diff options
Diffstat (limited to 'fs/xfs/scrub/bitmap.h')
| -rw-r--r-- | fs/xfs/scrub/bitmap.h | 36 |
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__ */ |