1997-04-26 17:21:57 +04:00
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/*
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* closefs.c --- close an ext2 filesystem
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*
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1997-04-29 20:15:03 +04:00
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* Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU Public
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* License.
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* %End-Header%
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1997-04-26 17:21:57 +04:00
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*/
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#include <stdio.h>
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1997-08-11 03:07:40 +04:00
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#if HAVE_UNISTD_H
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1997-04-26 17:21:57 +04:00
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#include <unistd.h>
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1997-08-11 03:07:40 +04:00
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#endif
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1997-04-26 17:21:57 +04:00
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#include <time.h>
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1997-04-26 17:58:21 +04:00
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#include <string.h>
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1997-04-26 17:21:57 +04:00
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Many files:
inode.c (ext2fs_open_inode_scan): Initialize the group variables
so that we don't need to call get_next_blockgroup() the first
time around. Saves a bit of time, and prevents us from
needing to assign -1 to current_group (which is an unsigned
value).
icount.c (insert_icount_el): Cast the estimated number of inodes
from a float to an ino_t.
alloc.c, alloc_tables.c, badlbocks.c, bb_compat.c, bb_inode.c,
bitmaps.c, bitops.c, block.c, bmap.c, bmove.c, brel_ma.c,
check_desc.c, closefs.c, cmp_bitmaps.c, dblist.c,
dblist_dir.c, dir_iterate.c, dirblock.c, dupfs.c, expanddir.c,
ext2fs.h, fileio.c, freefs.c, get_pathname.c, getsize.c,
icount.c, initialize.c, inline.c, inode.c, irel_ma.c,
ismounted.c, link.c, lookup.c, mkdir.c, namei.c, native.c,
newdir.c, openfs.c, read_bb.c, read_bb_file.c, rs_bitmap.c,
rw_bitmaps.c, swapfs.c, test_io.c, tst_badblocks.c,
tst_getsize.c, tst_iscan.c, unix_io.c, unlink.c, valid_blk.c,
version.c: If EXT2_FLAT_INCLUDES is defined, then assume all
of the ext2-specific header files are in a flat directory.
block.c, bmove.c, dirblock.c, fileio.c: Explicitly cast
all assignments from void * to be compatible with C++.
closefs.c (ext2fs_flush): Add a call to io_channel_flush() to
make sure the contents of the disk are flushed to disk.
dblist.c (ext2fs_add_dir_block): Change new to be new_entry to
avoid C++ namespace clash.
bitmaps.c (ext2fs_copy_bitmap): Change new to be new_map to
avoid C++ namespace clash.
ext2fs.h, bb_inode.c, block.c, bmove.c, brel.h, brel_ma.c,
irel.h, irel_ma.c, dblist.c, dblist_dir.c, dir_iterate.c,
ext2fsP.h, expanddir.c, get_pathname.c, inode.c, link.c,
unlink.c: Change private to be priv_data (to avoid C++
namespace clash)
1998-01-19 17:47:53 +03:00
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#include "ext2_fs.h"
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1997-04-29 20:15:03 +04:00
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#include "ext2fsP.h"
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1997-04-26 17:21:57 +04:00
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2004-12-16 02:06:52 +03:00
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static int test_root(int a, int b)
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{
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if (a == 0)
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return 1;
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while (1) {
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if (a == 1)
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return 1;
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if (a % b)
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return 0;
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a = a / b;
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}
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}
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int ext2fs_bg_has_super(ext2_filsys fs, int group_block)
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{
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if (!(fs->super->s_feature_ro_compat &
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EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER))
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return 1;
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if (test_root(group_block, 3) || (test_root(group_block, 5)) ||
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test_root(group_block, 7))
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return 1;
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return 0;
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}
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2003-11-21 17:02:21 +03:00
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int ext2fs_super_and_bgd_loc(ext2_filsys fs,
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dgrp_t group,
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blk_t *ret_super_blk,
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blk_t *ret_old_desc_blk,
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blk_t *ret_new_desc_blk,
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int *ret_meta_bg)
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{
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blk_t group_block, super_blk = 0, old_desc_blk = 0, new_desc_blk = 0;
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2003-12-07 09:28:50 +03:00
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unsigned int meta_bg, meta_bg_size;
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int numblocks, has_super;
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2003-11-21 17:02:21 +03:00
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int old_desc_blocks;
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group_block = fs->super->s_first_data_block +
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(group * fs->super->s_blocks_per_group);
