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filefrag: fix an off by one error in when printing the next expected block
[tools/e2fsprogs.git] / misc / tune2fs.c
index 527991a..e2fdb4a 100644 (file)
@@ -25,8 +25,9 @@
  * 94/03/06    - Added the checks interval from Uwe Ohse (uwe@tirka.gun.de)
  */
 
-#define _XOPEN_SOURCE 500 /* for inclusion of strptime() */
+#define _XOPEN_SOURCE 600 /* for inclusion of strptime() */
 #define _BSD_SOURCE /* for inclusion of strcasecmp() */
+#include "config.h"
 #include <fcntl.h>
 #include <grp.h>
 #ifdef HAVE_GETOPT_H
@@ -37,12 +38,15 @@ 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"
@@ -52,31 +56,29 @@ extern int optind;
 #include "jfs_user.h"
 #include "util.h"
 #include "blkid/blkid.h"
+#include "quota/mkquota.h"
 
 #include "../version.h"
 #include "nls-enable.h"
 
-/* 
- * Tune2fs supports these features in addition to the standard features.
- */
-#define EXT2_TUNE2FS_INCOMPAT  (EXT3_FEATURE_INCOMPAT_EXTENTS)
-#define EXT2_TUNE2FS_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
-                                EXT4_FEATURE_RO_COMPAT_GDT_CSUM|       \
-                                EXT4_FEATURE_RO_COMPAT_DIR_NLINK|      \
-                                EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE)
+#define QOPT_ENABLE    (1)
+#define QOPT_DISABLE   (-1)
 
+extern int ask_yn(const char *string, int def);
 
-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 m_flag, M_flag, Q_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag;
 static int I_flag;
+static int clear_mmp;
 static time_t last_check_time;
 static int print_label;
 static int max_mount_count, mount_count, mount_flags;
-static unsigned long interval, reserved_blocks;
+static unsigned long interval;
+static blk64_t reserved_blocks;
 static double reserved_ratio;
 static unsigned long resgid, resuid;
 static unsigned short errors;
@@ -86,7 +88,9 @@ static char *mntopts_cmd;
 static int stride, stripe_width;
 static int stride_set, stripe_width_set;
 static char *extended_cmd;
-static unsigned long int new_inode_size;
+static unsigned long new_inode_size;
+static char *ext_mount_opts;
+static int usrquota, grpquota;
 
 int journal_size, journal_flags;
 char *journal_device;
@@ -95,14 +99,16 @@ static struct list_head blk_move_list;
 
 struct blk_move {
        struct list_head list;
-       blk_t old_loc;
-       blk_t new_loc;
+       blk64_t old_loc;
+       blk64_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)
 {
@@ -111,13 +117,13 @@ static void usage(void)
                  "[-g group]\n"
                  "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
                  "\t[-m reserved_blocks_percent] "
-                 "[-o [^]mount_options[,...]] \n"
+                 "[-o [^]mount_options[,...]] [-p mmp_update_interval]\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);
+       exit(1);
 }
 
 static __u32 ok_features[3] = {
@@ -127,11 +133,16 @@ static __u32 ok_features[3] = {
        /* Incompat */
        EXT2_FEATURE_INCOMPAT_FILETYPE |
                EXT3_FEATURE_INCOMPAT_EXTENTS |
-               EXT4_FEATURE_INCOMPAT_FLEX_BG,
+               EXT4_FEATURE_INCOMPAT_FLEX_BG |
+               EXT4_FEATURE_INCOMPAT_MMP,
        /* 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
+               EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER |
+               EXT4_FEATURE_RO_COMPAT_QUOTA
 };
 
 static __u32 clear_ok_features[3] = {
@@ -141,16 +152,21 @@ static __u32 clear_ok_features[3] = {
                EXT2_FEATURE_COMPAT_DIR_INDEX,
        /* Incompat */
        EXT2_FEATURE_INCOMPAT_FILETYPE |
-               EXT4_FEATURE_INCOMPAT_FLEX_BG,
+               EXT4_FEATURE_INCOMPAT_FLEX_BG |
+               EXT4_FEATURE_INCOMPAT_MMP,
        /* R/O compat */
        EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
-               EXT4_FEATURE_RO_COMPAT_GDT_CSUM
+               EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
+               EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
+               EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
+               EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
+               EXT4_FEATURE_RO_COMPAT_QUOTA
 };
 
 /*
  * Remove an external journal from the filesystem
  */
-static void remove_journal_device(ext2_filsys fs)
+static int remove_journal_device(ext2_filsys fs)
 {
        char            *journal_path;
        ext2_filsys     jfs;
@@ -171,15 +187,16 @@ static void remove_journal_device(ext2_filsys fs)
                journal_path =
                        ext2fs_find_block_device(fs->super->s_journal_dev);
                if (!journal_path)
-                       return;
+                       goto no_valid_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_path, EXT2_FLAG_RW|
                             EXT2_FLAG_JOURNAL_DEV_OK, 0,
                             fs->blocksize, io_ptr, &jfs);
@@ -188,46 +205,46 @@ static void remove_journal_device(ext2_filsys fs)
                        _("while trying to open external journal"));
                goto no_valid_journal;
        }
-       if (!(jfs->super->s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
+       if (!(jfs->super->s_feature_incompat &
+             EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
                fprintf(stderr, _("%s is not a journal device.\n"),
                        journal_path);
                goto no_valid_journal;
        }
 
        /* Get the journal superblock */
-       if ((retval = io_channel_read_blk(jfs->io, 1, -1024, buf))) {
+       if ((retval = io_channel_read_blk64(jfs->io, 1, -1024, buf))) {
                com_err(program_name, retval,
                        _("while reading journal superblock"));
                goto no_valid_journal;
        }
 
        jsb = (journal_superblock_t *) buf;
-       if ((jsb->s_header.h_magic != (unsigned) ntohl(JFS_MAGIC_NUMBER)) ||
-           (jsb->s_header.h_blocktype != (unsigned) ntohl(JFS_SUPERBLOCK_V2))) {
+       if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) ||
+           (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) {
                fputs(_("Journal superblock not found!\n"), stderr);
                goto no_valid_journal;
        }
 
        /* Find the filesystem UUID */
        nr_users = ntohl(jsb->s_nr_users);
-       for (i=0; i < nr_users; i++) {
-               if (memcmp(fs->super->s_uuid,
-                          &jsb->s_users[i*16], 16) == 0)
+       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++)
-               memcpy(&jsb->s_users[i*16], &jsb->s_users[(i+1)*16], 16);
+       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);
 
