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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2023 Western Digital Corporation or its affiliates.
*/
#ifndef BTRFS_RAID_STRIPE_TREE_H
#define BTRFS_RAID_STRIPE_TREE_H
#include <linux/types.h>
#include <uapi/linux/btrfs_tree.h>
#include "fs.h"
#define BTRFS_RST_SUPP_BLOCK_GROUP_MASK (BTRFS_BLOCK_GROUP_DUP | \
BTRFS_BLOCK_GROUP_RAID1_MASK | \
BTRFS_BLOCK_GROUP_RAID0 | \
BTRFS_BLOCK_GROUP_RAID10)
struct btrfs_io_context;
struct btrfs_io_stripe;
struct btrfs_fs_info;
struct btrfs_ordered_extent;
struct btrfs_trans_handle;
int btrfs_delete_raid_extent(struct btrfs_trans_handle *trans, u64 start, u64 length);
int btrfs_get_raid_extent_offset(struct btrfs_fs_info *fs_info,
u64 logical, u64 *length, u64 map_type,
u32 stripe_index, struct btrfs_io_stripe *stripe);
int btrfs_insert_raid_extent(struct btrfs_trans_handle *trans,
struct btrfs_ordered_extent *ordered_extent);
static inline bool btrfs_need_stripe_tree_update(struct btrfs_fs_info *fs_info,
u64 map_type)
{
u64 type = map_type & BTRFS_BLOCK_GROUP_TYPE_MASK;
u64 profile = map_type & BTRFS_BLOCK_GROUP_PROFILE_MASK;
if (!btrfs_fs_incompat(fs_info, RAID_STRIPE_TREE))
return false;
if (type != BTRFS_BLOCK_GROUP_DATA)
return false;
if (profile & BTRFS_RST_SUPP_BLOCK_GROUP_MASK)
return true;
return false;
}
static inline int btrfs_num_raid_stripes(u32 item_size)
{
return (item_size - offsetof(struct btrfs_stripe_extent, strides)) /
sizeof(struct btrfs_raid_stride);
}
#endif
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