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-rw-r--r--e2fslib/alloc.c178
1 files changed, 0 insertions, 178 deletions
diff --git a/e2fslib/alloc.c b/e2fslib/alloc.c
deleted file mode 100644
index 2de05bc..0000000
--- a/e2fslib/alloc.c
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * alloc.c --- allocate new inodes, blocks for ext2fs
- *
- * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- *
- */
-
-#include <stdio.h>
-#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <time.h>
-#include <string.h>
-#if HAVE_SYS_STAT_H
-#include <sys/stat.h>
-#endif
-#if HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-
-#include "ext2_fs.h"
-#include "ext2fs.h"
-
-/*
- * Right now, just search forward from the parent directory's block
- * group to find the next free inode.
- *
- * Should have a special policy for directories.
- */
-errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
- ext2fs_inode_bitmap map, ext2_ino_t *ret)
-{
- ext2_ino_t dir_group = 0;
- ext2_ino_t i;
- ext2_ino_t start_inode;
-
- EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
-
- if (!map)
- map = fs->inode_map;
- if (!map)
- return EXT2_ET_NO_INODE_BITMAP;
-
- if (dir > 0)
- dir_group = (dir - 1) / EXT2_INODES_PER_GROUP(fs->super);
-
- start_inode = (dir_group * EXT2_INODES_PER_GROUP(fs->super)) + 1;
- if (start_inode < EXT2_FIRST_INODE(fs->super))
- start_inode = EXT2_FIRST_INODE(fs->super);
- i = start_inode;
-
- do {
- if (!ext2fs_fast_test_inode_bitmap(map, i))
- break;
- i++;
- if (i > fs->super->s_inodes_count)
- i = EXT2_FIRST_INODE(fs->super);
- } while (i != start_inode);
-
- if (ext2fs_test_inode_bitmap(map, i))
- return EXT2_ET_INODE_ALLOC_FAIL;
- *ret = i;
- return 0;
-}
-
-/*
- * Stupid algorithm --- we now just search forward starting from the
- * goal. Should put in a smarter one someday....
- */
-errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
- ext2fs_block_bitmap map, blk_t *ret)
-{
- blk_t i;
-
- EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
-
- if (!map)
- map = fs->block_map;
- if (!map)
- return EXT2_ET_NO_BLOCK_BITMAP;
- if (!goal || (goal >= fs->super->s_blocks_count))
- goal = fs->super->s_first_data_block;
- i = goal;
- do {
- if (!ext2fs_fast_test_block_bitmap(map, i)) {
- *ret = i;
- return 0;
- }
- i++;
- if (i >= fs->super->s_blocks_count)
- i = fs->super->s_first_data_block;
- } while (i != goal);
- return EXT2_ET_BLOCK_ALLOC_FAIL;
-}
-
-/*
- * This function zeros out the allocated block, and updates all of the
- * appropriate filesystem records.
- */
-errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
- char *block_buf, blk_t *ret)
-{
- errcode_t retval;
- blk_t block;
- int group;
- char *buf = 0;
-
- if (!block_buf) {
- retval = ext2fs_get_mem(fs->blocksize, (void **) &buf);
- if (retval)
- return retval;
- block_buf = buf;
- }
- memset(block_buf, 0, fs->blocksize);
-
- if (!fs->block_map) {
- retval = ext2fs_read_block_bitmap(fs);
- if (retval)
- goto fail;
- }
-
- retval = ext2fs_new_block(fs, goal, 0, &block);
- if (retval)
- goto fail;
-
- retval = io_channel_write_blk(fs->io, block, 1, block_buf);
- if (retval)
- goto fail;
-
- fs->super->s_free_blocks_count--;
- group = ext2fs_group_of_blk(fs, block);
- fs->group_desc[group].bg_free_blocks_count--;
- ext2fs_mark_block_bitmap(fs->block_map, block);
- ext2fs_mark_super_dirty(fs);
- ext2fs_mark_bb_dirty(fs);
- *ret = block;
- return 0;
-
-fail:
- if (buf)
- ext2fs_free_mem((void **) &buf);
- return retval;
-}
-
-errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish,
- int num, ext2fs_block_bitmap map, blk_t *ret)
-{
- blk_t b = start;
-
- EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
-
- if (!map)
- map = fs->block_map;
- if (!map)
- return EXT2_ET_NO_BLOCK_BITMAP;
- if (!b)
- b = fs->super->s_first_data_block;
- if (!finish)
- finish = start;
- if (!num)
- num = 1;
- do {
- if (b+num-1 > fs->super->s_blocks_count)
- b = fs->super->s_first_data_block;
- if (ext2fs_fast_test_block_bitmap_range(map, b, num)) {
- *ret = b;
- return 0;
- }
- b++;
- } while (b != finish);
- return EXT2_ET_BLOCK_ALLOC_FAIL;
-}
-