        /* Write back the journal superblock */
-       if ((retval = io_channel_write_blk(jfs->io, 1, -1024, buf))) {
+       if ((retval = io_channel_write_blk64(jfs->io, 1, -1024, buf))) {
                com_err(program_name, retval,
                        "while writing journal superblock.");
                goto no_valid_journal;
@@ -237,62 +254,68 @@ static void remove_journal_device(ext2_filsys fs)
 
 no_valid_journal:
        if (commit_remove_journal == 0) {
-               fputs(_("Journal NOT removed\n"), stderr);
-               exit(1);
+               fputs(_("Cannot locate journal device. It was NOT removed\n"
+                       "Use -f option to remove missing journal device.\n"),
+                     stderr);
+               return 1;
        }
        fs->super->s_journal_dev = 0;
        uuid_clear(fs->super->s_journal_uuid);
        ext2fs_mark_super_dirty(fs);
        fputs(_("Journal removed\n"), stdout);
        free(journal_path);
+
+       return 0;
 }
 
 /* Helper function for remove_journal_inode */
-static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
-                              int blockcnt EXT2FS_ATTR((unused)), 
+static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
+                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
+                              blk64_t ref_block EXT2FS_ATTR((unused)),
+                              int ref_offset EXT2FS_ATTR((unused)),
                               void *private EXT2FS_ATTR((unused)))
 {
-       blk_t   block;
+       blk64_t block;
        int     group;
 
        block = *blocknr;
-       ext2fs_unmark_block_bitmap(fs->block_map,block);
-       group = ext2fs_group_of_blk(fs, block);
-       fs->group_desc[group].bg_free_blocks_count++;
+       ext2fs_unmark_block_bitmap2(fs->block_map, block);
+       group = ext2fs_group_of_blk2(fs, block);
+       ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
        ext2fs_group_desc_csum_set(fs, group);
-       fs->super->s_free_blocks_count++;
+       ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs));
        return 0;
 }
 
 /*
  * Remove the journal inode from the filesystem
  */
-static void remove_journal_inode(ext2_filsys fs)
+static errcode_t 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,
                        _("while reading journal inode"));
-               exit(1);
+               return retval;
        }
        if (ino == EXT2_JOURNAL_INO) {
                retval = ext2fs_read_bitmaps(fs);
                if (retval) {
                        com_err(program_name, retval,
                                _("while reading bitmaps"));
-                       exit(1);
+                       return retval;
                }
-               retval = ext2fs_block_iterate(fs, ino,
-                                             BLOCK_FLAG_READ_ONLY, NULL,
-                                             release_blocks_proc, NULL);
+               retval = ext2fs_block_iterate3(fs, ino,
+                                              BLOCK_FLAG_READ_ONLY, NULL,
+                                              release_blocks_proc, NULL);
                if (retval) {
                        com_err(program_name, retval,
                                _("while clearing journal inode"));
-                       exit(1);
+                       return retval;
                }
                memset(&inode, 0, sizeof(inode));
                ext2fs_mark_bb_dirty(fs);
@@ -303,35 +326,52 @@ static void remove_journal_inode(ext2_filsys fs)
        if (retval) {
                com_err(program_name, retval,
                        _("while writing journal inode"));
-               exit(1);
+               return retval;
        }
        fs->super->s_journal_inum = 0;
        ext2fs_mark_super_dirty(fs);
+
+       return 0;
 }
 
 /*
  * Update the default mount options
  */
-static void update_mntopts(ext2_filsys fs, char *mntopts)
+static int 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"),
                        mntopts);
-               exit(1);
+               return 1;
        }
        ext2fs_mark_super_dirty(fs);
+
+       return 0;
+}
+
+static void request_fsck_afterwards(ext2_filsys fs)
+{
+       static int requested = 0;
+
+       if (requested++)
+               return;
+       fs->super->s_state &= ~EXT2_VALID_FS;
+       printf("\n%s\n", _(please_fsck));
+       if (mount_flags & EXT2_MF_READONLY)
+               printf(_("(and reboot afterwards!)\n"));
 }
 
 /*
  * Update the feature set as provided by the user.
  */
-static void update_feature_set(ext2_filsys fs, char *features)
+static int update_feature_set(ext2_filsys fs, char *features)
 {
-       struct ext2_super_block *sb= fs->super;
+       struct ext2_super_block *sb = fs->super;
+       struct ext2_group_desc *gd;
        __u32           old_features[3];
-       int             type_err;
+       int             i, type_err;
        unsigned int    mask_err;
 
 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
@@ -362,39 +402,105 @@ static void update_feature_set(ext2_filsys fs, char *features)
                        fprintf(stderr, _("Setting filesystem feature '%s' "
                                          "not supported.\n"),
                                e2p_feature2string(type_err, mask_err));
-               exit(1);
+               return 1;
        }
 
        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);
-                       exit(1);
+                       return 1;
                }
                if (sb->s_feature_incompat &
                    EXT3_FEATURE_INCOMPAT_RECOVER) {
                        fputs(_("The needs_recovery flag is set.  "
                                "Please run e2fsck before clearing\n"
                                "the has_journal flag.\n"), stderr);
-                       exit(1);
+                       return 1;
                }
                if (sb->s_journal_inum) {
-                       remove_journal_inode(fs);
+                       if (remove_journal_inode(fs))
+                               return 1;
                }
                if (sb->s_journal_dev) {
-                       remove_journal_device(fs);
+                       if (remove_journal_device(fs))
+                               return 1;
                }
        }
+       if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
+               int error;
+
+               if ((mount_flags & EXT2_MF_MOUNTED) ||
+                   (mount_flags & EXT2_MF_READONLY)) {
+                       fputs(_("The multiple mount protection feature can't\n"
+                               "be set if the filesystem is mounted or\n"
+                               "read-only.\n"), stderr);
+                       return 1;
+               }
+
+               error = ext2fs_mmp_init(fs);
+               if (error) {
+                       fputs(_("\nError while enabling multiple mount "
+                               "protection feature."), stderr);
+                       return 1;
+               }
+
+               /*
+                * We want to update group desc with the new free blocks count
+                */
+               fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+
+               printf(_("Multiple mount protection has been enabled "
+                        "with update interval %ds.\n"),
+                      sb->s_mmp_update_interval);
+       }
+
+       if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
+               int error;
+
+               if (mount_flags & EXT2_MF_READONLY) {
+                       fputs(_("The multiple mount protection feature cannot\n"
+                               "be disabled if the filesystem is readonly.\n"),
+                               stderr);
+                       return 1;
+               }
+
+               error = ext2fs_read_bitmaps(fs);
+               if (error) {
+                       fputs(_("Error while reading bitmaps\n"), stderr);
+                       return 1;
+               }
+
+               error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL);
+               if (error) {
+                       struct mmp_struct *mmp_cmp = fs->mmp_cmp;
+
+                       if (error == EXT2_ET_MMP_MAGIC_INVALID)
+                               printf(_("Magic number in MMP block does not "
+                                        "match. expected: %x, actual: %x\n"),
+                                        EXT4_MMP_MAGIC, mmp_cmp->mmp_magic);
+                       else
+                               com_err(program_name, error,
+                                       _("while reading MMP block."));
+                       goto mmp_error;
+               }
+
+               /* We need to force out the group descriptors as well */
+               fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+               ext2fs_block_alloc_stats(fs, sb->s_mmp_block, -1);
+mmp_error:
+               sb->s_mmp_block = 0;
+               sb->s_mmp_update_interval = 0;
+       }
 
