#include "debug.h"
#include "super.h"
+enum bkey_invalid_flags;
+
/* How out of date a pointer gen is allowed to be: */
#define BUCKET_GC_GEN_MAX 96U
struct bch_alloc_v4 a,
enum bch_data_type data_type)
{
+ if (stripe)
+ return data_type == BCH_DATA_parity ? data_type : BCH_DATA_stripe;
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))
a.stripe, a, data_type);
}
-static inline u64 alloc_lru_idx(struct bch_alloc_v4 a)
+static inline enum bch_data_type bucket_data_type(enum bch_data_type data_type)
+{
+ return data_type == BCH_DATA_stripe ? BCH_DATA_user : data_type;
+}
+
+static inline unsigned bch2_bucket_sectors(struct bch_alloc_v4 a)
+{
+ return a.dirty_sectors + a.cached_sectors;
+}
+
+static inline unsigned bch2_bucket_sectors_dirty(struct bch_alloc_v4 a)
+{
+ return a.dirty_sectors;
+}
+
+static inline unsigned bch2_bucket_sectors_fragmented(struct bch_dev *ca,
+ struct bch_alloc_v4 a)
+{
+ int d = bch2_bucket_sectors_dirty(a);
+
+ return d ? max(0, ca->mi.bucket_size - d) : 0;
+}
+
+static inline u64 alloc_lru_idx_read(struct bch_alloc_v4 a)
{
return a.data_type == BCH_DATA_cached ? a.io_time[READ] : 0;
}
+#define DATA_TYPES_MOVABLE \
+ ((1U << BCH_DATA_btree)| \
+ (1U << BCH_DATA_user)| \
+ (1U << BCH_DATA_stripe))
+
+static inline bool data_type_movable(enum bch_data_type type)
+{
+ return (1U << type) & DATA_TYPES_MOVABLE;
+}
+
+static inline u64 alloc_lru_idx_fragmentation(struct bch_alloc_v4 a,
+ struct bch_dev *ca)
+{
+ if (!data_type_movable(a.data_type) ||
+ !bch2_bucket_sectors_fragmented(ca, a))
+ return 0;
+
+ u64 d = bch2_bucket_sectors_dirty(a);
+ return div_u64(d * (1ULL << 31), ca->mi.bucket_size);
+}
+
static inline u64 alloc_freespace_genbits(struct bch_alloc_v4 a)
{
return ((u64) alloc_gc_gen(a) >> 4) << 56;
int bch2_bucket_io_time_reset(struct btree_trans *, unsigned, size_t, int);
-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(struct bch_fs *, struct bkey_s_c,
+ enum bkey_invalid_flags, struct printbuf *);
+int bch2_alloc_v2_invalid(struct bch_fs *, struct bkey_s_c,
+ enum bkey_invalid_flags, struct printbuf *);
+int bch2_alloc_v3_invalid(struct bch_fs *, struct bkey_s_c,
+ enum bkey_invalid_flags, struct printbuf *);
+int bch2_alloc_v4_invalid(struct bch_fs *, struct bkey_s_c,
+ enum bkey_invalid_flags, 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) { \
.key_invalid = bch2_alloc_v1_invalid, \
.val_to_text = bch2_alloc_to_text, \
- .trans_trigger = bch2_trans_mark_alloc, \
- .atomic_trigger = bch2_mark_alloc, \
+ .trigger = bch2_trigger_alloc, \
+ .min_val_size = 8, \
})
#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, \
+ .trigger = bch2_trigger_alloc, \
+ .min_val_size = 8, \
})
#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, \
+ .trigger = bch2_trigger_alloc, \
+ .min_val_size = 16, \
})
#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, \
+ .trigger = bch2_trigger_alloc, \
+ .min_val_size = 48, \
})
-int bch2_bucket_gens_invalid(const struct bch_fs *, struct bkey_s_c, int, struct printbuf *);
+int bch2_bucket_gens_invalid(struct bch_fs *, struct bkey_s_c,
+ enum bkey_invalid_flags, 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) { \
}
int bch2_alloc_read(struct bch_fs *);
-int bch2_bucket_gens_read(struct bch_fs *);
-int bch2_trans_mark_alloc(struct btree_trans *, enum btree_id, unsigned,
- struct bkey_s_c, struct bkey_i *, unsigned);
+int bch2_trigger_alloc(struct btree_trans *, enum btree_id, unsigned,
+ struct bkey_s_c, struct bkey_s, 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 *);
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));
+ - bch2_dev_buckets_reserved(ca, BCH_WATERMARK_stripe));
return clamp_t(s64, want_free - free, 0, u.d[BCH_DATA_cached].buckets);
}
return (void *) ((u64 *) &a->v + BCH_ALLOC_V4_BACKPOINTERS_START(a));
}
+int bch2_dev_freespace_init(struct bch_fs *, struct bch_dev *, u64, u64);
int bch2_fs_freespace_init(struct bch_fs *);
void bch2_recalc_capacity(struct bch_fs *);
+u64 bch2_min_rw_member_capacity(struct bch_fs *);
void bch2_dev_allocator_remove(struct bch_fs *, struct bch_dev *);
void bch2_dev_allocator_add(struct bch_fs *, struct bch_dev *);
+void bch2_fs_allocator_background_exit(struct bch_fs *);
void bch2_fs_allocator_background_init(struct bch_fs *);
#endif /* _BCACHEFS_ALLOC_BACKGROUND_H */