xref: /openbmc/linux/fs/xfs/xfs_iwalk.h (revision 23966841)
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 /* Walk all inodes in the filesystem starting from @startino. */
10 typedef int (*xfs_iwalk_fn)(struct xfs_mount *mp, struct xfs_trans *tp,
11 			    xfs_ino_t ino, void *data);
12 /* Return values for xfs_iwalk_fn. */
13 #define XFS_IWALK_CONTINUE	(XFS_ITER_CONTINUE)
14 #define XFS_IWALK_ABORT		(XFS_ITER_ABORT)
15 
16 int xfs_iwalk(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t startino,
17 		unsigned int flags, xfs_iwalk_fn iwalk_fn,
18 		unsigned int inode_records, void *data);
19 int xfs_iwalk_threaded(struct xfs_mount *mp, xfs_ino_t startino,
20 		unsigned int flags, xfs_iwalk_fn iwalk_fn,
21 		unsigned int inode_records, bool poll, void *data);
22 
23 /* Only iterate inodes within the same AG as @startino. */
24 #define XFS_IWALK_SAME_AG	(0x1)
25 
26 #define XFS_IWALK_FLAGS_ALL	(XFS_IWALK_SAME_AG)
27 
28 /* Walk all inode btree records in the filesystem starting from @startino. */
29 typedef int (*xfs_inobt_walk_fn)(struct xfs_mount *mp, struct xfs_trans *tp,
30 				 xfs_agnumber_t agno,
31 				 const struct xfs_inobt_rec_incore *irec,
32 				 void *data);
33 /* Return value (for xfs_inobt_walk_fn) that aborts the walk immediately. */
34 #define XFS_INOBT_WALK_ABORT	(XFS_IWALK_ABORT)
35 
36 int xfs_inobt_walk(struct xfs_mount *mp, struct xfs_trans *tp,
37 		xfs_ino_t startino, unsigned int flags,
38 		xfs_inobt_walk_fn inobt_walk_fn, unsigned int inobt_records,
39 		void *data);
40 
41 /* Only iterate inobt records within the same AG as @startino. */
42 #define XFS_INOBT_WALK_SAME_AG	(XFS_IWALK_SAME_AG)
43 
44 #define XFS_INOBT_WALK_FLAGS_ALL (XFS_INOBT_WALK_SAME_AG)
45 
46 #endif /* __XFS_IWALK_H__ */
47