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po: update sr.po (from translationproject.org)
[tools/e2fsprogs.git] / e2fsck / super.c
index 6b08688..e1c3f93 100644 (file)
@@ -9,6 +9,7 @@
  * %End-Header%
  */
 
+#include "config.h"
 #ifdef HAVE_ERRNO_H
 #include <errno.h>
 #endif
 
 #define MIN_CHECK 1
 #define MAX_CHECK 2
+#define LOG2_CHECK 4
 
-static void check_super_value(e2fsck_t ctx, const char *descr,
+static int check_super_value(e2fsck_t ctx, const char *descr,
                              unsigned long value, int flags,
                              unsigned long min_val, unsigned long max_val)
 {
        struct          problem_context pctx;
 
-       if (((flags & MIN_CHECK) && (value < min_val)) ||
-           ((flags & MAX_CHECK) && (value > max_val))) {
+       if ((flags & MIN_CHECK && value < min_val) ||
+           (flags & MAX_CHECK && value > max_val) ||
+           (flags & LOG2_CHECK && (value & (value - 1)) != 0)) {
                clear_problem_context(&pctx);
                pctx.num = value;
                pctx.str = descr;
                fix_problem(ctx, PR_0_MISC_CORRUPT_SUPER, &pctx);
-               ctx->flags |= E2F_FLAG_ABORT; /* never get here! */
+               ctx->flags |= E2F_FLAG_ABORT;
+               return 0;
+       }
+       return 1;
+}
+
+static int check_super_value64(e2fsck_t ctx, const char *descr,
+                               __u64 value, int flags,
+                               __u64 min_val, __u64 max_val)
+{
+       struct          problem_context pctx;
+
+       if ((flags & MIN_CHECK && value < min_val) ||
+           (flags & MAX_CHECK && value > max_val) ||
+           (flags & LOG2_CHECK && (value & (value - 1)) != 0)) {
+               clear_problem_context(&pctx);
+               pctx.num = value;
+               pctx.str = descr;
+               fix_problem(ctx, PR_0_MISC_CORRUPT_SUPER, &pctx);
+               ctx->flags |= E2F_FLAG_ABORT;
+               return 0;
        }
+       return 1;
 }
 
 /*
@@ -51,19 +75,22 @@ struct process_block_struct {
        int             truncated_blocks;
        int             abort;
        errcode_t       errcode;
+       blk64_t last_cluster;
+       struct ext2_inode_large *inode;
 };
 
 static int release_inode_block(ext2_filsys fs,
-                              blk_t    *block_nr,
+                              blk64_t  *block_nr,
                               e2_blkcnt_t blockcnt,
-                              blk_t    ref_blk EXT2FS_ATTR((unused)),
+                              blk64_t  ref_blk EXT2FS_ATTR((unused)),
                               int      ref_offset EXT2FS_ATTR((unused)),
                               void *priv_data)
 {
        struct process_block_struct *pb;
        e2fsck_t                ctx;
        struct problem_context  *pctx;
-       blk_t                   blk = *block_nr;
+       blk64_t                 blk = *block_nr;
+       blk64_t                 cluster = EXT2FS_B2C(fs, *block_nr);
        int                     retval = 0;
 
        pb = (struct process_block_struct *) priv_data;
@@ -73,11 +100,16 @@ static int release_inode_block(ext2_filsys fs,
        pctx->blk = blk;
        pctx->blkcount = blockcnt;
 
-       if (HOLE_BLKADDR(blk))
+       if (blk == 0)
+               return 0;
+
+       if (pb->last_cluster == cluster)
                return 0;
 
+       pb->last_cluster = cluster;
+
        if ((blk < fs->super->s_first_data_block) ||
-           (blk >= fs->super->s_blocks_count)) {
+           (blk >= ext2fs_blocks_count(fs->super))) {
                fix_problem(ctx, PR_0_ORPHAN_ILLEGAL_BLOCK_NUM, pctx);
        return_abort:
                pb->abort = 1;
@@ -141,7 +173,10 @@ static int release_inode_block(ext2_filsys fs,
                retval |= BLOCK_CHANGED;
        }
 
