Esempi in C++ (Cpp) per v7fs_superblock_load

Esempio n. 1

static int
v7fs_mountfs(struct vnode *devvp, struct mount *mp, int endian)
{
    struct v7fs_mount *v7fsmount;
    int error;
    struct v7fs_mount_device mount;

    DPRINTF("%d\n",endian);

    v7fsmount = kmem_zalloc(sizeof(*v7fsmount), KM_SLEEP);
    if (v7fsmount == NULL) {
        return ENOMEM;
    }
    v7fsmount->devvp = devvp;
    v7fsmount->mountp = mp;

    mount.device.vnode = devvp;
    mount.endian = endian;

    if ((error = v7fs_io_init(&v7fsmount->core, &mount, V7FS_BSIZE))) {
        goto err_exit;
    }
    struct v7fs_self *fs = v7fsmount->core;

    if ((error = v7fs_superblock_load(fs))) {
        v7fs_io_fini(fs);
        goto err_exit;
    }

    LIST_INIT(&v7fsmount->v7fs_node_head);

    mp->mnt_data = v7fsmount;
    mp->mnt_stat.f_fsidx.__fsid_val[0] = (long)devvp->v_rdev;
    mp->mnt_stat.f_fsidx.__fsid_val[1] = makefstype(MOUNT_V7FS);
    mp->mnt_stat.f_fsid = mp->mnt_stat.f_fsidx.__fsid_val[0];
    mp->mnt_stat.f_namemax = V7FS_NAME_MAX;
    mp->mnt_flag |= MNT_LOCAL;
    mp->mnt_dev_bshift = V7FS_BSHIFT;
    mp->mnt_fs_bshift = V7FS_BSHIFT;

    return 0;

err_exit:
    kmem_free(v7fsmount, sizeof(*v7fsmount));
    return error;
}

Esempio n. 2

File: main.c Progetto: Stichting-MINIX-Research-Foundation/minix

static int
partition_check(struct v7fs_self *fs)
{
	struct v7fs_superblock *sb = &fs->superblock;
	int error;

	if ((error = v7fs_superblock_load(fs))) {
		if (error != EINVAL) {
			/* Invalid superblock information is OK. */
			warnx("Can't read superblock sector.");
		}
	}
	sb->modified = 1;
	if ((error = v7fs_superblock_writeback(fs))) {
		if (errno == EROFS) {
			warnx("Overwriting disk label? ");
		}
		warnx("Can't write superblock sector.");
	}

	return error;
}