hfs: stop using ioctl_by_bdev (af00423a) · Commits · 戴 / test

fs/hfs/mdb.c

+19 −13

Original line number	Diff line number	Diff line
		@@ -32,29 +32,35 @@
		static int hfs_get_last_session(struct super_block *sb,
		sector_t start, sector_t size)
		{
		struct cdrom_multisession ms_info;
		struct cdrom_tocentry te;
		int res;
		struct cdrom_device_info *cdi = disk_to_cdi(sb->s_bdev->bd_disk);

		/* default values */
		*start = 0;
		*size = i_size_read(sb->s_bdev->bd_inode) >> 9;

		if (HFS_SB(sb)->session >= 0) {
		struct cdrom_tocentry te;

		if (!cdi)
		return -EINVAL;

		te.cdte_track = HFS_SB(sb)->session;
		te.cdte_format = CDROM_LBA;
		res = ioctl_by_bdev(sb->s_bdev, CDROMREADTOCENTRY, (unsigned long)&te);
		if (!res && (te.cdte_ctrl & CDROM_DATA_TRACK) == 4) {
		*start = (sector_t)te.cdte_addr.lba << 2;
		return 0;
		}
		if (cdrom_read_tocentry(cdi, &te) \|\|
		(te.cdte_ctrl & CDROM_DATA_TRACK) != 4) {
		pr_err("invalid session number or type of track\n");
		return -EINVAL;
		}

		*start = (sector_t)te.cdte_addr.lba << 2;
		} else if (cdi) {
		struct cdrom_multisession ms_info;

		ms_info.addr_format = CDROM_LBA;
		res = ioctl_by_bdev(sb->s_bdev, CDROMMULTISESSION, (unsigned long)&ms_info);
		if (!res && ms_info.xa_flag)
		if (cdrom_multisession(cdi, &ms_info) == 0 && ms_info.xa_flag)
		*start = (sector_t)ms_info.addr.lba << 2;
		}

		return 0;
		}