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mke2fs: fix up topo complaints on regular files
[tools/e2fsprogs.git] / misc / tune2fs.c
index 2a8ac02..41a0638 100644 (file)
@@ -25,7 +25,7 @@
  * 94/03/06    - Added the checks interval from Uwe Ohse (uwe@tirka.gun.de)
  */
 
-#define _XOPEN_SOURCE /* for inclusion of strptime() */
+#define _XOPEN_SOURCE 600 /* for inclusion of strptime() */
 #define _BSD_SOURCE /* for inclusion of strcasecmp() */
 #include <fcntl.h>
 #include <grp.h>
@@ -37,11 +37,15 @@ extern int optind;
 #endif
 #include <pwd.h>
 #include <stdio.h>
+#ifdef HAVE_STDLIB_H
 #include <stdlib.h>
+#endif
 #include <string.h>
 #include <time.h>
 #include <unistd.h>
 #include <sys/types.h>
+#include <libgen.h>
+#include <limits.h>
 
 #include "ext2fs/ext2_fs.h"
 #include "ext2fs/ext2fs.h"
@@ -55,49 +59,93 @@ extern int optind;
 #include "../version.h"
 #include "nls-enable.h"
 
-const char * program_name = "tune2fs";
-char * device_name;
-char * new_label, *new_last_mounted, *new_UUID;
-char * io_options;
+const char *program_name = "tune2fs";
+char *device_name;
+char *new_label, *new_last_mounted, *new_UUID;
+char *io_options;
 static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag;
 static int m_flag, M_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag;
+static int I_flag;
 static time_t last_check_time;
 static int print_label;
 static int max_mount_count, mount_count, mount_flags;
-static unsigned long interval, reserved_ratio, reserved_blocks;
+static unsigned long interval, reserved_blocks;
+static double reserved_ratio;
 static unsigned long resgid, resuid;
 static unsigned short errors;
 static int open_flag;
 static char *features_cmd;
 static char *mntopts_cmd;
+static int stride, stripe_width;
+static int stride_set, stripe_width_set;
+static char *extended_cmd;
+static unsigned long new_inode_size;
 
 int journal_size, journal_flags;
 char *journal_device;
 
+static struct list_head blk_move_list;
+
+struct blk_move {
+       struct list_head list;
+       blk_t old_loc;
+       blk_t new_loc;
+};
+
+
 static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");
 
+#ifdef CONFIG_BUILD_FINDFS
 void do_findfs(int argc, char **argv);
+#endif
 
 static void usage(void)
 {
        fprintf(stderr,
-               _("Usage: %s [-c max-mounts-count] [-e errors-behavior] "
+               _("Usage: %s [-c max_mounts_count] [-e errors_behavior] "
                  "[-g group]\n"
-                 "\t[-i interval[d|m|w]] [-j] [-J journal-options]\n"
-                 "\t[-l] [-s sparse-flag] [-m reserved-blocks-percent]\n"
-                 "\t[-o [^]mount-options[,...]] [-r reserved-blocks-count]\n"
-                 "\t[-u user] [-C mount-count] [-L volume-label] "
-                 "[-M last-mounted-dir]\n"
-                 "\t[-O [^]feature[,...]] [-T last-check-time] [-U UUID]"
-                 " device\n"), program_name);
-       exit (1);
+                 "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
+                 "\t[-m reserved_blocks_percent] "
+                 "[-o [^]mount_options[,...]] \n"
+                 "\t[-r reserved_blocks_count] [-u user] [-C mount_count] "
+                 "[-L volume_label]\n"
+                 "\t[-M last_mounted_dir] [-O [^]feature[,...]]\n"
+                 "\t[-E extended-option[,...]] [-T last_check_time] "
+                 "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name);
+       exit(1);
 }
 
 static __u32 ok_features[3] = {
+       /* Compat */
+       EXT3_FEATURE_COMPAT_HAS_JOURNAL |
+               EXT2_FEATURE_COMPAT_DIR_INDEX,
+       /* Incompat */
+       EXT2_FEATURE_INCOMPAT_FILETYPE |
+               EXT3_FEATURE_INCOMPAT_EXTENTS |
+               EXT4_FEATURE_INCOMPAT_FLEX_BG,
+       /* R/O compat */
+       EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
+               EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
+               EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
+               EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
+               EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
+               EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
+};
+
+static __u32 clear_ok_features[3] = {
+       /* Compat */
        EXT3_FEATURE_COMPAT_HAS_JOURNAL |
-               EXT2_FEATURE_COMPAT_DIR_INDEX,  /* Compat */
-       EXT2_FEATURE_INCOMPAT_FILETYPE,         /* Incompat */
-       EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER     /* R/O compat */
+               EXT2_FEATURE_COMPAT_RESIZE_INODE |
+               EXT2_FEATURE_COMPAT_DIR_INDEX,
+       /* Incompat */
+       EXT2_FEATURE_INCOMPAT_FILETYPE |
+               EXT4_FEATURE_INCOMPAT_FLEX_BG,
+       /* R/O compat */
+       EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
+               EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
+               EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
+               EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
+               EXT4_FEATURE_RO_COMPAT_GDT_CSUM
 };
 
 /*
@@ -128,11 +176,12 @@ static void remove_journal_device(ext2_filsys fs)
        }
 
 #ifdef CONFIG_TESTIO_DEBUG
-       io_ptr = test_io_manager;
-       test_io_backing_manager = unix_io_manager;
-#else
-       io_ptr = unix_io_manager;
+       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;
        retval = ext2fs_open(journal_path, EXT2_FLAG_RW|
                             EXT2_FLAG_JOURNAL_DEV_OK, 0,
                             fs->blocksize, io_ptr, &jfs);
@@ -163,19 +212,19 @@ static void remove_journal_device(ext2_filsys fs)
 
        /* Find the filesystem UUID */
        nr_users = ntohl(jsb->s_nr_users);
-       for (i=0; i < nr_users; i++) {
+       for (i = 0; i < nr_users; i++) {
                if (memcmp(fs->super->s_uuid,
                           &jsb->s_users[i*16], 16) == 0)
                        break;
        }
        if (i >= nr_users) {
-               fputs(_("Filesystem's UUID not found on journal device.\n"), 
+               fputs(_("Filesystem's UUID not found on journal device.\n"),
                      stderr);
                commit_remove_journal = 1;
                goto no_valid_journal;
        }
        nr_users--;
-       for (i=0; i < nr_users; i++)
+       for (i = 0; i < nr_users; i++)
                memcpy(&jsb->s_users[i*16], &jsb->s_users[(i+1)*16], 16);
        jsb->s_nr_users = htonl(nr_users);
 
@@ -202,16 +251,17 @@ no_valid_journal:
 