-       ext2fs_block_alloc_stats(fs, blk, -1);
+       if (ctx->qctx)
+               quota_data_sub(ctx->qctx, pb->inode, 0, ctx->fs->blocksize);
+       ext2fs_block_alloc_stats2(fs, blk, -1);
+       ctx->free_blocks++;
        return retval;
 }
 
@@ -151,15 +186,16 @@ static int release_inode_block(ext2_filsys fs,
  * not deleted.
  */
 static int release_inode_blocks(e2fsck_t ctx, ext2_ino_t ino,
-                               struct ext2_inode *inode, char *block_buf,
+                               struct ext2_inode_large *inode, char *block_buf,
                                struct problem_context *pctx)
 {
        struct process_block_struct     pb;
        ext2_filsys                     fs = ctx->fs;
+       blk64_t                         blk;
        errcode_t                       retval;
        __u32                           count;
 
-       if (!ext2fs_inode_has_valid_blocks(inode))
+       if (!ext2fs_inode_has_valid_blocks2(fs, EXT2_INODE(inode)))
                return 0;
 
        pb.buf = block_buf + 3 * ctx->fs->blocksize;
@@ -167,11 +203,12 @@ static int release_inode_blocks(e2fsck_t ctx, ext2_ino_t ino,
        pb.abort = 0;
        pb.errcode = 0;
        pb.pctx = pctx;
+       pb.last_cluster = 0;
+       pb.inode = inode;
        if (inode->i_links_count) {
                pb.truncating = 1;
                pb.truncate_block = (e2_blkcnt_t)
-                       ((((long long)inode->i_size_high << 32) +
-                         inode->i_size + fs->blocksize - 1) /
+                       ((EXT2_I_SIZE(inode) + fs->blocksize - 1) /
                         fs->blocksize);
                pb.truncate_offset = inode->i_size % fs->blocksize;
        } else {
@@ -180,11 +217,11 @@ static int release_inode_blocks(e2fsck_t ctx, ext2_ino_t ino,
                pb.truncate_offset = 0;
        }
        pb.truncated_blocks = 0;
-       retval = ext2fs_block_iterate2(fs, ino, BLOCK_FLAG_DEPTH_TRAVERSE,
+       retval = ext2fs_block_iterate3(fs, ino, BLOCK_FLAG_DEPTH_TRAVERSE,
                                      block_buf, release_inode_block, &pb);
        if (retval) {
                com_err("release_inode_blocks", retval,
-                       _("while calling ext2fs_block_iterate for inode %d"),
+                       _("while calling ext2fs_block_iterate for inode %u"),
                        ino);
                return 1;
        }
@@ -192,33 +229,90 @@ static int release_inode_blocks(e2fsck_t ctx, ext2_ino_t ino,
                return 1;
 
        /* Refresh the inode since ext2fs_block_iterate may have changed it */
-       e2fsck_read_inode(ctx, ino, inode, "release_inode_blocks");
+       e2fsck_read_inode_full(ctx, ino, EXT2_INODE(inode), sizeof(*inode),
+                       "release_inode_blocks");
 
        if (pb.truncated_blocks)
-               ext2fs_iblk_sub_blocks(fs, inode, pb.truncated_blocks);
+               ext2fs_iblk_sub_blocks(fs, EXT2_INODE(inode),
+                               pb.truncated_blocks);
 
