[linux-block.git] / fs / bcachefs / journal_io.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_JOURNAL_IO_H
#define _BCACHEFS_JOURNAL_IO_H

/*
 * Only used for holding the journal entries we read in btree_journal_read()
 * during cache_registration
 */
struct journal_replay {
	struct list_head	list;
	struct bch_devs_list	devs;
	/* must be last: */
	struct jset		j;
};

static inline struct jset_entry *__jset_entry_type_next(struct jset *jset,
					struct jset_entry *entry, unsigned type)
{
	while (entry < vstruct_last(jset)) {
		if (entry->type == type)
			return entry;

		entry = vstruct_next(entry);
	}

	return NULL;
}

#define for_each_jset_entry_type(entry, jset, type)			\
	for (entry = (jset)->start;					\
	     (entry = __jset_entry_type_next(jset, entry, type));	\
	     entry = vstruct_next(entry))

#define for_each_jset_key(k, _n, entry, jset)				\
	for_each_jset_entry_type(entry, jset, BCH_JSET_ENTRY_btree_keys)	\
		vstruct_for_each_safe(entry, k, _n)

int bch2_journal_read(struct bch_fs *, struct list_head *);

void bch2_journal_write(struct closure *);

#endif /* _BCACHEFS_JOURNAL_IO_H */
Commit	Line	Data
1c6fdbd8 KO	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	#ifndef _BCACHEFS_JOURNAL_IO_H
	3	#define _BCACHEFS_JOURNAL_IO_H
	4
	5	/*
	6	* Only used for holding the journal entries we read in btree_journal_read()
	7	* during cache_registration
	8	*/
	9	struct journal_replay {
	10	struct list_head list;
	11	struct bch_devs_list devs;
	12	/* must be last: */
	13	struct jset j;
	14	};
	15
	16	static inline struct jset_entry __jset_entry_type_next(struct jset jset,
	17	struct jset_entry *entry, unsigned type)
	18	{
	19	while (entry < vstruct_last(jset)) {
	20	if (entry->type == type)
	21	return entry;
	22
	23	entry = vstruct_next(entry);
	24	}
	25
	26	return NULL;
	27	}
	28
	29	#define for_each_jset_entry_type(entry, jset, type) \
	30	for (entry = (jset)->start; \
	31	(entry = __jset_entry_type_next(jset, entry, type)); \
	32	entry = vstruct_next(entry))
	33
	34	#define for_each_jset_key(k, _n, entry, jset) \
	35	for_each_jset_entry_type(entry, jset, BCH_JSET_ENTRY_btree_keys) \
	36	vstruct_for_each_safe(entry, k, _n)
	37
1c6fdbd8 KO	38	int bch2_journal_read(struct bch_fs , struct list_head );
1c6fdbd8 KO	39
1c6fdbd8 KO	40	void bch2_journal_write(struct closure *);
	41
	42	#endif /* _BCACHEFS_JOURNAL_IO_H */