 /* Helper function for remove_journal_inode */
 static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
-                              int blockcnt EXT2FS_ATTR((unused)), 
+                              int blockcnt EXT2FS_ATTR((unused)),
                               void *private EXT2FS_ATTR((unused)))
 {
        blk_t   block;
        int     group;
 
        block = *blocknr;
-       ext2fs_unmark_block_bitmap(fs->block_map,block);
+       ext2fs_unmark_block_bitmap(fs->block_map, block);
        group = ext2fs_group_of_blk(fs, block);
        fs->group_desc[group].bg_free_blocks_count++;
+       ext2fs_group_desc_csum_set(fs, group);
        fs->super->s_free_blocks_count++;
        return 0;
 }
@@ -224,7 +274,7 @@ static void remove_journal_inode(ext2_filsys fs)
        struct ext2_inode       inode;
        errcode_t               retval;
        ino_t                   ino = fs->super->s_journal_inum;
-       
+
        retval = ext2fs_read_inode(fs, ino,  &inode);
        if (retval) {
                com_err(program_name, retval,
@@ -238,7 +288,8 @@ static void remove_journal_inode(ext2_filsys fs)
                                _("while reading bitmaps"));
                        exit(1);
                }
-               retval = ext2fs_block_iterate(fs, ino, 0, NULL,
+               retval = ext2fs_block_iterate(fs, ino,
+                                             BLOCK_FLAG_READ_ONLY, NULL,
                                              release_blocks_proc, NULL);
                if (retval) {
                        com_err(program_name, retval,
@@ -265,7 +316,7 @@ static void remove_journal_inode(ext2_filsys fs)
  */
 static void update_mntopts(ext2_filsys fs, char *mntopts)
 {
-       struct ext2_super_block *sb= fs->super;
+       struct ext2_super_block *sb = fs->super;
 
        if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) {
                fprintf(stderr, _("Invalid mount option set: %s\n"),
@@ -280,41 +331,46 @@ static void update_mntopts(ext2_filsys fs, char *mntopts)
  */
 static void update_feature_set(ext2_filsys fs, char *features)
 {
-       int sparse, old_sparse, filetype, old_filetype;
-       int journal, old_journal, dxdir, old_dxdir;
-       struct ext2_super_block *sb= fs->super;
-       __u32   old_compat, old_incompat, old_ro_compat;
-
-       old_compat = sb->s_feature_compat;
-       old_ro_compat = sb->s_feature_ro_compat;
-       old_incompat = sb->s_feature_incompat;
-
-       old_sparse = sb->s_feature_ro_compat &
-               EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
-       old_filetype = sb->s_feature_incompat &
-               EXT2_FEATURE_INCOMPAT_FILETYPE;
-       old_journal = sb->s_feature_compat &
-               EXT3_FEATURE_COMPAT_HAS_JOURNAL;
-       old_dxdir = sb->s_feature_compat &
-               EXT2_FEATURE_COMPAT_DIR_INDEX;
-       if (e2p_edit_feature(features, &sb->s_feature_compat,
-                            ok_features)) {
-               fprintf(stderr, _("Invalid filesystem option set: %s\n"),
-                       features);
+       struct ext2_super_block *sb = fs->super;
+       __u32           old_features[3];
+       int             type_err;
+       unsigned int    mask_err;
+
+#define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
+                               ((&sb->s_feature_compat)[(type)] & (mask)))
+#define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
+                                !((&sb->s_feature_compat)[(type)] & (mask)))
+#define FEATURE_CHANGED(type, mask) ((mask) & \
+                    (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
+
+       old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat;
+       old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat;
+       old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat;
+
+       if (e2p_edit_feature2(features, &sb->s_feature_compat,
+                             ok_features, clear_ok_features,
+                             &type_err, &mask_err)) {
+               if (!mask_err)
+                       fprintf(stderr,
+                               _("Invalid filesystem option set: %s\n"),
+                               features);
+               else if (type_err & E2P_FEATURE_NEGATE_FLAG)
+                       fprintf(stderr, _("Clearing filesystem feature '%s' "
+                                         "not supported.\n"),
+                               e2p_feature2string(type_err &
+                                                  E2P_FEATURE_TYPE_MASK,
+                                                  mask_err));
+               else
+                       fprintf(stderr, _("Setting filesystem feature '%s' "
+                                         "not supported.\n"),
+                               e2p_feature2string(type_err, mask_err));
                exit(1);
        }
-       sparse = sb->s_feature_ro_compat &
-               EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
-       filetype = sb->s_feature_incompat &
-               EXT2_FEATURE_INCOMPAT_FILETYPE;
-       journal = sb->s_feature_compat &
-               EXT3_FEATURE_COMPAT_HAS_JOURNAL;
-       dxdir = sb->s_feature_compat &
-               EXT2_FEATURE_COMPAT_DIR_INDEX;
-       if (old_journal && !journal) {
+
+       if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
                if ((mount_flags & EXT2_MF_MOUNTED) &&
                    !(mount_flags & EXT2_MF_READONLY)) {
-                       fputs(_("The has_journal flag may only be "
+                       fputs(_("The has_journal feature may only be "
                                "cleared when the filesystem is\n"
                                "unmounted or mounted "
                                "read-only.\n"), stderr);
@@ -334,36 +390,72 @@ static void update_feature_set(ext2_filsys fs, char *features)
                        remove_journal_device(fs);
                }
        }
-       if (journal && !old_journal) {
+
+       if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
                /*
                 * If adding a journal flag, let the create journal
-                * code below handle creating setting the flag and
-                * creating the journal.  We supply a default size if
-                * necessary.
+                * code below handle setting the flag and creating the
+                * journal.  We supply a default size if necessary.
                 */
                if (!journal_size)
                        journal_size = -1;
                sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
        }
-       if (dxdir && !old_dxdir) {
+
+       if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) {
                if (!sb->s_def_hash_version)
-                       sb->s_def_hash_version = EXT2_HASH_TEA;
+                       sb->s_def_hash_version = EXT2_HASH_HALF_MD4;
                if (uuid_is_null((unsigned char *) sb->s_hash_seed))
                        uuid_generate((unsigned char *) sb->s_hash_seed);
        }
 
+       if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
+               if (ext2fs_check_desc(fs)) {
+                       fputs(_("Clearing the flex_bg flag would "
+                               "cause the the filesystem to be\n"
+                               "inconsistent.\n"), stderr);
+                       exit(1);
+               }
+       }
+
+       if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
+                           EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
+               if ((mount_flags & EXT2_MF_MOUNTED) &&
+                   !(mount_flags & EXT2_MF_READONLY)) {
+                       fputs(_("The huge_file feature may only be "
+                               "cleared when the filesystem is\n"
+                               "unmounted or mounted "
+                               "read-only.\n"), stderr);
+                       exit(1);
+               }
+       }
+
        if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
            (sb->s_feature_compat || sb->s_feature_ro_compat ||
             sb->s_feature_incompat))
                ext2fs_update_dynamic_rev(fs);
-       if ((sparse != old_sparse) ||
-           (filetype != old_filetype)) {
+
+       if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
+                           EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
+           FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
+                           EXT4_FEATURE_RO_COMPAT_GDT_CSUM) ||
+           FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
+                       EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
+           FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
+                           EXT2_FEATURE_INCOMPAT_FILETYPE) ||
+           FEATURE_CHANGED(E2P_FEATURE_COMPAT,
+                           EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
+           FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
+                       EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) {
                sb->s_state &= ~EXT2_VALID_FS;
                printf("\n%s\n", _(please_fsck));
+               if (mount_flags & EXT2_MF_READONLY)
+                       printf(_("(and reboot afterwards!)\n"));
        }
-       if ((old_compat != sb->s_feature_compat) ||
-           (old_ro_compat != sb->s_feature_ro_compat) ||
-           (old_incompat != sb->s_feature_incompat))
+
+       if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) ||
+           (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) ||
+           (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat))
                ext2fs_mark_super_dirty(fs);
 }
 
@@ -386,11 +478,12 @@ static void add_journal(ext2_filsys fs)
                check_plausibility(journal_device);
                check_mount(journal_device, 0, _("journal"));
 #ifdef CONFIG_TESTIO_DEBUG
-               io_ptr = test_io_manager;
-               test_io_backing_manager = unix_io_manager;
-#else
-               io_ptr = unix_io_manager;
+               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;
                retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
                                     EXT2_FLAG_JOURNAL_DEV_OK, 0,
                                     fs->blocksize, io_ptr, &jfs);
@@ -407,9 +500,9 @@ static void add_journal(ext2_filsys fs)
                retval = ext2fs_add_journal_device(fs, jfs);
                ext2fs_close(jfs);
                if (retval) {
-                       com_err (program_name, retval,
-                                _("while adding filesystem to journal on %s"),
-                                journal_device);
+                       com_err(program_name, retval,
+                               _("while adding filesystem to journal on %s"),
+                               journal_device);
                        goto err;
                }
                fputs(_("done\n"), stdout);
@@ -438,8 +531,7 @@ static void add_journal(ext2_filsys fs)
        return;
 
 err:
-       if (journal_device)
-               free(journal_device);
+       free(journal_device);
        exit(1);
 }
 