        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;
@@ -403,7 +509,7 @@ static void update_feature_set(ext2_filsys fs, char *features)
 
        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);
        }
@@ -413,10 +519,82 @@ static void update_feature_set(ext2_filsys fs, char *features)
                        fputs(_("Clearing the flex_bg flag would "
                                "cause the the filesystem to be\n"
                                "inconsistent.\n"), stderr);
-                       exit(1);
+                       return 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);
+                       return 1;
+               }
+       }
+
+       if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
+                      EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
+               for (i = 0; i < fs->group_desc_count; i++) {
+                       gd = ext2fs_group_desc(fs, fs->group_desc, i);
+                       gd->bg_itable_unused = 0;
+                       gd->bg_flags = EXT2_BG_INODE_ZEROED;
+                       ext2fs_group_desc_csum_set(fs, i);
+               }
+               fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+       }
+
+       if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
+                       EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
+               for (i = 0; i < fs->group_desc_count; i++) {
+                       gd = ext2fs_group_desc(fs, fs->group_desc, i);
+                       if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) {
+                               /* 
+                                * XXX what we really should do is zap
+                                * uninitialized inode tables instead.
+                                */
+                               request_fsck_afterwards(fs);
+                               break;
+                       }
+                       gd->bg_itable_unused = 0;
+                       gd->bg_flags = 0;
+                       gd->bg_checksum = 0;
+               }
+               fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
+       }
+
+       if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
+                               EXT4_FEATURE_RO_COMPAT_QUOTA)) {
+               /*
+                * Set the Q_flag here and handle the quota options in the code
+                * below.
+                */
+               if (!Q_flag) {
+                       Q_flag = 1;
+                       /* Enable both user quota and group quota by default */
+                       usrquota = QOPT_ENABLE;
+                       grpquota = QOPT_ENABLE;
+               }
+               sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
+       }
+
+       if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
+                               EXT4_FEATURE_RO_COMPAT_QUOTA)) {
+               /*
+                * Set the Q_flag here and handle the quota options in the code
+                * below.
+                */
+               if (Q_flag)
+                       fputs(_("\nWarning: '^quota' option overrides '-Q'"
+                               "arguments.\n"), stderr);
+               Q_flag = 1;
+               /* Disable both user quota and group quota by default */
+               usrquota = QOPT_DISABLE;
+               grpquota = QOPT_DISABLE;
+       }
+
        if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
            (sb->s_feature_compat || sb->s_feature_ro_compat ||
             sb->s_feature_incompat))
@@ -424,28 +602,28 @@ static void update_feature_set(ext2_filsys fs, char *features)
 
        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));
-       }
+                       EXT2_FEATURE_RO_COMPAT_LARGE_FILE))
+               request_fsck_afterwards(fs);
 
        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);
+
+       return 0;
 }
 
 /*
  * Add a journal to the filesystem.
  */
-static void add_journal(ext2_filsys fs)
+static int add_journal(ext2_filsys fs)
 {
        unsigned long journal_blocks;
        errcode_t       retval;
@@ -461,11 +639,12 @@ 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);
@@ -482,9 +661,9 @@ 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);
@@ -499,7 +678,7 @@ static void add_journal(ext2_filsys fs)
                        fprintf(stderr, "\n");
                        com_err(program_name, retval,
                                _("\n\twhile trying to create journal file"));
-                       exit(1);
+                       return retval;
                } else
                        fputs(_("done\n"), stdout);
                /*
@@ -509,15 +688,102 @@ static void add_journal(ext2_filsys fs)
                if ((mount_flags & EXT2_MF_MOUNTED) == 0)
                        fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
        }
-       print_check_message(fs);
-       return;
+       print_check_message(fs->super->s_max_mnt_count,
+                           fs->super->s_checkinterval);
+       return 0;
 
 err:
-       if (journal_device)
-               free(journal_device);
-       exit(1);
+       free(journal_device);
+       return 1;
 }
 