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if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG)
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old_desc_blocks = fs->super->s_first_meta_bg;
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else
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2004-12-15 22:39:16 +03:00
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old_desc_blocks =
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fs->desc_blocks + fs->super->s_reserved_gdt_blocks;
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2003-11-21 17:02:21 +03:00
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if (group == fs->group_desc_count-1) {
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numblocks = (fs->super->s_blocks_count -
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fs->super->s_first_data_block) %
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fs->super->s_blocks_per_group;
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if (!numblocks)
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numblocks = fs->super->s_blocks_per_group;
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} else
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numblocks = fs->super->s_blocks_per_group;
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has_super = ext2fs_bg_has_super(fs, group);
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if (has_super) {
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super_blk = group_block;
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numblocks--;
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}
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meta_bg_size = (fs->blocksize / sizeof (struct ext2_group_desc));
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meta_bg = group / meta_bg_size;
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if (!(fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) ||
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(meta_bg < fs->super->s_first_meta_bg)) {
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if (has_super) {
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old_desc_blk = group_block + 1;
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numblocks -= old_desc_blocks;
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}
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} else {
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if (((group % meta_bg_size) == 0) ||
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((group % meta_bg_size) == 1) ||
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((group % meta_bg_size) == (meta_bg_size-1))) {
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if (has_super)
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has_super = 1;
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new_desc_blk = group_block + has_super;
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numblocks--;
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}
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}
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numblocks -= 2 + fs->inode_blocks_per_group;
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if (ret_super_blk)
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*ret_super_blk = super_blk;
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if (ret_old_desc_blk)
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*ret_old_desc_blk = old_desc_blk;
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if (ret_new_desc_blk)
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*ret_new_desc_blk = new_desc_blk;
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if (ret_meta_bg)
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*ret_meta_bg = meta_bg;
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return (numblocks);
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}
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2000-10-27 00:24:43 +04:00
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/*
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* This function forces out the primary superblock. We need to only
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* write out those fields which we have changed, since if the
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* filesystem is mounted, it may have changed some of the other
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* fields.
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*
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* It takes as input a superblock which has already been byte swapped
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* (if necessary).
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*
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*/
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static errcode_t write_primary_superblock(ext2_filsys fs,
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struct ext2_super_block *super)
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{
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__u16 *old_super, *new_super;
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int check_idx, write_idx, size;
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errcode_t retval;
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if (!fs->io->manager->write_byte || !fs->orig_super) {
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io_channel_set_blksize(fs->io, SUPERBLOCK_OFFSET);
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retval = io_channel_write_blk(fs->io, 1, -SUPERBLOCK_SIZE,
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super);
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io_channel_set_blksize(fs->io, fs->blocksize);
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return retval;
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}
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old_super = (__u16 *) fs->orig_super;
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new_super = (__u16 *) super;
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for (check_idx = 0; check_idx < SUPERBLOCK_SIZE/2; check_idx++) {
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if (old_super[check_idx] == new_super[check_idx])
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continue;
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write_idx = check_idx;
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for (check_idx++; check_idx < SUPERBLOCK_SIZE/2; check_idx++)
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if (old_super[check_idx] == new_super[check_idx])
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break;
