X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=c_src%2Flibbcachefs%2Fbkey_methods.h;fp=c_src%2Flibbcachefs%2Fbkey_methods.h;h=0000000000000000000000000000000000000000;hb=b5fd066153c40a70a29caa1ea7987723ab687763;hp=ee82283722b759bbce174b2d902403c0024fe574;hpb=06ff8b55b70fda44d91b31b5511fafd1680a8934;p=bcachefs-tools-debian diff --git a/c_src/libbcachefs/bkey_methods.h b/c_src/libbcachefs/bkey_methods.h deleted file mode 100644 index ee82283..0000000 --- a/c_src/libbcachefs/bkey_methods.h +++ /dev/null @@ -1,179 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _BCACHEFS_BKEY_METHODS_H -#define _BCACHEFS_BKEY_METHODS_H - -#include "bkey.h" - -struct bch_fs; -struct btree; -struct btree_trans; -struct bkey; -enum btree_node_type; - -extern const char * const bch2_bkey_types[]; -extern const struct bkey_ops bch2_bkey_null_ops; - -/* - * key_invalid: checks validity of @k, returns 0 if good or -EINVAL if bad. If - * invalid, entire key will be deleted. - * - * When invalid, error string is returned via @err. @rw indicates whether key is - * being read or written; more aggressive checks can be enabled when rw == WRITE. - */ -struct bkey_ops { - int (*key_invalid)(struct bch_fs *c, struct bkey_s_c k, - enum bkey_invalid_flags flags, struct printbuf *err); - void (*val_to_text)(struct printbuf *, struct bch_fs *, - struct bkey_s_c); - void (*swab)(struct bkey_s); - bool (*key_normalize)(struct bch_fs *, struct bkey_s); - bool (*key_merge)(struct bch_fs *, struct bkey_s, struct bkey_s_c); - int (*trigger)(struct btree_trans *, enum btree_id, unsigned, - struct bkey_s_c, struct bkey_s, unsigned); - void (*compat)(enum btree_id id, unsigned version, - unsigned big_endian, int write, - struct bkey_s); - - /* Size of value type when first created: */ - unsigned min_val_size; -}; - -extern const struct bkey_ops bch2_bkey_ops[]; - -static inline const struct bkey_ops *bch2_bkey_type_ops(enum bch_bkey_type type) -{ - return likely(type < KEY_TYPE_MAX) - ? &bch2_bkey_ops[type] - : &bch2_bkey_null_ops; -} - -int bch2_bkey_val_invalid(struct bch_fs *, struct bkey_s_c, - enum bkey_invalid_flags, struct printbuf *); -int __bch2_bkey_invalid(struct bch_fs *, struct bkey_s_c, enum btree_node_type, - enum bkey_invalid_flags, struct printbuf *); -int bch2_bkey_invalid(struct bch_fs *, struct bkey_s_c, enum btree_node_type, - enum bkey_invalid_flags, struct printbuf *); -int bch2_bkey_in_btree_node(struct bch_fs *, struct btree *, - struct bkey_s_c, struct printbuf *); - -void bch2_bpos_to_text(struct printbuf *, struct bpos); -void bch2_bkey_to_text(struct printbuf *, const struct bkey *); -void bch2_val_to_text(struct printbuf *, struct bch_fs *, - struct bkey_s_c); -void bch2_bkey_val_to_text(struct printbuf *, struct bch_fs *, - struct bkey_s_c); - -void bch2_bkey_swab_val(struct bkey_s); - -bool bch2_bkey_normalize(struct bch_fs *, struct bkey_s); - -static inline bool bch2_bkey_maybe_mergable(const struct bkey *l, const struct bkey *r) -{ - return l->type == r->type && - !bversion_cmp(l->version, r->version) && - bpos_eq(l->p, bkey_start_pos(r)); -} - -bool bch2_bkey_merge(struct bch_fs *, struct bkey_s, struct bkey_s_c); - -enum btree_update_flags { - __BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE = __BTREE_ITER_FLAGS_END, - __BTREE_UPDATE_NOJOURNAL, - __BTREE_UPDATE_KEY_CACHE_RECLAIM, - - __BTREE_TRIGGER_NORUN, - __BTREE_TRIGGER_TRANSACTIONAL, - __BTREE_TRIGGER_INSERT, - __BTREE_TRIGGER_OVERWRITE, - __BTREE_TRIGGER_GC, - __BTREE_TRIGGER_BUCKET_INVALIDATE, -}; - -#define BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE (1U << __BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE) -#define BTREE_UPDATE_NOJOURNAL (1U << __BTREE_UPDATE_NOJOURNAL) -#define BTREE_UPDATE_KEY_CACHE_RECLAIM (1U << __BTREE_UPDATE_KEY_CACHE_RECLAIM) - -/* Don't run triggers at all */ -#define BTREE_TRIGGER_NORUN (1U << __BTREE_TRIGGER_NORUN) - -/* - * If set, we're running transactional triggers as part of a transaction commit: - * triggers may generate new updates - * - * If cleared, and either BTREE_TRIGGER_INSERT|BTREE_TRIGGER_OVERWRITE are set, - * we're running atomic triggers during a transaction commit: we have our - * journal reservation, we're holding btree node write locks, and we know the - * transaction is going to commit (returning an error here is a fatal error, - * causing us to go emergency read-only) - */ -#define BTREE_TRIGGER_TRANSACTIONAL (1U << __BTREE_TRIGGER_TRANSACTIONAL) - -/* @new is entering the btree */ -#define BTREE_TRIGGER_INSERT (1U << __BTREE_TRIGGER_INSERT) - -/* @old is leaving the btree */ -#define BTREE_TRIGGER_OVERWRITE (1U << __BTREE_TRIGGER_OVERWRITE) - -/* We're in gc/fsck: running triggers to recalculate e.g. disk usage */ -#define BTREE_TRIGGER_GC (1U << __BTREE_TRIGGER_GC) - -/* signal from bucket invalidate path to alloc trigger */ -#define BTREE_TRIGGER_BUCKET_INVALIDATE (1U << __BTREE_TRIGGER_BUCKET_INVALIDATE) - -static inline int bch2_key_trigger(struct btree_trans *trans, - enum btree_id btree, unsigned level, - struct bkey_s_c old, struct bkey_s new, - unsigned flags) -{ - const struct bkey_ops *ops = bch2_bkey_type_ops(old.k->type ?: new.k->type); - - return ops->trigger - ? ops->trigger(trans, btree, level, old, new, flags) - : 0; -} - -static inline int bch2_key_trigger_old(struct btree_trans *trans, - enum btree_id btree_id, unsigned level, - struct bkey_s_c old, unsigned flags) -{ - struct bkey_i deleted; - - bkey_init(&deleted.k); - deleted.k.p = old.k->p; - - return bch2_key_trigger(trans, btree_id, level, old, bkey_i_to_s(&deleted), - BTREE_TRIGGER_OVERWRITE|flags); -} - -static inline int bch2_key_trigger_new(struct btree_trans *trans, - enum btree_id btree_id, unsigned level, - struct bkey_s new, unsigned flags) -{ - struct bkey_i deleted; - - bkey_init(&deleted.k); - deleted.k.p = new.k->p; - - return bch2_key_trigger(trans, btree_id, level, bkey_i_to_s_c(&deleted), new, - BTREE_TRIGGER_INSERT|flags); -} - -void bch2_bkey_renumber(enum btree_node_type, struct bkey_packed *, int); - -void __bch2_bkey_compat(unsigned, enum btree_id, unsigned, unsigned, - int, struct bkey_format *, struct bkey_packed *); - -static inline void bch2_bkey_compat(unsigned level, enum btree_id btree_id, - unsigned version, unsigned big_endian, - int write, - struct bkey_format *f, - struct bkey_packed *k) -{ - if (version < bcachefs_metadata_version_current || - big_endian != CPU_BIG_ENDIAN) - __bch2_bkey_compat(level, btree_id, version, - big_endian, write, f, k); - -} - -#endif /* _BCACHEFS_BKEY_METHODS_H */