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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _BCACHEFS_JOURNAL_IO_H3#define _BCACHEFS_JOURNAL_IO_H4 5#include "darray.h"6 7void bch2_journal_pos_from_member_info_set(struct bch_fs *);8void bch2_journal_pos_from_member_info_resume(struct bch_fs *);9 10struct journal_ptr {11 bool csum_good;12 u8 dev;13 u32 bucket;14 u32 bucket_offset;15 u64 sector;16};17 18/*19 * Only used for holding the journal entries we read in btree_journal_read()20 * during cache_registration21 */22struct journal_replay {23 DARRAY_PREALLOCATED(struct journal_ptr, 8) ptrs;24 25 bool csum_good;26 bool ignore_blacklisted;27 bool ignore_not_dirty;28 /* must be last: */29 struct jset j;30};31 32static inline bool journal_replay_ignore(struct journal_replay *i)33{34 return !i || i->ignore_blacklisted || i->ignore_not_dirty;35}36 37static inline struct jset_entry *__jset_entry_type_next(struct jset *jset,38 struct jset_entry *entry, unsigned type)39{40 while (entry < vstruct_last(jset)) {41 if (entry->type == type)42 return entry;43 44 entry = vstruct_next(entry);45 }46 47 return NULL;48}49 50#define for_each_jset_entry_type(entry, jset, type) \51 for (struct jset_entry *entry = (jset)->start; \52 (entry = __jset_entry_type_next(jset, entry, type)); \53 entry = vstruct_next(entry))54 55#define jset_entry_for_each_key(_e, _k) \56 for (struct bkey_i *_k = (_e)->start; \57 _k < vstruct_last(_e); \58 _k = bkey_next(_k))59 60#define for_each_jset_key(k, entry, jset) \61 for_each_jset_entry_type(entry, jset, BCH_JSET_ENTRY_btree_keys)\62 jset_entry_for_each_key(entry, k)63 64int bch2_journal_entry_validate(struct bch_fs *, struct jset *,65 struct jset_entry *, unsigned, int,66 enum bch_validate_flags);67void bch2_journal_entry_to_text(struct printbuf *, struct bch_fs *,68 struct jset_entry *);69 70void bch2_journal_ptrs_to_text(struct printbuf *, struct bch_fs *,71 struct journal_replay *);72 73int bch2_journal_read(struct bch_fs *, u64 *, u64 *, u64 *);74 75CLOSURE_CALLBACK(bch2_journal_write);76 77static inline struct jset_entry *jset_entry_init(struct jset_entry **end, size_t size)78{79 struct jset_entry *entry = *end;80 unsigned u64s = DIV_ROUND_UP(size, sizeof(u64));81 82 memset(entry, 0, u64s * sizeof(u64));83 /*84 * The u64s field counts from the start of data, ignoring the shared85 * fields.86 */87 entry->u64s = cpu_to_le16(u64s - 1);88 89 *end = vstruct_next(*end);90 return entry;91}92 93#endif /* _BCACHEFS_JOURNAL_IO_H */94