-       if (ext2fs_file_acl_block(inode)) {
-               retval = ext2fs_adjust_ea_refcount(fs, ext2fs_file_acl_block(inode),
-                                                  block_buf, -1, &count);
+       blk = ext2fs_file_acl_block(fs, EXT2_INODE(inode));
+       if (blk) {
+               retval = ext2fs_adjust_ea_refcount3(fs, blk, block_buf, -1,
+                               &count, ino);
                if (retval == EXT2_ET_BAD_EA_BLOCK_NUM) {
                        retval = 0;
                        count = 1;
                }
                if (retval) {
                        com_err("release_inode_blocks", retval,
-               _("while calling ext2fs_adjust_ea_refcount for inode %d"),
+               _("while calling ext2fs_adjust_ea_refcount2 for inode %u"),
                                ino);
                        return 1;
                }
-               if (count == 0)
-                       ext2fs_block_alloc_stats(fs,
-                                                ext2fs_file_acl_block(inode),
-                                                -1);
-               ext2fs_file_acl_block_set(inode, 0);
+               if (count == 0) {
+                       if (ctx->qctx)
+                               quota_data_sub(ctx->qctx, inode, 0,
+                                               ctx->fs->blocksize);
+                       ext2fs_block_alloc_stats2(fs, blk, -1);
+                       ctx->free_blocks++;
+               }
+               ext2fs_file_acl_block_set(fs, EXT2_INODE(inode), 0);
        }
        return 0;
 }
 
+/* Load all quota data in preparation for orphan clearing. */
+static errcode_t e2fsck_read_all_quotas(e2fsck_t ctx)
+{
+       ext2_ino_t qf_ino;
+       enum quota_type qtype;
+       errcode_t retval = 0;
+
+       if (!ext2fs_has_feature_quota(ctx->fs->super))
+               return retval;
+
+       retval = quota_init_context(&ctx->qctx, ctx->fs, 0);
+       if (retval)
+               return retval;
+
+       for (qtype = 0 ; qtype < MAXQUOTAS; qtype++) {
+               qf_ino = *quota_sb_inump(ctx->fs->super, qtype);
+               if (qf_ino == 0)
+                       continue;
+
+               retval = quota_update_limits(ctx->qctx, qf_ino, qtype);
+               if (retval)
+                       break;
+       }
+       if (retval)
+               quota_release_context(&ctx->qctx);
+       return retval;
+}
+
+/* Write all the quota info to disk. */
+static errcode_t e2fsck_write_all_quotas(e2fsck_t ctx)
+{
+       struct problem_context pctx;
+       enum quota_type qtype;
+
+       if (!ext2fs_has_feature_quota(ctx->fs->super))
+               return 0;
+
+       clear_problem_context(&pctx);
+       for (qtype = 0 ; qtype < MAXQUOTAS; qtype++) {
+               pctx.num = qtype;
+               pctx.errcode = quota_write_inode(ctx->qctx, 1 << qtype);
+               if (pctx.errcode) {
+                       fix_problem(ctx, PR_6_WRITE_QUOTAS, &pctx);
+                       break;
+               }
+       }
+
+       quota_release_context(&ctx->qctx);
+       return pctx.errcode;
+}
+
 /*
  * This function releases all of the orphan inodes.  It returns 1 if
  * it hit some error, and 0 on success.
@@ -227,13 +321,20 @@ static int release_orphan_inodes(e2fsck_t ctx)
 {
        ext2_filsys fs = ctx->fs;
        ext2_ino_t      ino, next_ino;
-       struct ext2_inode inode;
+       struct ext2_inode_large inode;
        struct problem_context pctx;
        char *block_buf;
 
        if ((ino = fs->super->s_last_orphan) == 0)
                return 0;
 
+       clear_problem_context(&pctx);
+       pctx.errcode = e2fsck_read_all_quotas(ctx);
+       if (pctx.errcode) {
+               fix_problem(ctx, PR_0_QUOTA_INIT_CTX, &pctx);
+               return 1;
+       }
+
        /*
         * Win or lose, we won't be using the head of the orphan inode
         * list again.
@@ -246,15 +347,18 @@ static int release_orphan_inodes(e2fsck_t ctx)
         * list, since the orphan list can't be trusted; and we're
         * going to be running a full e2fsck run anyway...
         */
-       if (fs->super->s_state & EXT2_ERROR_FS)
+       if (fs->super->s_state & EXT2_ERROR_FS) {
+               if (ctx->qctx)
+                       quota_release_context(&ctx->qctx);
                return 0;
+       }
 
