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| 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
|---|---|
| 2 | /* |
| 3 | * Copyright (c) 2021-2024 Oracle. All Rights Reserved. |
| 4 | * Author: Darrick J. Wong <djwong@kernel.org> |
| 5 | */ |
| 6 | #ifndef __XFS_SCRUB_ORPHANAGE_H__ |
| 7 | #define __XFS_SCRUB_ORPHANAGE_H__ |
| 8 | |
| 9 | #ifdef CONFIG_XFS_ONLINE_REPAIR |
| 10 | int xrep_orphanage_create(struct xfs_scrub *sc); |
| 11 | |
| 12 | /* |
| 13 | * If we're doing a repair, ensure that the orphanage exists and attach it to |
| 14 | * the scrub context. |
| 15 | */ |
| 16 | static inline int |
| 17 | xrep_orphanage_try_create( |
| 18 | struct xfs_scrub *sc) |
| 19 | { |
| 20 | int error; |
| 21 | |
| 22 | ASSERT(sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR); |
| 23 | |
| 24 | error = xrep_orphanage_create(sc); |
| 25 | switch (error) { |
| 26 | case 0: |
| 27 | case -ENOENT: |
| 28 | case -ENOTDIR: |
| 29 | case -ENOSPC: |
| 30 | /* |
| 31 | * If the orphanage can't be found or isn't a directory, we'll |
| 32 | * keep going, but we won't be able to attach the file to the |
| 33 | * orphanage if we can't find the parent. |
| 34 | */ |
| 35 | return 0; |
| 36 | } |
| 37 | |
| 38 | return error; |
| 39 | } |
| 40 | |
| 41 | int xrep_orphanage_iolock_two(struct xfs_scrub *sc); |
| 42 | |
| 43 | void xrep_orphanage_ilock(struct xfs_scrub *sc, unsigned int ilock_flags); |
| 44 | bool xrep_orphanage_ilock_nowait(struct xfs_scrub *sc, |
| 45 | unsigned int ilock_flags); |
| 46 | void xrep_orphanage_iunlock(struct xfs_scrub *sc, unsigned int ilock_flags); |
| 47 | |
| 48 | void xrep_orphanage_rele(struct xfs_scrub *sc); |
| 49 | |
| 50 | /* Information about a request to add a file to the orphanage. */ |
| 51 | struct xrep_adoption { |
| 52 | struct xfs_scrub *sc; |
| 53 | |
| 54 | /* Name used for the adoption. */ |
| 55 | struct xfs_name *xname; |
| 56 | |
| 57 | /* Parent pointer context tracking */ |
| 58 | struct xfs_parent_args ppargs; |
| 59 | |
| 60 | /* Block reservations for orphanage and child (if directory). */ |
| 61 | unsigned int orphanage_blkres; |
| 62 | unsigned int child_blkres; |
| 63 | |
| 64 | /* |
| 65 | * Does the caller want us to bump the child link count? This is not |
| 66 | * needed when reattaching files that have become disconnected but have |
| 67 | * nlink > 1. It is necessary when changing the directory tree |
| 68 | * structure. |
| 69 | */ |
| 70 | bool bump_child_nlink:1; |
| 71 | }; |
| 72 | |
| 73 | bool xrep_orphanage_can_adopt(struct xfs_scrub *sc); |
| 74 | |
| 75 | int xrep_adoption_trans_alloc(struct xfs_scrub *sc, |
| 76 | struct xrep_adoption *adopt); |
| 77 | int xrep_adoption_compute_name(struct xrep_adoption *adopt, |
| 78 | struct xfs_name *xname); |
| 79 | int xrep_adoption_move(struct xrep_adoption *adopt); |
| 80 | int xrep_adoption_trans_roll(struct xrep_adoption *adopt); |
| 81 | #else |
| 82 | struct xrep_adoption { /* empty */ }; |
| 83 | # define xrep_orphanage_rele(sc) ((void)0) |
| 84 | #endif /* CONFIG_XFS_ONLINE_REPAIR */ |
| 85 | |
| 86 | #endif /* __XFS_SCRUB_ORPHANAGE_H__ */ |
| 87 |
Warning: This file is not a C or C++ file. It does not have highlighting.