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-rw-r--r--fs/bcachefs/journal_sb.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/fs/bcachefs/journal_sb.h b/fs/bcachefs/journal_sb.h
new file mode 100644
index 000000000000..ba40a7e8d90a
--- /dev/null
+++ b/fs/bcachefs/journal_sb.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include "super-io.h"
+#include "vstructs.h"
+
+static inline unsigned bch2_nr_journal_buckets(struct bch_sb_field_journal *j)
+{
+ return j
+ ? (__le64 *) vstruct_end(&j->field) - j->buckets
+ : 0;
+}
+
+static inline unsigned bch2_sb_field_journal_v2_nr_entries(struct bch_sb_field_journal_v2 *j)
+{
+ if (!j)
+ return 0;
+
+ return (struct bch_sb_field_journal_v2_entry *) vstruct_end(&j->field) - &j->d[0];
+}
+
+extern const struct bch_sb_field_ops bch_sb_field_ops_journal;
+extern const struct bch_sb_field_ops bch_sb_field_ops_journal_v2;
+
+int bch2_journal_buckets_to_sb(struct bch_fs *, struct bch_dev *, u64 *, unsigned);