static void move_quota_inode(ext2_filsys fs, ext2_ino_t from_ino,
ext2_ino_t to_ino, enum quota_type qtype)
{
struct ext2_inode inode;
errcode_t retval;
char qf_name[QUOTA_NAME_LEN];
/* We need the inode bitmap to be loaded */
if (ext2fs_read_bitmaps(fs))
return;
retval = ext2fs_read_inode(fs, from_ino, &inode);
if (retval) {
com_err("ext2fs_read_inode", retval, "%s",
_("in move_quota_inode"));
return;
}
inode.i_links_count = 1;
inode.i_mode = LINUX_S_IFREG | 0600;
inode.i_flags = EXT2_IMMUTABLE_FL;
if (ext2fs_has_feature_extents(fs->super))
inode.i_flags |= EXT4_EXTENTS_FL;
retval = ext2fs_write_new_inode(fs, to_ino, &inode);
if (retval) {
com_err("ext2fs_write_new_inode", retval, "%s",
_("in move_quota_inode"));
return;
}
/* unlink the old inode */
quota_get_qf_name(qtype, QFMT_VFS_V1, qf_name);
ext2fs_unlink(fs, EXT2_ROOT_INO, qf_name, from_ino, 0);
ext2fs_inode_alloc_stats(fs, from_ino, -1);
/* Clear out the original inode in the inode-table block. */
memset(&inode, 0, sizeof(struct ext2_inode));
ext2fs_write_inode(fs, from_ino, &inode);
}
int main (int argc, char ** argv)
{
errcode_t retval;
ext2_filsys fs;
int c;
int flags = 0;
int flush = 0;
int force = 0;
int io_flags = 0;
int force_min_size = 0;
int print_min_size = 0;
int fd, ret;
blk64_t new_size = 0;
blk64_t max_size = 0;
blk64_t min_size = 0;
io_manager io_ptr;
char *new_size_str = 0;
int use_stride = -1;
ext2fs_struct_stat st_buf;
__s64 new_file_size;
unsigned int sys_page_size = 4096;
unsigned int blocksize;
long sysval;
int len, mount_flags;
char *mtpt, *undo_file = NULL;
#ifdef ENABLE_NLS
setlocale(LC_MESSAGES, "");
setlocale(LC_CTYPE, "");
bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
textdomain(NLS_CAT_NAME);
set_com_err_gettext(gettext);
#endif
add_error_table(&et_ext2_error_table);
fprintf (stderr, "resize2fs %s (%s)\n",
E2FSPROGS_VERSION, E2FSPROGS_DATE);
if (argc && *argv)
program_name = *argv;
while ((c = getopt(argc, argv, "d:fFhMPpS:bsz:")) != EOF) {
switch (c) {
case 'h':
usage(program_name);
break;
case 'f':
force = 1;
break;
case 'F':
flush = 1;
break;
case 'M':
force_min_size = 1;
break;
case 'P':
print_min_size = 1;
break;
case 'd':
flags |= atoi(optarg);
break;
case 'p':
flags |= RESIZE_PERCENT_COMPLETE;
break;
case 'S':
use_stride = atoi(optarg);
break;
case 'b':
flags |= RESIZE_ENABLE_64BIT;
break;
case 's':
flags |= RESIZE_DISABLE_64BIT;
break;
case 'z':
undo_file = optarg;
break;
default:
usage(program_name);
}
}
if (optind == argc)
usage(program_name);
device_name = argv[optind++];
if (optind < argc)
new_size_str = argv[optind++];
if (optind < argc)
usage(program_name);
io_options = strchr(device_name, '?');
if (io_options)
*io_options++ = 0;
/*
* Figure out whether or not the device is mounted, and if it is
* where it is mounted.
