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| 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
|---|---|
| 2 | /* |
| 3 | * Copyright (C) 2022-2023 Oracle. All Rights Reserved. |
| 4 | * Author: Darrick J. Wong <djwong@kernel.org> |
| 5 | */ |
| 6 | #ifndef __XFS_SCRUB_REAP_H__ |
| 7 | #define __XFS_SCRUB_REAP_H__ |
| 8 | |
| 9 | struct xagb_bitmap; |
| 10 | struct xfsb_bitmap; |
| 11 | |
| 12 | int xrep_reap_agblocks(struct xfs_scrub *sc, struct xagb_bitmap *bitmap, |
| 13 | const struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type); |
| 14 | int xrep_reap_fsblocks(struct xfs_scrub *sc, struct xfsb_bitmap *bitmap, |
| 15 | const struct xfs_owner_info *oinfo); |
| 16 | int xrep_reap_ifork(struct xfs_scrub *sc, struct xfs_inode *ip, int whichfork); |
| 17 | int xrep_reap_metadir_fsblocks(struct xfs_scrub *sc, |
| 18 | struct xfsb_bitmap *bitmap); |
| 19 | |
| 20 | #ifdef CONFIG_XFS_RT |
| 21 | int xrep_reap_rtblocks(struct xfs_scrub *sc, struct xrtb_bitmap *bitmap, |
| 22 | const struct xfs_owner_info *oinfo); |
| 23 | #else |
| 24 | # define xrep_reap_rtblocks(...) (-EOPNOTSUPP) |
| 25 | #endif /* CONFIG_XFS_RT */ |
| 26 | |
| 27 | /* Buffer cache scan context. */ |
| 28 | struct xrep_bufscan { |
| 29 | /* Disk address for the buffers we want to scan. */ |
| 30 | xfs_daddr_t daddr; |
| 31 | |
| 32 | /* Maximum number of sectors to scan. */ |
| 33 | xfs_daddr_t max_sectors; |
| 34 | |
| 35 | /* Each round, increment the search length by this number of sectors. */ |
| 36 | xfs_daddr_t daddr_step; |
| 37 | |
| 38 | /* Internal scan state; initialize to zero. */ |
| 39 | xfs_daddr_t __sector_count; |
| 40 | }; |
| 41 | |
| 42 | xfs_daddr_t xrep_bufscan_max_sectors(struct xfs_mount *mp, |
| 43 | xfs_extlen_t fsblocks); |
| 44 | struct xfs_buf *xrep_bufscan_advance(struct xfs_mount *mp, |
| 45 | struct xrep_bufscan *scan); |
| 46 | |
| 47 | #endif /* __XFS_SCRUB_REAP_H__ */ |
| 48 |
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