diff options
Diffstat (limited to 'block/partitions/core.c')
| -rw-r--r-- | block/partitions/core.c | 41 |
1 files changed, 24 insertions, 17 deletions
diff --git a/block/partitions/core.c b/block/partitions/core.c index b11e88c82c8c..815ed33caa1b 100644 --- a/block/partitions/core.c +++ b/block/partitions/core.c @@ -43,6 +43,9 @@ static int (*const check_part[])(struct parsed_partitions *) = { #ifdef CONFIG_CMDLINE_PARTITION cmdline_partition, #endif +#ifdef CONFIG_OF_PARTITION + of_partition, /* cmdline have priority to OF */ +#endif #ifdef CONFIG_EFI_PARTITION efi_partition, /* this must come before msdos */ #endif @@ -173,7 +176,7 @@ static struct parsed_partitions *check_partition(struct gendisk *hd) static ssize_t part_partition_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%d\n", dev_to_bdev(dev)->bd_partno); + return sprintf(buf, "%d\n", bdev_partno(dev_to_bdev(dev))); } static ssize_t part_start_show(struct device *dev, @@ -243,16 +246,18 @@ static const struct attribute_group *part_attr_groups[] = { static void part_release(struct device *dev) { put_disk(dev_to_bdev(dev)->bd_disk); - iput(dev_to_bdev(dev)->bd_inode); + bdev_drop(dev_to_bdev(dev)); } static int part_uevent(const struct device *dev, struct kobj_uevent_env *env) { const struct block_device *part = dev_to_bdev(dev); - add_uevent_var(env, "PARTN=%u", part->bd_partno); + add_uevent_var(env, "PARTN=%u", bdev_partno(part)); if (part->bd_meta_info && part->bd_meta_info->volname[0]) add_uevent_var(env, "PARTNAME=%s", part->bd_meta_info->volname); + if (part->bd_meta_info && part->bd_meta_info->uuid[0]) + add_uevent_var(env, "PARTUUID=%s", part->bd_meta_info->uuid); return 0; } @@ -267,7 +272,7 @@ void drop_partition(struct block_device *part) { lockdep_assert_held(&part->bd_disk->open_mutex); - xa_erase(&part->bd_disk->part_tbl, part->bd_partno); + xa_erase(&part->bd_disk->part_tbl, bdev_partno(part)); kobject_put(part->bd_holder_dir); device_del(&part->bd_device); @@ -338,8 +343,8 @@ static struct block_device *add_partition(struct gendisk *disk, int partno, pdev->parent = ddev; /* in consecutive minor range? */ - if (bdev->bd_partno < disk->minors) { - devt = MKDEV(disk->major, disk->first_minor + bdev->bd_partno); + if (bdev_partno(bdev) < disk->minors) { + devt = MKDEV(disk->major, disk->first_minor + bdev_partno(bdev)); } else { err = blk_alloc_ext_minor(); if (err < 0) @@ -373,6 +378,9 @@ static struct block_device *add_partition(struct gendisk *disk, int partno, goto out_del; } + if (flags & ADDPART_FLAG_READONLY) + bdev_set_flag(bdev, BD_READ_ONLY); + /* everything is up and running, commence */ err = xa_insert(&disk->part_tbl, partno, bdev, GFP_KERNEL); if (err) @@ -404,7 +412,7 @@ static bool partition_overlaps(struct gendisk *disk, sector_t start, rcu_read_lock(); xa_for_each_start(&disk->part_tbl, idx, part, 1) { - if (part->bd_partno != skip_partno && + if (bdev_partno(part) != skip_partno && start < part->bd_start_sect + bdev_nr_sectors(part) && start + length > part->bd_start_sect) { overlap = true; @@ -469,7 +477,7 @@ int bdev_del_partition(struct gendisk *disk, int partno) * Just delete the partition and invalidate it. */ - remove_inode_hash(part->bd_inode); + bdev_unhash(part); invalidate_bdev(part); drop_partition(part); ret = 0; @@ -555,9 +563,11 @@ static bool blk_add_partition(struct gendisk *disk, part = add_partition(disk, p, from, size, state->parts[p].flags, &state->parts[p].info); - if (IS_ERR(part) && PTR_ERR(part) != -ENXIO) { - printk(KERN_ERR " %s: p%d could not be added: %pe\n", - disk->disk_name, p, part); + if (IS_ERR(part)) { + if (PTR_ERR(part) != -ENXIO) { + printk(KERN_ERR " %s: p%d could not be added: %pe\n", + disk->disk_name, p, part); + } return true; } @@ -573,10 +583,7 @@ static int blk_add_partitions(struct gendisk *disk) struct parsed_partitions *state; int ret = -EAGAIN, p; - if (disk->flags & GENHD_FL_NO_PART) - return 0; - - if (test_bit(GD_SUPPRESS_PART_SCAN, &disk->state)) + if (!disk_has_partscan(disk)) return 0; state = check_partition(disk); @@ -655,7 +662,7 @@ rescan: * it cannot be looked up any more even when openers * still hold references. */ - remove_inode_hash(part->bd_inode); + bdev_unhash(part); /* * If @disk->open_partitions isn't elevated but there's @@ -704,7 +711,7 @@ EXPORT_SYMBOL_GPL(bdev_disk_changed); void *read_part_sector(struct parsed_partitions *state, sector_t n, Sector *p) { - struct address_space *mapping = state->disk->part0->bd_inode->i_mapping; + struct address_space *mapping = state->disk->part0->bd_mapping; struct folio *folio; if (n >= get_capacity(state->disk)) { |