]> git.ipfire.org Git - thirdparty/e2fsprogs.git/blobdiff - misc/tune2fs.c
tune2fs, mke2fs: add the ability to control the location of the journal
[thirdparty/e2fsprogs.git] / misc / tune2fs.c
index 41a063826659f0ba0a024f1bc9da45c252d0e4c2..64a76f1e4864889ef1c0561ee3e6cda67adaf248 100644 (file)
@@ -26,7 +26,7 @@
  */
 
 #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
@@ -40,6 +40,11 @@ extern int optind;
 #ifdef HAVE_STDLIB_H
 #include <stdlib.h>
 #endif
+#ifdef HAVE_STRINGS_H
+#include <strings.h>   /* for strcasecmp() */
+#else
+#define _BSD_SOURCE    /* for inclusion of strcasecmp() via <string.h> */
+#endif
 #include <string.h>
 #include <time.h>
 #include <unistd.h>
@@ -55,21 +60,29 @@ 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"
 
+#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;
 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;
@@ -80,16 +93,19 @@ static int stride, stripe_width;
 static int stride_set, stripe_width_set;
 static char *extended_cmd;
 static unsigned long new_inode_size;
+static char *ext_mount_opts;
+static int usrquota, grpquota;
 
 int journal_size, journal_flags;
 char *journal_device;
+static blk64_t journal_location = ~0LL;
 
 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;
 };
 
 
@@ -106,10 +122,13 @@ 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"
+#ifdef CONFIG_QUOTA
+                 "\t[-Q quota_options]\n"
+#endif
                  "\t[-E extended-option[,...]] [-T last_check_time] "
                  "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name);
        exit(1);
@@ -122,13 +141,17 @@ 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 |
+#ifdef CONFIG_QUOTA
+               EXT4_FEATURE_RO_COMPAT_QUOTA |
+#endif
                EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
 };
 
@@ -139,19 +162,23 @@ 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_HUGE_FILE|
                EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
                EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
+#ifdef CONFIG_QUOTA
+               EXT4_FEATURE_RO_COMPAT_QUOTA |
+#endif
                EXT4_FEATURE_RO_COMPAT_GDT_CSUM
 };
 
 /*
  * 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;
@@ -172,7 +199,7 @@ 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
@@ -186,26 +213,27 @@ static void remove_journal_device(ext2_filsys fs)
                             EXT2_FLAG_JOURNAL_DEV_OK, 0,
                             fs->blocksize, io_ptr, &jfs);
        if (retval) {
-               com_err(program_name, retval,
+               com_err(program_name, retval, "%s",
                        _("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))) {
-               com_err(program_name, retval,
+       if ((retval = io_channel_read_blk64(jfs->io, 1, -1024, buf))) {
+               com_err(program_name, retval, "%s",
                        _("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;
        }
@@ -213,8 +241,7 @@ static void remove_journal_device(ext2_filsys fs)
        /* Find the filesystem UUID */
        nr_users = ntohl(jsb->s_nr_users);
        for (i = 0; i < nr_users; i++) {
-               if (memcmp(fs->super->s_uuid,
-                          &jsb->s_users[i*16], 16) == 0)
+               if (memcmp(fs->super->s_uuid, &jsb->s_users[i * 16], 16) == 0)
                        break;
        }
        if (i >= nr_users) {
@@ -225,11 +252,11 @@ static void remove_journal_device(ext2_filsys fs)
        }
        nr_users--;
        for (i = 0; i < nr_users; i++)
-               memcpy(&jsb->s_users[i*16], &jsb->s_users[(i+1)*16], 16);
+               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;
@@ -239,37 +266,43 @@ 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;
@@ -277,24 +310,24 @@ static void remove_journal_inode(ext2_filsys fs)
 
        retval = ext2fs_read_inode(fs, ino,  &inode);
        if (retval) {
-               com_err(program_name, retval,
+               com_err(program_name, retval, "%s",
                        _("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,
+                       com_err(program_name, retval, "%s",
                                _("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,
+                       com_err(program_name, retval, "%s",
                                _("while clearing journal inode"));
-                       exit(1);
+                       return retval;
                }
                memset(&inode, 0, sizeof(inode));
                ext2fs_mark_bb_dirty(fs);
@@ -303,36 +336,64 @@ static void remove_journal_inode(ext2_filsys fs)
                inode.i_flags &= ~EXT2_IMMUTABLE_FL;
        retval = ext2fs_write_inode(fs, ino, &inode);
        if (retval) {
-               com_err(program_name, retval,
+               com_err(program_name, retval, "%s",
                        _("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;
 
