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 #include <linux/types.h>
10 #include <uapi/linux/btrfs_tree.h>
11 #include "fs.h"
12 #include "accessors.h"
13
14 #define BTRFS_RST_SUPP_BLOCK_GROUP_MASK (BTRFS_BLOCK_GROUP_DUP | \
15 BTRFS_BLOCK_GROUP_RAID1_MASK | \
16 BTRFS_BLOCK_GROUP_RAID0 | \
17 BTRFS_BLOCK_GROUP_RAID10)
18
19 struct btrfs_io_context;
20 struct btrfs_io_stripe;
21 struct btrfs_fs_info;
22 struct btrfs_ordered_extent;
23 struct btrfs_trans_handle;
24
25 int btrfs_delete_raid_extent(struct btrfs_trans_handle *trans, u64 start, u64 length);
26 int btrfs_get_raid_extent_offset(struct btrfs_fs_info *fs_info,
27 u64 logical, u64 *length, u64 map_type,
28 u32 stripe_index, struct btrfs_io_stripe *stripe);
29 int btrfs_insert_raid_extent(struct btrfs_trans_handle *trans,
30 struct btrfs_ordered_extent *ordered_extent);
31 void btrfs_cleanup_ordered_bioc_list(struct btrfs_ordered_extent *ordered);
32
33 #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
34 int btrfs_insert_one_raid_extent(struct btrfs_trans_handle *trans,
35 struct btrfs_io_context *bioc);
36 #endif
37
btrfs_need_stripe_tree_update(struct btrfs_fs_info * fs_info,u64 map_type)38 static inline bool btrfs_need_stripe_tree_update(struct btrfs_fs_info *fs_info,
39 u64 map_type)
40 {
41 u64 type = map_type & BTRFS_BLOCK_GROUP_TYPE_MASK;
42 u64 profile = map_type & BTRFS_BLOCK_GROUP_PROFILE_MASK;
43
44 if (!btrfs_fs_incompat(fs_info, RAID_STRIPE_TREE))
45 return false;
46
47 if (type != BTRFS_BLOCK_GROUP_DATA)
48 return false;
49
50 if (profile & BTRFS_RST_SUPP_BLOCK_GROUP_MASK)
51 return true;
52
53 return false;
54 }
55
btrfs_num_raid_stripes(u32 item_size)56 static inline int btrfs_num_raid_stripes(u32 item_size)
57 {
58 return item_size / sizeof(struct btrfs_raid_stride);
59 }
60
61 #endif
62