*/
len=80;
while (1) {
mtpt = malloc(len);
if (!mtpt)
return ENOMEM;
mtpt[len-1] = 0;
retval = ext2fs_check_mount_point(device_name, &mount_flags,
mtpt, len);
if (retval) {
com_err("ext2fs_check_mount_point", retval,
_("while determining whether %s is mounted."),
device_name);
exit(1);
}
if (!(mount_flags & EXT2_MF_MOUNTED) || (mtpt[len-1] == 0))
break;
free(mtpt);
len = 2 * len;
}
fd = ext2fs_open_file(device_name, O_RDWR, 0);
if (fd < 0) {
com_err("open", errno, _("while opening %s"),
device_name);
exit(1);
}
ret = ext2fs_fstat(fd, &st_buf);
if (ret < 0) {
com_err("open", errno,
_("while getting stat information for %s"),
device_name);
exit(1);
}
if (flush) {
retval = ext2fs_sync_device(fd, 1);
if (retval) {
com_err(argv[0], retval,
_("while trying to flush %s"),
device_name);
exit(1);
}
}
if (!S_ISREG(st_buf.st_mode )) {
close(fd);
fd = -1;
}
#ifdef CONFIG_TESTIO_DEBUG
if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
io_ptr = test_io_manager;
test_io_backing_manager = unix_io_manager;
} else
#endif
io_ptr = unix_io_manager;
if (!(mount_flags & EXT2_MF_MOUNTED))
io_flags = EXT2_FLAG_RW | EXT2_FLAG_EXCLUSIVE;
io_flags |= EXT2_FLAG_64BITS;
if (undo_file) {
retval = resize2fs_setup_tdb(device_name, undo_file, &io_ptr);
if (retval)
exit(1);
}
retval = ext2fs_open2(device_name, io_options, io_flags,
0, 0, io_ptr, &fs);
if (retval) {
com_err(program_name, retval, _("while trying to open %s"),
device_name);
printf("%s", _("Couldn't find valid filesystem superblock.\n"));
exit (1);
}
fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
/*
* Before acting on an unmounted filesystem, make sure it's ok,
* unless the user is forcing it.
*
* We do ERROR and VALID checks even if we're only printing the
* minimimum size, because traversal of a badly damaged filesystem
* can cause issues as well. We don't require it to be fscked after
* the last mount time in this case, though, as this is a bit less
* risky.
*/
if (!force && !(mount_flags & EXT2_MF_MOUNTED)) {
int checkit = 0;
if (fs->super->s_state & EXT2_ERROR_FS)
checkit = 1;
if ((fs->super->s_state & EXT2_VALID_FS) == 0)
checkit = 1;
if ((fs->super->s_lastcheck < fs->super->s_mtime) &&
!print_min_size)
checkit = 1;
if (checkit) {
fprintf(stderr,
_("Please run 'e2fsck -f %s' first.\n\n"),
device_name);
exit(1);
}
}
/*
* Check for compatibility with the feature sets. We need to
* be more stringent than ext2fs_open().
*/
if (fs->super->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) {
com_err(program_name, EXT2_ET_UNSUPP_FEATURE,
"(%s)", device_name);
exit(1);
}
min_size = calculate_minimum_resize_size(fs, flags);
if (print_min_size) {
printf(_("Estimated minimum size of the filesystem: %llu\n"),
min_size);
exit(0);
}
/* Determine the system page size if possible */
#ifdef HAVE_SYSCONF
#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
#define _SC_PAGESIZE _SC_PAGE_SIZE
#endif
#ifdef _SC_PAGESIZE
sysval = sysconf(_SC_PAGESIZE);
if (sysval > 0)
sys_page_size = sysval;
#endif /* _SC_PAGESIZE */
#endif /* HAVE_SYSCONF */
/*
* Get the size of the containing partition, and use this for
* defaults and for making sure the new filesystem doesn't
* exceed the partition size.