@@ -455,15 +547,16 @@ static void parse_e2label_options(int argc, char ** argv)
                *io_options++ = 0;
        device_name = blkid_get_devname(NULL, argv[1], NULL);
        if (!device_name) {
-               com_err("e2label", 0, _("Unable to resolve '%s'"), 
+               com_err("e2label", 0, _("Unable to resolve '%s'"),
                        argv[1]);
                exit(1);
        }
+       open_flag = EXT2_FLAG_JOURNAL_DEV_OK;
        if (argc == 3) {
-               open_flag = EXT2_FLAG_RW | EXT2_FLAG_JOURNAL_DEV_OK;
+               open_flag |= EXT2_FLAG_RW;
                L_flag = 1;
                new_label = argv[2];
-       } else 
+       } else
                print_label++;
 }
 
@@ -476,9 +569,9 @@ static time_t parse_time(char *str)
        }
        memset(&ts, 0, sizeof(ts));
 #ifdef HAVE_STRPTIME
-       strptime(optarg, "%Y%m%d%H%M%S", &ts);
+       strptime(str, "%Y%m%d%H%M%S", &ts);
 #else
-       sscanf(optarg, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
+       sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
               &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
        ts.tm_year -= 1900;
        ts.tm_mon -= 1;
@@ -493,192 +586,199 @@ static time_t parse_time(char *str)
                        str);
                usage();
        }
+       ts.tm_isdst = -1;
        return (mktime(&ts));
 }
 
 static void parse_tune2fs_options(int argc, char **argv)
 {
        int c;
-       char * tmp;
-       struct group * gr;
-       struct passwd * pw;
+       char *tmp;
+       struct group *gr;
+       struct passwd *pw;
+
+       open_flag = 0;
 
        printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
-       while ((c = getopt(argc, argv, "c:e:fg:i:jlm:o:r:s:u:C:J:L:M:O:T:U:")) != EOF)
-               switch (c)
-               {
-                       case 'c':
-                               max_mount_count = strtol (optarg, &tmp, 0);
-                               if (*tmp || max_mount_count > 16000) {
-                                       com_err (program_name, 0,
-                                                _("bad mounts count - %s"),
-                                                optarg);
-                                       usage();
-                               }
-                               if (max_mount_count == 0)
-                                       max_mount_count = -1;
-                               c_flag = 1;
-                               open_flag = EXT2_FLAG_RW;
-                               break;
-                       case 'C':
-                               mount_count = strtoul (optarg, &tmp, 0);
-                               if (*tmp || mount_count > 16000) {
-                                       com_err (program_name, 0,
-                                                _("bad mounts count - %s"),
-                                                optarg);
-                                       usage();
-                               }
-                               C_flag = 1;
-                               open_flag = EXT2_FLAG_RW;
-                               break;
-                       case 'e':
-                               if (strcmp (optarg, "continue") == 0)
-                                       errors = EXT2_ERRORS_CONTINUE;
-                               else if (strcmp (optarg, "remount-ro") == 0)
-                                       errors = EXT2_ERRORS_RO;
-                               else if (strcmp (optarg, "panic") == 0)
-                                       errors = EXT2_ERRORS_PANIC;
+       while ((c = getopt(argc, argv, "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:")) != EOF)
+               switch (c) {
+               case 'c':
+                       max_mount_count = strtol(optarg, &tmp, 0);
+                       if (*tmp || max_mount_count > 16000) {
+                               com_err(program_name, 0,
+                                       _("bad mounts count - %s"),
+                                       optarg);
+                               usage();
+                       }
+                       if (max_mount_count == 0)
+                               max_mount_count = -1;
+                       c_flag = 1;
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 'C':
+                       mount_count = strtoul(optarg, &tmp, 0);
+                       if (*tmp || mount_count > 16000) {
+                               com_err(program_name, 0,
+                                       _("bad mounts count - %s"),
+                                       optarg);
+                               usage();
+                       }
+                       C_flag = 1;
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 'e':
+                       if (strcmp(optarg, "continue") == 0)
+                               errors = EXT2_ERRORS_CONTINUE;
+                       else if (strcmp(optarg, "remount-ro") == 0)
+                               errors = EXT2_ERRORS_RO;
+                       else if (strcmp(optarg, "panic") == 0)
+                               errors = EXT2_ERRORS_PANIC;
+                       else {
+                               com_err(program_name, 0,
+                                       _("bad error behavior - %s"),
+                                       optarg);
+                               usage();
+                       }
+                       e_flag = 1;
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 'E':
+                       extended_cmd = optarg;
+                       open_flag |= EXT2_FLAG_RW;
+                       break;
+               case 'f': /* Force */
+                       f_flag = 1;
+                       break;
+               case 'g':
+                       resgid = strtoul(optarg, &tmp, 0);
+                       if (*tmp) {
+                               gr = getgrnam(optarg);
+                               if (gr == NULL)
+                                       tmp = optarg;
                                else {
-                                       com_err (program_name, 0,
-                                                _("bad error behavior - %s"),
-                                                optarg);
-                                       usage();
-                               }
-                               e_flag = 1;
-                               open_flag = EXT2_FLAG_RW;
-                               break;
-                       case 'f': /* Force */
-                               f_flag = 1;
-                               break;
-                       case 'g':
-                               resgid = strtoul (optarg, &tmp, 0);
-                               if (*tmp) {
-                                       gr = getgrnam (optarg);
-                                       if (gr == NULL)
-                                               tmp = optarg;
-                                       else {
-                                               resgid = gr->gr_gid;
-                                               *tmp =0;
-                                       }
-                               }
-                               if (*tmp) {
-                                       com_err (program_name, 0,
-                                                _("bad gid/group name - %s"),
-                                                optarg);
-                                       usage();
+                                       resgid = gr->gr_gid;
+                                       *tmp = 0;
                                }
-                               g_flag = 1;
-                               open_flag = EXT2_FLAG_RW;
+                       }
+                       if (*tmp) {
+                               com_err(program_name, 0,
+                                       _("bad gid/group name - %s"),
+                                       optarg);
+                               usage();
+                       }
+                       g_flag = 1;
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 'i':
+                       interval = strtoul(optarg, &tmp, 0);
+                       switch (*tmp) {
+                       case 's':
+                               tmp++;
                                break;
-                       case 'i':
-                               interval = strtoul (optarg, &tmp, 0);
-                               switch (*tmp) {
-                               case 's':
+                       case '\0':
+                       case 'd':
+                       case 'D': /* days */
+                               interval *= 86400;
+                               if (*tmp != '\0')
                                        tmp++;
-                                       break;
-                               case '\0':
-                               case 'd':
-                               case 'D': /* days */
-                                       interval *= 86400;
-                                       if (*tmp != '\0')
-                                               tmp++;
-                                       break;
-                               case 'm':
-                               case 'M': /* months! */
-                                       interval *= 86400 * 30;
-                                       tmp++;
-                                       break;
-                               case 'w':
-                               case 'W': /* weeks */
-                                       interval *= 86400 * 7;
-                                       tmp++;
-                                       break;
-                               }
-                               if (*tmp || interval > (365 * 86400)) {
-                                       com_err (program_name, 0,
-                                               _("bad interval - %s"), optarg);
-                                       usage();
-                               }
-                               i_flag = 1;
-                               open_flag = EXT2_FLAG_RW;
-                               break;
-                       case 'j':
-                               if (!journal_size)
-                                       journal_size = -1;
-                               open_flag = EXT2_FLAG_RW;
-                               break;
-                       case 'J':
-                               parse_journal_opts(optarg);
-                               open_flag = EXT2_FLAG_RW;
-                               break;
-                       case 'l':
-                               l_flag = 1;
-                               break;
-                       case 'L':
-                               new_label = optarg;
-                               L_flag = 1;
-                               open_flag = EXT2_FLAG_RW |
-                                       EXT2_FLAG_JOURNAL_DEV_OK;
                                break;
                        case 'm':
-                               reserved_ratio = strtoul (optarg, &tmp, 0);
-                               if (*tmp || reserved_ratio > 50) {
-                                       com_err (program_name, 0,
-                                                _("bad reserved block ratio - %s"),
-                                                optarg);
-                                       usage();
-                               }
-                               m_flag = 1;
-                               open_flag = EXT2_FLAG_RW;
-                               break;
-                       case 'M':
-                               new_last_mounted = optarg;
-                               M_flag = 1;
-                               open_flag = EXT2_FLAG_RW;
-                               break;
-                       case 'o':
-                               if (mntopts_cmd) {
-                                       com_err (program_name, 0,
-                                        _("-o may only be specified once"));
-                                       usage();
-                               }
-                               mntopts_cmd = optarg;
-                               open_flag = EXT2_FLAG_RW;
-                               break;
-                               
-                       case 'O':
-                               if (features_cmd) {
-                                       com_err (program_name, 0,
-                                        _("-O may only be specified once"));
-                                       usage();
-                               }
-                               features_cmd = optarg;
-                               open_flag = EXT2_FLAG_RW;
-                               break;
-                       case 'r':
-                               reserved_blocks = strtoul (optarg, &tmp, 0);
-                               if (*tmp) {
-                                       com_err (program_name, 0,
-                                                _("bad reserved blocks count - %s"),
-                                                optarg);
-                                       usage();
-                               }
-                               r_flag = 1;
-                               open_flag = EXT2_FLAG_RW;
-                               break;
-                       case 's':
-                               s_flag = atoi(optarg);
-                               open_flag = EXT2_FLAG_RW;
+                       case 'M': /* months! */
+                               interval *= 86400 * 30;
+                               tmp++;
                                break;
-                       case 'T':
-                               T_flag = 1;
-                               last_check_time = parse_time(optarg);
-                               open_flag = EXT2_FLAG_RW;
+                       case 'w':
+                       case 'W': /* weeks */
+                               interval *= 86400 * 7;
+                               tmp++;
                                break;
-                       case 'u':
-                               resuid = strtoul (optarg, &tmp, 0);
+                       }
+                       if (*tmp) {
+                               com_err(program_name, 0,
+                                       _("bad interval - %s"), optarg);
+                               usage();
+                       }
+                       i_flag = 1;
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 'j':
+                       if (!journal_size)
+                               journal_size = -1;
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 'J':
+                       parse_journal_opts(optarg);
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 'l':
+                       l_flag = 1;
+                       break;
+               case 'L':
+                       new_label = optarg;
+                       L_flag = 1;
+                       open_flag |= EXT2_FLAG_RW |
+                               EXT2_FLAG_JOURNAL_DEV_OK;
+                       break;
+               case 'm':
+                       reserved_ratio = strtod(optarg, &tmp);
+                       if (*tmp || reserved_ratio > 50 ||
+                           reserved_ratio < 0) {
+                               com_err(program_name, 0,
+                                       _("bad reserved block ratio - %s"),
+                                       optarg);
+                               usage();
+                       }
+                       m_flag = 1;
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 'M':
+                       new_last_mounted = optarg;
+                       M_flag = 1;
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 'o':
+                       if (mntopts_cmd) {
+                               com_err(program_name, 0,
+                                       _("-o may only be specified once"));
+                               usage();
+                       }
+                       mntopts_cmd = optarg;
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+                       
+               case 'O':
+                       if (features_cmd) {
+                               com_err(program_name, 0,
+                                       _("-O may only be specified once"));
+                               usage();
+                       }
+                       features_cmd = optarg;
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 'r':
+                       reserved_blocks = strtoul(optarg, &tmp, 0);
+                       if (*tmp) {
+                               com_err(program_name, 0,
+                                       _("bad reserved blocks count - %s"),
+                                       optarg);
+                               usage();
+                       }
+                       r_flag = 1;
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 's': /* Deprecated */
+                       s_flag = atoi(optarg);
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 'T':
+                       T_flag = 1;
+                       last_check_time = parse_time(optarg);
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+               case 'u':
+                               resuid = strtoul(optarg, &tmp, 0);
                                if (*tmp) {
-                                       pw = getpwnam (optarg);
+                                       pw = getpwnam(optarg);
                                        if (pw == NULL)
                                                tmp = optarg;
                                        else {
@@ -687,22 +787,41 @@ static void parse_tune2fs_options(int argc, char **argv)
                                        }
                                }
                                if (*tmp) {
-                                       com_err (program_name, 0,
-                                                _("bad uid/user name - %s"),
-                                                optarg);
+                                       com_err(program_name, 0,
+                                               _("bad uid/user name - %s"),
+                                               optarg);
                                        usage();
                                }
                                u_flag = 1;
                                open_flag = EXT2_FLAG_RW;
                                break;
-                       case 'U':
-                               new_UUID = optarg;
-                               U_flag = 1;
-                               open_flag = EXT2_FLAG_RW |
-                                       EXT2_FLAG_JOURNAL_DEV_OK;
-                               break;
-                       default:
+               case 'U':
+                       new_UUID = optarg;
+                       U_flag = 1;
+                       open_flag = EXT2_FLAG_RW |
+                               EXT2_FLAG_JOURNAL_DEV_OK;
+                       break;
+               case 'I':
+                       new_inode_size = strtoul(optarg, &tmp, 0);
+                       if (*tmp) {
+                               com_err(program_name, 0,
+                                       _("bad inode size - %s"),
+                                       optarg);
                                usage();
+                       }
+                       if (!((new_inode_size &
+                              (new_inode_size - 1)) == 0)) {
+                               com_err(program_name, 0,
+                                       _("Inode size must be a "
+                                         "power of two- %s"),
+                                       optarg);
+                               usage();
+                       }
+                       open_flag = EXT2_FLAG_RW;
+                       I_flag = 1;
+                       break;
+               default:
+                       usage();
                }
        if (optind < argc - 1 || optind == argc)
                usage();
@@ -713,12 +832,13 @@ static void parse_tune2fs_options(int argc, char **argv)
                *io_options++ = 0;
        device_name = blkid_get_devname(NULL, argv[optind], NULL);
        if (!device_name) {
-               com_err("tune2fs", 0, _("Unable to resolve '%s'"), 
+               com_err("tune2fs", 0, _("Unable to resolve '%s'"),
                        argv[optind]);
                exit(1);
        }
 }
 
