fs/btrfs/disk-io.c

437 "tree first key mismatch detected, bytenr=%llu parent_transid=%llu key expected=(%llu,%u,%llu) has=(%llu,%u,%llu)",
605 						u64 bytenr, u64 owner_root,
609 		return alloc_test_extent_buffer(fs_info, bytenr);
610 	return alloc_extent_buffer(fs_info, bytenr, owner_root, level);
614  * Read tree block at logical address @bytenr and do variant basic but critical
620 struct extent_buffer *read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr,
628 	buf = btrfs_find_create_tree_block(fs_info, bytenr, check->owner_root,
808 static u64 btrfs_global_root_id(struct btrfs_fs_info *fs_info, u64 bytenr)
816 	if (bytenr)
817 		block_group = btrfs_lookup_block_group(fs_info, bytenr);
819 		block_group = btrfs_lookup_first_block_group(fs_info, bytenr);
829 struct btrfs_root *btrfs_csum_root(struct btrfs_fs_info *fs_info, u64 bytenr)
834 		.offset = btrfs_global_root_id(fs_info, bytenr),
840 struct btrfs_root *btrfs_extent_root(struct btrfs_fs_info *fs_info, u64 bytenr)
845 		.offset = btrfs_global_root_id(fs_info, bytenr),
2079 	u64 bytenr = btrfs_super_log_root(disk_super);
2095 	log_tree_root->node = read_tree_block(fs_info, bytenr, &check);
2344  * @mirror_num:	the super block number to check its bytenr:
2347  * 	       -1	skip bytenr check
2549  * Some checks like bytenr check will be skipped as their values will be
2582 static int load_super_root(struct btrfs_root *root, u64 bytenr, u64 gen, int level)
2591 	root->node = read_tree_block(root->fs_info, bytenr, &check);
2612 	u64 gen, bytenr;
2615 	bytenr = btrfs_super_root(sb);
2618 	ret = load_super_root(fs_info->tree_root, bytenr, gen, level);
3296 		btrfs_err(fs_info, "invalid superblock tree root bytenr");
3653 	u64 bytenr, bytenr_orig;
3658 	ret = btrfs_sb_log_location_bdev(bdev, copy_num, READ, &bytenr);
3664 	if (bytenr + BTRFS_SUPER_INFO_SIZE >= bdev_nr_bytes(bdev))
3676 				bytenr >> PAGE_SHIFT,
3677 				(bytenr + BTRFS_SUPER_INFO_SIZE) >> PAGE_SHIFT);
3680 	page = read_cache_page_gfp(mapping, bytenr >> PAGE_SHIFT, GFP_NOFS);
3746 	u64 bytenr, bytenr_orig;
3759 		ret = btrfs_sb_log_location(device, i, WRITE, &bytenr);
3769 		if (bytenr + BTRFS_SUPER_INFO_SIZE >=
3779 		page = find_or_create_page(mapping, bytenr >> PAGE_SHIFT,
3783 			    "couldn't get super block page for bytenr %llu",
3784 			    bytenr);
3803 		bio->bi_iter.bi_sector = bytenr >> SECTOR_SHIFT;
3807 			       offset_in_page(bytenr));
3837 	u64 bytenr;
3845 		ret = btrfs_sb_log_location(device, i, READ, &bytenr);
3854 		if (bytenr + BTRFS_SUPER_INFO_SIZE >=
3859 				     bytenr >> PAGE_SHIFT);
4592 			cache = btrfs_lookup_block_group(fs_info, head->bytenr);
4607 			btrfs_error_unpin_extent_range(fs_info, head->bytenr,
4608 				head->bytenr + head->num_bytes - 1);