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Diffstat (limited to 'fs/bcachefs/disk_groups_format.h')
-rw-r--r--fs/bcachefs/disk_groups_format.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/bcachefs/disk_groups_format.h b/fs/bcachefs/disk_groups_format.h
new file mode 100644
index 000000000000..698990bbf1d2
--- /dev/null
+++ b/fs/bcachefs/disk_groups_format.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BCACHEFS_DISK_GROUPS_FORMAT_H
+#define _BCACHEFS_DISK_GROUPS_FORMAT_H
+
+#define BCH_SB_LABEL_SIZE 32
+
+struct bch_disk_group {
+ __u8 label[BCH_SB_LABEL_SIZE];
+ __le64 flags[2];
+} __packed __aligned(8);
+
+LE64_BITMASK(BCH_GROUP_DELETED, struct bch_disk_group, flags[0], 0, 1)
+LE64_BITMASK(BCH_GROUP_DATA_ALLOWED, struct bch_disk_group, flags[0], 1, 6)
+LE64_BITMASK(BCH_GROUP_PARENT, struct bch_disk_group, flags[0], 6, 24)
+
+struct bch_sb_field_disk_groups {
+ struct bch_sb_field field;
+ struct bch_disk_group entries[];
+} __packed __aligned(8);
+
+#endif /* _BCACHEFS_DISK_GROUPS_FORMAT_H */