/*
* expand.c --- expand an ext2fs directory
*
- * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999 Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
#include <stdio.h>
#include <string.h>
+#if HAVE_UNISTD_H
#include <unistd.h>
-#include <stdlib.h>
-#if HAVE_ERRNO_H
-#include <errno.h>
#endif
-#include <linux/ext2_fs.h>
-
+#include "ext2_fs.h"
#include "ext2fs.h"
struct expand_dir_struct {
- int done;
+ int done;
+ int newblocks;
errcode_t err;
};
-static int expand_dir_proc(ext2_filsys fs,
+static int expand_dir_proc(ext2_filsys fs,
blk_t *blocknr,
- int blockcnt,
- void *private)
+ e2_blkcnt_t blockcnt,
+ blk_t ref_block EXT2FS_ATTR((unused)),
+ int ref_offset EXT2FS_ATTR((unused)),
+ void *priv_data)
{
- struct expand_dir_struct *es = (struct expand_dir_struct *) private;
+ struct expand_dir_struct *es = (struct expand_dir_struct *) priv_data;
blk_t new_blk;
static blk_t last_blk = 0;
char *block;
errcode_t retval;
- int group;
if (*blocknr) {
last_blk = *blocknr;
return BLOCK_ABORT;
}
es->done = 1;
+ retval = ext2fs_write_dir_block(fs, new_blk, block);
} else {
- block = malloc(fs->blocksize);
- if (!block) {
- es->err = ENOMEM;
+ retval = ext2fs_get_mem(fs->blocksize, &block);
+ if (retval) {
+ es->err = retval;
return BLOCK_ABORT;
}
memset(block, 0, fs->blocksize);
+ retval = io_channel_write_blk(fs->io, new_blk, 1, block);
}
- retval = ext2fs_write_dir_block(fs, new_blk, block);
if (retval) {
es->err = retval;
return BLOCK_ABORT;
}
- free(block);
+ ext2fs_free_mem(&block);
*blocknr = new_blk;
- ext2fs_mark_block_bitmap(fs->block_map, new_blk);
- ext2fs_mark_bb_dirty(fs);
- group = ext2fs_group_of_blk(fs, new_blk);
- fs->group_desc[group].bg_free_blocks_count--;
- fs->super->s_free_blocks_count--;
- ext2fs_mark_super_dirty(fs);
+ ext2fs_block_alloc_stats(fs, new_blk, +1);
+ es->newblocks++;
+
if (es->done)
return (BLOCK_CHANGED | BLOCK_ABORT);
else
return BLOCK_CHANGED;
}
-errcode_t ext2fs_expand_dir(ext2_filsys fs, ino_t dir)
+errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir)
{
errcode_t retval;
struct expand_dir_struct es;
if (!(fs->flags & EXT2_FLAG_RW))
return EXT2_ET_RO_FILSYS;
+ if (!fs->block_map)
+ return EXT2_ET_NO_BLOCK_BITMAP;
+
retval = ext2fs_check_directory(fs, dir);
if (retval)
return retval;
es.done = 0;
es.err = 0;
+ es.newblocks = 0;
- retval = ext2fs_block_iterate(fs, dir, BLOCK_FLAG_APPEND,
- 0, expand_dir_proc, &es);
+ retval = ext2fs_block_iterate2(fs, dir, BLOCK_FLAG_APPEND,
+ 0, expand_dir_proc, &es);
if (es.err)
return es.err;
return retval;
inode.i_size += fs->blocksize;
- inode.i_blocks += fs->blocksize / 512;
+ inode.i_blocks += (fs->blocksize / 512) * es.newblocks;
retval = ext2fs_write_inode(fs, dir, &inode);
if (retval)