/*
* This fuction deallocates an inode
*/
static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf)
{
ext2_filsys fs = ctx->fs;
struct ext2_inode inode;
struct problem_context pctx;
__u32 count;
e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode");
e2fsck_clear_inode(ctx, ino, &inode, 0, "deallocate_inode");
clear_problem_context(&pctx);
pctx.ino = ino;
/*
* Fix up the bitmaps...
*/
e2fsck_read_bitmaps(ctx);
ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode));
if (inode.i_file_acl &&
(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) {
pctx.errcode = ext2fs_adjust_ea_refcount(fs, inode.i_file_acl,
block_buf, -1, &count);
if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) {
pctx.errcode = 0;
count = 1;
}
if (pctx.errcode) {
pctx.blk = inode.i_file_acl;
fix_problem(ctx, PR_2_ADJ_EA_REFCOUNT, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
if (count == 0) {
ext2fs_unmark_block_bitmap(ctx->block_found_map,
inode.i_file_acl);
ext2fs_block_alloc_stats(fs, inode.i_file_acl, -1);
}
inode.i_file_acl = 0;
}
if (!ext2fs_inode_has_valid_blocks(&inode))
return;
if (LINUX_S_ISREG(inode.i_mode) &&
(inode.i_size_high || inode.i_size & 0x80000000UL))
ctx->large_files--;
pctx.errcode = ext2fs_block_iterate2(fs, ino, 0, block_buf,
deallocate_inode_block, ctx);
if (pctx.errcode) {
fix_problem(ctx, PR_2_DEALLOC_INODE, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
}
/*
* This fuction deallocates an inode
*/
static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf)
{
ext2_filsys fs = ctx->fs;
struct ext2_inode inode;
struct problem_context pctx;
ext2fs_icount_store(ctx->inode_link_info, ino, 0);
e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode");
inode.i_links_count = 0;
inode.i_dtime = time(0);
e2fsck_write_inode(ctx, ino, &inode, "deallocate_inode");
clear_problem_context(&pctx);
pctx.ino = ino;
/*
* Fix up the bitmaps...
*/
e2fsck_read_bitmaps(ctx);
ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
if (ctx->inode_bad_map)
ext2fs_unmark_inode_bitmap(ctx->inode_bad_map, ino);
ext2fs_unmark_inode_bitmap(fs->inode_map, ino);
ext2fs_mark_ib_dirty(fs);
if (!ext2fs_inode_has_valid_blocks(&inode))
return;
if (!LINUX_S_ISDIR(inode.i_mode) &&
(inode.i_size_high || inode.i_size & 0x80000000UL))
ctx->large_files--;
if (inode.i_file_acl) {
ext2fs_unmark_block_bitmap(ctx->block_found_map,
inode.i_file_acl);
ext2fs_unmark_block_bitmap(fs->block_map, inode.i_file_acl);
}
ext2fs_mark_bb_dirty(fs);
pctx.errcode = ext2fs_block_iterate2(fs, ino, 0, block_buf,
deallocate_inode_block, ctx);
if (pctx.errcode) {
fix_problem(ctx, PR_2_DEALLOC_INODE, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
}
errcode_t ext2fs_move_blocks(ext2_filsys fs,
ext2fs_block_bitmap reserve,
ext2fs_block_bitmap alloc_map,
int flags)
{
ext2_ino_t ino;
struct ext2_inode inode;
errcode_t retval;
struct process_block_struct pb;
ext2_inode_scan scan;
char *block_buf;
retval = ext2fs_open_inode_scan(fs, 0, &scan);
if (retval)
return retval;
pb.reserve = reserve;
pb.error = 0;
pb.alloc_map = alloc_map ? alloc_map : fs->block_map;
pb.flags = flags;
retval = ext2fs_get_array(4, fs->blocksize, &block_buf);
if (retval)
return retval;
pb.buf = block_buf + fs->blocksize * 3;
/*
* If GET_DBLIST is set in the flags field, then we should
* gather directory block information while we're doing the
* block move.
*/
if (flags & EXT2_BMOVE_GET_DBLIST) {
if (fs->dblist) {
ext2fs_free_dblist(fs->dblist);
fs->dblist = NULL;
}
retval = ext2fs_init_dblist(fs, 0);
if (retval)
return retval;
}
retval = ext2fs_get_next_inode(scan, &ino, &inode);
if (retval)
return retval;
while (ino) {
if ((inode.i_links_count == 0) ||
!ext2fs_inode_has_valid_blocks(&inode))
goto next;
pb.ino = ino;
pb.inode = &inode;
pb.add_dir = (LINUX_S_ISDIR(inode.i_mode) &&
flags & EXT2_BMOVE_GET_DBLIST);
retval = ext2fs_block_iterate2(fs, ino, 0, block_buf,
process_block, &pb);
if (retval)
return retval;
if (pb.error)
return pb.error;
next:
retval = ext2fs_get_next_inode(scan, &ino, &inode);
if (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE)
goto next;
}
return 0;
}
static void swap_inodes(e2fsck_t ctx)
{
ext2_filsys fs = ctx->fs;
dgrp_t group;
unsigned int i;
ext2_ino_t ino = 1;
char *buf = NULL, *block_buf = NULL;
errcode_t retval;
struct ext2_inode * inode;
e2fsck_use_inode_shortcuts(ctx, 1);
retval = ext2fs_get_array(fs->blocksize, fs->inode_blocks_per_group,
&buf);
if (retval) {
com_err("swap_inodes", retval,
_("while allocating inode buffer"));
ctx->flags |= E2F_FLAG_ABORT;
goto errout;
}
block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 4,
"block interate buffer");
for (group = 0; group < fs->group_desc_count; group++) {
retval = io_channel_read_blk(fs->io,
fs->group_desc[group].bg_inode_table,
fs->inode_blocks_per_group, buf);
if (retval) {
com_err("swap_inodes", retval,
_("while reading inode table (group %d)"),
group);
ctx->flags |= E2F_FLAG_ABORT;
goto errout;
}
inode = (struct ext2_inode *) buf;
for (i=0; i < fs->super->s_inodes_per_group;
i++, ino++, inode++) {
ctx->stashed_ino = ino;
ctx->stashed_inode = inode;
if (fs->flags & EXT2_FLAG_SWAP_BYTES_READ)
ext2fs_swap_inode(fs, inode, inode, 0);
/*
* Skip deleted files.
*/
if (inode->i_links_count == 0)
continue;
if (LINUX_S_ISDIR(inode->i_mode) ||
((inode->i_block[EXT2_IND_BLOCK] ||
inode->i_block[EXT2_DIND_BLOCK] ||
inode->i_block[EXT2_TIND_BLOCK]) &&
ext2fs_inode_has_valid_blocks(inode)))
swap_inode_blocks(ctx, ino, block_buf, inode);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
goto errout;
if (fs->flags & EXT2_FLAG_SWAP_BYTES_WRITE)
ext2fs_swap_inode(fs, inode, inode, 1);
}
retval = io_channel_write_blk(fs->io,
fs->group_desc[group].bg_inode_table,
fs->inode_blocks_per_group, buf);
if (retval) {
com_err("swap_inodes", retval,
_("while writing inode table (group %d)"),
group);
ctx->flags |= E2F_FLAG_ABORT;
goto errout;
}
}
errout:
if (buf)
ext2fs_free_mem(&buf);
if (block_buf)
ext2fs_free_mem(&block_buf);
e2fsck_use_inode_shortcuts(ctx, 0);
ext2fs_flush_icache(fs);
}
