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76797561 DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
6 | ||
577b7874 | 7 | #ifndef lint |
76797561 DF |
8 | static char sccsid[] = "@(#)pass4.c 5.1 (Berkeley) %G%"; |
9 | #endif not lint | |
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10 | |
11 | #include <sys/param.h> | |
12 | #include <sys/inode.h> | |
13 | #include <sys/fs.h> | |
14 | #include "fsck.h" | |
15 | ||
16 | int pass4check(); | |
17 | ||
18 | pass4() | |
19 | { | |
82dc9a9e KM |
20 | register ino_t inumber; |
21 | register struct zlncnt *zlnp; | |
577b7874 | 22 | struct inodesc idesc; |
82dc9a9e | 23 | int n; |
577b7874 KM |
24 | |
25 | bzero((char *)&idesc, sizeof(struct inodesc)); | |
26 | idesc.id_type = ADDR; | |
27 | idesc.id_func = pass4check; | |
28 | for (inumber = ROOTINO; inumber <= lastino; inumber++) { | |
29 | idesc.id_number = inumber; | |
30 | switch (statemap[inumber]) { | |
31 | ||
32 | case FSTATE: | |
993a756c | 33 | case DFOUND: |
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34 | n = lncntp[inumber]; |
35 | if (n) | |
36 | adjust(&idesc, (short)n); | |
37 | else { | |
82dc9a9e KM |
38 | for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) |
39 | if (zlnp->zlncnt == inumber) { | |
577b7874 KM |
40 | clri(&idesc, "UNREF", 1); |
41 | break; | |
42 | } | |
43 | } | |
44 | break; | |
45 | ||
46 | case DSTATE: | |
47 | clri(&idesc, "UNREF", 1); | |
48 | break; | |
49 | ||
993a756c KM |
50 | case DCLEAR: |
51 | case FCLEAR: | |
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52 | clri(&idesc, "BAD/DUP", 1); |
53 | break; | |
54 | } | |
55 | } | |
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56 | } |
57 | ||
58 | pass4check(idesc) | |
59 | register struct inodesc *idesc; | |
60 | { | |
62e6c152 | 61 | register struct dups *dlp; |
577b7874 KM |
62 | int nfrags, res = KEEPON; |
63 | daddr_t blkno = idesc->id_blkno; | |
64 | ||
65 | for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) { | |
62e6c152 | 66 | if (outrange(blkno, 1)) { |
577b7874 | 67 | res = SKIP; |
62e6c152 KM |
68 | } else if (getbmap(blkno)) { |
69 | for (dlp = duplist; dlp; dlp = dlp->next) { | |
70 | if (dlp->dup != blkno) | |
71 | continue; | |
72 | dlp->dup = duplist->dup; | |
73 | dlp = duplist; | |
74 | duplist = duplist->next; | |
82dc9a9e | 75 | /* free(dlp); */ |
62e6c152 KM |
76 | break; |
77 | } | |
78 | if (dlp == 0) { | |
79 | clrbmap(blkno); | |
80 | n_blks--; | |
81 | } | |
577b7874 KM |
82 | } |
83 | } | |
84 | return (res); | |
85 | } |