pos.offset < ca->mi.nbuckets;
}
-static inline u8 alloc_gc_gen(struct bch_alloc_v4 a)
+static inline u64 bucket_to_u64(struct bpos bucket)
{
- return a.gen - a.oldest_gen;
+ return (bucket.inode << 48) | bucket.offset;
}
-enum bucket_state {
- BUCKET_free,
- BUCKET_need_gc_gens,
- BUCKET_need_discard,
- BUCKET_cached,
- BUCKET_dirty,
-};
+static inline struct bpos u64_to_bucket(u64 bucket)
+{
+ return POS(bucket >> 48, bucket & ~(~0ULL << 48));
+}
-extern const char * const bch2_bucket_states[];
+static inline u8 alloc_gc_gen(struct bch_alloc_v4 a)
+{
+ return a.gen - a.oldest_gen;
+}
-static inline enum bucket_state bucket_state(struct bch_alloc_v4 a)
+static inline enum bch_data_type __alloc_data_type(u32 dirty_sectors,
+ u32 cached_sectors,
+ u32 stripe,
+ struct bch_alloc_v4 a,
+ enum bch_data_type data_type)
{
- if (a.dirty_sectors || a.stripe)
- return BUCKET_dirty;
- if (a.cached_sectors)
- return BUCKET_cached;
- BUG_ON(a.data_type);
+ if (dirty_sectors)
+ return data_type;
+ if (stripe)
+ return BCH_DATA_stripe;
+ if (cached_sectors)
+ return BCH_DATA_cached;
if (BCH_ALLOC_V4_NEED_DISCARD(&a))
- return BUCKET_need_discard;
+ return BCH_DATA_need_discard;
if (alloc_gc_gen(a) >= BUCKET_GC_GEN_MAX)
- return BUCKET_need_gc_gens;
- return BUCKET_free;
+ return BCH_DATA_need_gc_gens;
+ return BCH_DATA_free;
+}
+
+static inline enum bch_data_type alloc_data_type(struct bch_alloc_v4 a,
+ enum bch_data_type data_type)
+{
+ return __alloc_data_type(a.dirty_sectors, a.cached_sectors,
+ a.stripe, a, data_type);
}
-static inline u64 alloc_lru_idx(struct bch_alloc_v4 a)
+static inline u64 alloc_lru_idx_read(struct bch_alloc_v4 a)
{
- return bucket_state(a) == BUCKET_cached ? a.io_time[READ] : 0;
+ return a.data_type == BCH_DATA_cached ? a.io_time[READ] : 0;
+}
+
+static inline u64 alloc_lru_idx_fragmentation(struct bch_alloc_v4 a,
+ struct bch_dev *ca)
+{
+ if (a.data_type != BCH_DATA_btree &&
+ a.data_type != BCH_DATA_user)
+ return 0;
+
+ if (a.dirty_sectors >= ca->mi.bucket_size)
+ return 0;
+
+ return div_u64((u64) a.dirty_sectors * (1ULL << 31), ca->mi.bucket_size);
}
static inline u64 alloc_freespace_genbits(struct bch_alloc_v4 a)
return pos;
}
+static inline unsigned alloc_v4_u64s(const struct bch_alloc_v4 *a)
+{
+ unsigned ret = (BCH_ALLOC_V4_BACKPOINTERS_START(a) ?:
+ BCH_ALLOC_V4_U64s_V0) +
+ BCH_ALLOC_V4_NR_BACKPOINTERS(a) *
+ (sizeof(struct bch_backpointer) / sizeof(u64));
+
+ BUG_ON(ret > U8_MAX - BKEY_U64s);
+ return ret;
+}
+
+static inline void set_alloc_v4_u64s(struct bkey_i_alloc_v4 *a)
+{
+ set_bkey_val_u64s(&a->k, alloc_v4_u64s(&a->v));
+}
+
struct bkey_i_alloc_v4 *
bch2_trans_start_alloc_update(struct btree_trans *, struct btree_iter *, struct bpos);
-void bch2_alloc_to_v4(struct bkey_s_c, struct bch_alloc_v4 *);
+void __bch2_alloc_to_v4(struct bkey_s_c, struct bch_alloc_v4 *);
+
+static inline const struct bch_alloc_v4 *bch2_alloc_to_v4(struct bkey_s_c k, struct bch_alloc_v4 *convert)
+{
+ const struct bch_alloc_v4 *ret;
+
+ if (unlikely(k.k->type != KEY_TYPE_alloc_v4))
+ goto slowpath;
+
+ ret = bkey_s_c_to_alloc_v4(k).v;
+ if (BCH_ALLOC_V4_BACKPOINTERS_START(ret) != BCH_ALLOC_V4_U64s)
+ goto slowpath;
+
+ return ret;
+slowpath:
+ __bch2_alloc_to_v4(k, convert);
+ return convert;
+}
+
struct bkey_i_alloc_v4 *bch2_alloc_to_v4_mut(struct btree_trans *, struct bkey_s_c);
int bch2_bucket_io_time_reset(struct btree_trans *, unsigned, size_t, int);
-#define ALLOC_SCAN_BATCH(ca) max_t(size_t, 1, (ca)->mi.nbuckets >> 9)
-
-int bch2_alloc_v1_invalid(const struct bch_fs *, struct bkey_s_c, int, struct printbuf *);
-int bch2_alloc_v2_invalid(const struct bch_fs *, struct bkey_s_c, int, struct printbuf *);
