]>
Commit | Line | Data |
---|---|---|
959ef981 | 1 | // SPDX-License-Identifier: GPL-2.0 |
2bd0ea18 | 2 | /* |
da23017d NS |
3 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
2bd0ea18 NS |
5 | */ |
6 | ||
6b803e5a | 7 | #include "libxfs.h" |
2bd0ea18 | 8 | #include "command.h" |
2bd0ea18 NS |
9 | #include "type.h" |
10 | #include "faddr.h" | |
11 | #include "fprint.h" | |
12 | #include "field.h" | |
13 | #include "io.h" | |
14 | #include "bit.h" | |
15 | #include "output.h" | |
4ca431fc | 16 | #include "init.h" |
28d8e155 | 17 | #include "agi.h" |
2bd0ea18 NS |
18 | |
19 | static int agi_f(int argc, char **argv); | |
20 | static void agi_help(void); | |
21 | ||
22 | static const cmdinfo_t agi_cmd = | |
9ee7055c AM |
23 | { "agi", NULL, agi_f, 0, 1, 1, N_("[agno]"), |
24 | N_("set address to agi header"), agi_help }; | |
2bd0ea18 NS |
25 | |
26 | const field_t agi_hfld[] = { | |
27 | { "", FLDT_AGI, OI(0), C1, 0, TYP_NONE }, | |
28 | { NULL } | |
29 | }; | |
30 | ||
31 | #define OFF(f) bitize(offsetof(xfs_agi_t, agi_ ## f)) | |
32 | const field_t agi_flds[] = { | |
33 | { "magicnum", FLDT_UINT32X, OI(OFF(magicnum)), C1, 0, TYP_NONE }, | |
34 | { "versionnum", FLDT_UINT32D, OI(OFF(versionnum)), C1, 0, TYP_NONE }, | |
35 | { "seqno", FLDT_AGNUMBER, OI(OFF(seqno)), C1, 0, TYP_NONE }, | |
36 | { "length", FLDT_AGBLOCK, OI(OFF(length)), C1, 0, TYP_NONE }, | |
37 | { "count", FLDT_AGINO, OI(OFF(count)), C1, 0, TYP_NONE }, | |
38 | { "root", FLDT_AGBLOCK, OI(OFF(root)), C1, 0, TYP_INOBT }, | |
39 | { "level", FLDT_UINT32D, OI(OFF(level)), C1, 0, TYP_NONE }, | |
40 | { "freecount", FLDT_AGINO, OI(OFF(freecount)), C1, 0, TYP_NONE }, | |
41 | { "newino", FLDT_AGINO, OI(OFF(newino)), C1, 0, TYP_INODE }, | |
42 | { "dirino", FLDT_AGINO, OI(OFF(dirino)), C1, 0, TYP_INODE }, | |
43 | { "unlinked", FLDT_AGINONN, OI(OFF(unlinked)), | |
44 | CI(XFS_AGI_UNLINKED_BUCKETS), FLD_ARRAY, TYP_NONE }, | |
c2907bd7 | 45 | { "uuid", FLDT_UUID, OI(OFF(uuid)), C1, 0, TYP_NONE }, |
0522f1cc | 46 | { "crc", FLDT_CRC, OI(OFF(crc)), C1, 0, TYP_NONE }, |
70c1cceb DW |
47 | { "pad32", FLDT_UINT32X, OI(OFF(pad32)), C1, FLD_SKIPALL, TYP_NONE }, |
48 | { "lsn", FLDT_UINT64X, OI(OFF(lsn)), C1, 0, TYP_NONE }, | |
61a15567 | 49 | { "free_root", FLDT_AGBLOCK, OI(OFF(free_root)), C1, 0, TYP_FINOBT }, |
2a0cd7ad | 50 | { "free_level", FLDT_UINT32D, OI(OFF(free_level)), C1, 0, TYP_NONE }, |
2bd0ea18 NS |
51 | { NULL } |
52 | }; | |
53 | ||
54 | static void | |
55 | agi_help(void) | |
56 | { | |
9ee7055c | 57 | dbprintf(_( |
2bd0ea18 NS |
58 | "\n" |
59 | " set allocation group inode btree\n" | |
60 | "\n" | |
61 | " Example:\n" | |
62 | "\n" | |
63 | " agi 3 (set location to 3rd allocation group inode btree and type to 'agi')\n" | |
64 | "\n" | |
65 | " Located in the 3rd 512 byte block of each allocation group,\n" | |
66 | " the agi inode btree tracks all used/free inodes in the allocation group.\n" | |
67 | " Inodes are allocated in 16k 'chunks', each btree entry tracks a 'chunk'.\n" | |
68 | "\n" | |
9ee7055c | 69 | )); |
2bd0ea18 NS |
70 | } |
71 | ||
72 | static int | |
73 | agi_f( | |
74 | int argc, | |
75 | char **argv) | |
76 | { | |
77 | xfs_agnumber_t agno; | |
78 | char *p; | |
79 | ||
80 | if (argc > 1) { | |
81 | agno = (xfs_agnumber_t)strtoul(argv[1], &p, 0); | |
82 | if (*p != '\0' || agno >= mp->m_sb.sb_agcount) { | |
9ee7055c | 83 | dbprintf(_("bad allocation group number %s\n"), argv[1]); |
2bd0ea18 NS |
84 | return 0; |
85 | } | |
86 | cur_agno = agno; | |
87 | } else if (cur_agno == NULLAGNUMBER) | |
88 | cur_agno = 0; | |
89 | ASSERT(typtab[TYP_AGI].typnm == TYP_AGI); | |
9440d84d NS |
90 | set_cur(&typtab[TYP_AGI], |
91 | XFS_AG_DADDR(mp, cur_agno, XFS_AGI_DADDR(mp)), | |
92 | XFS_FSS_TO_BB(mp, 1), DB_RING_ADD, NULL); | |
2bd0ea18 NS |
93 | return 0; |
94 | } | |
95 | ||
96 | void | |
97 | agi_init(void) | |
98 | { | |
99 | add_command(&agi_cmd); | |
100 | } | |
101 | ||
102 | /*ARGSUSED*/ | |
103 | int | |
104 | agi_size( | |
105 | void *obj, | |
106 | int startoff, | |
107 | int idx) | |
108 | { | |
109 | return bitize(mp->m_sb.sb_sectsize); | |
110 | } |