+#ifdef CONFIG_BUILD_FINDFS
 void do_findfs(int argc, char **argv)
 {
        char    *dev;
@@ -730,21 +850,693 @@ void do_findfs(int argc, char **argv)
        }
        dev = blkid_get_devname(NULL, argv[1], NULL);
        if (!dev) {
-               com_err("findfs", 0, _("Unable to resolve '%s'"), 
+               com_err("findfs", 0, _("Unable to resolve '%s'"),
                        argv[1]);
                exit(1);
        }
        puts(dev);
        exit(0);
 }
+#endif
+
+static void parse_extended_opts(ext2_filsys fs, const char *opts)
+{
+       char    *buf, *token, *next, *p, *arg;
+       int     len, hash_alg;
+       int     r_usage = 0;
+
+       len = strlen(opts);
+       buf = malloc(len+1);
+       if (!buf) {
+               fprintf(stderr,
+                       _("Couldn't allocate memory to parse options!\n"));
+               exit(1);
+       }
+       strcpy(buf, opts);
+       for (token = buf; token && *token; token = next) {
+               p = strchr(token, ',');
+               next = 0;
+               if (p) {
+                       *p = 0;
+                       next = p+1;
+               }
+               arg = strchr(token, '=');
+               if (arg) {
+                       *arg = 0;
+                       arg++;
+               }
+               if (!strcmp(token, "test_fs")) {
+                       fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
+                       printf("Setting test filesystem flag\n");
+                       ext2fs_mark_super_dirty(fs);
+               } else if (!strcmp(token, "^test_fs")) {
+                       fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
+                       printf("Clearing test filesystem flag\n");
+                       ext2fs_mark_super_dirty(fs);
+               } else if (strcmp(token, "stride") == 0) {
+                       if (!arg) {
+                               r_usage++;
+                               continue;
+                       }
+                       stride = strtoul(arg, &p, 0);
+                       if (*p || (stride == 0)) {
+                               fprintf(stderr,
+                                      _("Invalid RAID stride: %s\n"),
+                                       arg);
+                               r_usage++;
+                               continue;
+                       }
+                       stride_set = 1;
+               } else if (strcmp(token, "stripe-width") == 0 ||
+                          strcmp(token, "stripe_width") == 0) {
+                       if (!arg) {
+                               r_usage++;
+                               continue;
+                       }
+                       stripe_width = strtoul(arg, &p, 0);
+                       if (*p || (stripe_width == 0)) {
+                               fprintf(stderr,
+                                       _("Invalid RAID stripe-width: %s\n"),
+                                       arg);
+                               r_usage++;
+                               continue;
+                       }
+                       stripe_width_set = 1;
+               } else if (strcmp(token, "hash_alg") == 0 ||
+                          strcmp(token, "hash-alg") == 0) {
+                       if (!arg) {
+                               r_usage++;
+                               continue;
+                       }
+                       hash_alg = e2p_string2hash(arg);
+                       if (hash_alg < 0) {
+                               fprintf(stderr,
+                                       _("Invalid hash algorithm: %s\n"),
+                                       arg);
+                               r_usage++;
+                               continue;
+                       }
+                       fs->super->s_def_hash_version = hash_alg;
+                       printf(_("Setting default hash algorithm "
+                                "to %s (%d)\n"),
+                              arg, hash_alg);
+                       ext2fs_mark_super_dirty(fs);
+               } else
+                       r_usage++;
+       }
+       if (r_usage) {
+               fprintf(stderr, _("\nBad options specified.\n\n"
+                       "Extended options are separated by commas, "
+                       "and may take an argument which\n"
+                       "\tis set off by an equals ('=') sign.\n\n"
+                       "Valid extended options are:\n"
+                       "\tstride=<RAID per-disk chunk size in blocks>\n"
+                       "\tstripe_width=<RAID stride*data disks in blocks>\n"
+                       "\thash_alg=<hash algorithm>\n"
+                       "\ttest_fs\n"
+                       "\t^test_fs\n"));
+               free(buf);
+               exit(1);
+       }
+       free(buf);
+}
+
+/*
+ * Fill in the block bitmap bmap with the information regarding the
+ * blocks to be moved
+ */
+static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp,
+                           ext2fs_block_bitmap bmap)
+{
+       dgrp_t i;
+       int retval;
+       ext2_badblocks_list bb_list = 0;
+       blk_t j, needed_blocks = 0;
+       blk_t start_blk, end_blk;
+
+       retval = ext2fs_read_bb_inode(fs, &bb_list);
+       if (retval)
+               return retval;
+
+       for (i = 0; i < fs->group_desc_count; i++) {
+               start_blk = fs->group_desc[i].bg_inode_table +
+                                       fs->inode_blocks_per_group;
+
+               end_blk = fs->group_desc[i].bg_inode_table +
+                                       new_ino_blks_per_grp;
+
+               for (j = start_blk; j < end_blk; j++) {
+                       if (ext2fs_test_block_bitmap(fs->block_map, j)) {
+                               /*
+                                * IF the block is a bad block we fail
+                                */
+                               if (ext2fs_badblocks_list_test(bb_list, j)) {
+                                       ext2fs_badblocks_list_free(bb_list);
+                                       return ENOSPC;
+                               }
+
+                               ext2fs_mark_block_bitmap(bmap, j);
+                       } else {
+                               /*
+                                * We are going to use this block for
+                                * inode table. So mark them used.
+                                */
+                               ext2fs_mark_block_bitmap(fs->block_map, j);
+                       }
+               }
+               needed_blocks += end_blk - start_blk;
+       }
+
+       ext2fs_badblocks_list_free(bb_list);
+       if (needed_blocks > fs->super->s_free_blocks_count)
+               return ENOSPC;
+
+       return 0;
+}
+
+static int ext2fs_is_meta_block(ext2_filsys fs, blk_t blk)
+{
+       dgrp_t group;
+       group = ext2fs_group_of_blk(fs, blk);
+       if (fs->group_desc[group].bg_block_bitmap == blk)
+               return 1;
+       if (fs->group_desc[group].bg_inode_bitmap == blk)
+               return 1;
+       return 0;
+}
 
+static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk_t blk)
+{
+       blk_t start_blk, end_blk;
+       start_blk = fs->super->s_first_data_block +
+                       EXT2_BLOCKS_PER_GROUP(fs->super) * group;
+       /*
+        * We cannot get new block beyond end_blk for for the last block group
+        * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group
+        */
+       end_blk   = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super);
+       if (blk >= start_blk && blk <= end_blk)
+               return 1;
+       return 0;
+}
 
