* %End-Header%
*/
+#ifndef _LARGEFILE_SOURCE
#define _LARGEFILE_SOURCE
+#endif
+#ifndef _LARGEFILE64_SOURCE
#define _LARGEFILE64_SOURCE
+#endif
#include "config.h"
#ifdef HAVE_GETOPT_H
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
+#include <libgen.h>
#include "e2p/e2p.h"
#include "../version.h"
-char *program_name, *device_name, *io_options;
+char *program_name;
+static char *device_name, *io_options;
static void usage (char *prog)
{
fprintf (stderr, _("Usage: %s [-d debug_flags] [-f] [-F] [-M] [-P] "
- "[-p] device [new_size]\n\n"), prog);
+ "[-p] device [-b|-s|new_size] [-z undo_file]\n\n"),
+ prog);
exit (1);
}
{
unsigned int group;
unsigned long long sum;
- unsigned int has_sb, prev_has_sb, num;
+ unsigned int has_sb, prev_has_sb = 0, num;
int i_stride, b_stride;
+ int flexbg_size = 1 << fs->super->s_log_groups_per_flex;
if (fs->stride)
return;
ext2fs_inode_bitmap_loc(fs, group - 1) -
fs->super->s_blocks_per_group;
if (b_stride != i_stride ||
- b_stride < 0)
+ b_stride < 0 ||
+ (flexbg_size > 1 && (group % flexbg_size == 0)))
goto next;
/* printf("group %d has stride %d\n", group, b_stride); */
#endif
}
+static void bigalloc_check(ext2_filsys fs, int force)
+{
+ if (!force && ext2fs_has_feature_bigalloc(fs->super)) {
+ fprintf(stderr, "%s", _("\nResizing bigalloc file systems has "
+ "not been fully tested. Proceed at\n"
+ "your own risk! Use the force option "
+ "if you want to go ahead anyway.\n\n"));
+ exit(1);
+ }
+}
+
+static int resize2fs_setup_tdb(const char *device_name, char *undo_file,
+ io_manager *io_ptr)
+{
+ errcode_t retval = ENOMEM;
+ char *tdb_dir = NULL, *tdb_file = NULL;
+ char *dev_name, *tmp_name;
+
+ /* (re)open a specific undo file */
+ if (undo_file && undo_file[0] != 0) {
+ retval = set_undo_io_backing_manager(*io_ptr);
+ if (retval)
+ goto err;
+ *io_ptr = undo_io_manager;
+ retval = set_undo_io_backup_file(undo_file);
+ if (retval)
+ goto err;
+ printf(_("Overwriting existing filesystem; this can be undone "
+ "using the command:\n"
+ " e2undo %s %s\n\n"),
+ undo_file, device_name);
+ return retval;
+ }
+
+ /*
+ * Configuration via a conf file would be
+ * nice
+ */
+ tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
+ if (!tdb_dir)
+ tdb_dir = "/var/lib/e2fsprogs";
+
+ if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
+ access(tdb_dir, W_OK))
+ return 0;
+
+ tmp_name = strdup(device_name);
+ if (!tmp_name)
+ goto errout;
+ dev_name = basename(tmp_name);
+ tdb_file = malloc(strlen(tdb_dir) + 11 + strlen(dev_name) + 7 + 1);
+ if (!tdb_file) {
+ free(tmp_name);
+ goto errout;
+ }
+ sprintf(tdb_file, "%s/resize2fs-%s.e2undo", tdb_dir, dev_name);
+ free(tmp_name);
+
+ if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
+ retval = errno;
+ com_err(program_name, retval,
+ _("while trying to delete %s"), tdb_file);
+ goto errout;
+ }
+
+ retval = set_undo_io_backing_manager(*io_ptr);
+ if (retval)
+ goto errout;
+ *io_ptr = undo_io_manager;
+ retval = set_undo_io_backup_file(tdb_file);
+ if (retval)
+ goto errout;
+ printf(_("Overwriting existing filesystem; this can be undone "
+ "using the command:\n"
+ " e2undo %s %s\n\n"), tdb_file, device_name);
+
+ free(tdb_file);
+ return 0;
+errout:
+ free(tdb_file);
+err:
+ com_err(program_name, retval, "%s",
+ _("while trying to setup undo file\n"));
+ return retval;
+}
+
int main (int argc, char ** argv)
{
errcode_t retval;
io_manager io_ptr;
char *new_size_str = 0;
int use_stride = -1;
-#ifdef HAVE_FSTAT64
- struct stat64 st_buf;
-#else
- struct stat st_buf;
-#endif
+ 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;
+ 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);
if (argc && *argv)
program_name = *argv;
- while ((c = getopt (argc, argv, "d:fFhMPpS:")) != EOF) {
+ while ((c = getopt(argc, argv, "d:fFhMPpS:bsz:")) != EOF) {
switch (c) {
case 'h':
usage(program_name);
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);
}
len = 2 * len;
}
- fd = ext2fs_open_file(device_name, O_RDWR);
+ fd = ext2fs_open_file(device_name, O_RDWR, 0);
if (fd < 0) {
com_err("open", errno, _("while opening %s"),
device_name);
exit(1);
}
-#ifdef HAVE_FSTAT64
- ret = fstat64(fd, &st_buf);
-#else
- ret = fstat(fd, &st_buf);
-#endif
+ ret = ext2fs_fstat(fd, &st_buf);
if (ret < 0) {
com_err("open", errno,
_("while getting stat information for %s"),
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 (_("Couldn't find valid filesystem superblock.\n"));
+ 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
exit(1);
}
- /*
- * XXXX The combination of flex_bg and !resize_inode causes
- * major problems for resize2fs, since when the group descriptors
- * grow in size this can potentially require multiple inode
- * tables to be moved aside to make room, and resize2fs chokes
- * rather badly in this scenario. It's a rare combination,
- * except when a filesystem is expanded more than a certain
- * size, so for now, we'll just prohibit that combination.