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size = 2 * (check_idx - write_idx);
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#if 0
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printf("Writing %d bytes starting at %d\n",
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size, write_idx*2);
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#endif
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retval = io_channel_write_byte(fs->io,
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SUPERBLOCK_OFFSET + (2 * write_idx), size,
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new_super + write_idx);
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if (retval)
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return retval;
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}
|
2001-07-10 22:27:58 +04:00
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memcpy(fs->orig_super, super, SUPERBLOCK_SIZE);
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2000-10-27 00:24:43 +04:00
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return 0;
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}
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2000-12-13 20:55:49 +03:00
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/*
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* Updates the revision to EXT2_DYNAMIC_REV
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*/
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2000-12-13 21:36:23 +03:00
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void ext2fs_update_dynamic_rev(ext2_filsys fs)
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2000-12-13 20:55:49 +03:00
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{
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struct ext2_super_block *sb = fs->super;
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if (sb->s_rev_level > EXT2_GOOD_OLD_REV)
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return;
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sb->s_rev_level = EXT2_DYNAMIC_REV;
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sb->s_first_ino = EXT2_GOOD_OLD_FIRST_INO;
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sb->s_inode_size = EXT2_GOOD_OLD_INODE_SIZE;
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/* s_uuid is handled by e2fsck already */
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/* other fields should be left alone */
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}
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2002-10-20 08:38:57 +04:00
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static errcode_t write_backup_super(ext2_filsys fs, dgrp_t group,
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blk_t group_block,
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struct ext2_super_block *super_shadow)
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{
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dgrp_t sgrp = group;
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if (sgrp > ((1 << 16) - 1))
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sgrp = (1 << 16) - 1;
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#ifdef EXT2FS_ENABLE_SWAPFS
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if (fs->flags & EXT2_FLAG_SWAP_BYTES)
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super_shadow->s_block_group_nr = ext2fs_swab16(sgrp);
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else
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#endif
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fs->super->s_block_group_nr = sgrp;
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return io_channel_write_blk(fs->io, group_block, -SUPERBLOCK_SIZE,
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super_shadow);
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}
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|
1997-04-26 17:21:57 +04:00
|
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errcode_t ext2fs_flush(ext2_filsys fs)
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|
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{
|
2002-11-08 17:21:46 +03:00
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dgrp_t i,j;
|
Many files:
dosio.c: New file to do DOS/BIOS disk accesses.
namei.c (open_namei): Make pathlen be of type size_t.
llseek.c: Always #include stdlib.h since it's need to define
size_t.
io.h: Use errcode_t for magic numbers.
icount.c (get_icount_el), dupfs.c (ext2fs_dup_handle), dblist.c
(dir_block_cmp): Use size_t where appropriate.
read_bb.c (ext2fs_read_bb_inode), cmp_bitmaps.c
(ext2fs_compare_inode_bitmap): Use blk_t, ino_t and size_t
where appropriate.
closefs.c (ext2fs_flush): Use dgrp_t instead of int where
appropriate.
openfs.c (ext2fs_open), check_desc.c (ext2fs_check_desc): Use blk_t
instead of int where appropriate.
rw_bitmaps.c (read_bitmaps), irel_ma.c, inode.c (ext2fs_write_inode),
initialize.c (ext2fs_initialize): brel_ma.c: Fix to make be
16-bit safe.
link.c (ext2fs_link), unlink.c (ext2fs_unlink), lookup.c (lookup_proc),
ismounted.c (ext2fs_check_if_mounted), block.c (xlate_func):
Add #pragma argsused for Turbo C.
1997-08-12 00:29:22 +04:00
|
|
|
blk_t group_block;
|
1997-04-26 17:21:57 +04:00
|
|
|
errcode_t retval;
|
1997-04-26 17:34:30 +04:00
|
|
|
unsigned long fs_state;
|
1997-04-26 17:58:21 +04:00
|
|
|
struct ext2_super_block *super_shadow = 0;
|
|
|
|
struct ext2_group_desc *group_shadow = 0;
|
|
|
|
struct ext2_group_desc *s, *t;
|
2003-11-21 17:02:21 +03:00
|
|
|
char *group_ptr;
|
|
|
|
int old_desc_blocks;
|
1997-04-26 17:21:57 +04:00
|
|
|
|
1997-04-26 17:34:30 +04:00
|
|
|
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
|
|
|
|
|
1997-04-26 17:58:21 +04:00
|
|
|
fs_state = fs->super->s_state;
|
|
|
|
|
|
|
|
fs->super->s_wtime = time(NULL);
|
2001-01-01 19:17:12 +03:00
|
|
|
fs->super->s_block_group_nr = 0;
|
ChangeLog, Makefile.in, swapfs.c, unix.c:
Makefile.in: Add message.c and swapfs.c to the list of source files to
build the make depend.
swapfs.c, unix.c: Only support the -s and -S options to e2fsck if
ENABLE_SWAPFS is defined.
Many files:
ext2fs.h, bitops.h, block.c, bmap.c, closefs.c, dirblock.c, inode.c,
native.c, openfs.c, rw_bitmaps.c, swapfs.c: Only include the
byte-swapping logic if ENABLE_SWAPFS is turned on or if we're on a
big-endian machine.
initialize.c (ext2fs_initialize):Use WORDS_BIGENDIAN directly to set
EXT2_FLAG_SWAP_BYTES, instead of using ext2fs_native_flag.
native.c (ext2fs_native_flag): Use WORDS_BIGENDIAN provided by
autoconf to determine whether or not return EXT2_FLAG_SWAP_BYTES.
