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-rw-r--r--libbcachefs/alloc_background.h274
1 files changed, 0 insertions, 274 deletions
diff --git a/libbcachefs/alloc_background.h b/libbcachefs/alloc_background.h
deleted file mode 100644
index e7f7e842..00000000
--- a/libbcachefs/alloc_background.h
+++ /dev/null
@@ -1,274 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _BCACHEFS_ALLOC_BACKGROUND_H
-#define _BCACHEFS_ALLOC_BACKGROUND_H
-
-#include "bcachefs.h"
-#include "alloc_types.h"
-#include "buckets.h"
-#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-/* How out of date a pointer gen is allowed to be: */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
-
-static inline bool bch2_dev_bucket_exists(struct bch_fs *c, struct bpos pos)
-{
- struct bch_dev *ca;
-
- if (!bch2_dev_exists2(c, pos.inode))
- return false;
-
- ca = bch_dev_bkey_exists(c, pos.inode);
- return pos.offset >= ca->mi.first_bucket &&
- pos.offset < ca->mi.nbuckets;
-}
-
-static inline u64 bucket_to_u64(struct bpos bucket)
-{
- return (bucket.inode << 48) | bucket.offset;
-}
-
-static inline struct bpos u64_to_bucket(u64 bucket)
-{
- return POS(bucket >> 48, bucket & ~(~0ULL << 48));
-}
-
-static inline u8 alloc_gc_gen(struct bch_alloc_v4 a)
-{
- return a.gen - a.oldest_gen;
-}
-
-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 (stripe)
- return data_type == BCH_DATA_parity ? data_type : BCH_DATA_stripe;
- if (dirty_sectors)
- return data_type;
- if (cached_sectors)
- return BCH_DATA_cached;
- if (BCH_ALLOC_V4_NEED_DISCARD(&a))
- return BCH_DATA_need_discard;
- if (alloc_gc_gen(a) >= BUCKET_GC_GEN_MAX)
- 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 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;
-}
-
-static inline struct bpos alloc_freespace_pos(struct bpos pos, struct bch_alloc_v4 a)
-{
- pos.offset |= alloc_freespace_genbits(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 *);
-
-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);
-
-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, \
- .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, \
- .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, \
- .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, \
- .trigger = bch2_trigger_alloc, \
- .min_val_size = 48, \
-})
-
-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) { \
- .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)
-{
- return k->type == KEY_TYPE_alloc ||
- k->type == KEY_TYPE_alloc_v2 ||
- k->type == KEY_TYPE_alloc_v3;
-}
-
-int bch2_alloc_read(struct bch_fs *);
-
-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 *);
-
-static inline u64 should_invalidate_buckets(struct bch_dev *ca,
- struct bch_dev_usage u)
-{
- 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, BCH_WATERMARK_stripe));
-
- 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_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_init(struct bch_fs *);
-
-#endif /* _BCACHEFS_ALLOC_BACKGROUND_H */
generated by cgit v1.2.3 (git 2.46.0) at 2025-07-01 15:25:43 +0000