*/
blocksize = fs->blocksize;
retval = ext2fs_get_device_size2(device_name, blocksize,
&max_size);
if (retval) {
com_err(program_name, retval, "%s",
_("while trying to determine filesystem size"));
exit(1);
}
if (force_min_size)
new_size = min_size;
else if (new_size_str) {
new_size = parse_num_blocks2(new_size_str,
fs->super->s_log_block_size);
if (new_size == 0) {
com_err(program_name, 0,
_("Invalid new size: %s\n"), new_size_str);
exit(1);
}
} else {
new_size = max_size;
/* Round down to an even multiple of a pagesize */
if (sys_page_size > blocksize)
new_size &= ~((sys_page_size / blocksize)-1);
}
/* If changing 64bit, don't change the filesystem size. */
if (flags & (RESIZE_DISABLE_64BIT | RESIZE_ENABLE_64BIT)) {
new_size = ext2fs_blocks_count(fs->super);
}
if (!ext2fs_has_feature_64bit(fs->super)) {
/* Take 16T down to 2^32-1 blocks */
if (new_size == (1ULL << 32))
new_size--;
else if (new_size > (1ULL << 32)) {
com_err(program_name, 0, "%s",
_("New size too large to be "
"expressed in 32 bits\n"));
exit(1);
}
}
if (!force && new_size < min_size) {
com_err(program_name, 0,
_("New size smaller than minimum (%llu)\n"), min_size);
exit(1);
}
if (use_stride >= 0) {
if (use_stride >= (int) fs->super->s_blocks_per_group) {
com_err(program_name, 0, "%s",
_("Invalid stride length"));
exit(1);
}
fs->stride = fs->super->s_raid_stride = use_stride;
ext2fs_mark_super_dirty(fs);
} else
determine_fs_stride(fs);
/*
* If we are resizing a plain file, and it's not big enough,
* automatically extend it in a sparse fashion by writing the
* last requested block.
*/
new_file_size = ((__u64) new_size) * blocksize;
if ((__u64) new_file_size >
(((__u64) 1) << (sizeof(st_buf.st_size)*8 - 1)) - 1)
fd = -1;
if ((new_file_size > st_buf.st_size) &&
(fd > 0)) {
if ((ext2fs_llseek(fd, new_file_size-1, SEEK_SET) >= 0) &&
(write(fd, "0", 1) == 1))
max_size = new_size;
}
if (!force && (new_size > max_size)) {
fprintf(stderr, _("The containing partition (or device)"
" is only %llu (%dk) blocks.\nYou requested a new size"
" of %llu blocks.\n\n"), max_size,
blocksize / 1024, new_size);
exit(1);
}
if ((flags & RESIZE_DISABLE_64BIT) && (flags & RESIZE_ENABLE_64BIT)) {
fprintf(stderr, _("Cannot set and unset 64bit feature.\n"));
exit(1);
} else if (flags & (RESIZE_DISABLE_64BIT | RESIZE_ENABLE_64BIT)) {
if (new_size >= (1ULL << 32)) {
fprintf(stderr, _("Cannot change the 64bit feature "
"on a filesystem that is larger than "
"2^32 blocks.\n"));
exit(1);
}
if (mount_flags & EXT2_MF_MOUNTED) {
fprintf(stderr, _("Cannot change the 64bit feature "
"while the filesystem is mounted.\n"));
exit(1);
}
if (flags & RESIZE_ENABLE_64BIT &&
!ext2fs_has_feature_extents(fs->super)) {
fprintf(stderr, _("Please enable the extents feature "
"with tune2fs before enabling the 64bit "
"feature.\n"));
exit(1);
}
} else if (new_size == ext2fs_blocks_count(fs->super)) {
fprintf(stderr, _("The filesystem is already %llu (%dk) "
"blocks long. Nothing to do!\n\n"), new_size,
blocksize / 1024);
exit(0);
}
if ((flags & RESIZE_ENABLE_64BIT) &&
ext2fs_has_feature_64bit(fs->super)) {
fprintf(stderr, _("The filesystem is already 64-bit.\n"));
exit(0);
}
if ((flags & RESIZE_DISABLE_64BIT) &&
!ext2fs_has_feature_64bit(fs->super)) {
fprintf(stderr, _("The filesystem is already 32-bit.\n"));
exit(0);
}
if (mount_flags & EXT2_MF_MOUNTED) {
bigalloc_check(fs, force);
retval = online_resize_fs(fs, mtpt, &new_size, flags);
} else {
bigalloc_check(fs, force);
if (flags & RESIZE_ENABLE_64BIT)
printf(_("Converting the filesystem to 64-bit.\n"));
else if (flags & RESIZE_DISABLE_64BIT)
printf(_("Converting the filesystem to 32-bit.\n"));
else
printf(_("Resizing the filesystem on "
"%s to %llu (%dk) blocks.\n"),
device_name, new_size, blocksize / 1024);
retval = resize_fs(fs, &new_size, flags,
((flags & RESIZE_PERCENT_COMPLETE) ?