- * This is something we should fix eventually, though.
- */
- if ((fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_FLEX_BG) &&
- !(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
- com_err(program_name, 0, _("%s: The combination of flex_bg "
- "and\n\t!resize_inode features "
- "is not supported by resize2fs.\n"),
- device_name);
- exit(1);
- }
-
- min_size = calculate_minimum_resize_size(fs);
+ min_size = calculate_minimum_resize_size(fs, flags);
if (print_min_size) {
- if (!force && ((fs->super->s_state & EXT2_ERROR_FS) ||
- ((fs->super->s_state & EXT2_VALID_FS) == 0))) {
- fprintf(stderr,
- _("Please run 'e2fsck -f %s' first.\n\n"),
- device_name);
- exit(1);
- }
printf(_("Estimated minimum size of the filesystem: %llu\n"),
min_size);
exit(0);
* defaults and for making sure the new filesystem doesn't
* exceed the partition size.
*/
- retval = ext2fs_get_device_size2(device_name, fs->blocksize,
+ blocksize = fs->blocksize;
+ retval = ext2fs_get_device_size2(device_name, blocksize,
&max_size);
if (retval) {
- com_err(program_name, retval,
+ com_err(program_name, retval, "%s",
_("while trying to determine filesystem size"));
exit(1);
}
exit(1);
}
} else {
- /* Take down devices exactly 16T to 2^32-1 blocks */
- if (max_size == (1ULL << 32))
- max_size--;
- else if (max_size > (1ULL << 32)) {
- com_err(program_name, 0, _("New size too large to be "
- "expressed in 32 bits\n"));
- exit(1);
- }
new_size = max_size;
/* Round down to an even multiple of a pagesize */
- if (sys_page_size > fs->blocksize)
- new_size &= ~((sys_page_size / fs->blocksize)-1);
+ 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) {
}
if (use_stride >= 0) {
if (use_stride >= (int) fs->super->s_blocks_per_group) {
- com_err(program_name, 0,
+ com_err(program_name, 0, "%s",
_("Invalid stride length"));
exit(1);
}
* automatically extend it in a sparse fashion by writing the
* last requested block.
*/
- new_file_size = ((__u64) new_size) * fs->blocksize;
+ new_file_size = ((__u64) new_size) * blocksize;
if ((__u64) new_file_size >
(((__u64) 1) << (sizeof(st_buf.st_size)*8 - 1)) - 1)
fd = -1;
fprintf(stderr, _("The containing partition (or device)"
" is only %llu (%dk) blocks.\nYou requested a new size"
" of %llu blocks.\n\n"), max_size,
- fs->blocksize / 1024, new_size);
+ blocksize / 1024, new_size);
exit(1);
}
- if (new_size == ext2fs_blocks_count(fs->super)) {
- fprintf(stderr, _("The filesystem is already %llu blocks "
- "long. Nothing to do!\n\n"), new_size);
+ 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 {
- if (!force && ((fs->super->s_lastcheck < fs->super->s_mtime) ||
- (fs->super->s_state & EXT2_ERROR_FS) ||
- ((fs->super->s_state & EXT2_VALID_FS) == 0))) {
- fprintf(stderr,
- _("Please run 'e2fsck -f %s' first.\n\n"),
- device_name);
- exit(1);
- }
- printf(_("Resizing the filesystem on "
- "%s to %llu (%dk) blocks.\n"),
- device_name, new_size, fs->blocksize / 1024);
+ 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));
_("Please run 'e2fsck -fy %s' to fix the filesystem\n"
"after the aborted resize operation.\n"),
device_name);
- ext2fs_close(fs);
+ ext2fs_close_free(&fs);
exit(1);
}
- printf(_("The filesystem on %s is now %llu blocks long.\n\n"),
- device_name, new_size);
+ 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)) {
projects / thirdparty / e2fsprogs.git / blobdiff