Commit 756105181e57 ("btrfs-progs: check: supplement extent backref
list with rbtree") changed the backref implementation to use rb tree
and also commented the old implementations. It's been almost 2 years
since that change and it's unlikely the old version will ever be used,
so just remove it.
Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
---
check/main.c | 69 ----------------------------------------------------
1 file changed, 69 deletions(-)
diff --git a/check/main.c b/check/main.c
index 731c21d364d7..05ba9819c58e 100644
--- a/check/main.c
+++ b/check/main.c
@@ -4385,36 +4385,6 @@ static int check_block(struct btrfs_root *root,
return ret;
}
-#if 0
-static struct tree_backref *find_tree_backref(struct extent_record *rec,
- u64 parent, u64 root)
-{
- struct list_head *cur = rec->backrefs.next;
- struct extent_backref *node;
- struct tree_backref *back;
-
- while (cur != &rec->backrefs) {
- node = to_extent_backref(cur);
- cur = cur->next;
- if (node->is_data)
- continue;
- back = to_tree_backref(node);
- if (parent > 0) {
- if (!node->full_backref)
- continue;
- if (parent == back->parent)
- return back;
- } else {
- if (node->full_backref)
- continue;
- if (back->root == root)
- return back;
- }
- }
- return NULL;
-}
-#endif
-
static struct tree_backref *alloc_tree_backref(struct extent_record *rec,
u64 parent, u64 root)
{
@@ -4434,45 +4404,6 @@ static struct tree_backref *alloc_tree_backref(struct extent_record *rec,
return ref;
}
-#if 0
-static struct data_backref *find_data_backref(struct extent_record *rec,
- u64 parent, u64 root,
- u64 owner, u64 offset,
- int found_ref,
- u64 disk_bytenr, u64 bytes)
-{
- struct list_head *cur = rec->backrefs.next;
- struct extent_backref *node;
- struct data_backref *back;
-
- while (cur != &rec->backrefs) {
- node = to_extent_backref(cur);
- cur = cur->next;
- if (!node->is_data)
- continue;
- back = to_data_backref(node);
- if (parent > 0) {
- if (!node->full_backref)
- continue;
- if (parent == back->parent)
- return back;
- } else {
- if (node->full_backref)
- continue;
- if (back->root == root && back->owner == owner &&
- back->offset == offset) {
- if (found_ref && node->found_ref &&
- (back->bytes != bytes ||
- back->disk_bytenr != disk_bytenr))
- continue;
- return back;
- }
- }
- }
- return NULL;
-}
-#endif
-
static struct data_backref *alloc_data_backref(struct extent_record *rec,
u64 parent, u64 root,
u64 owner, u64 offset,
--
2.17.1
