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btrfs: move btrfs_account_ro_block_groups_free_space into space-info.c

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This was prototyped in ctree.h and the code existed in extent-tree.c,
but it's space-info related so move it into space-info.c.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2022-10-24 14:46:56 -04:00 committed by David Sterba
parent 8483d40242
commit e2f13b343c
4 changed files with 35 additions and 35 deletions
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1
fs/btrfs/ctree.h
View File

@ -576,7 +576,6 @@ void btrfs_delalloc_release_extents(struct btrfs_inode *inode, u64 num_bytes);
int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes,
u64 disk_num_bytes, bool noflush);
u64 btrfs_account_ro_block_groups_free_space(struct btrfs_space_info *sinfo);
int btrfs_error_unpin_extent_range(struct btrfs_fs_info *fs_info,
u64 start, u64 end);
int btrfs_discard_extent(struct btrfs_fs_info *fs_info, u64 bytenr,

34
fs/btrfs/extent-tree.c
View File

@ -5975,40 +5975,6 @@ int btrfs_drop_subtree(struct btrfs_trans_handle *trans,
return ret;
}
/*
* helper to account the unused space of all the readonly block group in the
* space_info. takes mirrors into account.
*/
u64 btrfs_account_ro_block_groups_free_space(struct btrfs_space_info *sinfo)
{
struct btrfs_block_group *block_group;
u64 free_bytes = 0;
int factor;
/* It's df, we don't care if it's racy */
if (list_empty(&sinfo->ro_bgs))
return 0;
spin_lock(&sinfo->lock);
list_for_each_entry(block_group, &sinfo->ro_bgs, ro_list) {
spin_lock(&block_group->lock);
if (!block_group->ro) {
spin_unlock(&block_group->lock);
continue;
}
factor = btrfs_bg_type_to_factor(block_group->flags);
free_bytes += (block_group->length -
block_group->used) * factor;
spin_unlock(&block_group->lock);
}
spin_unlock(&sinfo->lock);
return free_bytes;
}
int btrfs_error_unpin_extent_range(struct btrfs_fs_info *fs_info,
u64 start, u64 end)
{

34
fs/btrfs/space-info.c
View File

@ -1814,3 +1814,37 @@ __cold void btrfs_dump_space_info_for_trans_abort(struct btrfs_fs_info *fs_info)
}
dump_global_block_rsv(fs_info);
}
/*
* Account the unused space of all the readonly block group in the space_info.
* takes mirrors into account.
*/
u64 btrfs_account_ro_block_groups_free_space(struct btrfs_space_info *sinfo)
{
struct btrfs_block_group *block_group;
u64 free_bytes = 0;
int factor;
/* It's df, we don't care if it's racy */
if (list_empty(&sinfo->ro_bgs))
return 0;
spin_lock(&sinfo->lock);
list_for_each_entry(block_group, &sinfo->ro_bgs, ro_list) {
spin_lock(&block_group->lock);
if (!block_group->ro) {
spin_unlock(&block_group->lock);
continue;
}
factor = btrfs_bg_type_to_factor(block_group->flags);
free_bytes += (block_group->length -
block_group->used) * factor;
spin_unlock(&block_group->lock);
}
spin_unlock(&sinfo->lock);
return free_bytes;
}

1
fs/btrfs/space-info.h
View File

@ -236,5 +236,6 @@ int btrfs_reserve_data_bytes(struct btrfs_fs_info *fs_info, u64 bytes,
enum btrfs_reserve_flush_enum flush);
void btrfs_dump_space_info_for_trans_abort(struct btrfs_fs_info *fs_info);
void btrfs_init_async_reclaim_work(struct btrfs_fs_info *fs_info);
u64 btrfs_account_ro_block_groups_free_space(struct btrfs_space_info *sinfo);
#endif /* BTRFS_SPACE_INFO_H */