+void handle_quota_options(ext2_filsys fs)
+{
+       quota_ctx_t qctx;
+       errcode_t retval;
+       ext2_ino_t qf_ino;
+
+       if (!usrquota && !grpquota)
+               /* Nothing to do. */
+               return;
+
+       init_quota_context(&qctx, fs, -1);
+
+       if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) {
+               if ((qf_ino = quota_file_exists(fs, USRQUOTA, QFMT_VFS_V1)) > 0)
+                       set_sb_quota_inum(fs, qf_ino, USRQUOTA);
+               else
+                       write_quota_inode(qctx, USRQUOTA);
+       } else if (usrquota == QOPT_DISABLE) {
+               remove_quota_inode(fs, USRQUOTA);
+       }
+
+       if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) {
+               if ((qf_ino = quota_file_exists(fs, GRPQUOTA, QFMT_VFS_V1)) > 0)
+                       set_sb_quota_inum(fs, qf_ino, GRPQUOTA);
+               else
+                       write_quota_inode(qctx, GRPQUOTA);
+       } else if (grpquota == QOPT_DISABLE) {
+               remove_quota_inode(fs, GRPQUOTA);
+       }
+
+       release_quota_context(&qctx);
+
+       if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) {
+               fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA;
+               ext2fs_mark_super_dirty(fs);
+       } else if ((usrquota == QOPT_DISABLE) && (grpquota == QOPT_DISABLE)) {
+               fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
+               ext2fs_mark_super_dirty(fs);
+       }
+
+       return;
+}
+
+void parse_quota_opts(const char *opts)
+{
+       char    *buf, *token, *next, *p, *arg;
+       int     len;
+
+       len = strlen(opts);
+       buf = malloc(len+1);
+       if (!buf) {
+               fputs(_("Couldn't allocate memory to parse quota "
+                       "options!\n"), stderr);
+               exit(1);
+       }
+       strcpy(buf, opts);
+       for (token = buf; token && *token; token = next) {
+               p = strchr(token, ',');
+               next = 0;
+               if (p) {
+                       *p = 0;
+                       next = p+1;
+               }
+
+               if (strcmp(token, "usrquota") == 0) {
+                       usrquota = QOPT_ENABLE;
+               } else if (strcmp(token, "^usrquota") == 0) {
+                       usrquota = QOPT_DISABLE;
+               } else if (strcmp(token, "grpquota") == 0) {
+                       grpquota = QOPT_ENABLE;
+               } else if (strcmp(token, "^grpquota") == 0) {
+                       grpquota = QOPT_DISABLE;
+               } else {
+                       fputs(_("\nBad quota options specified.\n\n"
+                               "Following valid quota options are available "
+                               "(pass by separating with comma):\n"
+                               "\t[^]usrquota\n"
+                               "\t[^]grpquota\n"
+                               "\n\n"), stderr);
+                       free(buf);
+                       exit(1);
+               }
+       }
+       free(buf);
+}
+
+
 
 static void parse_e2label_options(int argc, char ** argv)
 {
@@ -530,16 +796,16 @@ 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_SOFTSUPP_FEATURES | EXT2_FLAG_JOURNAL_DEV_OK;
+       open_flag = EXT2_FLAG_JOURNAL_DEV_OK;
        if (argc == 3) {
                open_flag |= EXT2_FLAG_RW;
                L_flag = 1;
                new_label = argv[2];
-       } else 
+       } else
                print_label++;
 }
 
@@ -576,192 +842,196 @@ static time_t parse_time(char *str)
 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 = EXT2_FLAG_SOFTSUPP_FEATURES;
+       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: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;
+       while ((c = getopt(argc, argv, "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:Q: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 '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 {
-                                               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':
-                                       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;
+                       case '\0':
+                       case 'd':
+                       case 'D': /* days */
+                               interval *= 86400;
+                               if (*tmp != '\0')
                                        tmp++;
-                                       break;
-                               }
-                               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) {
-                                       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;
+                       case 'M': /* months! */
+                               interval *= 86400 * 30;
+                               tmp++;
                                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;
+                       case 'w':
+                       case 'W': /* weeks */
+                               interval *= 86400 * 7;
+                               tmp++;
                                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) {
+                               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 'Q':
+                       Q_flag = 1;
+                       parse_quota_opts(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 {
@@ -770,41 +1040,41 @@ 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;
-                       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:
+               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();
@@ -815,12 +1085,13 @@ 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;
@@ -832,24 +1103,19 @@ 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
 
-/*
- * Note!  If any extended options are incompatible with the
- * intersection of the SOFTSUPP features and those features explicitly
- * enabled for tune2fs, there needs to be an explicit test for them
- * here.
- */
-static void parse_extended_opts(ext2_filsys fs, const char *opts)
+static int parse_extended_opts(ext2_filsys fs, const char *opts)
 {
        char    *buf, *token, *next, *p, *arg;
-       int     len;
+       int     len, hash_alg;
        int     r_usage = 0;
 
        len = strlen(opts);
@@ -857,7 +1123,7 @@ static void parse_extended_opts(ext2_filsys fs, const char *opts)
        if (!buf) {
                fprintf(stderr,
                        _("Couldn't allocate memory to parse options!\n"));
-               exit(1);
+               return 1;
        }
        strcpy(buf, opts);
        for (token = buf; token && *token; token = next) {
@@ -872,7 +1138,37 @@ static void parse_extended_opts(ext2_filsys fs, const char *opts)
                        *arg = 0;
                        arg++;
                }
-               if (!strcmp(token, "test_fs")) {
+               if (strcmp(token, "clear-mmp") == 0 ||
+                   strcmp(token, "clear_mmp") == 0) {
+                       clear_mmp = 1;
+               } else if (strcmp(token, "mmp_update_interval") == 0) {
+                       unsigned long interval;
+                       if (!arg) {
+                               r_usage++;
+                               continue;
+                       }
+                       interval = strtoul(arg, &p, 0);
+                       if (*p) {
+                               fprintf(stderr,
+                                       _("Invalid mmp_update_interval: %s\n"),
+                                       arg);
+                               r_usage++;
+                               continue;
+                       }
+                       if (interval == 0) {
+                               interval = EXT4_MMP_UPDATE_INTERVAL;
+                       } else if (interval > EXT4_MMP_MAX_UPDATE_INTERVAL) {
+                               fprintf(stderr,
+                                       _("mmp_update_interval too big: %lu\n"),
+                                       interval);
+                               r_usage++;
+                               continue;
+                       }
+                       printf(_("Setting multiple mount protection update "
+                                "interval to %lu seconds\n"), interval);
+                       fs->super->s_mmp_update_interval = interval;
+                       ext2fs_mark_super_dirty(fs);
+               } else if (!strcmp(token, "test_fs")) {
                        fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
                        printf("Setting test filesystem flag\n");
                        ext2fs_mark_super_dirty(fs);
@@ -886,9 +1182,9 @@ static void parse_extended_opts(ext2_filsys fs, const char *opts)
                                continue;
                        }
                        stride = strtoul(arg, &p, 0);
-                       if (*p || (stride == 0)) {
+                       if (*p) {
                                fprintf(stderr,
-                                      _("Invalid RAID stride: %s\n"),
+                                       _("Invalid RAID stride: %s\n"),
                                        arg);
                                r_usage++;
                                continue;
@@ -901,7 +1197,7 @@ static void parse_extended_opts(ext2_filsys fs, const char *opts)
                                continue;
                        }
                        stripe_width = strtoul(arg, &p, 0);
-                       if (*p || (stripe_width == 0)) {
+                       if (*p) {
                                fprintf(stderr,
                                        _("Invalid RAID stripe-width: %s\n"),
                                        arg);
@@ -909,7 +1205,37 @@ static void parse_extended_opts(ext2_filsys fs, const char *opts)
                                continue;
                        }
                        stripe_width_set = 1;
-               } else 
+               } 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 if (!strcmp(token, "mount_opts")) {
+                       if (!arg) {
+                               r_usage++;
+                               continue;
+                       }
+                       if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) {
+                               fprintf(stderr,
+                                       "Extended mount options too long\n");
+                               continue;
+                       }
+                       ext_mount_opts = strdup(arg);
+               } else
                        r_usage++;
        }
        if (r_usage) {
@@ -918,81 +1244,146 @@ static void parse_extended_opts(ext2_filsys fs, const char *opts)
                        "and may take an argument which\n"
                        "\tis set off by an equals ('=') sign.\n\n"
                        "Valid extended options are:\n"
+                       "\tclear_mmp\n"
+                       "\thash_alg=<hash algorithm>\n"
+                       "\tmount_opts=<extended default mount options>\n"
                        "\tstride=<RAID per-disk chunk size in blocks>\n"
-                       "\tstripe-width=<RAID stride*data disks in blocks>\n"
+                       "\tstripe_width=<RAID stride*data disks in blocks>\n"
                        "\ttest_fs\n"
                        "\t^test_fs\n"));
                free(buf);
-               exit(1);
+               return 1;
        }
        free(buf);
-}      
 