2001-06-11 11:00:04 +04:00
|
|
|
#ifdef EXT2FS_ENABLE_SWAPFS
|
1997-04-29 19:29:49 +04:00
|
|
|
if (fs->flags & EXT2_FLAG_SWAP_BYTES) {
|
1997-10-31 09:07:47 +03:00
|
|
|
retval = EXT2_ET_NO_MEMORY;
|
2003-08-01 17:41:07 +04:00
|
|
|
retval = ext2fs_get_mem(SUPERBLOCK_SIZE, &super_shadow);
|
1997-10-26 06:41:24 +03:00
|
|
|
if (retval)
|
1997-04-26 17:58:21 +04:00
|
|
|
goto errout;
|
1997-10-26 06:41:24 +03:00
|
|
|
retval = ext2fs_get_mem((size_t)(fs->blocksize *
|
|
|
|
fs->desc_blocks),
|
2003-08-01 17:41:07 +04:00
|
|
|
&group_shadow);
|
1997-10-26 06:41:24 +03:00
|
|
|
if (retval)
|
1997-04-26 17:58:21 +04:00
|
|
|
goto errout;
|
Many files:
dosio.c: New file to do DOS/BIOS disk accesses.
namei.c (open_namei): Make pathlen be of type size_t.
llseek.c: Always #include stdlib.h since it's need to define
size_t.
io.h: Use errcode_t for magic numbers.
icount.c (get_icount_el), dupfs.c (ext2fs_dup_handle), dblist.c
(dir_block_cmp): Use size_t where appropriate.
read_bb.c (ext2fs_read_bb_inode), cmp_bitmaps.c
(ext2fs_compare_inode_bitmap): Use blk_t, ino_t and size_t
where appropriate.
closefs.c (ext2fs_flush): Use dgrp_t instead of int where
appropriate.
openfs.c (ext2fs_open), check_desc.c (ext2fs_check_desc): Use blk_t
instead of int where appropriate.
rw_bitmaps.c (read_bitmaps), irel_ma.c, inode.c (ext2fs_write_inode),
initialize.c (ext2fs_initialize): brel_ma.c: Fix to make be
16-bit safe.
link.c (ext2fs_link), unlink.c (ext2fs_unlink), lookup.c (lookup_proc),
ismounted.c (ext2fs_check_if_mounted), block.c (xlate_func):
Add #pragma argsused for Turbo C.
1997-08-12 00:29:22 +04:00
|
|
|
memset(group_shadow, 0, (size_t) fs->blocksize *
|
|
|
|
fs->desc_blocks);
|
1997-04-26 17:58:21 +04:00
|
|
|
|
|
|
|
/* swap the group descriptors */
|
|
|
|
for (j=0, s=fs->group_desc, t=group_shadow;
|
|
|
|
j < fs->group_desc_count; j++, t++, s++) {
|
|
|
|
*t = *s;
|
|
|
|
ext2fs_swap_group_desc(t);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
super_shadow = fs->super;
|
|
|
|
group_shadow = fs->group_desc;
|
|
|
|
}
|
ChangeLog, Makefile.in, swapfs.c, unix.c:
Makefile.in: Add message.c and swapfs.c to the list of source files to
build the make depend.
swapfs.c, unix.c: Only support the -s and -S options to e2fsck if
ENABLE_SWAPFS is defined.
Many files:
ext2fs.h, bitops.h, block.c, bmap.c, closefs.c, dirblock.c, inode.c,
native.c, openfs.c, rw_bitmaps.c, swapfs.c: Only include the
byte-swapping logic if ENABLE_SWAPFS is turned on or if we're on a
big-endian machine.
initialize.c (ext2fs_initialize):Use WORDS_BIGENDIAN directly to set
EXT2_FLAG_SWAP_BYTES, instead of using ext2fs_native_flag.
native.c (ext2fs_native_flag): Use WORDS_BIGENDIAN provided by
autoconf to determine whether or not return EXT2_FLAG_SWAP_BYTES.