        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 int check_fsck_needed(ext2_filsys fs)
+{
+       if (fs->super->s_state & EXT2_VALID_FS)
+               return 0;
+       printf("\n%s\n", _(please_fsck));
+       if (mount_flags & EXT2_MF_READONLY)
+               printf(_("(and reboot afterwards!)\n"));
+       return 1;
+}
+
+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("%s", _("(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_group_desc *gd;
        __u32           old_features[3];
+       dgrp_t          i;
        int             type_err;
        unsigned int    mask_err;
 
@@ -364,7 +425,7 @@ 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)) {
@@ -374,21 +435,88 @@ static void update_feature_set(ext2_filsys fs, char *features)
                                "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, "%s",
+                                       _("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_stats2(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)) {
@@ -414,7 +542,7 @@ 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;
                }
        }
 
@@ -426,10 +554,70 @@ static void update_feature_set(ext2_filsys fs, char *features)
                                "cleared when the filesystem is\n"
                                "unmounted or mounted "
                                "read-only.\n"), stderr);
-                       exit(1);
+                       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))
@@ -437,8 +625,6 @@ 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,
@@ -446,23 +632,21 @@ static void update_feature_set(ext2_filsys fs, char *features)
            FEATURE_CHANGED(E2P_FEATURE_COMPAT,
                            EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
            FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
-                       EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) {
-               sb->s_state &= ~EXT2_VALID_FS;
-               printf("\n%s\n", _(please_fsck));
-               if (mount_flags & EXT2_MF_READONLY)
-                       printf(_("(and reboot afterwards!)\n"));
-       }
+                       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;
@@ -511,13 +695,18 @@ static void add_journal(ext2_filsys fs)
                fflush(stdout);
                journal_blocks = figure_journal_size(journal_size, fs);
 
-               retval = ext2fs_add_journal_inode(fs, journal_blocks,
-                                                 journal_flags);
+               if (journal_location_string)
+                       journal_location =
+                               parse_num_blocks2(journal_location_string,
+                                                 fs->super->s_log_block_size);
+               retval = ext2fs_add_journal_inode2(fs, journal_blocks,
+                                                  journal_location,
+                                                  journal_flags);
                if (retval) {
                        fprintf(stderr, "\n");
-                       com_err(program_name, retval,
+                       com_err(program_name, retval, "%s",
                                _("\n\twhile trying to create journal file"));
-                       exit(1);
+                       return retval;
                } else
                        fputs(_("done\n"), stdout);
                /*
@@ -527,14 +716,109 @@ 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:
        free(journal_device);
-       exit(1);
+       return 1;
+}
+
+static void handle_quota_options(ext2_filsys fs)
+{
+       quota_ctx_t qctx;
+       ext2_ino_t qf_ino;
+
+       if (!usrquota && !grpquota)
+               /* Nothing to do. */
+               return;
+
+       quota_init_context(&qctx, fs, -1);
+
+       if (usrquota == QOPT_ENABLE || grpquota == QOPT_ENABLE)
+               quota_compute_usage(qctx);
+
+       if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) {
+               if ((qf_ino = quota_file_exists(fs, USRQUOTA,
+                                               QFMT_VFS_V1)) > 0)
+                       quota_update_limits(qctx, qf_ino, USRQUOTA);
+               quota_write_inode(qctx, USRQUOTA);
+       } else if (usrquota == QOPT_DISABLE) {
+               quota_remove_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)
+                       quota_update_limits(qctx, qf_ino, GRPQUOTA);
+               quota_write_inode(qctx, GRPQUOTA);
+       } else if (grpquota == QOPT_DISABLE) {
+               quota_remove_inode(fs, GRPQUOTA);
+       }
+
+       quota_release_context(&qctx);
+
+       if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) {
+               fprintf(stderr, "%s", _("\nWarning: the quota feature is still "
+                                 "under development\n"
+                                 "See https://ext4.wiki.kernel.org/"
+                                 "index.php/Quota for more information\n\n"));
+               fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA;
+               ext2fs_mark_super_dirty(fs);
+       } else if (!fs->super->s_usr_quota_inum &&
+                  !fs->super->s_grp_quota_inum) {
+               fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
+               ext2fs_mark_super_dirty(fs);
+       }
+
+       return;
 }
 
