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e758ad01 DW |
1 | /* |
2 | * Copyright (C) 2018 Oracle. All Rights Reserved. | |
3 | * | |
4 | * Author: Darrick J. Wong <darrick.wong@oracle.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it would be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write the Free Software Foundation, | |
18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. | |
19 | */ | |
20 | #include <stdio.h> | |
21 | #include <stdint.h> | |
22 | #include <stdbool.h> | |
23 | #include <sys/types.h> | |
24 | #include <sys/stat.h> | |
25 | #include <sys/statvfs.h> | |
26 | #include "xfs.h" | |
19852474 | 27 | #include "list.h" |
e758ad01 DW |
28 | #include "path.h" |
29 | #include "workqueue.h" | |
30 | #include "xfs_scrub.h" | |
31 | #include "common.h" | |
32 | #include "scrub.h" | |
33 | ||
34 | /* Phase 2: Check internal metadata. */ | |
35 | ||
36 | /* Scrub each AG's metadata btrees. */ | |
37 | static void | |
38 | xfs_scan_ag_metadata( | |
39 | struct workqueue *wq, | |
40 | xfs_agnumber_t agno, | |
41 | void *arg) | |
42 | { | |
43 | struct scrub_ctx *ctx = (struct scrub_ctx *)wq->wq_ctx; | |
44 | bool *pmoveon = arg; | |
45 | bool moveon; | |
46 | char descr[DESCR_BUFSZ]; | |
47 | ||
48 | snprintf(descr, DESCR_BUFSZ, _("AG %u"), agno); | |
49 | ||
50 | /* | |
51 | * First we scrub and fix the AG headers, because we need | |
52 | * them to work well enough to check the AG btrees. | |
53 | */ | |
54 | moveon = xfs_scrub_ag_headers(ctx, agno); | |
55 | if (!moveon) | |
56 | goto err; | |
57 | ||
58 | /* Now scrub the AG btrees. */ | |
59 | moveon = xfs_scrub_ag_metadata(ctx, agno); | |
60 | if (!moveon) | |
61 | goto err; | |
62 | ||
63 | return; | |
64 | err: | |
65 | *pmoveon = false; | |
66 | } | |
67 | ||
68 | /* Scrub whole-FS metadata btrees. */ | |
69 | static void | |
70 | xfs_scan_fs_metadata( | |
71 | struct workqueue *wq, | |
72 | xfs_agnumber_t agno, | |
73 | void *arg) | |
74 | { | |
75 | struct scrub_ctx *ctx = (struct scrub_ctx *)wq->wq_ctx; | |
76 | bool *pmoveon = arg; | |
77 | bool moveon; | |
78 | ||
79 | moveon = xfs_scrub_fs_metadata(ctx); | |
80 | if (!moveon) | |
81 | *pmoveon = false; | |
82 | } | |
83 | ||
84 | /* Scan all filesystem metadata. */ | |
85 | bool | |
86 | xfs_scan_metadata( | |
87 | struct scrub_ctx *ctx) | |
88 | { | |
89 | struct workqueue wq; | |
90 | xfs_agnumber_t agno; | |
91 | bool moveon = true; | |
92 | int ret; | |
93 | ||
94 | ret = workqueue_create(&wq, (struct xfs_mount *)ctx, | |
95 | scrub_nproc_workqueue(ctx)); | |
96 | if (ret) { | |
82377bde | 97 | str_info(ctx, ctx->mntpoint, _("Could not create workqueue.")); |
e758ad01 DW |
98 | return false; |
99 | } | |
100 | ||
101 | /* | |
102 | * In case we ever use the primary super scrubber to perform fs | |
103 | * upgrades (followed by a full scrub), do that before we launch | |
104 | * anything else. | |
105 | */ | |
106 | moveon = xfs_scrub_primary_super(ctx); | |
107 | if (!moveon) | |
108 | return moveon; | |
109 | ||
110 | for (agno = 0; moveon && agno < ctx->geo.agcount; agno++) { | |
111 | ret = workqueue_add(&wq, xfs_scan_ag_metadata, agno, &moveon); | |
112 | if (ret) { | |
113 | moveon = false; | |
82377bde | 114 | str_info(ctx, ctx->mntpoint, |
e758ad01 DW |
115 | _("Could not queue AG %u scrub work."), agno); |
116 | goto out; | |
117 | } | |
118 | } | |
119 | ||
120 | if (!moveon) | |
121 | goto out; | |
122 | ||
123 | ret = workqueue_add(&wq, xfs_scan_fs_metadata, 0, &moveon); | |
124 | if (ret) { | |
125 | moveon = false; | |
82377bde | 126 | str_info(ctx, ctx->mntpoint, |
e758ad01 DW |
127 | _("Could not queue filesystem scrub work.")); |
128 | goto out; | |
129 | } | |
130 | ||
131 | out: | |
132 | workqueue_destroy(&wq); | |
133 | return moveon; | |
134 | } | |
ed60d210 DW |
135 | |
136 | /* Estimate how much work we're going to do. */ | |
137 | bool | |
138 | xfs_estimate_metadata_work( | |
139 | struct scrub_ctx *ctx, | |
140 | uint64_t *items, | |
141 | unsigned int *nr_threads, | |
142 | int *rshift) | |
143 | { | |
144 | *items = xfs_scrub_estimate_ag_work(ctx); | |
145 | *nr_threads = scrub_nproc(ctx); | |
146 | *rshift = 0; | |
147 | return true; | |
148 | } |