resize_progress_func : 0));
}
free(mtpt);
if (retval) {
com_err(program_name, retval, _("while trying to resize %s"),
device_name);
fprintf(stderr,
_("Please run 'e2fsck -fy %s' to fix the filesystem\n"
"after the aborted resize operation.\n"),
device_name);
ext2fs_close_free(&fs);
exit(1);
}
printf(_("The filesystem on %s is now %llu (%dk) blocks long.\n\n"),
device_name, new_size, blocksize / 1024);
if ((st_buf.st_size > new_file_size) &&
(fd > 0)) {
#ifdef HAVE_FTRUNCATE64
retval = ftruncate64(fd, new_file_size);
#else
retval = 0;
/* Only truncate if new_file_size doesn't overflow off_t */
if (((off_t) new_file_size) == new_file_size)
retval = ftruncate(fd, (off_t) new_file_size);
#endif
if (retval)
com_err(program_name, retval,
_("while trying to truncate %s"),
device_name);
}
if (fd > 0)
close(fd);
remove_error_table(&et_ext2_error_table);
return (0);
}
errcode_t mk_hugefiles(ext2_filsys fs, const char *device_name)
{
unsigned long i;
ext2_ino_t dir;
errcode_t retval;
blk64_t fs_blocks, part_offset = 0;
unsigned long align;
int d, dsize;
char *t;
if (!get_bool_from_profile(fs_types, "make_hugefiles", 0))
return 0;
if (!ext2fs_has_feature_extents(fs->super))
return EXT2_ET_EXTENT_NOT_SUPPORTED;
uid = get_int_from_profile(fs_types, "hugefiles_uid", 0);
gid = get_int_from_profile(fs_types, "hugefiles_gid", 0);
fs->umask = get_int_from_profile(fs_types, "hugefiles_umask", 077);
num_files = get_int_from_profile(fs_types, "num_hugefiles", 0);
t = get_string_from_profile(fs_types, "hugefiles_slack", "1M");
num_slack = parse_num_blocks2(t, fs->super->s_log_block_size);
free(t);
t = get_string_from_profile(fs_types, "hugefiles_size", "0");
num_blocks = parse_num_blocks2(t, fs->super->s_log_block_size);
free(t);
t = get_string_from_profile(fs_types, "hugefiles_align", "0");
align = parse_num_blocks2(t, fs->super->s_log_block_size);
free(t);
if (get_bool_from_profile(fs_types, "hugefiles_align_disk", 0)) {
part_offset = get_partition_start(device_name) /
(fs->blocksize / 512);
if (part_offset % EXT2FS_CLUSTER_RATIO(fs)) {
fprintf(stderr,
_("Partition offset of %llu (%uk) blocks "
"not compatible with cluster size %u.\n"),
part_offset, fs->blocksize,
EXT2_CLUSTER_SIZE(fs->super));
exit(1);
}
}
num_blocks = round_up_align(num_blocks, align, 0);
zero_hugefile = get_bool_from_profile(fs_types, "zero_hugefiles",
zero_hugefile);
t = get_string_from_profile(fs_types, "hugefiles_dir", "/");
retval = create_directory(fs, t, &dir);
free(t);
if (retval)
return retval;
fn_prefix = get_string_from_profile(fs_types, "hugefiles_name",
"hugefile");
idx_digits = get_int_from_profile(fs_types, "hugefiles_digits", 5);
d = int_log10(num_files) + 1;
if (idx_digits > d)
d = idx_digits;
dsize = strlen(fn_prefix) + d + 16;
fn_buf = malloc(dsize);
if (!fn_buf) {
free(fn_prefix);
return ENOMEM;
}
strcpy(fn_buf, fn_prefix);
fn_numbuf = fn_buf + strlen(fn_prefix);
free(fn_prefix);
fs_blocks = ext2fs_free_blocks_count(fs->super);
if (fs_blocks < num_slack + align)
return ENOSPC;
fs_blocks -= num_slack + align;
if (num_blocks && num_blocks > fs_blocks)
