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btrfs-progs: check: Remove duplicated and commented functions 

Commit 756105181e ("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@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2019-06-19 17:04:40 +03:00 committed by David Sterba
parent 16b30ddb28
commit 32f75c87a0
1 changed files with 0 additions and 69 deletions
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69
check/main.c
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@ -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,