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>

diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index 430b368..02dd2ec 100644 (file)
--- 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 5fca953..43f3629 100644 (file)
--- 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,