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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Copyright (c) 2020-2024 Oracle. All Rights Reserved.4 * Author: Darrick J. Wong <djwong@kernel.org>5 */6#ifndef __XFS_SCRUB_FINDPARENT_H__7#define __XFS_SCRUB_FINDPARENT_H__8 9struct xrep_parent_scan_info {10 struct xfs_scrub *sc;11 12 /* Inode scan cursor. */13 struct xchk_iscan iscan;14 15 /* Hook to capture directory entry updates. */16 struct xfs_dir_hook dhook;17 18 /* Lock protecting parent_ino. */19 struct mutex lock;20 21 /* Parent inode that we've found. */22 xfs_ino_t parent_ino;23 24 bool lookup_parent;25};26 27int __xrep_findparent_scan_start(struct xfs_scrub *sc,28 struct xrep_parent_scan_info *pscan,29 notifier_fn_t custom_fn);30static inline int xrep_findparent_scan_start(struct xfs_scrub *sc,31 struct xrep_parent_scan_info *pscan)32{33 return __xrep_findparent_scan_start(sc, pscan, NULL);34}35int xrep_findparent_scan(struct xrep_parent_scan_info *pscan);36void xrep_findparent_scan_teardown(struct xrep_parent_scan_info *pscan);37 38static inline void39xrep_findparent_scan_found(40 struct xrep_parent_scan_info *pscan,41 xfs_ino_t ino)42{43 mutex_lock(&pscan->lock);44 pscan->parent_ino = ino;45 mutex_unlock(&pscan->lock);46}47 48void xrep_findparent_scan_finish_early(struct xrep_parent_scan_info *pscan,49 xfs_ino_t ino);50 51int xrep_findparent_confirm(struct xfs_scrub *sc, xfs_ino_t *parent_ino);52 53xfs_ino_t xrep_findparent_self_reference(struct xfs_scrub *sc);54xfs_ino_t xrep_findparent_from_dcache(struct xfs_scrub *sc);55 56#endif /* __XFS_SCRUB_FINDPARENT_H__ */57