-int main (int argc, char ** argv)
+static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
+{
+
+       char *buf;
+       dgrp_t group;
+       errcode_t retval;
+       int meta_data = 0;
+       blk_t blk, new_blk, goal;
+       struct blk_move *bmv;
+
+       retval = ext2fs_get_mem(fs->blocksize, &buf);
+       if (retval)
+               return retval;
+
+       for (new_blk = blk = fs->super->s_first_data_block;
+            blk < fs->super->s_blocks_count; blk++) {
+               if (!ext2fs_test_block_bitmap(bmap, blk))
+                       continue;
+
+               if (ext2fs_is_meta_block(fs, blk)) {
+                       /*
+                        * If the block is mapping a fs meta data block
+                        * like group desc/block bitmap/inode bitmap. We
+                        * should find a block in the same group and fix
+                        * the respective fs metadata pointers. Otherwise
+                        * fail
+                        */
+                       group = ext2fs_group_of_blk(fs, blk);
+                       goal = ext2fs_group_first_block(fs, group);
+                       meta_data = 1;
+
+               } else {
+                       goal = new_blk;
+               }
+               retval = ext2fs_new_block(fs, goal, NULL, &new_blk);
+               if (retval)
+                       goto err_out;
+
+               /* new fs meta data block should be in the same group */
+               if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) {
+                       retval = ENOSPC;
+                       goto err_out;
+               }
+
+               /* Mark this block as allocated */
+               ext2fs_mark_block_bitmap(fs->block_map, new_blk);
+
+               /* Add it to block move list */
+               retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
+               if (retval)
+                       goto err_out;
+
+               bmv->old_loc = blk;
+               bmv->new_loc = new_blk;
+
+               list_add(&(bmv->list), &blk_move_list);
+
+               retval = io_channel_read_blk(fs->io, blk, 1, buf);
+               if (retval)
+                       goto err_out;
+
+               retval = io_channel_write_blk(fs->io, new_blk, 1, buf);
+               if (retval)
+                       goto err_out;
+       }
+
+err_out:
+       ext2fs_free_mem(&buf);
+       return retval;
+}
+
+static blk_t translate_block(blk_t blk)
+{
+       struct list_head *entry;
+       struct blk_move *bmv;
+
+       list_for_each(entry, &blk_move_list) {
+               bmv = list_entry(entry, struct blk_move, list);
+               if (bmv->old_loc == blk)
+                       return bmv->new_loc;
+       }
+
+       return 0;
+}
+
+static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
+                        blk_t *block_nr,
+                        e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
+                        blk_t ref_block EXT2FS_ATTR((unused)),
+                        int ref_offset EXT2FS_ATTR((unused)),
+                        void *priv_data)
+{
+       int ret = 0;
+       blk_t new_blk;
+       ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data;
+
+       if (!ext2fs_test_block_bitmap(bmap, *block_nr))
+               return 0;
+       new_blk = translate_block(*block_nr);
+       if (new_blk) {
+               *block_nr = new_blk;
+               /*
+                * This will force the ext2fs_write_inode in the iterator
+                */
+               ret |= BLOCK_CHANGED;
+       }
+
+       return ret;
+}
+
+static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
+{
+       errcode_t retval = 0;
+       ext2_ino_t ino;
+       blk_t blk;
+       char *block_buf = 0;
+       struct ext2_inode inode;
+       ext2_inode_scan scan = NULL;
+
+       retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf);
+       if (retval)
+               return retval;
+
+       retval = ext2fs_open_inode_scan(fs, 0, &scan);
+       if (retval)
+               goto err_out;
+
+       while (1) {
+               retval = ext2fs_get_next_inode(scan, &ino, &inode);
+               if (retval)
+                       goto err_out;
+
+               if (!ino)
+                       break;
+
+               if (inode.i_links_count == 0)
+                       continue; /* inode not in use */
+
+               /* FIXME!!
+                * If we end up modifying the journal inode
+                * the sb->s_jnl_blocks will differ. But a
+                * subsequent e2fsck fixes that.
+                * Do we need to fix this ??
+                */
+
+               if (inode.i_file_acl &&
+                   ext2fs_test_block_bitmap(bmap, inode.i_file_acl)) {
+                       blk = translate_block(inode.i_file_acl);
+                       if (!blk)
+                               continue;
+
+                       inode.i_file_acl = blk;
+
+                       /*
+                        * Write the inode to disk so that inode table
+                        * resizing can work
+                        */
+                       retval = ext2fs_write_inode(fs, ino, &inode);
+                       if (retval)
+                               goto err_out;
+               }
+
+               if (!ext2fs_inode_has_valid_blocks(&inode))
+                       continue;
+
+               retval = ext2fs_block_iterate2(fs, ino, 0, block_buf,
+                                              process_block, bmap);
+               if (retval)
+                       goto err_out;
+
+       }
+
+err_out:
+       ext2fs_free_mem(&block_buf);
+
+       return retval;
+}
+
+/*
+ * We need to scan for inode and block bitmaps that may need to be
+ * moved.  This can take place if the filesystem was formatted for
+ * RAID arrays using the mke2fs's extended option "stride".
+ */
+static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
+{
+       dgrp_t i;
+       blk_t blk, new_blk;
+
+       for (i = 0; i < fs->group_desc_count; i++) {
+               blk = fs->group_desc[i].bg_block_bitmap;
+               if (ext2fs_test_block_bitmap(bmap, blk)) {
+                       new_blk = translate_block(blk);
+                       if (!new_blk)
+                               continue;
+                       fs->group_desc[i].bg_block_bitmap = new_blk;
+               }
+
+               blk = fs->group_desc[i].bg_inode_bitmap;
+               if (ext2fs_test_block_bitmap(bmap, blk)) {
+                       new_blk = translate_block(blk);
+                       if (!new_blk)
+                               continue;
+                       fs->group_desc[i].bg_inode_bitmap = new_blk;
+               }
+       }
+       return 0;
+}
+
+static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
+{
+       dgrp_t i;
+       blk_t blk;
+       errcode_t retval;
+       int new_ino_blks_per_grp;
+       unsigned int j;
+       char *old_itable = NULL, *new_itable = NULL;
+       char *tmp_old_itable = NULL, *tmp_new_itable = NULL;
+       unsigned long old_ino_size;
+       int old_itable_size, new_itable_size;
+
+       old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
+       old_ino_size = EXT2_INODE_SIZE(fs->super);
+
+       new_ino_blks_per_grp = ext2fs_div_ceil(
+                                       EXT2_INODES_PER_GROUP(fs->super) *
+                                       new_ino_size,
+                                       fs->blocksize);
+
+       new_itable_size = new_ino_blks_per_grp * fs->blocksize;
+
+       retval = ext2fs_get_mem(old_itable_size, &old_itable);
+       if (retval)
+               return retval;
+
+       retval = ext2fs_get_mem(new_itable_size, &new_itable);
+       if (retval)
+               goto err_out;
+
+       tmp_old_itable = old_itable;
+       tmp_new_itable = new_itable;
+
+       for (i = 0; i < fs->group_desc_count; i++) {
+               blk = fs->group_desc[i].bg_inode_table;