-int bch2_alloc_v3_invalid(const struct bch_fs *, struct bkey_s_c, int, struct printbuf *);
-int bch2_alloc_v4_invalid(const struct bch_fs *, struct bkey_s_c, int, struct printbuf *);
+int bch2_alloc_v1_invalid(const struct bch_fs *, struct bkey_s_c, unsigned, struct printbuf *);
+int bch2_alloc_v2_invalid(const struct bch_fs *, struct bkey_s_c, unsigned, struct printbuf *);
+int bch2_alloc_v3_invalid(const struct bch_fs *, struct bkey_s_c, unsigned, struct printbuf *);
+int bch2_alloc_v4_invalid(const struct bch_fs *, struct bkey_s_c, unsigned, struct printbuf *);
void bch2_alloc_v4_swab(struct bkey_s);
void bch2_alloc_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
-#define bch2_bkey_ops_alloc (struct bkey_ops) { \
+#define bch2_bkey_ops_alloc ((struct bkey_ops) { \
.key_invalid = bch2_alloc_v1_invalid, \
.val_to_text = bch2_alloc_to_text, \
.trans_trigger = bch2_trans_mark_alloc, \
.atomic_trigger = bch2_mark_alloc, \
-}
+})
-#define bch2_bkey_ops_alloc_v2 (struct bkey_ops) { \
+#define bch2_bkey_ops_alloc_v2 ((struct bkey_ops) { \
.key_invalid = bch2_alloc_v2_invalid, \
.val_to_text = bch2_alloc_to_text, \
.trans_trigger = bch2_trans_mark_alloc, \
.atomic_trigger = bch2_mark_alloc, \
-}
+})
-#define bch2_bkey_ops_alloc_v3 (struct bkey_ops) { \
+#define bch2_bkey_ops_alloc_v3 ((struct bkey_ops) { \
.key_invalid = bch2_alloc_v3_invalid, \
.val_to_text = bch2_alloc_to_text, \
.trans_trigger = bch2_trans_mark_alloc, \
.atomic_trigger = bch2_mark_alloc, \
-}
+})
-#define bch2_bkey_ops_alloc_v4 (struct bkey_ops) { \
+#define bch2_bkey_ops_alloc_v4 ((struct bkey_ops) { \
.key_invalid = bch2_alloc_v4_invalid, \
.val_to_text = bch2_alloc_to_text, \
.swab = bch2_alloc_v4_swab, \
.trans_trigger = bch2_trans_mark_alloc, \
.atomic_trigger = bch2_mark_alloc, \
-}
+})
+
+int bch2_bucket_gens_invalid(const struct bch_fs *, struct bkey_s_c, unsigned, struct printbuf *);
+void bch2_bucket_gens_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
+
+#define bch2_bkey_ops_bucket_gens ((struct bkey_ops) { \
+ .key_invalid = bch2_bucket_gens_invalid, \
+ .val_to_text = bch2_bucket_gens_to_text, \
+})
+
+int bch2_bucket_gens_init(struct bch_fs *);
static inline bool bkey_is_alloc(const struct bkey *k)
{
}
int bch2_alloc_read(struct bch_fs *);
+int bch2_bucket_gens_read(struct bch_fs *);
-int bch2_trans_mark_alloc(struct btree_trans *, struct bkey_s_c,
- struct bkey_i *, unsigned);
+int bch2_trans_mark_alloc(struct btree_trans *, enum btree_id, unsigned,
+ struct bkey_s_c, struct bkey_i *, unsigned);
int bch2_check_alloc_info(struct bch_fs *);
int bch2_check_alloc_to_lru_refs(struct bch_fs *);
void bch2_do_discards(struct bch_fs *);
-static inline bool should_invalidate_buckets(struct bch_dev *ca)
+static inline u64 should_invalidate_buckets(struct bch_dev *ca,
+ struct bch_dev_usage u)
{
- struct bch_dev_usage u = bch2_dev_usage_read(ca);
+ u64 want_free = ca->mi.nbuckets >> 7;
+ u64 free = max_t(s64, 0,
+ u.d[BCH_DATA_free].buckets
+ + u.d[BCH_DATA_need_discard].buckets
+ - bch2_dev_buckets_reserved(ca, RESERVE_none));
- return u.d[BCH_DATA_cached].buckets &&
- u.buckets_unavailable + u.d[BCH_DATA_cached].buckets <
- ca->mi.nbuckets >> 7;
+ return clamp_t(s64, want_free - free, 0, u.d[BCH_DATA_cached].buckets);
}
void bch2_do_invalidates(struct bch_fs *);
+static inline struct bch_backpointer *alloc_v4_backpointers(struct bch_alloc_v4 *a)
+{
+ return (void *) ((u64 *) &a->v +
+ (BCH_ALLOC_V4_BACKPOINTERS_START(a) ?:
+ BCH_ALLOC_V4_U64s_V0));
+}
+
+static inline const struct bch_backpointer *alloc_v4_backpointers_c(const struct bch_alloc_v4 *a)
+{
+ return (void *) ((u64 *) &a->v + BCH_ALLOC_V4_BACKPOINTERS_START(a));
+}
+
int bch2_fs_freespace_init(struct bch_fs *);
void bch2_recalc_capacity(struct bch_fs *);