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/*
* pass4.c -- pass #4 of e2fsck: Check reference counts
*
* Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
* under the terms of the GNU Public License.
*
*/
#include "e2fsck.h"
void pass4(ext2_filsys fs)
{
ino_t i;
struct ext2_inode inode;
struct resource_track rtrack;
init_resource_track(&rtrack);
#ifdef MTRACE
mtrace_print("Pass 4");
#endif
if (!preen)
printf("Pass 4: Checking reference counts\n");
for (i=1; i <= fs->super->s_inodes_count; i++) {
if (i == EXT2_BAD_INO ||
(i > EXT2_ROOT_INO && i < EXT2_FIRST_INO))
continue;
if (!(ext2fs_test_inode_bitmap(inode_used_map, i)))
continue;
if (inode_count[i] == 0) {
/*
* Inode isn't attached to the filesystem;
* prompt to reconnect.
*/
printf("Unattached inode %lu\n", i);
preenhalt(fs);
if (ask("Connect to /lost+found", 1)) {
if (reconnect_file(fs, i))
ext2fs_unmark_valid(fs);
} else
ext2fs_unmark_valid(fs);
}
if (inode_count[i] != inode_link_info[i]) {
e2fsck_read_inode(fs, i, &inode, "pass4");
if (inode_link_info[i] != inode.i_links_count) {
printf("WARNING: PROGRAMMING BUG IN E2FSCK!\n");
printf("inode_link_info[%ld] is %u, "
"inode.i_links_count is %d. "
"They should be the same!\n",
i, inode_link_info[i],
inode.i_links_count);
}
printf("Inode %lu has ref count %d, expecting %d.\n",
i, inode.i_links_count, inode_count[i]);
if (ask("Set i_nlinks to count", 1)) {
inode.i_links_count = inode_count[i];
e2fsck_write_inode(fs, i, &inode, "pass4");
} else
ext2fs_unmark_valid(fs);
}
}
free(inode_link_info); inode_link_info = 0;
free(inode_count); inode_count = 0;
if (tflag > 1) {
printf("Pass 4: ");
print_resource_track(&rtrack);
}
}
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