+               retval = io_channel_read_blk(fs->io, blk,
+                               fs->inode_blocks_per_group, old_itable);
+               if (retval)
+                       goto err_out;
+
+               for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) {
+                       memcpy(new_itable, old_itable, old_ino_size);
+
+                       memset(new_itable+old_ino_size, 0,
+                                       new_ino_size - old_ino_size);
+
+                       new_itable += new_ino_size;
+                       old_itable += old_ino_size;
+               }
+
+               /* reset the pointer */
+               old_itable = tmp_old_itable;
+               new_itable = tmp_new_itable;
+
+               retval = io_channel_write_blk(fs->io, blk,
+                                       new_ino_blks_per_grp, new_itable);
+               if (retval)
+                       goto err_out;
+       }
+
+       /* Update the meta data */
+       fs->inode_blocks_per_group = new_ino_blks_per_grp;
+       fs->super->s_inode_size = new_ino_size;
+
+err_out:
+       if (old_itable)
+               ext2fs_free_mem(&old_itable);
+
+       if (new_itable)
+               ext2fs_free_mem(&new_itable);
+
+       return retval;
+}
+
+static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
+{
+       blk_t           blk;
+       ext2_ino_t      ino;
+       unsigned int    group = 0;
+       unsigned int    count = 0;
+       int             total_free = 0;
+       int             group_free = 0;
+
+       /*
+        * First calculate the block statistics
+        */
+       for (blk = fs->super->s_first_data_block;
+            blk < fs->super->s_blocks_count; blk++) {
+               if (!ext2fs_fast_test_block_bitmap(fs->block_map, blk)) {
+                       group_free++;
+                       total_free++;
+               }
+               count++;
+               if ((count == fs->super->s_blocks_per_group) ||
+                   (blk == fs->super->s_blocks_count-1)) {
+                       fs->group_desc[group++].bg_free_blocks_count =
+                               group_free;
+                       count = 0;
+                       group_free = 0;
+               }
+       }
+       fs->super->s_free_blocks_count = total_free;
+
+       /*
+        * Next, calculate the inode statistics
+        */
+       group_free = 0;
+       total_free = 0;
+       count = 0;
+       group = 0;
+
+       /* Protect loop from wrap-around if s_inodes_count maxed */
+       for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
+               if (!ext2fs_fast_test_inode_bitmap(fs->inode_map, ino)) {
+                       group_free++;
+                       total_free++;
+               }
+               count++;
+               if ((count == fs->super->s_inodes_per_group) ||
+                   (ino == fs->super->s_inodes_count)) {
+                       fs->group_desc[group++].bg_free_inodes_count =
+                               group_free;
+                       count = 0;
+                       group_free = 0;
+               }
+       }
+       fs->super->s_free_inodes_count = total_free;
+       ext2fs_mark_super_dirty(fs);
+       return 0;
+}
+
+#define list_for_each_safe(pos, pnext, head) \
+       for (pos = (head)->next, pnext = pos->next; pos != (head); \
+            pos = pnext, pnext = pos->next)
+
+static void free_blk_move_list(void)
+{
+       struct list_head *entry, *tmp;
+       struct blk_move *bmv;
+
+       list_for_each_safe(entry, tmp, &blk_move_list) {
+               bmv = list_entry(entry, struct blk_move, list);
+               list_del(entry);
+               ext2fs_free_mem(&bmv);
+       }
+       return;
+}
+
+static int resize_inode(ext2_filsys fs, unsigned long new_size)
+{
+       errcode_t retval;
+       int new_ino_blks_per_grp;
+       ext2fs_block_bitmap bmap;
+
+       ext2fs_read_inode_bitmap(fs);
+       ext2fs_read_block_bitmap(fs);
+       INIT_LIST_HEAD(&blk_move_list);
+
+
+       new_ino_blks_per_grp = ext2fs_div_ceil(
+                                       EXT2_INODES_PER_GROUP(fs->super)*
+                                       new_size,
+                                       fs->blocksize);
+
+       /* We may change the file system.
+        * Mark the file system as invalid so that
+        * the user is prompted to run fsck.
+        */
+       fs->super->s_state &= ~EXT2_VALID_FS;
+
+       retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
+                                               &bmap);
+       if (retval) {
+               fputs(_("Failed to allocate block bitmap when "
+                               "increasing inode size\n"), stderr);
+               return retval;
+       }
+       retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap);
+       if (retval) {
+               fputs(_("Not enough space to increase inode size \n"), stderr);
+               goto err_out;
+       }
+       retval = move_block(fs, bmap);
+       if (retval) {
+               fputs(_("Failed to relocate blocks during inode resize \n"),
+                     stderr);
+               goto err_out;
+       }
+       retval = inode_scan_and_fix(fs, bmap);
+       if (retval)
+               goto err_out_undo;
+
+       retval = group_desc_scan_and_fix(fs, bmap);
+       if (retval)
+               goto err_out_undo;
+
+       retval = expand_inode_table(fs, new_size);
+       if (retval)
+               goto err_out_undo;
+
+       ext2fs_calculate_summary_stats(fs);
+
+       fs->super->s_state |= EXT2_VALID_FS;
+       /* mark super block and block bitmap as dirty */
+       ext2fs_mark_super_dirty(fs);
+       ext2fs_mark_bb_dirty(fs);
+
+err_out:
+       free_blk_move_list();
+       ext2fs_free_block_bitmap(bmap);
+
+       return retval;
+
+err_out_undo:
+       free_blk_move_list();
+       ext2fs_free_block_bitmap(bmap);
+       fputs(_("Error in resizing the inode size.\n"
+                       "Run e2undo to undo the "
+                       "file system changes. \n"), stderr);
+
+       return retval;
+}
+
+static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
+{
+       errcode_t retval = 0;
+       const char *tdb_dir;
+       char *tdb_file;
+       char *dev_name, *tmp_name;
+
+#if 0 /* FIXME!! */
+       /*
+        * Configuration via a conf file would be
+        * nice
+        */
+       profile_get_string(profile, "scratch_files",
+                                       "directory", 0, 0,
+                                       &tdb_dir);
+#endif
+       tmp_name = strdup(name);
+       if (!tmp_name) {
+       alloc_fn_fail:
+               com_err(program_name, ENOMEM, 
+                       _("Couldn't allocate memory for tdb filename\n"));
+               return ENOMEM;
+       }
+       dev_name = basename(tmp_name);
+
+       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;
+
+       tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
+       if (!tdb_file)
+               goto alloc_fn_fail;
+       sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
+
+       if (!access(tdb_file, F_OK)) {
+               if (unlink(tdb_file) < 0) {
+                       retval = errno;
+                       com_err(program_name, retval,
+                               _("while trying to delete %s"),
+                               tdb_file);
+                       free(tdb_file);
+                       return retval;
+               }
+       }
+
+       set_undo_io_backing_manager(*io_ptr);
+       *io_ptr = undo_io_manager;
+       set_undo_io_backup_file(tdb_file);
+       printf(_("To undo the tune2fs operation please run "
+                "the command\n    e2undo %s %s\n\n"),
+                tdb_file, name);
+       free(tdb_file);
+       free(tmp_name);
+       return retval;
+}
+
+int main(int argc, char **argv)
 {
        errcode_t retval;
        ext2_filsys fs;
        struct ext2_super_block *sb;
-       io_manager io_ptr;
+       io_manager io_ptr, io_ptr_orig = NULL;
 
