diff options
Diffstat (limited to 'fs/xfs/scrub/findparent.h')
| -rw-r--r-- | fs/xfs/scrub/findparent.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/fs/xfs/scrub/findparent.h b/fs/xfs/scrub/findparent.h new file mode 100644 index 0000000000..d998c7a881 --- /dev/null +++ b/fs/xfs/scrub/findparent.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2020-2024 Oracle. All Rights Reserved. + * Author: Darrick J. Wong <djwong@kernel.org> + */ +#ifndef __XFS_SCRUB_FINDPARENT_H__ +#define __XFS_SCRUB_FINDPARENT_H__ + +struct xrep_parent_scan_info { + struct xfs_scrub *sc; + + /* Inode scan cursor. */ + struct xchk_iscan iscan; + + /* Hook to capture directory entry updates. */ + struct xfs_dir_hook dhook; + + /* Lock protecting parent_ino. */ + struct mutex lock; + + /* Parent inode that we've found. */ + xfs_ino_t parent_ino; + + bool lookup_parent; +}; + +int __xrep_findparent_scan_start(struct xfs_scrub *sc, + struct xrep_parent_scan_info *pscan, + notifier_fn_t custom_fn); +static inline int xrep_findparent_scan_start(struct xfs_scrub *sc, + struct xrep_parent_scan_info *pscan) +{ + return __xrep_findparent_scan_start(sc, pscan, NULL); +} +int xrep_findparent_scan(struct xrep_parent_scan_info *pscan); +void xrep_findparent_scan_teardown(struct xrep_parent_scan_info *pscan); + +static inline void +xrep_findparent_scan_found( + struct xrep_parent_scan_info *pscan, + xfs_ino_t ino) +{ + mutex_lock(&pscan->lock); + pscan->parent_ino = ino; + mutex_unlock(&pscan->lock); +} + +void xrep_findparent_scan_finish_early(struct xrep_parent_scan_info *pscan, + xfs_ino_t ino); + +int xrep_findparent_confirm(struct xfs_scrub *sc, xfs_ino_t *parent_ino); + +xfs_ino_t xrep_findparent_self_reference(struct xfs_scrub *sc); +xfs_ino_t xrep_findparent_from_dcache(struct xfs_scrub *sc); + +#endif /* __XFS_SCRUB_FINDPARENT_H__ */ |