Btrfs: remove unused function btrfs_add_delayed_qgroup_reserve()

No longer used as of commit 5846a3c26873 ("btrfs: qgroup: Fix a race in
delayed_ref which leads to abort trans").

Signed-off-by: Filipe Manana <fdmanana@suse.com>

2 files changed, 0 insertions, 30 deletions

diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index 430b3689b112..02dd2ec7d534 100644
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -861,33 +861,6 @@ int btrfs_add_delayed_data_ref(struct btrfs_fs_info *fs_info,
         return 0;
 }
 
-int btrfs_add_delayed_qgroup_reserve(struct btrfs_fs_info *fs_info,
-                                     struct btrfs_trans_handle *trans,
-                                     u64 ref_root, u64 bytenr, u64 num_bytes)
-{
-        struct btrfs_delayed_ref_root *delayed_refs;
-        struct btrfs_delayed_ref_head *ref_head;
-        int ret = 0;
-
-        if (!fs_info->quota_enabled || !is_fstree(ref_root))
-                return 0;
-
-        delayed_refs = &trans->transaction->delayed_refs;
-
-        spin_lock(&delayed_refs->lock);
-        ref_head = find_ref_head(&delayed_refs->href_root, bytenr, 0);
-        if (!ref_head) {
-                ret = -ENOENT;
-                goto out;
-        }
-        WARN_ON(ref_head->qgroup_reserved || ref_head->qgroup_ref_root);
-        ref_head->qgroup_ref_root = ref_root;
-        ref_head->qgroup_reserved = num_bytes;
-out:
-        spin_unlock(&delayed_refs->lock);
-        return ret;
-}
-
 int btrfs_add_delayed_extent_op(struct btrfs_fs_info *fs_info,
                                 struct btrfs_trans_handle *trans,
                                 u64 bytenr, u64 num_bytes,
diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h
index 5fca9534a271..43f3629760e9 100644
--- a/fs/btrfs/delayed-ref.h
+++ b/fs/btrfs/delayed-ref.h
@@ -250,9 +250,6 @@ int btrfs_add_delayed_data_ref(struct btrfs_fs_info *fs_info,
                                u64 parent, u64 ref_root,
                                u64 owner, u64 offset, u64 reserved, int action,
                                struct btrfs_delayed_extent_op *extent_op);
-int btrfs_add_delayed_qgroup_reserve(struct btrfs_fs_info *fs_info,
-                                     struct btrfs_trans_handle *trans,
-                                     u64 ref_root, u64 bytenr, u64 num_bytes);
 int btrfs_add_delayed_extent_op(struct btrfs_fs_info *fs_info,
                                 struct btrfs_trans_handle *trans,
                                 u64 bytenr, u64 num_bytes,