On 16.04.19 г. 8:57 ч., Qu Wenruo wrote:
> This patches cleans up btrfs_destroy_delayed_refs() by:
> - Remove the forward declaration
> The caller comes after the implementation, no need to do forward
> declaration.
>
> - Remove the @fs_info parameter
> @fs_info can be extracted from @trans parameter.
>
> - Make it return void
> Again, no failure pattern.
>
> Signed-off-by: Qu Wenruo <[email protected]>
Reviewed-by: Nikolay Borisov <[email protected]>
> ---
> fs/btrfs/disk-io.c | 13 ++++---------
> 1 file changed, 4 insertions(+), 9 deletions(-)
>
> diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
> index 6fe9197f6ee4..d83298570bdb 100644
> --- a/fs/btrfs/disk-io.c
> +++ b/fs/btrfs/disk-io.c
> @@ -54,8 +54,6 @@
> static const struct extent_io_ops btree_extent_io_ops;
> static void end_workqueue_fn(struct btrfs_work *work);
> static void btrfs_destroy_ordered_extents(struct btrfs_root *root);
> -static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
> - struct btrfs_fs_info *fs_info);
> static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root);
> static int btrfs_destroy_marked_extents(struct btrfs_fs_info *fs_info,
> struct extent_io_tree *dirty_pages,
> @@ -4224,13 +4222,12 @@ static void btrfs_destroy_all_ordered_extents(struct
> btrfs_fs_info *fs_info)
> btrfs_wait_ordered_roots(fs_info, U64_MAX, 0, (u64)-1);
> }
>
> -static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
> - struct btrfs_fs_info *fs_info)
> +static void btrfs_destroy_delayed_refs(struct btrfs_transaction *trans)
> {
> + struct btrfs_fs_info *fs_info = trans->fs_info;
> struct rb_node *node;
> struct btrfs_delayed_ref_root *delayed_refs;
> struct btrfs_delayed_ref_node *ref;
> - int ret = 0;
>
> delayed_refs = &trans->delayed_refs;
>
> @@ -4238,7 +4235,7 @@ static int btrfs_destroy_delayed_refs(struct
> btrfs_transaction *trans,
> if (atomic_read(&delayed_refs->num_entries) == 0) {
> spin_unlock(&delayed_refs->lock);
> btrfs_info(fs_info, "delayed_refs has NO entry");
> - return ret;
> + return;
> }
>
> while ((node = rb_first_cached(&delayed_refs->href_root)) != NULL) {
> @@ -4281,8 +4278,6 @@ static int btrfs_destroy_delayed_refs(struct
> btrfs_transaction *trans,
> }
>
> spin_unlock(&delayed_refs->lock);
> -
> - return ret;
> }
>
> static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root)
> @@ -4488,7 +4483,7 @@ void btrfs_cleanup_one_transaction(struct
> btrfs_transaction *cur_trans,
> ASSERT(list_empty(&cur_trans->dirty_bgs));
> ASSERT(list_empty(&cur_trans->io_bgs));
>
> - btrfs_destroy_delayed_refs(cur_trans, fs_info);
> + btrfs_destroy_delayed_refs(cur_trans);
>
> cur_trans->state = TRANS_STATE_COMMIT_START;
> wake_up(&fs_info->transaction_blocked_wait);
>
