| 1 | #ifndef lint |
| 2 | static char version[] = "@(#)pass4.c 3.4 (Berkeley) %G%"; |
| 3 | #endif |
| 4 | |
| 5 | #include <sys/param.h> |
| 6 | #include <sys/inode.h> |
| 7 | #include <sys/fs.h> |
| 8 | #include "fsck.h" |
| 9 | |
| 10 | int pass4check(); |
| 11 | |
| 12 | pass4() |
| 13 | { |
| 14 | register ino_t inumber; |
| 15 | register struct zlncnt *zlnp; |
| 16 | struct inodesc idesc; |
| 17 | int n; |
| 18 | |
| 19 | bzero((char *)&idesc, sizeof(struct inodesc)); |
| 20 | idesc.id_type = ADDR; |
| 21 | idesc.id_func = pass4check; |
| 22 | for (inumber = ROOTINO; inumber <= lastino; inumber++) { |
| 23 | idesc.id_number = inumber; |
| 24 | switch (statemap[inumber]) { |
| 25 | |
| 26 | case FSTATE: |
| 27 | case DFOUND: |
| 28 | n = lncntp[inumber]; |
| 29 | if (n) |
| 30 | adjust(&idesc, (short)n); |
| 31 | else { |
| 32 | for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) |
| 33 | if (zlnp->zlncnt == inumber) { |
| 34 | clri(&idesc, "UNREF", 1); |
| 35 | break; |
| 36 | } |
| 37 | } |
| 38 | break; |
| 39 | |
| 40 | case DSTATE: |
| 41 | clri(&idesc, "UNREF", 1); |
| 42 | break; |
| 43 | |
| 44 | case DCLEAR: |
| 45 | case FCLEAR: |
| 46 | clri(&idesc, "BAD/DUP", 1); |
| 47 | break; |
| 48 | } |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | pass4check(idesc) |
| 53 | register struct inodesc *idesc; |
| 54 | { |
| 55 | register struct dups *dlp; |
| 56 | int nfrags, res = KEEPON; |
| 57 | daddr_t blkno = idesc->id_blkno; |
| 58 | |
| 59 | for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) { |
| 60 | if (outrange(blkno, 1)) { |
| 61 | res = SKIP; |
| 62 | } else if (getbmap(blkno)) { |
| 63 | for (dlp = duplist; dlp; dlp = dlp->next) { |
| 64 | if (dlp->dup != blkno) |
| 65 | continue; |
| 66 | dlp->dup = duplist->dup; |
| 67 | dlp = duplist; |
| 68 | duplist = duplist->next; |
| 69 | /* free(dlp); */ |
| 70 | break; |
| 71 | } |
| 72 | if (dlp == 0) { |
| 73 | clrbmap(blkno); |
| 74 | n_blks--; |
| 75 | } |
| 76 | } |
| 77 | } |
| 78 | return (res); |
| 79 | } |