コード例 #1
0
ファイル: cd9660_vfsops.c プロジェクト: darksoul42/bitrig
int
cd9660_mountroot(void)
{
	struct mount *mp;
	extern struct vnode *rootvp;
	struct proc *p = curproc;	/* XXX */
	int error;
	struct iso_args args;

	/*
	 * Get vnodes for swapdev and rootdev.
	 */
	if ((error = bdevvp(swapdev, &swapdev_vp)) ||
	    (error = bdevvp(rootdev, &rootvp))) {
		printf("cd9660_mountroot: can't setup bdevvp's");
		return (error);
	}

	if ((error = vfs_rootmountalloc("cd9660", "root_device", &mp)) != 0)
		return (error);
	args.flags = ISOFSMNT_ROOT;
	if ((error = iso_mountfs(rootvp, mp, p, &args)) != 0) {
		mp->mnt_vfc->vfc_refcount--;
		vfs_unbusy(mp);
		free(mp, M_MOUNT, 0);
		return (error);
	}

	TAILQ_INSERT_TAIL(&mountlist, mp, mnt_list);
	(void)cd9660_statfs(mp, &mp->mnt_stat, p);
	vfs_unbusy(mp);
	inittodr(0);

	return (0);
}
コード例 #2
0
static int
iso_mountroot(struct mount *mp)
{
	struct iso_args args;
	struct vnode *rootvp;
	int error;

	if ((error = bdevvp(rootdev, &rootvp))) {
		kprintf("iso_mountroot: can't find rootvp\n");
		return (error);
	}
	args.flags = ISOFSMNT_ROOT;

	vn_lock(rootvp, LK_EXCLUSIVE | LK_RETRY);
	error = VOP_OPEN(rootvp, FREAD, FSCRED, NULL);
	vn_unlock(rootvp);
	if (error)
		return (error);

	args.ssector = iso_get_ssector(rootdev);

	vn_lock(rootvp, LK_EXCLUSIVE | LK_RETRY);
	VOP_CLOSE(rootvp, FREAD, NULL);
	vn_unlock(rootvp);

	if (bootverbose)
		kprintf("iso_mountroot(): using session at block %d\n",
		       args.ssector);
	if ((error = iso_mountfs(rootvp, mp, &args)) != 0)
		return (error);

	cd9660_statfs(mp, &mp->mnt_stat, proc0.p_ucred);
	return (0);
}
コード例 #3
0
int
cd9660_mountroot()
{
	register struct mount *mp;
	extern struct vnode *rootvp;
	struct proc *p = current_proc();	/* XXX */
	struct iso_mnt *imp;
	size_t size;
	int error;
	struct iso_args args;
	
	/*
	 * Get vnodes for swapdev and rootdev.
	 */
	if ( bdevvp(rootdev, &rootvp))
		panic("cd9660_mountroot: can't setup bdevvp's");

	MALLOC_ZONE(mp, struct mount *,
			sizeof(struct mount), M_MOUNT, M_WAITOK);
	bzero((char *)mp, (u_long)sizeof(struct mount));

    /* Initialize the default IO constraints */
    mp->mnt_maxreadcnt = mp->mnt_maxwritecnt = MAXPHYS;
    mp->mnt_segreadcnt = mp->mnt_segwritecnt = 32;

	mp->mnt_op = &cd9660_vfsops;
	mp->mnt_flag = MNT_RDONLY;
	LIST_INIT(&mp->mnt_vnodelist);
	args.flags = ISOFSMNT_ROOT;
	args.ssector = 0;
	args.fspec = 0;
	args.toc_length = 0;
	args.toc = 0;
	if ((error = iso_mountfs(rootvp, mp, p, &args))) {
		vrele(rootvp); /* release the reference from bdevvp() */

		if (mp->mnt_kern_flag & MNTK_IO_XINFO)
		        FREE(mp->mnt_xinfo_ptr, M_TEMP);
		FREE_ZONE(mp, sizeof (struct mount), M_MOUNT);
		return (error);
	}
	simple_lock(&mountlist_slock);
	CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
	simple_unlock(&mountlist_slock);
	mp->mnt_vnodecovered = NULLVP;
	imp = VFSTOISOFS(mp);
	(void) copystr("/", mp->mnt_stat.f_mntonname, MNAMELEN - 1,
		&size);
	bzero(mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
	(void) copystr(ROOTNAME, mp->mnt_stat.f_mntfromname, MNAMELEN - 1,
		&size);
	bzero(mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
	(void)cd9660_statfs(mp, &mp->mnt_stat, p);
	return (0);
}