linux/fs/bcachefs/sb-clean.c

// SPDX-License-Identifier: GPL-2.0

#include "bcachefs.h"
#include "btree_update_interior.h"
#include "buckets.h"
#include "error.h"
#include "journal_io.h"
#include "replicas.h"
#include "sb-clean.h"
#include "super-io.h"

/*
 * BCH_SB_FIELD_clean:
 *
 * Btree roots, and a few other things, are recovered from the journal after an
 * unclean shutdown - but after a clean shutdown, to avoid having to read the
 * journal, we can store them in the superblock.
 *
 * bch_sb_field_clean simply contains a list of journal entries, stored exactly
 * as they would be in the journal:
 */

int bch2_sb_clean_validate_late(struct bch_fs *c, struct bch_sb_field_clean *clean,
				int write)
{ … }

static struct bkey_i *btree_root_find(struct bch_fs *c,
				      struct bch_sb_field_clean *clean,
				      struct jset *j,
				      enum btree_id id, unsigned *level)
{ … }

int bch2_verify_superblock_clean(struct bch_fs *c,
				 struct bch_sb_field_clean **cleanp,
				 struct jset *j)
{ … }

struct bch_sb_field_clean *bch2_read_superblock_clean(struct bch_fs *c)
{ … }

void bch2_journal_super_entries_add_common(struct bch_fs *c,
					   struct jset_entry **end,
					   u64 journal_seq)
{ … }

static int bch2_sb_clean_validate(struct bch_sb *sb, struct bch_sb_field *f,
				  enum bch_validate_flags flags, struct printbuf *err)
{ … }

static void bch2_sb_clean_to_text(struct printbuf *out, struct bch_sb *sb,
				  struct bch_sb_field *f)
{ … }

const struct bch_sb_field_ops bch_sb_field_ops_clean = …;

int bch2_fs_mark_dirty(struct bch_fs *c)
{ … }

void bch2_fs_mark_clean(struct bch_fs *c)
{ … }