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_H 7 #define BTRFS_RAID_STRIPE_TREE_H 8 9 #define BTRFS_RST_SUPP_BLOCK_GROUP_MASK (BTRFS_BLOCK_GROUP_DUP | \ 10 BTRFS_BLOCK_GROUP_RAID1_MASK | \ 11 BTRFS_BLOCK_GROUP_RAID0 | \ 12 BTRFS_BLOCK_GROUP_RAID10) 13 14 struct btrfs_io_context; 15 struct btrfs_io_stripe; 16 struct btrfs_ordered_extent; 17 struct btrfs_trans_handle; 18 19 int btrfs_delete_raid_extent(struct btrfs_trans_handle *trans, u64 start, u64 length); 20 int btrfs_get_raid_extent_offset(struct btrfs_fs_info *fs_info, 21 u64 logical, u64 *length, u64 map_type, 22 u32 stripe_index, struct btrfs_io_stripe *stripe); 23 int btrfs_insert_raid_extent(struct btrfs_trans_handle *trans, 24 struct btrfs_ordered_extent *ordered_extent); 25 26 static inline bool btrfs_need_stripe_tree_update(struct btrfs_fs_info *fs_info, 27 u64 map_type) 28 { 29 u64 type = map_type & BTRFS_BLOCK_GROUP_TYPE_MASK; 30 u64 profile = map_type & BTRFS_BLOCK_GROUP_PROFILE_MASK; 31 32 if (!btrfs_fs_incompat(fs_info, RAID_STRIPE_TREE)) 33 return false; 34 35 if (type != BTRFS_BLOCK_GROUP_DATA) 36 return false; 37 38 if (profile & BTRFS_RST_SUPP_BLOCK_GROUP_MASK) 39 return true; 40 41 return false; 42 } 43 44 static inline int btrfs_num_raid_stripes(u32 item_size) 45 { 46 return (item_size - offsetof(struct btrfs_stripe_extent, strides)) / 47 sizeof(struct btrfs_raid_stride); 48 } 49 50 #endif 51