2001-06-11 11:00:04 +04:00
|
|
|
#else
|
|
|
|
super_shadow = fs->super;
|
|
|
|
group_shadow = fs->group_desc;
|
|
|
|
#endif
|
1997-04-26 17:58:21 +04:00
|
|
|
|
2001-01-14 21:03:43 +03:00
|
|
|
/*
|
|
|
|
* If this is an external journal device, don't write out the
|
|
|
|
* block group descriptors or any of the backup superblocks
|
|
|
|
*/
|
|
|
|
if (fs->super->s_feature_incompat &
|
2004-05-27 05:29:14 +04:00
|
|
|
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)
|
|
|
|
goto write_primary_superblock_only;
|
2001-01-14 21:03:43 +03:00
|
|
|
|
1997-04-26 17:34:30 +04:00
|
|
|
/*
|
1997-04-26 17:58:21 +04:00
|
|
|
* Set the state of the FS to be non-valid. (The state has
|
2004-05-27 05:29:14 +04:00
|
|
|
* already been backed up earlier, and will be restored after
|
|
|
|
* we write out the backup superblocks.)
|
1997-04-26 17:34:30 +04:00
|
|
|
*/
|
|
|
|
fs->super->s_state &= ~EXT2_VALID_FS;
|
ChangeLog, Makefile.in, swapfs.c, unix.c:
Makefile.in: Add message.c and swapfs.c to the list of source files to
build the make depend.
swapfs.c, unix.c: Only support the -s and -S options to e2fsck if
ENABLE_SWAPFS is defined.
Many files:
ext2fs.h, bitops.h, block.c, bmap.c, closefs.c, dirblock.c, inode.c,
native.c, openfs.c, rw_bitmaps.c, swapfs.c: Only include the
byte-swapping logic if ENABLE_SWAPFS is turned on or if we're on a
big-endian machine.
initialize.c (ext2fs_initialize):Use WORDS_BIGENDIAN directly to set
EXT2_FLAG_SWAP_BYTES, instead of using ext2fs_native_flag.
native.c (ext2fs_native_flag): Use WORDS_BIGENDIAN provided by
autoconf to determine whether or not return EXT2_FLAG_SWAP_BYTES.
2001-06-11 11:00:04 +04:00
|
|
|
#ifdef EXT2FS_ENABLE_SWAPFS
|
1997-04-29 19:29:49 +04:00
|
|
|
if (fs->flags & EXT2_FLAG_SWAP_BYTES) {
|
1997-04-26 17:58:21 +04:00
|
|
|
*super_shadow = *fs->super;
|
|
|
|
ext2fs_swap_super(super_shadow);
|
|
|
|
}
|
ChangeLog, Makefile.in, swapfs.c, unix.c:
Makefile.in: Add message.c and swapfs.c to the list of source files to
build the make depend.
swapfs.c, unix.c: Only support the -s and -S options to e2fsck if
ENABLE_SWAPFS is defined.
Many files:
ext2fs.h, bitops.h, block.c, bmap.c, closefs.c, dirblock.c, inode.c,
native.c, openfs.c, rw_bitmaps.c, swapfs.c: Only include the
byte-swapping logic if ENABLE_SWAPFS is turned on or if we're on a
big-endian machine.
initialize.c (ext2fs_initialize):Use WORDS_BIGENDIAN directly to set
EXT2_FLAG_SWAP_BYTES, instead of using ext2fs_native_flag.
native.c (ext2fs_native_flag): Use WORDS_BIGENDIAN provided by
autoconf to determine whether or not return EXT2_FLAG_SWAP_BYTES.
2001-06-11 11:00:04 +04:00
|
|
|
#endif
|
1997-04-26 17:34:30 +04:00
|
|
|
|
1997-04-26 17:21:57 +04:00
|
|
|
/*
|
|
|
|
* Write out the master group descriptors, and the backup
|
|
|
|
* superblocks and group descriptors.