+#ifdef CONFIG_QUOTA
+static void parse_quota_opts(const char *opts)
+{
+       char    *buf, *token, *next, *p;
+       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);
+}
+#endif
 
 static void parse_e2label_options(int argc, char ** argv)
 {
@@ -596,11 +880,15 @@ static void parse_tune2fs_options(int argc, char **argv)
        char *tmp;
        struct group *gr;
        struct passwd *pw;
+       char optstring[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:";
 
+#ifdef CONFIG_QUOTA
+       strcat(optstring, "Q:");
+#endif
        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)
+       while ((c = getopt(argc, argv, optstring)) != EOF)
                switch (c) {
                case 'c':
                        max_mount_count = strtol(optarg, &tmp, 0);
@@ -738,23 +1026,29 @@ static void parse_tune2fs_options(int argc, char **argv)
                        break;
                case 'o':
                        if (mntopts_cmd) {
-                               com_err(program_name, 0,
+                               com_err(program_name, 0, "%s",
                                        _("-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,
+                               com_err(program_name, 0, "%s",
                                        _("-O may only be specified once"));
                                usage();
                        }
                        features_cmd = optarg;
                        open_flag = EXT2_FLAG_RW;
                        break;
+#ifdef CONFIG_QUOTA
+               case 'Q':
+                       Q_flag = 1;
+                       parse_quota_opts(optarg);
+                       open_flag = EXT2_FLAG_RW;
+                       break;
+#endif
                case 'r':
                        reserved_blocks = strtoul(optarg, &tmp, 0);
                        if (*tmp) {
@@ -832,7 +1126,7 @@ 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(program_name, 0, _("Unable to resolve '%s'"),
                        argv[optind]);
                exit(1);
        }
@@ -859,7 +1153,7 @@ void do_findfs(int argc, char **argv)
 }
 #endif
 
-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, hash_alg;
@@ -868,9 +1162,9 @@ static void parse_extended_opts(ext2_filsys fs, const char *opts)
        len = strlen(opts);
        buf = malloc(len+1);
        if (!buf) {
-               fprintf(stderr,
+               fprintf(stderr, "%s",
                        _("Couldn't allocate memory to parse options!\n"));
-               exit(1);
+               return 1;
        }
        strcpy(buf, opts);
        for (token = buf; token && *token; token = next) {
@@ -885,7 +1179,40 @@ 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 intv;
+                       if (!arg) {
+                               r_usage++;
+                               continue;
+                       }
+                       intv = strtoul(arg, &p, 0);
+                       if (*p) {
+                               fprintf(stderr,
+                                       _("Invalid mmp_update_interval: %s\n"),
+                                       arg);
+                               r_usage++;
+                               continue;
+                       }
+                       if (intv == 0) {
+                               intv = EXT4_MMP_UPDATE_INTERVAL;
+                       } else if (intv > EXT4_MMP_MAX_UPDATE_INTERVAL) {
+                               fprintf(stderr,
+                                       _("mmp_update_interval too big: %lu\n"),
+                                       intv);
+                               r_usage++;
+                               continue;
+                       }
+                       printf(P_("Setting multiple mount protection update "
+                                 "interval to %lu second\n",
+                                 "Setting multiple mount protection update "
+                                 "interval to %lu seconds\n", intv),
+                              intv);
+                       fs->super->s_mmp_update_interval = intv;
+                       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);
@@ -899,9 +1226,9 @@ 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;
@@ -914,7 +1241,7 @@ 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);
@@ -941,24 +1268,39 @@ static void parse_extended_opts(ext2_filsys fs, const char *opts)
                                 "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) {
-               fprintf(stderr, _("\nBad options specified.\n\n"
+               fprintf(stderr, "%s", _("\nBad options specified.\n\n"
                        "Extended options are separated by commas, "
                        "and may take an argument which\n"
                        "\tis set off by an equals ('=') sign.\n\n"
                        "Valid extended options are:\n"
+                       "\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"
-                       "\thash_alg=<hash algorithm>\n"
                        "\ttest_fs\n"
                        "\t^test_fs\n"));
                free(buf);
-               exit(1);
+               return 1;
        }
        free(buf);
+
+       return 0;
 }
 