-static int get_move_bitmap(ext2_filsys fs, int new_ino_blks_per_grp,
-                                       ext2fs_block_bitmap bmap)
+       return 0;
+}
+
+/*
+ * 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;
-       blk_t j, needed_blocks = 0;
-       blk_t start_blk, end_blk;
+       int retval;
+       ext2_badblocks_list bb_list = 0;
+       blk64_t j, needed_blocks = 0;
+       blk64_t start_blk, end_blk;
 
-       for (i = 0; i < fs->group_desc_count; i++) {
+       retval = ext2fs_read_bb_inode(fs, &bb_list);
+       if (retval)
+               return retval;
 
-               start_blk = fs->group_desc[i].bg_inode_table +
+       for (i = 0; i < fs->group_desc_count; i++) {
+               start_blk = ext2fs_inode_table_loc(fs, i) +
                                        fs->inode_blocks_per_group;
 
-               end_blk = fs->group_desc[i].bg_inode_table +
+               end_blk = ext2fs_inode_table_loc(fs, i) +
                                        new_ino_blks_per_grp;
 
                for (j = start_blk; j < end_blk; j++) {
-
-                       if (ext2fs_test_block_bitmap(fs->block_map, j)) {
-                               /* FIXME!!
-                                * What happens if the block is marked
-                                * as a bad block
+                       if (ext2fs_test_block_bitmap2(fs->block_map, j)) {
+                               /*
+                                * IF the block is a bad block we fail
                                 */
-                               ext2fs_mark_block_bitmap(bmap, j);
-                               needed_blocks++;
+                               if (ext2fs_badblocks_list_test(bb_list, j)) {
+                                       ext2fs_badblocks_list_free(bb_list);
+                                       return ENOSPC;
+                               }
+
+                               ext2fs_mark_block_bitmap2(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);
+                               ext2fs_mark_block_bitmap2(fs->block_map, j);
                        }
                }
+               needed_blocks += end_blk - start_blk;
        }
 
-       if (needed_blocks > fs->super->s_free_blocks_count ) {
+       ext2fs_badblocks_list_free(bb_list);
+       if (needed_blocks > ext2fs_free_blocks_count(fs->super))
                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 (ext2fs_block_bitmap_loc(fs, group) == blk)
+               return 1;
+       if (ext2fs_inode_bitmap_loc(fs, group) == 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;
+}
+
 static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
 {
+
        char *buf;
+       dgrp_t group = 0;
        errcode_t retval;
-       blk_t blk, new_blk;
+       int meta_data = 0;
+       blk64_t blk, new_blk, goal;
        struct blk_move *bmv;
 
-
        retval = ext2fs_get_mem(fs->blocksize, &buf);
        if (retval)
                return retval;
 
-       for (blk = fs->super->s_first_data_block;
-                       blk < fs->super->s_blocks_count; blk++) {
-
-               if (!ext2fs_test_block_bitmap(bmap, blk))
+       for (new_blk = blk = fs->super->s_first_data_block;
+            blk < ext2fs_blocks_count(fs->super); blk++) {
+               if (!ext2fs_test_block_bitmap2(bmap, blk))
                        continue;
 
-               retval = ext2fs_new_block(fs, blk, NULL, &new_blk);
+               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_block2(fs, group);
+                       meta_data = 1;
+
+               } else {
+                       goal = new_blk;
+               }
+               retval = ext2fs_new_block2(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);
+               ext2fs_mark_block_bitmap2(fs->block_map, new_blk);
 
                /* Add it to block move list */
                retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
@@ -1004,11 +1395,11 @@ static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
 
                list_add(&(bmv->list), &blk_move_list);
 
-               retval = io_channel_read_blk(fs->io, blk, 1, buf);
+               retval = io_channel_read_blk64(fs->io, blk, 1, buf);
                if (retval)
                        goto err_out;
 
-               retval = io_channel_write_blk(fs->io, new_blk, 1, buf);
+               retval = io_channel_write_blk64(fs->io, new_blk, 1, buf);
                if (retval)
                        goto err_out;
        }
@@ -1018,13 +1409,12 @@ err_out:
        return retval;
 }
 
-static blk_t transalate_block(blk_t blk)
+static blk64_t translate_block(blk64_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;
@@ -1033,17 +1423,20 @@ static blk_t transalate_block(blk_t blk)
        return 0;
 }
 
-static int process_block(ext2_filsys fs, blk_t *block_nr,
-                        e2_blkcnt_t blockcnt,
-                        blk_t ref_block EXT2FS_ATTR((unused)),
+static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
+                        blk64_t *block_nr,
+                        e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
+                        blk64_t ref_block EXT2FS_ATTR((unused)),
                         int ref_offset EXT2FS_ATTR((unused)),
-                        void *priv_data EXT2FS_ATTR((unused)))
+                        void *priv_data)
 {
        int ret = 0;
-       blk_t new_blk;
+       blk64_t new_blk;
+       ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data;
 
