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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019 Oracle. All Rights Reserved.
* Author: Darrick J. Wong <darrick.wong@oracle.com>
*/
#ifndef __XFS_IWALK_H__
#define __XFS_IWALK_H__
/*
* Return codes for the inode/inobt walk function are 0 to continue iterating,
* and non-zero to stop iterating. Any non-zero value will be passed up to the
* iwalk or inobt_walk caller. The special value -ECANCELED can be used to
* stop iteration, as neither iwalk nor inobt_walk will ever generate that
* error code on their own.
*/
/* Walk all inodes in the filesystem starting from @startino. */
typedef int (*xfs_iwalk_fn)(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_ino_t ino, void *data);
int xfs_iwalk(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t startino,
unsigned int flags, xfs_iwalk_fn iwalk_fn,
unsigned int inode_records, void *data);
int xfs_iwalk_threaded(struct xfs_mount *mp, xfs_ino_t startino,
unsigned int flags, xfs_iwalk_fn iwalk_fn,
unsigned int inode_records, bool poll, void *data);
/* Only iterate inodes within the same AG as @startino. */
#define XFS_IWALK_SAME_AG (1U << 0)
#define XFS_IWALK_FLAGS_ALL (XFS_IWALK_SAME_AG)
/* Walk all inode btree records in the filesystem starting from @startino. */
typedef int (*xfs_inobt_walk_fn)(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_agnumber_t agno,
const struct xfs_inobt_rec_incore *irec,
void *data);
int xfs_inobt_walk(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_ino_t startino, unsigned int flags,
xfs_inobt_walk_fn inobt_walk_fn, unsigned int inobt_records,
void *data);
/* Only iterate inobt records within the same AG as @startino. */
#define XFS_INOBT_WALK_SAME_AG (XFS_IWALK_SAME_AG)
#define XFS_INOBT_WALK_FLAGS_ALL (XFS_INOBT_WALK_SAME_AG)
#endif /* __XFS_IWALK_H__ */
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