diff options
Diffstat (limited to 'ctree.h')
| -rw-r--r-- | ctree.h | 26 |
1 files changed, 19 insertions, 7 deletions
@@ -45,10 +45,12 @@ struct btrfs_free_space_ctl; #define BTRFS_MAGIC 0x4D5F53665248425FULL /* ascii _BHRfS_M, no null */ /* - * Fake signature for an unfinalized filesystem, structures might be partially - * created or missing. + * Fake signature for an unfinalized filesystem, which only has barebone tree + * structures (normally 6 near empty trees, on SINGLE meta/sys temporary chunks) + * + * ascii !BHRfS_M, no null */ -#define BTRFS_MAGIC_PARTIAL 0x4D5F536652484221ULL /* ascii !BHRfS_M, no null */ +#define BTRFS_MAGIC_TEMPORARY 0x4D5F536652484221ULL #define BTRFS_MAX_MIRRORS 3 @@ -167,10 +169,9 @@ struct btrfs_free_space_ctl; /* csum types */ #define BTRFS_CSUM_TYPE_CRC32 0 +/* four bytes for CRC32 */ static int btrfs_csum_sizes[] = { 4 }; -/* four bytes for CRC32 */ -#define BTRFS_CRC32_SIZE 4 #define BTRFS_EMPTY_DIR_SIZE 0 #define BTRFS_FT_UNKNOWN 0 @@ -958,7 +959,17 @@ struct btrfs_csum_item { #define BTRFS_BLOCK_GROUP_RAID5 (1ULL << 7) #define BTRFS_BLOCK_GROUP_RAID6 (1ULL << 8) #define BTRFS_BLOCK_GROUP_RESERVED BTRFS_AVAIL_ALLOC_BIT_SINGLE -#define BTRFS_NR_RAID_TYPES 7 + +enum btrfs_raid_types { + BTRFS_RAID_RAID10, + BTRFS_RAID_RAID1, + BTRFS_RAID_DUP, + BTRFS_RAID_RAID0, + BTRFS_RAID_SINGLE, + BTRFS_RAID_RAID5, + BTRFS_RAID_RAID6, + BTRFS_NR_RAID_TYPES +}; #define BTRFS_BLOCK_GROUP_TYPE_MASK (BTRFS_BLOCK_GROUP_DATA | \ BTRFS_BLOCK_GROUP_SYSTEM | \ @@ -2653,7 +2664,8 @@ static inline int btrfs_next_item(struct btrfs_root *root, } int btrfs_prev_leaf(struct btrfs_root *root, struct btrfs_path *path); -int btrfs_leaf_free_space(struct btrfs_root *root, struct extent_buffer *leaf); +int btrfs_leaf_free_space(struct btrfs_fs_info *fs_info, + struct extent_buffer *leaf); void btrfs_fixup_low_keys(struct btrfs_root *root, struct btrfs_path *path, struct btrfs_disk_key *key, int level); int btrfs_set_item_key_safe(struct btrfs_root *root, struct btrfs_path *path, |