|
|
|
|
*/
|
|
|
|
group_block = fs->super->s_first_data_block;
|
2003-11-21 17:02:21 +03:00
|
|
|
group_ptr = (char *) group_shadow;
|
|
|
|
if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG)
|
|
|
|
old_desc_blocks = fs->super->s_first_meta_bg;
|
|
|
|
else
|
|
|
|
old_desc_blocks = fs->desc_blocks;
|
|
|
|
|
2002-11-08 17:21:46 +03:00
|
|
|
for (i = 0; i < fs->group_desc_count; i++) {
|
2003-11-21 17:02:21 +03:00
|
|
|
blk_t super_blk, old_desc_blk, new_desc_blk;
|
|
|
|
int meta_bg;
|
|
|
|
|
|
|
|
ext2fs_super_and_bgd_loc(fs, i, &super_blk, &old_desc_blk,
|
|
|
|
&new_desc_blk, &meta_bg);
|
|
|
|
|
|
|
|
if (!(fs->flags & EXT2_FLAG_MASTER_SB_ONLY) &&i && super_blk) {
|
|
|
|
retval = write_backup_super(fs, i, super_blk,
|
2002-10-20 08:38:57 +04:00
|
|
|
super_shadow);
|
1997-04-26 17:58:21 +04:00
|
|
|
if (retval)
|
|
|
|
goto errout;
|
1997-04-26 17:21:57 +04:00
|
|
|
}
|
2003-11-21 17:02:21 +03:00
|
|
|
if (fs->flags & EXT2_FLAG_SUPER_ONLY)
|
|
|
|
continue;
|
|
|
|
if ((old_desc_blk) &&
|
|
|
|
(!(fs->flags & EXT2_FLAG_MASTER_SB_ONLY) || (i == 0))) {
|
|
|
|
retval = io_channel_write_blk(fs->io,
|
|
|
|
old_desc_blk, old_desc_blocks, group_ptr);
|
|
|
|
if (retval)
|
|
|
|
goto errout;
|
|
|
|
}
|
|
|
|
if (new_desc_blk) {
|
|
|
|
retval = io_channel_write_blk(fs->io, new_desc_blk,
|
|
|
|
1, group_ptr + (meta_bg*fs->blocksize));
|
|
|
|
if (retval)
|
1997-04-26 17:58:21 +04:00
|
|
|
goto errout;
|
1997-04-26 17:21:57 +04:00
|
|
|
}
|
|
|
|
}
|
2001-01-01 19:17:12 +03:00
|
|
|
fs->super->s_block_group_nr = 0;
|
2004-05-27 05:29:14 +04:00
|
|
|
fs->super->s_state = fs_state;
|
|
|
|
#ifdef EXT2FS_ENABLE_SWAPFS
|
|
|
|
if (fs->flags & EXT2_FLAG_SWAP_BYTES) {
|
|
|
|
*super_shadow = *fs->super;
|
|
|
|
ext2fs_swap_super(super_shadow);
|
|
|
|
}
|
|
|
|
#endif
|
1997-04-26 17:21:57 +04:00
|
|
|
|
|
|
|
/*
|
|
|
|
* If the write_bitmaps() function is present, call it to
|
|
|
|
* flush the bitmaps. This is done this way so that a simple
|
|
|
|
* program that doesn't mess with the bitmaps doesn't need to
|
|
|
|
* drag in the bitmaps.c code.
|
|
|
|
*/
|
|
|
|
if (fs->write_bitmaps) {
|
|
|
|
retval = fs->write_bitmaps(fs);
|
|
|
|
if (retval)
|
1997-04-26 17:58:21 +04:00
|
|
|
goto errout;
|
1997-04-26 17:21:57 +04:00
|
|
|
}
|
Many files:
inode.c (ext2fs_open_inode_scan): Initialize the group variables
so that we don't need to call get_next_blockgroup() the first
time around. Saves a bit of time, and prevents us from
needing to assign -1 to current_group (which is an unsigned
value).
icount.c (insert_icount_el): Cast the estimated number of inodes
from a float to an ino_t.
alloc.c, alloc_tables.c, badlbocks.c, bb_compat.c, bb_inode.c,
bitmaps.c, bitops.c, block.c, bmap.c, bmove.c, brel_ma.c,
check_desc.c, closefs.c, cmp_bitmaps.c, dblist.c,
dblist_dir.c, dir_iterate.c, dirblock.c, dupfs.c, expanddir.c,
ext2fs.h, fileio.c, freefs.c, get_pathname.c, getsize.c,
icount.c, initialize.c, inline.c, inode.c, irel_ma.c,
ismounted.c, link.c, lookup.c, mkdir.c, namei.c, native.c,
newdir.c, openfs.c, read_bb.c, read_bb_file.c, rs_bitmap.c,
rw_bitmaps.c, swapfs.c, test_io.c, tst_badblocks.c,
tst_getsize.c, tst_iscan.c, unix_io.c, unlink.c, valid_blk.c,
version.c: If EXT2_FLAT_INCLUDES is defined, then assume all
of the ext2-specific header files are in a flat directory.