 /*
@@ -971,22 +1313,22 @@ static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp,
        dgrp_t i;
        int retval;
        ext2_badblocks_list bb_list = 0;
-       blk_t j, needed_blocks = 0;
-       blk_t start_blk, end_blk;
+       blk64_t j, needed_blocks = 0;
+       blk64_t start_blk, end_blk;
 
        retval = ext2fs_read_bb_inode(fs, &bb_list);
        if (retval)
                return retval;
 
        for (i = 0; i < fs->group_desc_count; i++) {
-               start_blk = fs->group_desc[i].bg_inode_table +
+               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)) {
+                       if (ext2fs_test_block_bitmap2(fs->block_map, j)) {
                                /*
                                 * IF the block is a bad block we fail
                                 */
@@ -995,39 +1337,39 @@ static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp,
                                        return ENOSPC;
                                }
 
-                               ext2fs_mark_block_bitmap(bmap, j);
+                               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;
        }
 
        ext2fs_badblocks_list_free(bb_list);
-       if (needed_blocks > fs->super->s_free_blocks_count)
+       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)
+static int ext2fs_is_meta_block(ext2_filsys fs, blk64_t blk)
 {
        dgrp_t group;
-       group = ext2fs_group_of_blk(fs, blk);
-       if (fs->group_desc[group].bg_block_bitmap == blk)
+       group = ext2fs_group_of_blk2(fs, blk);
+       if (ext2fs_block_bitmap_loc(fs, group) == blk)
                return 1;
-       if (fs->group_desc[group].bg_inode_bitmap == blk)
+       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)
+static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk64_t blk)
 {
-       blk_t start_blk, end_blk;
+       blk64_t start_blk, end_blk;
        start_blk = fs->super->s_first_data_block +
                        EXT2_BLOCKS_PER_GROUP(fs->super) * group;
        /*
@@ -1044,10 +1386,10 @@ static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
 {
 
        char *buf;
-       dgrp_t group;
+       dgrp_t group = 0;
        errcode_t retval;
        int meta_data = 0;
-       blk_t blk, new_blk, goal;
+       blk64_t blk, new_blk, goal;
        struct blk_move *bmv;
 
        retval = ext2fs_get_mem(fs->blocksize, &buf);
@@ -1055,8 +1397,8 @@ static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
                return retval;
 
        for (new_blk = blk = fs->super->s_first_data_block;
-            blk < fs->super->s_blocks_count; blk++) {
-               if (!ext2fs_test_block_bitmap(bmap, blk))
+            blk < ext2fs_blocks_count(fs->super); blk++) {
+               if (!ext2fs_test_block_bitmap2(bmap, blk))
                        continue;
 
                if (ext2fs_is_meta_block(fs, blk)) {
@@ -1067,14 +1409,14 @@ static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
                         * the respective fs metadata pointers. Otherwise
                         * fail
                         */
-                       group = ext2fs_group_of_blk(fs, blk);
-                       goal = ext2fs_group_first_block(fs, group);
+                       group = ext2fs_group_of_blk2(fs, blk);
+                       goal = ext2fs_group_first_block2(fs, group);
                        meta_data = 1;
 
                } else {
                        goal = new_blk;
                }
-               retval = ext2fs_new_block(fs, goal, NULL, &new_blk);
+               retval = ext2fs_new_block2(fs, goal, NULL, &new_blk);
                if (retval)
                        goto err_out;
 
@@ -1085,7 +1427,7 @@ static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
                }
 
                /* 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);
@@ -1097,11 +1439,11 @@ 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;
        }
@@ -1111,7 +1453,7 @@ err_out:
        return retval;
 }
 
-static blk_t translate_block(blk_t blk)
+static blk64_t translate_block(blk64_t blk)
 {
        struct list_head *entry;
        struct blk_move *bmv;
@@ -1126,17 +1468,17 @@ static blk_t translate_block(blk_t blk)
 }
 
 static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
-                        blk_t *block_nr,
+                        blk64_t *block_nr,
                         e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
-                        blk_t ref_block EXT2FS_ATTR((unused)),
+                        blk64_t ref_block EXT2FS_ATTR((unused)),
                         int ref_offset 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;
 
-       if (!ext2fs_test_block_bitmap(bmap, *block_nr))
+       if (!ext2fs_test_block_bitmap2(bmap, *block_nr))
                return 0;
        new_blk = translate_block(*block_nr);
        if (new_blk) {
@@ -1154,7 +1496,7 @@ 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;
@@ -1185,13 +1527,15 @@ static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
                 * Do we need to fix this ??
                 */
 
-               if (inode.i_file_acl &&
-                   ext2fs_test_block_bitmap(bmap, inode.i_file_acl)) {
-                       blk = translate_block(inode.i_file_acl);
+               if (ext2fs_file_acl_block(fs, &inode) &&
+                   ext2fs_test_block_bitmap2(bmap,
+                                       ext2fs_file_acl_block(fs, &inode))) {
+                       blk = translate_block(ext2fs_file_acl_block(fs,
+                                                                   &inode));
                        if (!blk)
                                continue;
 
