Line data    Source code

       1             : /* SPDX-License-Identifier: GPL-2.0-or-later */
       2             : /*
       3             :  * Copyright (C) 2020-2023 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             : 
       9             : struct 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     hooks;
      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             : 
      27             : int __xrep_findparent_scan_start(struct xfs_scrub *sc,
      28             :                 struct xrep_parent_scan_info *pscan,
      29             :                 notifier_fn_t custom_fn);
      30             : static inline int xrep_findparent_scan_start(struct xfs_scrub *sc,
      31             :                 struct xrep_parent_scan_info *pscan)
      32             : {
      33       44323 :         return __xrep_findparent_scan_start(sc, pscan, NULL);
      34             : }
      35             : int xrep_findparent_scan(struct xrep_parent_scan_info *pscan);
      36             : void xrep_findparent_scan_teardown(struct xrep_parent_scan_info *pscan);
      37             : 
      38             : static inline void
      39             : xrep_findparent_scan_found(
      40             :         struct xrep_parent_scan_info    *pscan,
      41             :         xfs_ino_t                       ino)
      42             : {
      43     2379241 :         mutex_lock(&pscan->lock);
      44     2379970 :         pscan->parent_ino = ino;
      45     2379970 :         mutex_unlock(&pscan->lock);
      46     2146879 : }
      47             : 
      48             : void xrep_findparent_scan_finish_early(struct xrep_parent_scan_info *pscan,
      49             :                 xfs_ino_t ino);
      50             : 
      51             : int xrep_findparent_confirm(struct xfs_scrub *sc, xfs_ino_t *parent_ino);
      52             : 
      53             : xfs_ino_t xrep_findparent_self_reference(struct xfs_scrub *sc);
      54             : xfs_ino_t xrep_findparent_from_dcache(struct xfs_scrub *sc);
      55             : 
      56             : int xrep_findparent_from_pptrs(struct xfs_scrub *sc, xfs_ino_t *inop);
      57             : 
      58             : #endif /* __XFS_SCRUB_FINDPARENT_H__ */