blob: 7c7a2e7d81dbdee567d710d38ffcca858424c755 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2021-2024 Oracle. All Rights Reserved.
* Author: Darrick J. Wong <djwong@kernel.org>
*/
#ifndef __XFS_SCRUB_ORPHANAGE_H__
#define __XFS_SCRUB_ORPHANAGE_H__
#ifdef CONFIG_XFS_ONLINE_REPAIR
int xrep_orphanage_create(struct xfs_scrub *sc);
/*
* If we're doing a repair, ensure that the orphanage exists and attach it to
* the scrub context.
*/
static inline int
xrep_orphanage_try_create(
struct xfs_scrub *sc)
{
int error;
ASSERT(sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR);
error = xrep_orphanage_create(sc);
switch (error) {
case 0:
case -ENOENT:
case -ENOTDIR:
case -ENOSPC:
/*
* If the orphanage can't be found or isn't a directory, we'll
* keep going, but we won't be able to attach the file to the
* orphanage if we can't find the parent.
*/
return 0;
}
return error;
}
int xrep_orphanage_iolock_two(struct xfs_scrub *sc);
void xrep_orphanage_ilock(struct xfs_scrub *sc, unsigned int ilock_flags);
bool xrep_orphanage_ilock_nowait(struct xfs_scrub *sc,
unsigned int ilock_flags);
void xrep_orphanage_iunlock(struct xfs_scrub *sc, unsigned int ilock_flags);
void xrep_orphanage_rele(struct xfs_scrub *sc);
/* Information about a request to add a file to the orphanage. */
struct xrep_adoption {
struct xfs_scrub *sc;
/* Name used for the adoption. */
struct xfs_name *xname;
/* Parent pointer context tracking */
struct xfs_parent_args ppargs;
/* Block reservations for orphanage and child (if directory). */
unsigned int orphanage_blkres;
unsigned int child_blkres;
/*
* Does the caller want us to bump the child link count? This is not
* needed when reattaching files that have become disconnected but have
* nlink > 1. It is necessary when changing the directory tree
* structure.
*/
bool bump_child_nlink:1;
};
bool xrep_orphanage_can_adopt(struct xfs_scrub *sc);
int xrep_adoption_trans_alloc(struct xfs_scrub *sc,
struct xrep_adoption *adopt);
int xrep_adoption_compute_name(struct xrep_adoption *adopt,
struct xfs_name *xname);
int xrep_adoption_move(struct xrep_adoption *adopt);
int xrep_adoption_trans_roll(struct xrep_adoption *adopt);
#else
struct xrep_adoption { /* empty */ };
# define xrep_orphanage_rele(sc) ((void)0)
#endif /* CONFIG_XFS_ONLINE_REPAIR */
#endif /* __XFS_SCRUB_ORPHANAGE_H__ */
|