block.c, bmove.c, dirblock.c, fileio.c: Explicitly cast
all assignments from void * to be compatible with C++.
closefs.c (ext2fs_flush): Add a call to io_channel_flush() to
make sure the contents of the disk are flushed to disk.
dblist.c (ext2fs_add_dir_block): Change new to be new_entry to
avoid C++ namespace clash.
bitmaps.c (ext2fs_copy_bitmap): Change new to be new_map to
avoid C++ namespace clash.
ext2fs.h, bb_inode.c, block.c, bmove.c, brel.h, brel_ma.c,
irel.h, irel_ma.c, dblist.c, dblist_dir.c, dir_iterate.c,
ext2fsP.h, expanddir.c, get_pathname.c, inode.c, link.c,
unlink.c: Change private to be priv_data (to avoid C++
namespace clash)
1998-01-19 17:47:53 +03:00
|
|
|
|
2004-05-27 05:29:14 +04:00
|
|
|
write_primary_superblock_only:
|
Many files:
inode.c (ext2fs_open_inode_scan): Initialize the group variables
so that we don't need to call get_next_blockgroup() the first
time around. Saves a bit of time, and prevents us from
needing to assign -1 to current_group (which is an unsigned
value).
icount.c (insert_icount_el): Cast the estimated number of inodes
from a float to an ino_t.
alloc.c, alloc_tables.c, badlbocks.c, bb_compat.c, bb_inode.c,
bitmaps.c, bitops.c, block.c, bmap.c, bmove.c, brel_ma.c,
check_desc.c, closefs.c, cmp_bitmaps.c, dblist.c,
dblist_dir.c, dir_iterate.c, dirblock.c, dupfs.c, expanddir.c,
ext2fs.h, fileio.c, freefs.c, get_pathname.c, getsize.c,
icount.c, initialize.c, inline.c, inode.c, irel_ma.c,
ismounted.c, link.c, lookup.c, mkdir.c, namei.c, native.c,
newdir.c, openfs.c, read_bb.c, read_bb_file.c, rs_bitmap.c,
rw_bitmaps.c, swapfs.c, test_io.c, tst_badblocks.c,
tst_getsize.c, tst_iscan.c, unix_io.c, unlink.c, valid_blk.c,
version.c: If EXT2_FLAT_INCLUDES is defined, then assume all
of the ext2-specific header files are in a flat directory.
block.c, bmove.c, dirblock.c, fileio.c: Explicitly cast
all assignments from void * to be compatible with C++.
closefs.c (ext2fs_flush): Add a call to io_channel_flush() to
make sure the contents of the disk are flushed to disk.
dblist.c (ext2fs_add_dir_block): Change new to be new_entry to
avoid C++ namespace clash.
bitmaps.c (ext2fs_copy_bitmap): Change new to be new_map to
avoid C++ namespace clash.
ext2fs.h, bb_inode.c, block.c, bmove.c, brel.h, brel_ma.c,
irel.h, irel_ma.c, dblist.c, dblist_dir.c, dir_iterate.c,
ext2fsP.h, expanddir.c, get_pathname.c, inode.c, link.c,
unlink.c: Change private to be priv_data (to avoid C++
namespace clash)
1998-01-19 17:47:53 +03:00
|
|
|
/*
|
2004-05-27 05:29:14 +04:00
|
|
|
* Write out master superblock. This has to be done
|
|
|
|
* separately, since it is located at a fixed location
|
|
|
|
* (SUPERBLOCK_OFFSET). We flush all other pending changes
|
|
|
|
* out to disk first, just to avoid a race condition with an
|
|
|
|
* insy-tinsy window....
|
Many files:
inode.c (ext2fs_open_inode_scan): Initialize the group variables
so that we don't need to call get_next_blockgroup() the first
time around. Saves a bit of time, and prevents us from
needing to assign -1 to current_group (which is an unsigned
value).
