Another VFS cleanup "kilo commit"

1.  Remove VOP_UPDATE, it is (also) an UFS/{FFS,LFS,EXT2FS,MFS}
    intereface function, and now lives in the ufsmount structure.

2.  Remove VOP_SEEK, it was unused.

3.  Add mode default vops:

    VOP_ADVLOCK          vop_einval
    VOP_CLOSE            vop_null
    VOP_FSYNC            vop_null
    VOP_IOCTL            vop_enotty
    VOP_MMAP             vop_einval
    VOP_OPEN             vop_null
    VOP_PATHCONF         vop_einval
    VOP_READLINK         vop_einval
    VOP_REALLOCBLKS      vop_eopnotsupp

    And remove identical functionality from filesystems

4.   Add vop_stdpathconf, which returns the canonical stuff.  Use
     it in the filesystems.  (XXX: It's probably wrong that specfs
     and fifofs sets this vop, shouldn't it come from the "host"
     filesystem, for instance ufs or cd9660 ?)

5.   Try to make system wide VOP functions have vop_* names.

6.   Initialize the um_* vectors in LFS.

(Recompile your LKMS!!!)

1 files changed, 2 insertions, 57 deletions

diff --git a/sys/miscfs/kernfs/kernfs_vnops.c b/sys/miscfs/kernfs/kernfs_vnops.c
index 3eea65c..578094f 100644
--- a/sys/miscfs/kernfs/kernfs_vnops.c
+++ b/sys/miscfs/kernfs/kernfs_vnops.c
@@ -34,7 +34,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)kernfs_vnops.c	8.15 (Berkeley) 5/21/95
- * $Id: kernfs_vnops.c,v 1.23 1997/10/15 10:04:23 phk Exp $
+ * $Id: kernfs_vnops.c,v 1.24 1997/10/16 10:48:29 phk Exp $
  */
 
 /*
@@ -109,7 +109,6 @@ static int	kernfs_enotsupp __P((void));
 static int	kernfs_getattr __P((struct vop_getattr_args *ap));
 static int	kernfs_inactive __P((struct vop_inactive_args *ap));
 static int	kernfs_lookup __P((struct vop_lookup_args *ap));
-static int	kernfs_open __P((struct vop_open_args *ap));
 static int	kernfs_pathconf __P((struct vop_pathconf_args *ap));
 static int	kernfs_print __P((struct vop_print_args *ap));
 static int	kernfs_read __P((struct vop_read_args *ap));
@@ -316,20 +315,6 @@ found:
 }
 
 static int
-kernfs_open(ap)
-	struct vop_open_args /* {
-		struct vnode *a_vp;
-		int  a_mode;
-		struct ucred *a_cred;
-		struct proc *a_p;
-	} */ *ap;
-{
-
-	/* Only need to check access permissions. */
-	return (0);
-}
-
-static int
 kernfs_access(ap)
 	struct vop_access_args /* {
 		struct vnode *a_vp;
@@ -636,42 +621,6 @@ kernfs_reclaim(ap)
 	return (0);
 }
 
-/*
- * Return POSIX pathconf information applicable to special devices.
- */
-static int
-kernfs_pathconf(ap)
-	struct vop_pathconf_args /* {
-		struct vnode *a_vp;
-		int a_name;
-		int *a_retval;
-	} */ *ap;
-{
-
-	switch (ap->a_name) {
-	case _PC_LINK_MAX:
-		*ap->a_retval = LINK_MAX;
-		return (0);
-	case _PC_MAX_CANON:
-		*ap->a_retval = MAX_CANON;
-		return (0);
-	case _PC_MAX_INPUT:
-		*ap->a_retval = MAX_INPUT;
-		return (0);
-	case _PC_PIPE_BUF:
-		*ap->a_retval = PIPE_BUF;
-		return (0);
-	case _PC_CHOWN_RESTRICTED:
-		*ap->a_retval = 1;
-		return (0);
-	case _PC_VDISABLE:
-		*ap->a_retval = _POSIX_VDISABLE;
-		return (0);
-	default:
-		return (EINVAL);
-	}
-	/* NOTREACHED */
-}
 
 /*
  * Print out the contents of a kernfs vnode.
@@ -703,20 +652,16 @@ static struct vnodeopv_entry_desc kernfs_vnodeop_entries[] = {
 	{ &vop_default_desc,		(vop_t *) vn_default_error },
 	{ &vop_access_desc,		(vop_t *) kernfs_access },
 	{ &vop_bmap_desc,		(vop_t *) kernfs_badop },
-	{ &vop_close_desc,		(vop_t *) nullop },
-	{ &vop_fsync_desc,		(vop_t *) nullop },
 	{ &vop_getattr_desc,		(vop_t *) kernfs_getattr },
 	{ &vop_inactive_desc,		(vop_t *) kernfs_inactive },
 	{ &vop_islocked_desc,		(vop_t *) vop_noislocked },
 	{ &vop_lock_desc,		(vop_t *) vop_nolock },
 	{ &vop_lookup_desc,		(vop_t *) kernfs_lookup },
-	{ &vop_open_desc,		(vop_t *) kernfs_open },
-	{ &vop_pathconf_desc,		(vop_t *) kernfs_pathconf },
+	{ &vop_pathconf_desc,		(vop_t *) vop_stdpathconf },
 	{ &vop_print_desc,		(vop_t *) kernfs_print },
 	{ &vop_read_desc,		(vop_t *) kernfs_read },
 	{ &vop_readdir_desc,		(vop_t *) kernfs_readdir },
 	{ &vop_reclaim_desc,		(vop_t *) kernfs_reclaim },
-	{ &vop_seek_desc,		(vop_t *) nullop },
 	{ &vop_setattr_desc,		(vop_t *) kernfs_setattr },
 	{ &vop_unlock_desc,		(vop_t *) vop_nounlock },
 	{ &vop_write_desc,		(vop_t *) kernfs_write },