btrfs: remove detached list from struct btrfs_backref_cache

We don't ever look at this list, remove it.

Reviewed-by: Boris Burkov <boris@bur.io>
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 2024-10-03 11:43:12 -04:00 committed by David Sterba
parent 8884eed0d6
commit 61085a4945
3 changed files with 0 additions and 5 deletions

View File

@ -3022,7 +3022,6 @@ void btrfs_backref_init_cache(struct btrfs_fs_info *fs_info,
cache->rb_root = RB_ROOT;
for (i = 0; i < BTRFS_MAX_LEVEL; i++)
INIT_LIST_HEAD(&cache->pending[i]);
INIT_LIST_HEAD(&cache->detached);
INIT_LIST_HEAD(&cache->pending_edge);
INIT_LIST_HEAD(&cache->useless_node);
cache->fs_info = fs_info;
@ -3159,7 +3158,6 @@ void btrfs_backref_release_cache(struct btrfs_backref_cache *cache)
ASSERT(list_empty(&cache->pending_edge));
ASSERT(list_empty(&cache->useless_node));
ASSERT(list_empty(&cache->detached));
ASSERT(!cache->nr_nodes);
ASSERT(!cache->nr_edges);
}

View File

@ -393,8 +393,6 @@ struct btrfs_backref_cache {
* level blocks may not reflect the new location
*/
struct list_head pending[BTRFS_MAX_LEVEL];
/* List of detached backref node. */
struct list_head detached;
u64 last_trans;

View File

@ -367,7 +367,6 @@ static bool handle_useless_nodes(struct reloc_control *rc,
* cache to avoid unnecessary backref lookup.
*/
if (cur->level > 0) {
list_add(&cur->list, &cache->detached);
cur->detached = 1;
} else {
rb_erase(&cur->rb_node, &cache->rb_root);