Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * pass4.c -- pass #4 of e2fsck: Check reference counts |
| 3 | * |
| 4 | * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed |
| 5 | * under the terms of the GNU Public License. |
| 6 | * |
| 7 | */ |
| 8 | |
| 9 | #include "e2fsck.h" |
| 10 | |
| 11 | void pass4(ext2_filsys fs) |
| 12 | { |
| 13 | int i; |
| 14 | struct ext2_inode inode; |
| 15 | struct resource_track rtrack; |
| 16 | |
| 17 | init_resource_track(&rtrack); |
| 18 | |
| 19 | #ifdef MTRACE |
| 20 | mtrace_print("Pass 4"); |
| 21 | #endif |
| 22 | |
| 23 | if (!preen) |
| 24 | printf("Pass 4: Check reference counts.\n"); |
| 25 | for (i=1; i <= fs->super->s_inodes_count; i++) { |
| 26 | if (i == EXT2_BAD_INO || |
| 27 | (i > EXT2_ROOT_INO && i < EXT2_FIRST_INO)) |
| 28 | continue; |
| 29 | if (!(ext2fs_test_inode_bitmap(fs, inode_used_map, i))) |
| 30 | continue; |
| 31 | if (inode_count[i] == 0) { |
| 32 | /* |
| 33 | * Inode isn't attached to the filesystem; |
| 34 | * prompt to reconnect. |
| 35 | */ |
| 36 | printf("Unattached inode %d\n", i); |
| 37 | preenhalt(); |
| 38 | if (ask("Connect to /lost+found", 1)) { |
| 39 | if (reconnect_file(fs, i)) |
| 40 | ext2fs_unmark_valid(fs); |
| 41 | } else |
| 42 | ext2fs_unmark_valid(fs); |
| 43 | } |
| 44 | if (inode_count[i] != inode_link_info[i]) { |
| 45 | ext2fs_read_inode(fs, i, &inode); |
| 46 | if (inode_link_info[i] != inode.i_links_count) { |
| 47 | printf("WARNING: PROGRAMMING BUG IN E2FSCK!\n"); |
| 48 | printf("inode_link_info[%d] is %d, " |
| 49 | "inode.i_links_count is %d. " |
| 50 | "They should be the same!\n", |
| 51 | i, inode_link_info[i], |
| 52 | inode.i_links_count); |
| 53 | } |
| 54 | printf("Inode %d has ref count %d, expecting %d.\n", |
| 55 | i, inode.i_links_count, inode_count[i]); |
| 56 | if (ask("Set i_nlinks to count", 1)) { |
| 57 | inode.i_links_count = inode_count[i]; |
| 58 | ext2fs_write_inode(fs, i, &inode); |
| 59 | } else |
| 60 | ext2fs_unmark_valid(fs); |
| 61 | } |
| 62 | } |
| 63 | free(inode_link_info); inode_link_info = 0; |
| 64 | free(inode_count); inode_count = 0; |
| 65 | if (tflag > 1) { |
| 66 | printf("Pass 4: "); |
| 67 | print_resource_track(&rtrack); |
| 68 | } |
| 69 | } |
| 70 | |