diff options
Diffstat (limited to 'libbcachefs/bcachefs_format.h')
| -rw-r--r-- | libbcachefs/bcachefs_format.h | 49 |
1 files changed, 44 insertions, 5 deletions
diff --git a/libbcachefs/bcachefs_format.h b/libbcachefs/bcachefs_format.h index 33823551..8312018e 100644 --- a/libbcachefs/bcachefs_format.h +++ b/libbcachefs/bcachefs_format.h @@ -78,6 +78,21 @@ #include <linux/uuid.h> #include "vstructs.h" +#define BITMASK(name, type, field, offset, end) \ +static const unsigned name##_OFFSET = offset; \ +static const unsigned name##_BITS = (end - offset); \ + \ +static inline __u64 name(const type *k) \ +{ \ + return (k->field >> offset) & ~(~0ULL << (end - offset)); \ +} \ + \ +static inline void SET_##name(type *k, __u64 v) \ +{ \ + k->field &= ~(~(~0ULL << (end - offset)) << offset); \ + k->field |= (v & ~(~0ULL << (end - offset))) << offset; \ +} + #define LE_BITMASK(_bits, name, type, field, offset, end) \ static const unsigned name##_OFFSET = offset; \ static const unsigned name##_BITS = (end - offset); \ @@ -349,7 +364,8 @@ static inline void bkey_init(struct bkey *k) x(inode_v2, 23) \ x(alloc_v3, 24) \ x(set, 25) \ - x(lru, 26) + x(lru, 26) \ + x(alloc_v4, 27) enum bch_bkey_type { #define x(name, nr) KEY_TYPE_##name = nr, @@ -899,8 +915,29 @@ struct bch_alloc_v3 { __u8 data[]; } __attribute__((packed, aligned(8))); -LE32_BITMASK(BCH_ALLOC_NEED_DISCARD,struct bch_alloc_v3, flags, 0, 1) -LE32_BITMASK(BCH_ALLOC_NEED_INC_GEN,struct bch_alloc_v3, flags, 1, 2) +struct bch_alloc_v4 { + struct bch_val v; + __u64 journal_seq; + __u32 flags; + __u8 gen; + __u8 oldest_gen; + __u8 data_type; + __u8 stripe_redundancy; + __u32 dirty_sectors; + __u32 cached_sectors; + __u64 io_time[2]; + __u32 stripe; + __u32 nr_external_backpointers; + struct bpos backpointers[0]; +} __attribute__((packed, aligned(8))); + +LE32_BITMASK(BCH_ALLOC_V3_NEED_DISCARD,struct bch_alloc_v3, flags, 0, 1) +LE32_BITMASK(BCH_ALLOC_V3_NEED_INC_GEN,struct bch_alloc_v3, flags, 1, 2) + +BITMASK(BCH_ALLOC_V4_NEED_DISCARD, struct bch_alloc_v4, flags, 0, 1) +BITMASK(BCH_ALLOC_V4_NEED_INC_GEN, struct bch_alloc_v4, flags, 1, 2) +BITMASK(BCH_ALLOC_V4_BACKPOINTERS_START,struct bch_alloc_v4, flags, 2, 8) +BITMASK(BCH_ALLOC_V4_NR_BACKPOINTERS, struct bch_alloc_v4, flags, 8, 14) enum { #define x(name, _bits) BCH_ALLOC_FIELD_V1_##name, @@ -1322,7 +1359,8 @@ struct bch_sb_field_journal_seq_blacklist { x(reflink_p_fix, 16) \ x(subvol_dirent, 17) \ x(inode_v2, 18) \ - x(freespace, 19) + x(freespace, 19) \ + x(alloc_v4, 20) enum bcachefs_metadata_version { bcachefs_metadata_version_min = 9, @@ -1849,7 +1887,8 @@ LE32_BITMASK(JSET_NO_FLUSH, struct jset, flags, 5, 6); x(snapshots, 9) \ x(lru, 10) \ x(freespace, 11) \ - x(need_discard, 12) + x(need_discard, 12) \ + x(backpointers, 13) enum btree_id { #define x(kwd, val) BTREE_ID_##kwd = val, |