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author | Kent Overstreet <kent.overstreet@gmail.com> | 2017-03-16 22:18:50 -0800 |
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committer | Kent Overstreet <kent.overstreet@gmail.com> | 2020-05-06 17:14:16 -0400 |
commit | 5f6131b81dfa624673447c41cfb69c151086b802 (patch) | |
tree | 0ad0a879f41bcbde4e2a09b5ebd5b37d75d6716a /fs/bcachefs/journal_io.h | |
parent | 919aaf1091ea67a2f9d22323d02e4828c013eb74 (diff) |
bcachefs: Initial commit
Fork of drivers/md/bcache
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Diffstat (limited to 'fs/bcachefs/journal_io.h')
-rw-r--r-- | fs/bcachefs/journal_io.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/fs/bcachefs/journal_io.h b/fs/bcachefs/journal_io.h new file mode 100644 index 000000000000..4236b7fc37ff --- /dev/null +++ b/fs/bcachefs/journal_io.h @@ -0,0 +1,45 @@ +#ifndef _BCACHEFS_JOURNAL_IO_H +#define _BCACHEFS_JOURNAL_IO_H + +struct bkey_i *bch2_journal_find_btree_root(struct bch_fs *, struct jset *, + enum btree_id, unsigned *); + +/* + * 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 *); + +int bch2_journal_entry_sectors(struct journal *); +void bch2_journal_write(struct closure *); + +#endif /* _BCACHEFS_JOURNAL_IO_H */ |