sys/buf.h>
 .Ft int
-.Fn VOP_BWRITE "struct buf *bp"
+.Fn VOP_BWRITE "struct vnode *vp" "struct buf *bp"
 .Sh DESCRIPTION
 .Pp
 The arguments are:
-.Bl -tag -width bp
+.Bl -tag -width vp
+.It Ar vp
+the vnode of the file being written to
 .It Ar bp
 the buffer to be written
 .El
-.Pp
-Most filesystems use the default implementation of this,
-.Fn vn_bwrite .
 .Sh RETURN VALUES
 Zero is returned on success, otherwise an error is returned.
 .Sh SEE ALSO
diff --git a/share/man/man9/physio.9 b/share/man/man9/physio.9
index 3822af1db50f..02114fafe22f 100644
--- a/share/man/man9/physio.9
+++ b/share/man/man9/physio.9
@@ -44,15 +44,10 @@
 .Nd initiate I/O on raw devices
 .Sh SYNOPSIS
 .Fd #include <sys/param.h>
+.Fd #include <sys/systm.h>
 .Fd #include <sys/buf.h>
 .Ft int
-.Fo physio
-.Fa "void (*strategy)(struct buf *)"
-.Fa "struct buf *bp"
-.Fa "dev_t dev"
-.Fa "int flags"
-.Fa "u_int (*minphys)(struct buf *)"
-.Fa "struct uio *uio"
+.Fn physio "dev_t dev" "struct uio *uio" "int ioflag"
 .Fc
 .Sh DESCRIPTION
 The