diff options
Diffstat (limited to 'fs/bcachefs/alloc_background.h')
-rw-r--r-- | fs/bcachefs/alloc_background.h | 109 |
1 files changed, 71 insertions, 38 deletions
diff --git a/fs/bcachefs/alloc_background.h b/fs/bcachefs/alloc_background.h index 2790e516383d..ae31a94be6f9 100644 --- a/fs/bcachefs/alloc_background.h +++ b/fs/bcachefs/alloc_background.h @@ -8,21 +8,18 @@ #include "debug.h" #include "super.h" -enum bkey_invalid_flags; +enum bch_validate_flags; /* How out of date a pointer gen is allowed to be: */ #define BUCKET_GC_GEN_MAX 96U static inline bool bch2_dev_bucket_exists(struct bch_fs *c, struct bpos pos) { - struct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; + rcu_read_lock(); + struct bch_dev *ca = bch2_dev_rcu(c, pos.inode); + bool ret = ca && bucket_valid(ca, pos.offset); + rcu_read_unlock(); + return ret; } static inline u64 bucket_to_u64(struct bpos bucket) @@ -40,38 +37,50 @@ 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) +static inline void alloc_to_bucket(struct bucket *dst, struct bch_alloc_v4 src) { - 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; + dst->gen = src.gen; + dst->data_type = src.data_type; + dst->dirty_sectors = src.dirty_sectors; + dst->cached_sectors = src.cached_sectors; + dst->stripe = src.stripe; } -static inline enum bch_data_type alloc_data_type(struct bch_alloc_v4 a, - enum bch_data_type data_type) +static inline void __bucket_m_to_alloc(struct bch_alloc_v4 *dst, struct bucket src) { - return __alloc_data_type(a.dirty_sectors, a.cached_sectors, - a.stripe, a, data_type); + dst->gen = src.gen; + dst->data_type = src.data_type; + dst->dirty_sectors = src.dirty_sectors; + dst->cached_sectors = src.cached_sectors; + dst->stripe = src.stripe; +} + +static inline struct bch_alloc_v4 bucket_m_to_alloc(struct bucket b) +{ + struct bch_alloc_v4 ret = {}; + __bucket_m_to_alloc(&ret, b); + return ret; } 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; + switch (data_type) { + case BCH_DATA_cached: + case BCH_DATA_stripe: + return BCH_DATA_user; + default: + return data_type; + } +} + +static inline bool bucket_data_type_mismatch(enum bch_data_type bucket, + enum bch_data_type ptr) +{ + return !data_type_is_empty(bucket) && + bucket_data_type(bucket) != bucket_data_type(ptr); } -static inline unsigned bch2_bucket_sectors(struct bch_alloc_v4 a) +static inline unsigned bch2_bucket_sectors_total(struct bch_alloc_v4 a) { return a.dirty_sectors + a.cached_sectors; } @@ -89,6 +98,27 @@ static inline unsigned bch2_bucket_sectors_fragmented(struct bch_dev *ca, return d ? max(0, ca->mi.bucket_size - d) : 0; } +static inline enum bch_data_type alloc_data_type(struct bch_alloc_v4 a, + enum bch_data_type data_type) +{ + if (a.stripe) + return data_type == BCH_DATA_parity ? data_type : BCH_DATA_stripe; + if (a.dirty_sectors) + return data_type; + if (a.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 void alloc_data_type_set(struct bch_alloc_v4 *a, enum bch_data_type data_type) +{ + a->data_type = alloc_data_type(*a, data_type); +} + static inline u64 alloc_lru_idx_read(struct bch_alloc_v4 a) { return a.data_type == BCH_DATA_cached ? a.io_time[READ] : 0; @@ -147,7 +177,9 @@ static inline void set_alloc_v4_u64s(struct bkey_i_alloc_v4 *a) } struct bkey_i_alloc_v4 * -bch2_trans_start_alloc_update(struct btree_trans *, struct btree_iter *, struct bpos); +bch2_trans_start_alloc_update_noupdate(struct btree_trans *, struct btree_iter *, struct bpos); +struct bkey_i_alloc_v4 * +bch2_trans_start_alloc_update(struct btree_trans *, struct bpos); void __bch2_alloc_to_v4(struct bkey_s_c, struct bch_alloc_v4 *); @@ -173,13 +205,13 @@ struct bkey_i_alloc_v4 *bch2_alloc_to_v4_mut(struct btree_trans *, struct bkey_s 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 *); + enum bch_validate_flags, struct printbuf *); int bch2_alloc_v2_invalid(struct bch_fs *, struct bkey_s_c, - enum bkey_invalid_flags, struct printbuf *); + enum bch_validate_flags, struct printbuf *); int bch2_alloc_v3_invalid(struct bch_fs *, struct bkey_s_c, - enum bkey_invalid_flags, struct printbuf *); + enum bch_validate_flags, struct printbuf *); int bch2_alloc_v4_invalid(struct bch_fs *, struct bkey_s_c, - enum bkey_invalid_flags, struct printbuf *); + enum bch_validate_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); @@ -213,7 +245,7 @@ void bch2_alloc_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c); }) int bch2_bucket_gens_invalid(struct bch_fs *, struct bkey_s_c, - enum bkey_invalid_flags, struct printbuf *); + enum bch_validate_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) { \ @@ -233,7 +265,8 @@ static inline bool bkey_is_alloc(const struct bkey *k) 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); + struct bkey_s_c, struct bkey_s, + enum btree_iter_update_trigger_flags); 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 *); |