return ENOSPC;
if (num_blocks == 0 && num_files == 0)
num_files = 1;
if (num_files == 0 && num_blocks) {
num_files = fs_blocks / num_blocks;
fs_blocks -= (num_files / 16) + 1;
fs_blocks -= calc_overhead(fs, num_blocks) * num_files;
num_files = fs_blocks / num_blocks;
}
if (num_blocks == 0 && num_files > 1) {
num_blocks = fs_blocks / num_files;
fs_blocks -= (num_files / 16) + 1;
fs_blocks -= calc_overhead(fs, num_blocks) * num_files;
num_blocks = fs_blocks / num_files;
}
num_slack += (calc_overhead(fs, num_blocks ? num_blocks : fs_blocks) *
num_files);
num_slack += (num_files / 16) + 1; /* space for dir entries */
goal = get_start_block(fs, num_slack);
goal = round_up_align(goal, align, part_offset);
if ((num_blocks ? num_blocks : fs_blocks) >
(0x80000000UL / fs->blocksize))
ext2fs_set_feature_large_file(fs->super);
if (!quiet) {
if (zero_hugefile && verbose)
printf("%s", _("Huge files will be zero'ed\n"));
printf(_("Creating %lu huge file(s) "), num_files);
if (num_blocks)
printf(_("with %llu blocks each"), num_blocks);
fputs(": ", stdout);
}
for (i=0; i < num_files; i++) {
ext2_ino_t ino;
retval = mk_hugefile(fs, num_blocks, dir, i, &ino);
if (retval) {
com_err(program_name, retval,
_("while creating huge file %lu"), i);
goto errout;
}
}
if (!quiet)
fputs(_("done\n"), stdout);
errout:
free(fn_buf);
return retval;
}
/*
* This function creates a journal using direct I/O routines.
*/
static errcode_t write_journal_inode(ext2_filsys fs, ext2_ino_t journal_ino,
blk_t num_blocks, blk64_t goal, int flags)
{
char *buf;
errcode_t retval;
struct ext2_inode inode;
unsigned long long inode_size;
int falloc_flags = EXT2_FALLOCATE_FORCE_INIT;
blk64_t zblk;
if ((retval = ext2fs_create_journal_superblock(fs, num_blocks, flags,
&buf)))
return retval;
if ((retval = ext2fs_read_bitmaps(fs)))
goto out2;
if ((retval = ext2fs_read_inode(fs, journal_ino, &inode)))
goto out2;
if (inode.i_blocks > 0) {
retval = EEXIST;
goto out2;
}
if (goal == ~0ULL)
goal = get_midpoint_journal_block(fs);
if (ext2fs_has_feature_extents(fs->super))
inode.i_flags |= EXT4_EXTENTS_FL;
if (!(flags & EXT2_MKJOURNAL_LAZYINIT))
falloc_flags |= EXT2_FALLOCATE_ZERO_BLOCKS;
inode_size = (unsigned long long)fs->blocksize * num_blocks;
inode.i_mtime = inode.i_ctime = fs->now ? fs->now : time(0);
inode.i_links_count = 1;
inode.i_mode = LINUX_S_IFREG | 0600;
retval = ext2fs_inode_size_set(fs, &inode, inode_size);
if (retval)
goto out2;
retval = ext2fs_fallocate(fs, falloc_flags, journal_ino,
&inode, goal, 0, num_blocks);
if (retval)
goto out2;
if ((retval = ext2fs_write_new_inode(fs, journal_ino, &inode)))
goto out2;
retval = ext2fs_bmap2(fs, journal_ino, &inode, NULL, 0, 0, NULL, &zblk);
if (retval)
goto out2;
retval = io_channel_write_blk64(fs->io, zblk, 1, buf);
if (retval)
goto out2;
memcpy(fs->super->s_jnl_blocks, inode.i_block, EXT2_N_BLOCKS*4);
fs->super->s_jnl_blocks[15] = inode.i_size_high;
fs->super->s_jnl_blocks[16] = inode.i_size;
fs->super->s_jnl_backup_type = EXT3_JNL_BACKUP_BLOCKS;
ext2fs_mark_super_dirty(fs);
out2:
ext2fs_free_mem(&buf);
return retval;
}
