add definition for ability to produce a backtrace

[unix-history] / usr / src / sys / kern / vfs_conf.c

/*
* Copyright (c) 1989, 1993, 1995
*      The Regents of the University of California.  All rights reserved.
*
* %sccs.include.redist.c%
*
*      @(#)vfs_conf.c  8.11 (Berkeley) %G%
*/

#include <sys/param.h>
#include <sys/mount.h>
#include <sys/vnode.h>

/*
* These define the root filesystem, device, and root filesystem type.
*/
struct mount *rootfs;
struct vnode *rootvnode;
int (*mountroot)() = NULL;

/*
* Set up the initial array of known filesystem types.
*/
extern  struct vfsops ufs_vfsops;
extern  int ffs_mountroot();
extern  struct vfsops lfs_vfsops;
extern  int lfs_mountroot();
extern  struct vfsops mfs_vfsops;
extern  int mfs_mountroot();
extern  struct vfsops cd9660_vfsops;
extern  int cd9660_mountroot();
extern  struct vfsops msdos_vfsops;
extern  struct vfsops adosfs_vfsops;
extern  struct vfsops nfs_vfsops;
extern  int nfs_mountroot();
extern  struct vfsops afs_vfsops;
extern  struct vfsops procfs_vfsops;
extern  struct vfsops null_vfsops;
extern  struct vfsops union_vfsops;
extern  struct vfsops umap_vfsops;
extern  struct vfsops portal_vfsops;
extern  struct vfsops fdesc_vfsops;
extern  struct vfsops kernfs_vfsops;

/*
* Set up the filesystem operations for vnodes.
*/
static struct vfsconf vfsconflist[] = {

       /* Fast Filesystem */
#ifdef FFS
       { &ufs_vfsops, "ufs", 1, 0, MNT_LOCAL, ffs_mountroot, NULL },
#endif

       /* Log-based Filesystem */
#ifdef LFS
       { &lfs_vfsops, "lfs", 5, 0, MNT_LOCAL, lfs_mountroot, NULL },
#endif

       /* Memory-based Filesystem */
#ifdef MFS
       { &mfs_vfsops, "mfs", 3, 0, MNT_LOCAL, mfs_mountroot, NULL },
#endif

       /* ISO9660 (aka CDROM) Filesystem */
#ifdef CD9660
       { &cd9660_vfsops, "cd9660", 14, 0, MNT_LOCAL, cd9660_mountroot, NULL },
#endif

       /* MSDOS Filesystem */
#ifdef MSDOS
       { &msdos_vfsops, "msdos", 4, 0, MNT_LOCAL, NULL, NULL },
#endif

       /* AmigaDOS Filesystem */
#ifdef ADOSFS
       { &adosfs_vfsops, "adosfs", 16, 0, MNT_LOCAL, NULL, NULL },
#endif

       /* Sun-compatible Network Filesystem */
#ifdef NFS
       { &nfs_vfsops, "nfs", 2, 0, 0, nfs_mountroot, NULL },
#endif

       /* Andrew Filesystem */
#ifdef AFS
       { &afs_vfsops, "andrewfs", 13, 0, 0, afs_mountroot, NULL },
#endif

       /* /proc Filesystem */
#ifdef PROCFS
       { &procfs_vfsops, "procfs", 12, 0, 0, NULL, NULL },
#endif

       /* Loopback (Minimal) Filesystem Layer */
#ifdef NULLFS
       { &null_vfsops, "loopback", 9, 0, 0, NULL, NULL },
#endif

       /* Union (translucent) Filesystem */
#ifdef UNION
       { &union_vfsops, "union", 15, 0, 0, NULL, NULL },
#endif

       /* User/Group Identifer Remapping Filesystem */
#ifdef UMAPFS
       { &umap_vfsops, "umap", 10, 0, 0, NULL, NULL },
#endif

       /* Portal Filesystem */
#ifdef PORTAL
       { &portal_vfsops, "portal", 8, 0, 0, NULL, NULL },
#endif

       /* File Descriptor Filesystem */
#ifdef FDESC
       { &fdesc_vfsops, "fdesc", 7, 0, 0, NULL, NULL },
#endif