icount.c (insert_icount_el): Cast the estimated number of inodes
from a float to an ino_t.
alloc.c, alloc_tables.c, badlbocks.c, bb_compat.c, bb_inode.c,
bitmaps.c, bitops.c, block.c, bmap.c, bmove.c, brel_ma.c,
check_desc.c, closefs.c, cmp_bitmaps.c, dblist.c,
dblist_dir.c, dir_iterate.c, dirblock.c, dupfs.c, expanddir.c,
ext2fs.h, fileio.c, freefs.c, get_pathname.c, getsize.c,
icount.c, initialize.c, inline.c, inode.c, irel_ma.c,
ismounted.c, link.c, lookup.c, mkdir.c, namei.c, native.c,
newdir.c, openfs.c, read_bb.c, read_bb_file.c, rs_bitmap.c,
rw_bitmaps.c, swapfs.c, test_io.c, tst_badblocks.c,
tst_getsize.c, tst_iscan.c, unix_io.c, unlink.c, valid_blk.c,
version.c: If EXT2_FLAT_INCLUDES is defined, then assume all
of the ext2-specific header files are in a flat directory.
block.c, bmove.c, dirblock.c, fileio.c: Explicitly cast
all assignments from void * to be compatible with C++.
closefs.c (ext2fs_flush): Add a call to io_channel_flush() to
make sure the contents of the disk are flushed to disk.
dblist.c (ext2fs_add_dir_block): Change new to be new_entry to
avoid C++ namespace clash.
bitmaps.c (ext2fs_copy_bitmap): Change new to be new_map to
avoid C++ namespace clash.
ext2fs.h, bb_inode.c, block.c, bmove.c, brel.h, brel_ma.c,
irel.h, irel_ma.c, dblist.c, dblist_dir.c, dir_iterate.c,
ext2fsP.h, expanddir.c, get_pathname.c, inode.c, link.c,
unlink.c: Change private to be priv_data (to avoid C++
namespace clash)
1998-01-19 17:47:53 +03:00
|
|
|
*/
|
|
|
|
retval = io_channel_flush(fs->io);
|
2004-05-27 05:29:14 +04:00
|
|
|
retval = write_primary_superblock(fs, super_shadow);
|
|
|
|
if (retval)
|
|
|
|
goto errout;
|
|
|
|
|
|
|
|
fs->flags &= ~EXT2_FLAG_DIRTY;
|
|
|
|
|
|
|
|
retval = io_channel_flush(fs->io);
|
1997-04-26 17:58:21 +04:00
|
|
|
errout:
|
|
|
|
fs->super->s_state = fs_state;
|
1997-04-29 19:29:49 +04:00
|
|
|
if (fs->flags & EXT2_FLAG_SWAP_BYTES) {
|
1997-04-26 17:58:21 +04:00
|
|
|
if (super_shadow)
|
2003-08-01 17:41:07 +04:00
|
|
|
ext2fs_free_mem(&super_shadow);
|
1997-04-26 17:58:21 +04:00
|
|
|
if (group_shadow)
|
2003-08-01 17:41:07 +04:00
|
|
|
ext2fs_free_mem(&group_shadow);
|
1997-04-26 17:58:21 +04:00
|
|
|
}
|
|
|
|
return retval;
|
1997-04-26 17:21:57 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
errcode_t ext2fs_close(ext2_filsys fs)
|
|
|
|
{
|
|
|
|
errcode_t retval;
|
|
|
|
|
1997-04-26 17:34:30 +04:00
|
|
|
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
|
|
|
|
|
1997-04-26 17:21:57 +04:00
|
|
|
if (fs->flags & EXT2_FLAG_DIRTY) {
|
|
|
|
retval = ext2fs_flush(fs);
|
|
|
|
if (retval)
|
|
|
|
return retval;
|
|
|
|
}
|
1997-04-29 20:15:03 +04:00
|
|
|
if (fs->write_bitmaps) {
|
|
|
|
retval = fs->write_bitmaps(fs);
|
|
|
|
if (retval)
|
|
|
|
return retval;
|
|
|
|
}
|
1997-04-26 17:21:57 +04:00
|
|
|
ext2fs_free(fs);
|
|
|
|
return 0;
|
|
|
|
}
|
1997-04-29 20:15:03 +04:00
|
|
|
|