-                       inode.i_file_acl = blk;
+                       ext2fs_file_acl_block_set(fs, &inode, blk);
 
                        /*
                         * Write the inode to disk so that inode table
@@ -1202,10 +1546,10 @@ static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
                                goto err_out;
                }
 
-               if (!ext2fs_inode_has_valid_blocks(&inode))
+               if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
                        continue;
 
-               retval = ext2fs_block_iterate2(fs, ino, 0, block_buf,
+               retval = ext2fs_block_iterate3(fs, ino, 0, block_buf,
                                               process_block, bmap);
                if (retval)
                        goto err_out;
@@ -1226,23 +1570,23 @@ err_out:
 static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
 {
        dgrp_t i;
-       blk_t blk, new_blk;
+       blk64_t blk, new_blk;
 
        for (i = 0; i < fs->group_desc_count; i++) {
-               blk = fs->group_desc[i].bg_block_bitmap;
-               if (ext2fs_test_block_bitmap(bmap, blk)) {
+               blk = ext2fs_block_bitmap_loc(fs, i);
+               if (ext2fs_test_block_bitmap2(bmap, blk)) {
                        new_blk = translate_block(blk);
                        if (!new_blk)
                                continue;
-                       fs->group_desc[i].bg_block_bitmap = new_blk;
+                       ext2fs_block_bitmap_loc_set(fs, i, new_blk);
                }
 
-               blk = fs->group_desc[i].bg_inode_bitmap;
-               if (ext2fs_test_block_bitmap(bmap, blk)) {
+               blk = ext2fs_inode_bitmap_loc(fs, i);
+               if (ext2fs_test_block_bitmap2(bmap, blk)) {
                        new_blk = translate_block(blk);
                        if (!new_blk)
                                continue;
-                       fs->group_desc[i].bg_inode_bitmap = new_blk;
+                       ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
                }
        }
        return 0;
@@ -1251,7 +1595,7 @@ static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
 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;
        unsigned int j;
@@ -1282,8 +1626,8 @@ static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_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;
@@ -1302,7 +1646,7 @@ static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
                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;
@@ -1324,7 +1668,7 @@ err_out:
 
 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;
@@ -1335,21 +1679,22 @@ 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
@@ -1361,15 +1706,15 @@ 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;
                }
@@ -1402,8 +1747,16 @@ static int resize_inode(ext2_filsys fs, unsigned long new_size)
        int new_ino_blks_per_grp;
        ext2fs_block_bitmap bmap;
 
-       ext2fs_read_inode_bitmap(fs);
-       ext2fs_read_block_bitmap(fs);
+       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 block bitmap\n"), stderr);
+               return retval;
+       }
        INIT_LIST_HEAD(&blk_move_list);
 
 
@@ -1490,7 +1843,7 @@ static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
        tmp_name = strdup(name);
        if (!tmp_name) {
        alloc_fn_fail:
-               com_err(program_name, ENOMEM, 
+               com_err(program_name, ENOMEM, "%s",
                        _("Couldn't allocate memory for tdb filename\n"));
                return ENOMEM;
        }
@@ -1509,15 +1862,12 @@ static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
                goto alloc_fn_fail;
        sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
 
-       if (!access(tdb_file, F_OK)) {
-               if (unlink(tdb_file) < 0) {
-                       retval = errno;
-                       com_err(program_name, retval,
-                               _("while trying to delete %s"),
-                               tdb_file);
-                       free(tdb_file);
-                       return retval;
-               }
+       if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
+               retval = errno;
+               com_err(program_name, retval,
+                       _("while trying to delete %s"), tdb_file);
+               free(tdb_file);
+               return retval;
        }
 
        set_undo_io_backing_manager(*io_ptr);
@@ -1537,12 +1887,14 @@ int main(int argc, char **argv)
        ext2_filsys fs;
        struct ext2_super_block *sb;
        io_manager io_ptr, io_ptr_orig = NULL;
+       int rc = 0;
 
