root/fs/xfs/scrub/bitmap.h

INCLUDED FROM

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2018 Oracle.  All Rights Reserved.
   4  * Author: Darrick J. Wong <darrick.wong@oracle.com>
   5  */
   6 #ifndef __XFS_SCRUB_BITMAP_H__
   7 #define __XFS_SCRUB_BITMAP_H__
   8 
   9 struct xfs_bitmap_range {
  10         struct list_head        list;
  11         uint64_t                start;
  12         uint64_t                len;
  13 };
  14 
  15 struct xfs_bitmap {
  16         struct list_head        list;
  17 };
  18 
  19 void xfs_bitmap_init(struct xfs_bitmap *bitmap);
  20 void xfs_bitmap_destroy(struct xfs_bitmap *bitmap);
  21 
  22 #define for_each_xfs_bitmap_extent(bex, n, bitmap) \
  23         list_for_each_entry_safe((bex), (n), &(bitmap)->list, list)
  24 
  25 #define for_each_xfs_bitmap_block(b, bex, n, bitmap) \
  26         list_for_each_entry_safe((bex), (n), &(bitmap)->list, list) \
  27                 for ((b) = bex->start; (b) < bex->start + bex->len; (b)++)
  28 
  29 int xfs_bitmap_set(struct xfs_bitmap *bitmap, uint64_t start, uint64_t len);
  30 int xfs_bitmap_disunion(struct xfs_bitmap *bitmap, struct xfs_bitmap *sub);
  31 int xfs_bitmap_set_btcur_path(struct xfs_bitmap *bitmap,
  32                 struct xfs_btree_cur *cur);
  33 int xfs_bitmap_set_btblocks(struct xfs_bitmap *bitmap,
  34                 struct xfs_btree_cur *cur);
  35 
  36 #endif  /* __XFS_SCRUB_BITMAP_H__ */