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-rw-r--r--fs/xfs/scrub/bitmap.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/fs/xfs/scrub/bitmap.h b/fs/xfs/scrub/bitmap.h
new file mode 100644
index 000000000000..ae8ecbce6fa6
--- /dev/null
+++ b/fs/xfs/scrub/bitmap.h
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Oracle. All Rights Reserved.
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ */
+#ifndef __XFS_SCRUB_BITMAP_H__
+#define __XFS_SCRUB_BITMAP_H__
+
+struct xfs_bitmap_range {
+ struct list_head list;
+ uint64_t start;
+ uint64_t len;
+};
+
+struct xfs_bitmap {
+ struct list_head list;
+};
+
+void xfs_bitmap_init(struct xfs_bitmap *bitmap);
+void xfs_bitmap_destroy(struct xfs_bitmap *bitmap);
+
+#define for_each_xfs_bitmap_extent(bex, n, bitmap) \
+ list_for_each_entry_safe((bex), (n), &(bitmap)->list, list)
+
+#define for_each_xfs_bitmap_block(b, bex, n, bitmap) \
+ list_for_each_entry_safe((bex), (n), &(bitmap)->list, list) \
+ for ((b) = bex->start; (b) < bex->start + bex->len; (b)++)
+
+int xfs_bitmap_set(struct xfs_bitmap *bitmap, uint64_t start, uint64_t len);
+int xfs_bitmap_disunion(struct xfs_bitmap *bitmap, struct xfs_bitmap *sub);
+int xfs_bitmap_set_btcur_path(struct xfs_bitmap *bitmap,
+ struct xfs_btree_cur *cur);
+int xfs_bitmap_set_btblocks(struct xfs_bitmap *bitmap,
+ struct xfs_btree_cur *cur);
+
+#endif /* __XFS_SCRUB_BITMAP_H__ */