void check_system_chunk(struct btrfs_trans_handle *trans, const u64 type);
u64 add_new_free_space(struct btrfs_block_group_cache *block_group,
u64 start, u64 end);
+void btrfs_mark_bg_unused(struct btrfs_block_group_cache *bg);
/* ctree.c */
int btrfs_bin_search(struct extent_buffer *eb, const struct btrfs_key *key,
* dirty list to avoid races between cleaner kthread and space
* cache writeout.
*/
- if (!alloc && old_val == 0) {
- spin_lock(&info->unused_bgs_lock);
- if (list_empty(&cache->bg_list)) {
- btrfs_get_block_group(cache);
- trace_btrfs_add_unused_block_group(cache);
- list_add_tail(&cache->bg_list,
- &info->unused_bgs);
- }
- spin_unlock(&info->unused_bgs_lock);
- }
+ if (!alloc && old_val == 0)
+ btrfs_mark_bg_unused(cache);
btrfs_put_block_group(cache);
total -= num_bytes;
if (btrfs_chunk_readonly(info, cache->key.objectid)) {
inc_block_group_ro(cache, 1);
} else if (btrfs_block_group_used(&cache->item) == 0) {
- spin_lock(&info->unused_bgs_lock);
- /* Should always be true but just in case. */
- if (list_empty(&cache->bg_list)) {
- btrfs_get_block_group(cache);
- trace_btrfs_add_unused_block_group(cache);
- list_add_tail(&cache->bg_list,
- &info->unused_bgs);
- }
- spin_unlock(&info->unused_bgs_lock);
+ ASSERT(list_empty(&cache->bg_list));
+ btrfs_mark_bg_unused(cache);
}
}
!atomic_read(&root->will_be_snapshotted));
}
}
+
+void btrfs_mark_bg_unused(struct btrfs_block_group_cache *bg)
+{
+ struct btrfs_fs_info *fs_info = bg->fs_info;
+
+ spin_lock(&fs_info->unused_bgs_lock);
+ if (list_empty(&bg->bg_list)) {
+ btrfs_get_block_group(bg);
+ trace_btrfs_add_unused_block_group(bg);
+ list_add_tail(&bg->bg_list, &fs_info->unused_bgs);
+ }
+ spin_unlock(&fs_info->unused_bgs_lock);
+}
if (!cache->removed && !cache->ro && cache->reserved == 0 &&
btrfs_block_group_used(&cache->item) == 0) {
spin_unlock(&cache->lock);
- spin_lock(&fs_info->unused_bgs_lock);
- if (list_empty(&cache->bg_list)) {
- btrfs_get_block_group(cache);
- trace_btrfs_add_unused_block_group(cache);
- list_add_tail(&cache->bg_list,
- &fs_info->unused_bgs);
- }
- spin_unlock(&fs_info->unused_bgs_lock);
+ btrfs_mark_bg_unused(cache);
} else {
spin_unlock(&cache->lock);
}