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8d318d62 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
604dd334 | 2 | /* |
52520522 | 3 | * Copyright (C) 2018-2024 Oracle. All Rights Reserved. |
8d318d62 | 4 | * Author: Darrick J. Wong <djwong@kernel.org> |
604dd334 | 5 | */ |
a440f877 | 6 | #include "xfs.h" |
604dd334 DW |
7 | #include <stdint.h> |
8 | #include <stdlib.h> | |
9 | #include <sys/statvfs.h> | |
10 | #include "platform_defs.h" | |
604dd334 | 11 | #include "xfs_arch.h" |
42b4c8e8 | 12 | #include "libfrog/paths.h" |
56598728 | 13 | #include "libfrog/workqueue.h" |
604dd334 DW |
14 | #include "xfs_scrub.h" |
15 | #include "common.h" | |
16 | #include "fscounters.h" | |
621f3374 | 17 | #include "libfrog/bulkstat.h" |
604dd334 DW |
18 | |
19 | /* | |
20 | * Filesystem counter collection routines. We can count the number of | |
21 | * inodes in the filesystem, and we can estimate the block counters. | |
22 | */ | |
23 | ||
24 | /* Count the number of inodes in the filesystem. */ | |
25 | ||
26 | /* INUMBERS wrapper routines. */ | |
934d8d3a DW |
27 | struct count_inodes { |
28 | int error; | |
604dd334 DW |
29 | uint64_t counters[0]; |
30 | }; | |
31 | ||
32 | /* | |
33 | * Count the number of inodes. Use INUMBERS to figure out how many inodes | |
34 | * exist in the filesystem, assuming we've already scrubbed that. | |
35 | */ | |
934d8d3a DW |
36 | static void |
37 | count_ag_inodes( | |
38 | struct workqueue *wq, | |
39 | xfs_agnumber_t agno, | |
40 | void *arg) | |
604dd334 | 41 | { |
934d8d3a DW |
42 | struct count_inodes *ci = arg; |
43 | struct scrub_ctx *ctx = (struct scrub_ctx *)wq->wq_ctx; | |
b94a69ac | 44 | struct xfs_inumbers_req *ireq; |
604dd334 | 45 | uint64_t nr = 0; |
6040b5d5 | 46 | unsigned int i; |
604dd334 DW |
47 | int error; |
48 | ||
e6542132 DW |
49 | error = -xfrog_inumbers_alloc_req(64, 0, &ireq); |
50 | if (error) { | |
51 | ci->error = error; | |
934d8d3a | 52 | return; |
b94a69ac | 53 | } |
23ea9841 | 54 | xfrog_inumbers_set_ag(ireq, agno); |
b94a69ac | 55 | |
e6542132 | 56 | while (!ci->error && (error = -xfrog_inumbers(&ctx->mnt, ireq)) == 0) { |
23ea9841 | 57 | if (ireq->hdr.ocount == 0) |
621f3374 | 58 | break; |
6040b5d5 DW |
59 | for (i = 0; i < ireq->hdr.ocount; i++) |
60 | nr += ireq->inumbers[i].xi_alloccount; | |
604dd334 | 61 | } |
934d8d3a DW |
62 | if (error) |
63 | ci->error = error; | |
604dd334 | 64 | |
b94a69ac DW |
65 | free(ireq); |
66 | ||
934d8d3a | 67 | ci->counters[agno] = nr; |
604dd334 DW |
68 | } |
69 | ||
934d8d3a DW |
70 | /* |
71 | * Count all the inodes in a filesystem. Returns 0 or a positive error number. | |
72 | */ | |
73 | int | |
74 | scrub_count_all_inodes( | |
604dd334 DW |
75 | struct scrub_ctx *ctx, |
76 | uint64_t *count) | |
77 | { | |
934d8d3a | 78 | struct count_inodes *ci; |
604dd334 DW |
79 | xfs_agnumber_t agno; |
80 | struct workqueue wq; | |
934d8d3a | 81 | int ret, ret2; |
604dd334 | 82 | |
934d8d3a | 83 | ci = calloc(1, sizeof(struct count_inodes) + |
3f9efb2e | 84 | (ctx->mnt.fsgeom.agcount * sizeof(uint64_t))); |
604dd334 | 85 | if (!ci) |
934d8d3a | 86 | return errno; |
604dd334 | 87 | |
baed134d | 88 | ret = -workqueue_create(&wq, (struct xfs_mount *)ctx, |
604dd334 | 89 | scrub_nproc_workqueue(ctx)); |
934d8d3a | 90 | if (ret) |
604dd334 | 91 | goto out_free; |
934d8d3a DW |
92 | |
93 | for (agno = 0; agno < ctx->mnt.fsgeom.agcount && !ci->error; agno++) { | |
baed134d | 94 | ret = -workqueue_add(&wq, count_ag_inodes, agno, ci); |
934d8d3a | 95 | if (ret) |
604dd334 | 96 | break; |
604dd334 | 97 | } |
71296cf8 | 98 | |
baed134d | 99 | ret2 = -workqueue_terminate(&wq); |
934d8d3a DW |
100 | if (!ret && ret2) |
101 | ret = ret2; | |
604dd334 DW |
102 | workqueue_destroy(&wq); |
103 | ||
934d8d3a DW |
104 | if (ci->error) { |
105 | ret = ci->error; | |
71296cf8 | 106 | goto out_free; |
934d8d3a | 107 | } |
71296cf8 | 108 | |
3f9efb2e | 109 | for (agno = 0; agno < ctx->mnt.fsgeom.agcount; agno++) |
604dd334 | 110 | *count += ci->counters[agno]; |
604dd334 DW |
111 | |
112 | out_free: | |
113 | free(ci); | |
934d8d3a | 114 | return ret; |
604dd334 DW |
115 | } |
116 | ||
934d8d3a | 117 | /* |
0b78ac05 | 118 | * Estimate the number of blocks and used inodes in the filesystem. Returns 0 |
934d8d3a DW |
119 | * or a positive error number. |
120 | */ | |
121 | int | |
122 | scrub_scan_estimate_blocks( | |
604dd334 DW |
123 | struct scrub_ctx *ctx, |
124 | unsigned long long *d_blocks, | |
125 | unsigned long long *d_bfree, | |
126 | unsigned long long *r_blocks, | |
127 | unsigned long long *r_bfree, | |
0b78ac05 | 128 | unsigned long long *f_files_used) |
604dd334 DW |
129 | { |
130 | struct xfs_fsop_counts fc; | |
604dd334 DW |
131 | int error; |
132 | ||
604dd334 | 133 | /* Fetch the filesystem counters. */ |
3f9efb2e | 134 | error = ioctl(ctx->mnt.fd, XFS_IOC_FSCOUNTS, &fc); |
934d8d3a DW |
135 | if (error) |
136 | return errno; | |
604dd334 | 137 | |
2b9857cd DW |
138 | *d_blocks = ctx->mnt.fsgeom.datablocks; |
139 | *d_bfree = fc.freedata; | |
3f9efb2e | 140 | *r_blocks = ctx->mnt.fsgeom.rtblocks; |
085fce0b | 141 | *r_bfree = fc.freertx * ctx->mnt.fsgeom.rtextsize; |
0b78ac05 | 142 | *f_files_used = fc.allocino - fc.freeino; |
604dd334 | 143 | |
934d8d3a | 144 | return 0; |
604dd334 | 145 | } |