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Darrick J. Wonga2114322019-07-02 09:39:38 -07001/* 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
Darrick J. Wonge7ee96d2019-08-28 14:37:57 -07009/*
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
Darrick J. Wonga2114322019-07-02 09:39:38 -070017/* Walk all inodes in the filesystem starting from @startino. */
18typedef int (*xfs_iwalk_fn)(struct xfs_mount *mp, struct xfs_trans *tp,
19 xfs_ino_t ino, void *data);
Darrick J. Wonga2114322019-07-02 09:39:38 -070020
21int xfs_iwalk(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t startino,
Darrick J. Wong13d59a22019-07-03 20:36:28 -070022 unsigned int flags, xfs_iwalk_fn iwalk_fn,
23 unsigned int inode_records, void *data);
Darrick J. Wong40786712019-07-03 07:33:26 -070024int xfs_iwalk_threaded(struct xfs_mount *mp, xfs_ino_t startino,
Darrick J. Wong13d59a22019-07-03 20:36:28 -070025 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 (0x1)
30
31#define XFS_IWALK_FLAGS_ALL (XFS_IWALK_SAME_AG)
Darrick J. Wonga2114322019-07-02 09:39:38 -070032
Darrick J. Wong04b8fba2019-07-02 09:39:43 -070033/* Walk all inode btree records in the filesystem starting from @startino. */
34typedef 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);
Darrick J. Wong04b8fba2019-07-02 09:39:43 -070038
39int xfs_inobt_walk(struct xfs_mount *mp, struct xfs_trans *tp,
Darrick J. Wong13d59a22019-07-03 20:36:28 -070040 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)
Darrick J. Wong04b8fba2019-07-02 09:39:43 -070048
Darrick J. Wonga2114322019-07-02 09:39:38 -070049#endif /* __XFS_IWALK_H__ */