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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Copyright (C) 2023 Western Digital Corporation or its affiliates.4 */5 6#ifndef BTRFS_RAID_STRIPE_TREE_H7#define BTRFS_RAID_STRIPE_TREE_H8 9#include <linux/types.h>10#include <uapi/linux/btrfs_tree.h>11#include "fs.h"12 13#define BTRFS_RST_SUPP_BLOCK_GROUP_MASK (BTRFS_BLOCK_GROUP_DUP | \14 BTRFS_BLOCK_GROUP_RAID1_MASK | \15 BTRFS_BLOCK_GROUP_RAID0 | \16 BTRFS_BLOCK_GROUP_RAID10)17 18struct btrfs_io_context;19struct btrfs_io_stripe;20struct btrfs_fs_info;21struct btrfs_ordered_extent;22struct btrfs_trans_handle;23 24int btrfs_delete_raid_extent(struct btrfs_trans_handle *trans, u64 start, u64 length);25int btrfs_get_raid_extent_offset(struct btrfs_fs_info *fs_info,26 u64 logical, u64 *length, u64 map_type,27 u32 stripe_index, struct btrfs_io_stripe *stripe);28int btrfs_insert_raid_extent(struct btrfs_trans_handle *trans,29 struct btrfs_ordered_extent *ordered_extent);30 31static inline bool btrfs_need_stripe_tree_update(struct btrfs_fs_info *fs_info,32 u64 map_type)33{34 u64 type = map_type & BTRFS_BLOCK_GROUP_TYPE_MASK;35 u64 profile = map_type & BTRFS_BLOCK_GROUP_PROFILE_MASK;36 37 if (!btrfs_fs_incompat(fs_info, RAID_STRIPE_TREE))38 return false;39 40 if (type != BTRFS_BLOCK_GROUP_DATA)41 return false;42 43 if (profile & BTRFS_RST_SUPP_BLOCK_GROUP_MASK)44 return true;45 46 return false;47}48 49static inline int btrfs_num_raid_stripes(u32 item_size)50{51 return item_size / sizeof(struct btrfs_raid_stride);52}53 54#endif55