       /* Kernel Information Filesystem */
#ifdef KERNFS
       { &kernfs_vfsops, "kernfs", 11, 0, 0, NULL, NULL },
#endif

};

/*
* Initially the size of the list, vfs_init will set maxvfsconf
* to the highest defined type number.
*/
int maxvfsconf = sizeof(vfsconflist) / sizeof (struct vfsconf);
struct vfsconf *vfsconf = vfsconflist;

/*
*
* vfs_opv_descs enumerates the list of vnode classes, each with it's own
* vnode operation vector.  It is consulted at system boot to build operation
* vectors.  It is NULL terminated.
*
*/
extern struct vnodeopv_desc ffs_vnodeop_opv_desc;
extern struct vnodeopv_desc ffs_specop_opv_desc;
extern struct vnodeopv_desc ffs_fifoop_opv_desc;
extern struct vnodeopv_desc lfs_vnodeop_opv_desc;
extern struct vnodeopv_desc lfs_specop_opv_desc;
extern struct vnodeopv_desc lfs_fifoop_opv_desc;
extern struct vnodeopv_desc mfs_vnodeop_opv_desc;
extern struct vnodeopv_desc dead_vnodeop_opv_desc;
extern struct vnodeopv_desc fifo_vnodeop_opv_desc;
extern struct vnodeopv_desc spec_vnodeop_opv_desc;
extern struct vnodeopv_desc nfsv2_vnodeop_opv_desc;
extern struct vnodeopv_desc spec_nfsv2nodeop_opv_desc;
extern struct vnodeopv_desc fifo_nfsv2nodeop_opv_desc;
extern struct vnodeopv_desc fdesc_vnodeop_opv_desc;
extern struct vnodeopv_desc portal_vnodeop_opv_desc;
extern struct vnodeopv_desc null_vnodeop_opv_desc;
extern struct vnodeopv_desc umap_vnodeop_opv_desc;
extern struct vnodeopv_desc kernfs_vnodeop_opv_desc;
extern struct vnodeopv_desc procfs_vnodeop_opv_desc;
extern struct vnodeopv_desc cd9660_vnodeop_opv_desc;
extern struct vnodeopv_desc cd9660_specop_opv_desc;
extern struct vnodeopv_desc cd9660_fifoop_opv_desc;
extern struct vnodeopv_desc union_vnodeop_opv_desc;

struct vnodeopv_desc *vfs_opv_descs[] = {
       &ffs_vnodeop_opv_desc,
       &ffs_specop_opv_desc,
#ifdef FIFO
       &ffs_fifoop_opv_desc,
#endif
       &dead_vnodeop_opv_desc,
#ifdef FIFO
       &fifo_vnodeop_opv_desc,
#endif
       &spec_vnodeop_opv_desc,
#ifdef LFS
       &lfs_vnodeop_opv_desc,
       &lfs_specop_opv_desc,
#ifdef FIFO
       &lfs_fifoop_opv_desc,
#endif
#endif
#ifdef MFS
       &mfs_vnodeop_opv_desc,
#endif
#ifdef NFS
       &nfsv2_vnodeop_opv_desc,
       &spec_nfsv2nodeop_opv_desc,
#ifdef FIFO
       &fifo_nfsv2nodeop_opv_desc,
#endif
#endif
#ifdef FDESC
       &fdesc_vnodeop_opv_desc,
#endif
#ifdef PORTAL
       &portal_vnodeop_opv_desc,
#endif
#ifdef NULLFS
       &null_vnodeop_opv_desc,
#endif
#ifdef UMAPFS
       &umap_vnodeop_opv_desc,
#endif
#ifdef KERNFS
       &kernfs_vnodeop_opv_desc,
#endif
#ifdef PROCFS
       &procfs_vnodeop_opv_desc,
#endif
#ifdef CD9660
       &cd9660_vnodeop_opv_desc,
       &cd9660_specop_opv_desc,
#ifdef FIFO
       &cd9660_fifoop_opv_desc,
#endif
#endif
#ifdef UNION
       &union_vnodeop_opv_desc,
#endif
       NULL
};