-
-       new_blk = transalate_block(*block_nr);
+       if (!ext2fs_test_block_bitmap2(bmap, *block_nr))
+               return 0;
+       new_blk = translate_block(*block_nr);
        if (new_blk) {
                *block_nr = new_blk;
                /*
@@ -1055,11 +1448,11 @@ static int process_block(ext2_filsys fs, blk_t  *block_nr,
        return ret;
 }
 
-static int inode_scan_and_fix(ext2_filsys fs)
+static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
 {
        errcode_t retval = 0;
        ext2_ino_t ino;
-       blk_t blk;
+       blk64_t blk;
        char *block_buf = 0;
        struct ext2_inode inode;
        ext2_inode_scan scan = NULL;
@@ -1073,7 +1466,6 @@ static int inode_scan_and_fix(ext2_filsys fs)
                goto err_out;
 
        while (1) {
-
                retval = ext2fs_get_next_inode(scan, &ino, &inode);
                if (retval)
                        goto err_out;
@@ -1091,13 +1483,14 @@ static int inode_scan_and_fix(ext2_filsys fs)
                 * Do we need to fix this ??
                 */
 
-               if (inode.i_file_acl) {
-
-                       blk = transalate_block(inode.i_file_acl);
+               if (ext2fs_file_acl_block(&inode) &&
+                   ext2fs_test_block_bitmap2(bmap,
+                                             ext2fs_file_acl_block(&inode))) {
+                       blk = translate_block(ext2fs_file_acl_block(&inode));
                        if (!blk)
                                continue;
 
-                       inode.i_file_acl = blk;
+                       ext2fs_file_acl_block_set(&inode, blk);
 
                        /*
                         * Write the inode to disk so that inode table
@@ -1111,9 +1504,8 @@ static int inode_scan_and_fix(ext2_filsys fs)
                if (!ext2fs_inode_has_valid_blocks(&inode))
                        continue;
 
-               retval = ext2fs_block_iterate2(fs, ino, 0,
-                                               block_buf, process_block,
-                                               0);
+               retval = ext2fs_block_iterate3(fs, ino, 0, block_buf,
+                                              process_block, bmap);
                if (retval)
                        goto err_out;
 
@@ -1123,26 +1515,56 @@ 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 = ext2fs_block_bitmap_loc(fs, i);
+               if (ext2fs_test_block_bitmap2(bmap, blk)) {
+                       new_blk = translate_block(blk);
+                       if (!new_blk)
+                               continue;
+                       ext2fs_block_bitmap_loc_set(fs, i, new_blk);
+               }
+
+               blk = ext2fs_inode_bitmap_loc(fs, i);
+               if (ext2fs_test_block_bitmap2(bmap, blk)) {
+                       new_blk = translate_block(blk);
+                       if (!new_blk)
+                               continue;
+                       ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
+               }
+       }
+       return 0;
 }
 
-static int expand_inode_table(ext2_filsys fs, unsigned long int new_inode_size)
+static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
 {
        dgrp_t i;
-       blk_t blk;
+       blk64_t blk;
        errcode_t retval;
-       int new_ino_blks_per_grp, j;
+       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 int old_inode_size;
+       unsigned long old_ino_size;
        int old_itable_size, new_itable_size;
 
        old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
-       old_inode_size = EXT2_INODE_SIZE(fs->super);
+       old_ino_size = EXT2_INODE_SIZE(fs->super);
 
        new_ino_blks_per_grp = ext2fs_div_ceil(
                                        EXT2_INODES_PER_GROUP(fs->super) *
-                                       new_inode_size,
+                                       new_ino_size,
                                        fs->blocksize);
 
        new_itable_size = new_ino_blks_per_grp * fs->blocksize;
@@ -1159,29 +1581,27 @@ static int expand_inode_table(ext2_filsys fs, unsigned long int new_inode_size)
        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,
+               blk = ext2fs_inode_table_loc(fs, i);
+               retval = io_channel_read_blk64(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);
 
-                       memcpy(new_itable, old_itable, old_inode_size);
-
-                       memset(new_itable+old_inode_size, 0,
-                                       new_inode_size - old_inode_size);
+                       memset(new_itable+old_ino_size, 0,
+                                       new_ino_size - old_ino_size);
 
-                       new_itable +=  new_inode_size;
-                       old_itable += old_inode_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,
+               retval = io_channel_write_blk64(fs->io, blk,
                                        new_ino_blks_per_grp, new_itable);
                if (retval)
                        goto err_out;
@@ -1189,7 +1609,7 @@ static int expand_inode_table(ext2_filsys fs, unsigned long int new_inode_size)
 
        /* Update the meta data */
        fs->inode_blocks_per_group = new_ino_blks_per_grp;
-       fs->super->s_inode_size = new_inode_size;
+       fs->super->s_inode_size = new_ino_size;
 
 err_out:
        if (old_itable)
@@ -1199,12 +1619,11 @@ err_out:
                ext2fs_free_mem(&new_itable);
 
        return retval;
-
 }
 
 static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
 {
-       blk_t           blk;
+       blk64_t         blk;
        ext2_ino_t      ino;
        unsigned int    group = 0;
        unsigned int    count = 0;
@@ -1215,21 +1634,22 @@ static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
         * 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)) {
+            blk < ext2fs_blocks_count(fs->super); blk++) {
+               if (!ext2fs_fast_test_block_bitmap2(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;
+                   (blk == ext2fs_blocks_count(fs->super)-1)) {
+                       ext2fs_bg_free_blocks_count_set(fs, group++,
+                                                       group_free);
                        count = 0;
                        group_free = 0;
                }
        }
-       fs->super->s_free_blocks_count = total_free;
+       total_free = EXT2FS_C2B(fs, total_free);
+       ext2fs_free_blocks_count_set(fs->super, total_free);
 
        /*
         * Next, calculate the inode statistics
@@ -1241,15 +1661,15 @@ static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
 
        /* 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)) {
+               if (!ext2fs_fast_test_inode_bitmap2(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;
+                       ext2fs_bg_free_inodes_count_set(fs, group++,
+                                                       group_free);
                        count = 0;
                        group_free = 0;
                }
@@ -1263,39 +1683,41 @@ static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
        for (pos = (head)->next, pnext = pos->next; pos != (head); \
             pos = pnext, pnext = pos->next)
 
