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btrfs: migrate the block group read/creation code

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All of the prep work has been done so we can now cleanly move this chunk
over.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ refresh, add btrfs_get_alloc_profile export, comment updates ]
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik
2019-06-20 15:37:57 -04:00
committed by David Sterba
parent e3e0520b32
commit 4358d9635a
4 changed files with 601 additions and 600 deletions
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4
fs/btrfs/block-group.h
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@@ -183,6 +183,10 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
u64 group_start, struct extent_map *em);
void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info);
void btrfs_mark_bg_unused(struct btrfs_block_group_cache *bg);
int btrfs_read_block_groups(struct btrfs_fs_info *info);
int btrfs_make_block_group(struct btrfs_trans_handle *trans, u64 bytes_used,
u64 type, u64 chunk_offset, u64 size);
void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans);
static inline int btrfs_block_group_cache_done(
struct btrfs_block_group_cache *cache)