1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Copyright (C) 2019 Oracle. All Rights Reserved. |
4 | * Author: Darrick J. Wong <darrick.wong@oracle.com> |
5 | */ |
6 | #ifndef __XFS_IWALK_H__ |
7 | #define __XFS_IWALK_H__ |
8 | |
9 | /* |
10 | * Return codes for the inode/inobt walk function are 0 to continue iterating, |
11 | * and non-zero to stop iterating. Any non-zero value will be passed up to the |
12 | * iwalk or inobt_walk caller. The special value -ECANCELED can be used to |
13 | * stop iteration, as neither iwalk nor inobt_walk will ever generate that |
14 | * error code on their own. |
15 | */ |
16 | |
17 | /* Walk all inodes in the filesystem starting from @startino. */ |
18 | typedef int (*xfs_iwalk_fn)(struct xfs_mount *mp, struct xfs_trans *tp, |
19 | xfs_ino_t ino, void *data); |
20 | |
21 | int xfs_iwalk(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t startino, |
22 | unsigned int flags, xfs_iwalk_fn iwalk_fn, |
23 | unsigned int inode_records, void *data); |
24 | int xfs_iwalk_threaded(struct xfs_mount *mp, xfs_ino_t startino, |
25 | unsigned int flags, xfs_iwalk_fn iwalk_fn, |
26 | unsigned int inode_records, bool poll, void *data); |
27 | |
28 | /* Only iterate inodes within the same AG as @startino. */ |
29 | #define XFS_IWALK_SAME_AG (1U << 0) |
30 | |
31 | #define XFS_IWALK_FLAGS_ALL (XFS_IWALK_SAME_AG) |
32 | |
33 | /* Walk all inode btree records in the filesystem starting from @startino. */ |
34 | typedef int (*xfs_inobt_walk_fn)(struct xfs_mount *mp, struct xfs_trans *tp, |
35 | xfs_agnumber_t agno, |
36 | const struct xfs_inobt_rec_incore *irec, |
37 | void *data); |
38 | |
39 | int xfs_inobt_walk(struct xfs_mount *mp, struct xfs_trans *tp, |
40 | xfs_ino_t startino, unsigned int flags, |
41 | xfs_inobt_walk_fn inobt_walk_fn, unsigned int inobt_records, |
42 | void *data); |
43 | |
44 | /* Only iterate inobt records within the same AG as @startino. */ |
45 | #define XFS_INOBT_WALK_SAME_AG (XFS_IWALK_SAME_AG) |
46 | |
47 | #define XFS_INOBT_WALK_FLAGS_ALL (XFS_INOBT_WALK_SAME_AG) |
48 | |
49 | #endif /* __XFS_IWALK_H__ */ |
50 | |