-static void free_blk_move_list()
+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 ;
+       return;
 }
-static int resize_inode(ext2_filsys fs, unsigned long int new_inode_size)
+
+static int resize_inode(ext2_filsys fs, unsigned long new_size)
 {
        errcode_t retval;
        int new_ino_blks_per_grp;
        ext2fs_block_bitmap bmap;
 
-       if (new_inode_size <= EXT2_INODE_SIZE(fs->super)) {
-               fprintf(stderr, _("New inode size too small\n"));
-               return EXT2_ET_INVALID_ARGUMENT;
+       retval = ext2fs_read_inode_bitmap(fs);
+       if (retval) {
+               fputs(_("Failed to read inode bitmap\n"), stderr);
+               return retval;
+       }
+       retval = ext2fs_read_block_bitmap(fs);
+       if (retval) {
+               fputs(_("Failed to read blockbitmap\n"), stderr);
+               return retval;
        }
-
-       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_inode_size,
+                                       new_size,
                                        fs->blocksize);
 
        /* We may change the file system.
@@ -1306,24 +1728,33 @@ static int resize_inode(ext2_filsys fs, unsigned long int new_inode_size)
 
        retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
                                                &bmap);
-       if (retval)
+       if (retval) {
+               fputs(_("Failed to allocate block bitmap when "
+                               "increasing inode size\n"), stderr);
                return retval;
-
-       retval = get_move_bitmap(fs, new_ino_blks_per_grp, bmap);
-       if (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)
+       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 = inode_scan_and_fix(fs);
+       retval = group_desc_scan_and_fix(fs, bmap);
        if (retval)
-               goto err_out;
+               goto err_out_undo;
 
-       retval = expand_inode_table(fs, new_inode_size);
+       retval = expand_inode_table(fs, new_size);
        if (retval)
-               goto err_out;
+               goto err_out_undo;
 
        ext2fs_calculate_summary_stats(fs);
 
@@ -1337,13 +1768,23 @@ err_out:
        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;
-       char *tdb_dir, tdb_file[PATH_MAX];
-       char *device_name, *tmp_name;
+       const char *tdb_dir;
+       char *tdb_file;
+       char *dev_name, *tmp_name;
 
 #if 0 /* FIXME!! */
        /*
@@ -1355,17 +1796,26 @@ static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
                                        &tdb_dir);
 #endif
        tmp_name = strdup(name);
-       device_name = basename(tmp_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";
+               tdb_dir = "/var/lib/e2fsprogs";
 
        if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
            access(tdb_dir, W_OK))
                return 0;
 
-       sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, device_name);
+       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) {
@@ -1373,6 +1823,7 @@ static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
                        com_err(program_name, retval,
                                _("while trying to delete %s"),
                                tdb_file);
+                       free(tdb_file);
                        return retval;
                }
        }
@@ -1380,20 +1831,21 @@ static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
        set_undo_io_backing_manager(*io_ptr);
        *io_ptr = undo_io_manager;
        set_undo_io_backup_file(tdb_file);
-       printf(_("To undo the tune2fs operations please run "
-                "the command\n    undoe2fs %s %s\n\n"),
+       printf(_("To undo the tune2fs operation please run "
+                "the command\n    e2undo %s %s\n\n"),
                 tdb_file, name);
-err_out:
+       free(tdb_file);
        free(tmp_name);
        return retval;
 }
 
-int main (int argc, char ** argv)
+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;
+       int rc = 0;
 
 #ifdef ENABLE_NLS
        setlocale(LC_MESSAGES, "");
@@ -1405,61 +1857,111 @@ int main (int argc, char ** argv)
                program_name = *argv;
        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
+               io_ptr = unix_io_manager;
+
+retry_open:
+       if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag)
+               open_flag |= EXT2_FLAG_SKIP_MMP;
+
+       open_flag |= EXT2_FLAG_64BITS;
+
+       /* keep the filesystem struct around to dump MMP data */
+       open_flag |= EXT2_FLAG_NOFREE_ON_ERROR;
+
+       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 == EXT2_ET_MMP_FSCK_ON ||
+                   retval == EXT2_ET_MMP_UNKNOWN_SEQ)
+                       dump_mmp_msg(fs->mmp_buf,
+                                    _("If you are sure the filesystem "
+                                      "is not in use on any node, run:\n"
+                                      "'tune2fs -f -E clear_mmp {device}'\n"));
+               else if (retval == EXT2_ET_MMP_FAILED)
+                       dump_mmp_msg(fs->mmp_buf, NULL);
+               else if (retval == EXT2_ET_MMP_MAGIC_INVALID)
+                       fprintf(stderr,
+                               _("MMP block magic is bad. Try to fix it by "
+                                 "running:\n'e2fsck -f %s'\n"), device_name);
+               else if (retval != EXT2_ET_MMP_FAILED)
+                       fprintf(stderr,
+                            _("Couldn't find valid filesystem superblock.\n"));
+
+               ext2fs_free(fs);
+               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);
+                       rc = 1;
+                       goto closefs;
+               }
+               if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
+                       fprintf(stderr, _("Shrinking the inode size is "
+                                         "not supported\n"));
+                       rc = 1;
+                       goto closefs;
+               }
 