 #ifdef ENABLE_NLS
        setlocale(LC_MESSAGES, "");
        setlocale(LC_CTYPE, "");
        bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
        textdomain(NLS_CAT_NAME);
+       set_com_err_gettext(gettext);
 #endif
        if (argc && *argv)
                program_name = *argv;
@@ -1566,16 +1918,40 @@ int main(int argc, char **argv)
                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"),
+               com_err(program_name, retval,
+                       _("while trying to open %s"),
                        device_name);
-               fprintf(stderr,
-                       _("Couldn't find valid filesystem superblock.\n"));
+               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, "%s",
+                            _("Couldn't find valid filesystem superblock.\n"));
+
+               ext2fs_free(fs);
                exit(1);
        }
+       fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
 
        if (I_flag && !io_ptr_orig) {
                /*
@@ -1586,12 +1962,20 @@ retry_open:
                if (new_inode_size == EXT2_INODE_SIZE(fs->super)) {
                        fprintf(stderr, _("The inode size is already %lu\n"),
                                new_inode_size);
-                       exit(1);
+                       rc = 1;
+                       goto closefs;
                }
                if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
-                       fprintf(stderr, _("Shrinking the inode size is "
-                                         "not supported\n"));
-                       exit(1);
+                       fprintf(stderr, "%s",
+                               _("Shrinking inode size is not supported\n"));
+                       rc = 1;
+                       goto closefs;
+               }
+               if (new_inode_size > fs->blocksize) {
+                       fprintf(stderr, _("Invalid inode size %lu (max %d)\n"),
+                               new_inode_size, fs->blocksize);
+                       rc = 1;
+                       goto closefs;
                }
 
                /*
@@ -1600,8 +1984,10 @@ retry_open:
                 */
                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;
@@ -1616,7 +2002,7 @@ retry_open:
                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);
@@ -1624,7 +2010,8 @@ retry_open:
                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;
@@ -1651,29 +2038,36 @@ retry_open:
                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);
        }
        if (m_flag) {
-               sb->s_r_blocks_count = (unsigned int) (reserved_ratio *
-                                       sb->s_blocks_count / 100.0);
+               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) {
+               if (reserved_blocks > ext2fs_blocks_count(sb)/2) {
                        com_err(program_name, 0,
-                               _("reserved blocks count is too big (%lu)"),
+                               _("reserved blocks count is too big (%llu)"),
                                reserved_blocks);
-                       exit(1);
+                       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"),
+               printf(_("Setting reserved blocks count to %llu\n"),
                       reserved_blocks);
        }
        if (s_flag == 1) {
@@ -1693,7 +2087,8 @@ retry_open:
        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;
@@ -1721,14 +2116,46 @@ retry_open:
                        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;
@@ -1736,6 +2163,19 @@ retry_open:
 
                if (sb->s_feature_ro_compat &
                    EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
+                       /*
+                        * Changing the UUID requires rewriting all metadata,
+                        * which can race with a mounted fs.  Don't allow that.
+                        */
+                       if (mount_flags & EXT2_MF_MOUNTED) {
+                               fputs(_("The UUID may only be "
+                                       "changed when the filesystem is "
+                                       "unmounted.\n"), stderr);
+                               exit(1);
+                       }
+                       if (check_fsck_needed(fs))
+                               exit(1);
+
                        /*
                         * Determine if the block group checksums are
                         * correct so we know whether or not to set
@@ -1755,8 +2195,10 @@ retry_open:
                } else if (strcasecmp(new_UUID, "random") == 0) {
                        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);
+                       com_err(program_name, 0, "%s",
+                               _("Invalid UUID format\n"));
+                       rc = 1;
+                       goto closefs;
                }
                if (set_csum) {
                        for (i = 0; i < fs->group_desc_count; i++)
@@ -1770,7 +2212,8 @@ retry_open:
                        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) {
@@ -1778,7 +2221,8 @@ retry_open:
                                "filesystems with the flex_bg\n"
                                "feature enabled.\n"),
                              stderr);
-                       exit(1);
+                       rc = 1;
+                       goto closefs;
                }
                /*
                 * We want to update group descriptor also
@@ -1788,6 +2232,10 @@ retry_open:
                if (resize_inode(fs, new_inode_size) == 0) {
                        printf(_("Setting inode size %lu\n"),
                                                        new_inode_size);
+               } else {
+                       printf("%s", _("Failed to change inode size\n"));
+                       rc = 1;
+                       goto closefs;
                }
        }
 
@@ -1803,7 +2251,23 @@ retry_open:
                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);
+
+closefs:
+       if (rc) {
+               ext2fs_mmp_stop(fs);
+               exit(1);
+       }
+
        return (ext2fs_close(fs) ? 1 : 0);
 }