 #ifdef ENABLE_NLS
        setlocale(LC_MESSAGES, "");
@@ -754,37 +1546,79 @@ int main (int argc, char ** argv)
 #endif
        if (argc && *argv)
                program_name = *argv;
-       initialize_ext2_error_table();
+       add_error_table(&et_ext2_error_table);
 
+#ifdef CONFIG_BUILD_FINDFS
        if (strcmp(get_progname(argv[0]), "findfs") == 0)
                do_findfs(argc, argv);
+#endif
        if (strcmp(get_progname(argv[0]), "e2label") == 0)
                parse_e2label_options(argc, argv);
        else
                parse_tune2fs_options(argc, argv);
-       
+
 #ifdef CONFIG_TESTIO_DEBUG
-       io_ptr = test_io_manager;
-       test_io_backing_manager = unix_io_manager;
-#else
-       io_ptr = unix_io_manager;
+       if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) {
+               io_ptr = test_io_manager;
+               test_io_backing_manager = unix_io_manager;
+       } else
 #endif
-       retval = ext2fs_open2(device_name, io_options, open_flag, 
+               io_ptr = unix_io_manager;
+
+retry_open:
+       retval = ext2fs_open2(device_name, io_options, open_flag,
                              0, 0, io_ptr, &fs);
-        if (retval) {
-               com_err (program_name, retval, _("while trying to open %s"),
-                        device_name);
+       if (retval) {
+                       com_err(program_name, retval,
+                               _("while trying to open %s"),
+                       device_name);
                fprintf(stderr,
                        _("Couldn't find valid filesystem superblock.\n"));
                exit(1);
        }
+
+       if (I_flag && !io_ptr_orig) {
+               /*
+                * Check the inode size is right so we can issue an
+                * error message and bail before setting up the tdb
+                * file.
+                */
+               if (new_inode_size == EXT2_INODE_SIZE(fs->super)) {
+                       fprintf(stderr, _("The inode size is already %lu\n"),
+                               new_inode_size);
+                       exit(1);
+               }
+               if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
+                       fprintf(stderr, _("Shrinking the inode size is "
+                                         "not supported\n"));
+                       exit(1);
+               }
+
+               /*
+                * If inode resize is requested use the
+                * Undo I/O manager
+                */
+               io_ptr_orig = io_ptr;
+               retval = tune2fs_setup_tdb(device_name, &io_ptr);
+               if (retval)
+                       exit(1);
+               if (io_ptr != io_ptr_orig) {
+                       ext2fs_close(fs);
+                       goto retry_open;
+               }
+       }
+
        sb = fs->super;
+       fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
+
        if (print_label) {
                /* For e2label emulation */
                printf("%.*s\n", (int) sizeof(sb->s_volume_name),
                       sb->s_volume_name);
+               remove_error_table(&et_ext2_error_table);
                exit(0);
        }
+
        retval = ext2fs_check_if_mounted(device_name, &mount_flags);
        if (retval) {
                com_err("ext2fs_check_if_mount", retval,
@@ -798,47 +1632,49 @@ int main (int argc, char ** argv)
        if (c_flag) {
                sb->s_max_mnt_count = max_mount_count;
                ext2fs_mark_super_dirty(fs);
-               printf (_("Setting maximal mount count to %d\n"),
-                       max_mount_count);
+               printf(_("Setting maximal mount count to %d\n"),
+                      max_mount_count);
        }
        if (C_flag) {
                sb->s_mnt_count = mount_count;
                ext2fs_mark_super_dirty(fs);
-               printf (_("Setting current mount count to %d\n"), mount_count);
+               printf(_("Setting current mount count to %d\n"), mount_count);
        }
        if (e_flag) {
                sb->s_errors = errors;
                ext2fs_mark_super_dirty(fs);
-               printf (_("Setting error behavior to %d\n"), errors);
+               printf(_("Setting error behavior to %d\n"), errors);
        }
        if (g_flag) {
                sb->s_def_resgid = resgid;
                ext2fs_mark_super_dirty(fs);
-               printf (_("Setting reserved blocks gid to %lu\n"), resgid);
+               printf(_("Setting reserved blocks gid to %lu\n"), resgid);
        }
        if (i_flag) {
                sb->s_checkinterval = interval;
                ext2fs_mark_super_dirty(fs);
-               printf (_("Setting interval between check %lu seconds\n"), interval);
+               printf(_("Setting interval between checks to %lu seconds\n"),
+                      interval);
        }
        if (m_flag) {
-               sb->s_r_blocks_count = (sb->s_blocks_count / 100)
-                       * reserved_ratio;
+               sb->s_r_blocks_count = (unsigned int) (reserved_ratio *
+                                       sb->s_blocks_count / 100.0);
                ext2fs_mark_super_dirty(fs);
-               printf (_("Setting reserved blocks percentage to %lu (%u blocks)\n"),
-                       reserved_ratio, sb->s_r_blocks_count);
+               printf(_("Setting reserved blocks percentage to %g%% "
+                        "(%u blocks)\n"),
+                      reserved_ratio, sb->s_r_blocks_count);
        }
        if (r_flag) {
-               if (reserved_blocks >= sb->s_blocks_count) {
-                       com_err (program_name, 0,
-                                _("reserved blocks count is too big (%lu)"),
-                                reserved_blocks);
-                       exit (1);
+               if (reserved_blocks >= sb->s_blocks_count/2) {
+                       com_err(program_name, 0,
+                               _("reserved blocks count is too big (%lu)"),
+                               reserved_blocks);
+                       exit(1);
                }
                sb->s_r_blocks_count = reserved_blocks;
                ext2fs_mark_super_dirty(fs);
-               printf (_("Setting reserved blocks count to %lu\n"),
-                       reserved_blocks);
+               printf(_("Setting reserved blocks count to %lu\n"),
+                      reserved_blocks);
        }
        if (s_flag == 1) {
                if (sb->s_feature_ro_compat &
@@ -855,19 +1691,9 @@ int main (int argc, char ** argv)
                }
        }
        if (s_flag == 0) {
-               if (!(sb->s_feature_ro_compat &
-                     EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER))
-                       fputs(_("\nThe filesystem already has sparse "
-                               "superblocks disabled.\n"), stderr);
-               else {
-                       sb->s_feature_ro_compat &=
-                               ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
-                       sb->s_state &= ~EXT2_VALID_FS;
-                       fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
-                       ext2fs_mark_super_dirty(fs);
-                       printf(_("\nSparse superblock flag cleared.  %s"),
-                              _(please_fsck));
-               }
+               fputs(_("\nClearing the sparse superflag not supported.\n"),
+                     stderr);
+               exit(1);
        }
        if (T_flag) {
                sb->s_lastcheck = last_check_time;
@@ -878,11 +1704,11 @@ int main (int argc, char ** argv)
        if (u_flag) {
                sb->s_def_resuid = resuid;
                ext2fs_mark_super_dirty(fs);
-               printf (_("Setting reserved blocks uid to %lu\n"), resuid);
+               printf(_("Setting reserved blocks uid to %lu\n"), resuid);
        }
        if (L_flag) {
                if (strlen(new_label) > sizeof(sb->s_volume_name))
-                       fputs(_("Warning: label too long, truncating.\n"), 
+                       fputs(_("Warning: label too long, truncating.\n"),
                              stderr);
                memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
                strncpy(sb->s_volume_name, new_label,
@@ -899,10 +1725,28 @@ int main (int argc, char ** argv)
                update_mntopts(fs, mntopts_cmd);
        if (features_cmd)
                update_feature_set(fs, features_cmd);
+       if (extended_cmd)
+               parse_extended_opts(fs, extended_cmd);
        if (journal_size || journal_device)
                add_journal(fs);
-       
+
        if (U_flag) {
+               int set_csum = 0;
+               dgrp_t i;
+
+               if (sb->s_feature_ro_compat &
+                   EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
+                       /*
+                        * Determine if the block group checksums are
+                        * correct so we know whether or not to set
+                        * them later on.
+                        */
+                       for (i = 0; i < fs->group_desc_count; i++)
+                               if (!ext2fs_group_desc_csum_verify(fs, i))
+                                       break;
+                       if (i >= fs->group_desc_count)
+                               set_csum = 1;
+               }
                if ((strcasecmp(new_UUID, "null") == 0) ||
                    (strcasecmp(new_UUID, "clear") == 0)) {
                        uuid_clear(sb->s_uuid);
@@ -914,10 +1758,52 @@ int main (int argc, char ** argv)
                        com_err(program_name, 0, _("Invalid UUID format\n"));
                        exit(1);
                }
+               if (set_csum) {
+                       for (i = 0; i < fs->group_desc_count; i++)
+                               ext2fs_group_desc_csum_set(fs, i);
+                       fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+               }
                ext2fs_mark_super_dirty(fs);
        }
+       if (I_flag) {
+               if (mount_flags & EXT2_MF_MOUNTED) {
+                       fputs(_("The inode size may only be "
+                               "changed when the filesystem is "
+                               "unmounted.\n"), stderr);
+                       exit(1);
+               }
+               if (fs->super->s_feature_incompat &
+                   EXT4_FEATURE_INCOMPAT_FLEX_BG) {
+                       fputs(_("Changing the inode size not supported for "
+                               "filesystems with the flex_bg\n"
+                               "feature enabled.\n"),
+                             stderr);
+                       exit(1);
+               }
+               /*
+                * We want to update group descriptor also
+                * with the new free inode count
+                */
+               fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+               if (resize_inode(fs, new_inode_size) == 0) {
+                       printf(_("Setting inode size %lu\n"),
+                                                       new_inode_size);
+               }
+       }
 
        if (l_flag)
-               list_super (sb);
-       return (ext2fs_close (fs) ? 1 : 0);
+               list_super(sb);
+       if (stride_set) {
+               sb->s_raid_stride = stride;
+               ext2fs_mark_super_dirty(fs);
+               printf(_("Setting stride size to %d\n"), stride);
+       }
+       if (stripe_width_set) {
+               sb->s_raid_stripe_width = stripe_width;
+               ext2fs_mark_super_dirty(fs);
+               printf(_("Setting stripe width to %d\n"), stripe_width);
+       }
+       free(device_name);
+       remove_error_table(&et_ext2_error_table);
+       return (ext2fs_close(fs) ? 1 : 0);
 }