-       if (I_flag) {
                /*
                 * 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 (retval) {
+                       rc = 1;
+                       goto closefs;
+               }
+               if (io_ptr != io_ptr_orig) {
+                       ext2fs_close(fs);
+                       goto 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);
-               fprintf(stderr,
-                       _("Couldn't find valid filesystem superblock.\n"));
-               exit(1);
-       }
        sb = fs->super;
        fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
-       if ((sb->s_feature_incompat & !EXT2_TUNE2FS_INCOMPAT) ||
-           (sb->s_feature_ro_compat & !EXT2_TUNE2FS_RO_COMPAT)) {
-               fprintf(stderr, 
-                       _("Filesystem %s has unsupported features enabled.\n"),
-                       device_name);
-               exit(1);
-       }
+
        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);
+               goto closefs;
        }
+
        retval = ext2fs_check_if_mounted(device_name, &mount_flags);
        if (retval) {
                com_err("ext2fs_check_if_mount", retval,
                        _("while determining whether %s is mounted."),
                        device_name);
-               exit(1);
+               rc = 1;
+               goto closefs;
        }
        /* Normally we only need to write out the superblock */
        fs->flags |= EXT2_FLAG_SUPER_ONLY;
@@ -1467,47 +1969,56 @@ 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) {
+               if (interval >= (1ULL << 32)) {
+                       com_err(program_name, 0,
+                               _("interval between checks is too big (%lu)"),
+                               interval);
+                       rc = 1;
+                       goto closefs;
+               }
                sb->s_checkinterval = interval;
                ext2fs_mark_super_dirty(fs);
-               printf (_("Setting interval between checks to %lu seconds\n"), interval);
+               printf(_("Setting interval between checks to %lu seconds\n"),
+                      interval);
        }
        if (m_flag) {
-               sb->s_r_blocks_count = e2p_percent(reserved_ratio,
-                                                  sb->s_blocks_count);
+               ext2fs_r_blocks_count_set(sb, reserved_ratio *
+                                         ext2fs_blocks_count(sb) / 100.0);
                ext2fs_mark_super_dirty(fs);
-               printf (_("Setting reserved blocks percentage to %g%% (%u blocks)\n"),
-                       reserved_ratio, sb->s_r_blocks_count);
+               printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"),
+                       reserved_ratio, ext2fs_r_blocks_count(sb));
        }
        if (r_flag) {
-               if (reserved_blocks >= sb->s_blocks_count/2) {
-                       com_err (program_name, 0,
-                                _("reserved blocks count is too big (%lu)"),
-                                reserved_blocks);
-                       exit (1);
+               if (reserved_blocks > ext2fs_blocks_count(sb)/2) {
+                       com_err(program_name, 0,
+                               _("reserved blocks count is too big (%llu)"),
+                               reserved_blocks);
+                       rc = 1;
+                       goto closefs;
                }
-               sb->s_r_blocks_count = reserved_blocks;
+               ext2fs_r_blocks_count_set(sb, reserved_blocks);
                ext2fs_mark_super_dirty(fs);
-               printf (_("Setting reserved blocks count to %lu\n"),
-                       reserved_blocks);
+               printf(_("Setting reserved blocks count to %llu\n"),
+                      reserved_blocks);
        }
        if (s_flag == 1) {
                if (sb->s_feature_ro_compat &
@@ -1526,7 +2037,8 @@ int main (int argc, char ** argv)
        if (s_flag == 0) {
                fputs(_("\nClearing the sparse superflag not supported.\n"),
                      stderr);
-               exit(1);
+               rc = 1;
+               goto closefs;
        }
        if (T_flag) {
                sb->s_lastcheck = last_check_time;
@@ -1537,11 +2049,11 @@ 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,
@@ -1554,16 +2066,64 @@ int main (int argc, char ** argv)
                        sizeof(sb->s_last_mounted));
                ext2fs_mark_super_dirty(fs);
        }
-       if (mntopts_cmd)
-               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 (mntopts_cmd) {
+               rc = update_mntopts(fs, mntopts_cmd);
+               if (rc)
+                       goto closefs;
+       }
+       if (features_cmd) {
+               rc = update_feature_set(fs, features_cmd);
+               if (rc)
+                       goto closefs;
+       }
+       if (extended_cmd) {
+               rc = parse_extended_opts(fs, extended_cmd);
+               if (rc)
+                       goto closefs;
+               if (clear_mmp && !f_flag) {
+                       fputs(_("Error in using clear_mmp. "
+                               "It must be used with -f\n"),
+                             stderr);
+                       goto closefs;
+               }
+       }
+       if (clear_mmp) {
+               rc = ext2fs_mmp_clear(fs);
+               goto closefs;
+       }
+       if (journal_size || journal_device) {
+               rc = add_journal(fs);
+               if (rc)
+                       goto closefs;
+       }
+
+       if (Q_flag) {
+               if (mount_flags & EXT2_MF_MOUNTED) {
+                       fputs(_("The quota feature may only be changed when "
+                               "the filesystem is unmounted.\n"), stderr);
+                       rc = 1;
+                       goto closefs;
+               }
+               handle_quota_options(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);
@@ -1573,7 +2133,13 @@ int main (int argc, char ** argv)
                        uuid_generate(sb->s_uuid);
                } else if (uuid_parse(new_UUID, sb->s_uuid)) {
                        com_err(program_name, 0, _("Invalid UUID format\n"));
-                       exit(1);
+                       rc = 1;
+                       goto closefs;
+               }
+               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);
        }
@@ -1582,25 +2148,35 @@ int main (int argc, char ** argv)
                        fputs(_("The inode size may only be "
                                "changed when the filesystem is "
                                "unmounted.\n"), stderr);
-                       exit(1);
+                       rc = 1;
+                       goto closefs;
+               }
+               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);
+                       rc = 1;
+                       goto closefs;
                }
                /*
                 * 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)) {
-                       fputs(_("Error in resizing the inode size.\n"
-                               "Run undoe2fs to undo the "
-                               "file system changes. \n"), stderr);
-               } else {
-                       printf (_("Setting inode size  %d\n"),
+               if (resize_inode(fs, new_inode_size) == 0) {
+                       printf(_("Setting inode size %lu\n"),
                                                        new_inode_size);
+               } else {
+                       printf(_("Failed to change inode size\n"));
+                       rc = 1;
+                       goto closefs;
                }
        }
 
        if (l_flag)
-               list_super (sb);
+               list_super(sb);
        if (stride_set) {
                sb->s_raid_stride = stride;
                ext2fs_mark_super_dirty(fs);
@@ -1611,6 +2187,23 @@ int main (int argc, char ** argv)
                ext2fs_mark_super_dirty(fs);
                printf(_("Setting stripe width to %d\n"), stripe_width);
        }
+       if (ext_mount_opts) {
+               strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts,
+                       sizeof(fs->super->s_mount_opts));
+               fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0;
+               ext2fs_mark_super_dirty(fs);
+               printf(_("Setting extended default mount options to '%s'\n"),
+                      ext_mount_opts);
+               free(ext_mount_opts);
+       }
+       free(device_name);
        remove_error_table(&et_ext2_error_table);
-       return (ext2fs_close (fs) ? 1 : 0);
+
+closefs:
+       if (rc) {
+               ext2fs_mmp_stop(fs);
+               exit(1);
+       }
+
+       return (ext2fs_close(fs) ? 1 : 0);
 }