        if ((ino < EXT2_FIRST_INODE(fs->super)) ||
            (ino > fs->super->s_inodes_count)) {
                clear_problem_context(&pctx);
                pctx.ino = ino;
                fix_problem(ctx, PR_0_ORPHAN_ILLEGAL_HEAD_INODE, &pctx);
-               return 1;
+               goto err_qctx;
        }
 
        block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 4,
@@ -262,10 +366,11 @@ static int release_orphan_inodes(e2fsck_t ctx)
        e2fsck_read_bitmaps(ctx);
 
        while (ino) {
-               e2fsck_read_inode(ctx, ino, &inode, "release_orphan_inodes");
+               e2fsck_read_inode_full(ctx, ino, EXT2_INODE(&inode),
+                               sizeof(inode), "release_orphan_inodes");
                clear_problem_context(&pctx);
                pctx.ino = ino;
-               pctx.inode = &inode;
+               pctx.inode = EXT2_INODE(&inode);
                pctx.str = inode.i_links_count ? _("Truncating") :
                        _("Clearing");
 
@@ -277,26 +382,37 @@ static int release_orphan_inodes(e2fsck_t ctx)
                     (next_ino > fs->super->s_inodes_count))) {
                        pctx.ino = next_ino;
                        fix_problem(ctx, PR_0_ORPHAN_ILLEGAL_INODE, &pctx);
-                       goto return_abort;
+                       goto err_buf;
                }
 
                if (release_inode_blocks(ctx, ino, &inode, block_buf, &pctx))
-                       goto return_abort;
+                       goto err_buf;
 
                if (!inode.i_links_count) {
+                       if (ctx->qctx)
+                               quota_data_inodes(ctx->qctx, &inode, ino, -1);
                        ext2fs_inode_alloc_stats2(fs, ino, -1,
                                                  LINUX_S_ISDIR(inode.i_mode));
+                       ctx->free_inodes++;
                        inode.i_dtime = ctx->now;
                } else {
                        inode.i_dtime = 0;
                }
-               e2fsck_write_inode(ctx, ino, &inode, "delete_file");
+               e2fsck_write_inode_full(ctx, ino, EXT2_INODE(&inode),
+                               sizeof(inode), "delete_file");
                ino = next_ino;
        }
        ext2fs_free_mem(&block_buf);
+       pctx.errcode = e2fsck_write_all_quotas(ctx);
+       if (pctx.errcode)
+               goto err;
        return 0;
-return_abort:
+err_buf:
        ext2fs_free_mem(&block_buf);
+err_qctx:
+       if (ctx->qctx)
+               quota_release_context(&ctx->qctx);
+err:
        return 1;
 }
 
@@ -313,18 +429,26 @@ void check_resize_inode(e2fsck_t ctx)
        struct problem_context  pctx;
        int             i, gdt_off, ind_off;
        dgrp_t          j;
-       blk_t           blk, pblk, expect;
+       blk_t           blk, pblk;
+       blk_t           expect; /* for resize inode, which is 32-bit only */
        __u32           *dind_buf = 0, *ind_buf;
        errcode_t       retval;
 
        clear_problem_context(&pctx);
 
+       if (ext2fs_has_feature_resize_inode(fs->super) &&
+           ext2fs_has_feature_meta_bg(fs->super) &&
+           fix_problem(ctx, PR_0_DISABLE_RESIZE_INODE, &pctx)) {
+               ext2fs_clear_feature_resize_inode(fs->super);
+               fs->super->s_reserved_gdt_blocks = 0;
+               ext2fs_mark_super_dirty(fs);
+       }
+
        /*
         * If the resize inode feature isn't set, then
         * s_reserved_gdt_blocks must be zero.
         */
-       if (!(fs->super->s_feature_compat &
-             EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
+       if (!ext2fs_has_feature_resize_inode(fs->super)) {
                if (fs->super->s_reserved_gdt_blocks) {
                        pctx.num = fs->super->s_reserved_gdt_blocks;
                        if (fix_problem(ctx, PR_0_NONZERO_RESERVED_GDT_BLOCKS,
@@ -339,8 +463,7 @@ void check_resize_inode(e2fsck_t ctx)
        pctx.ino = EXT2_RESIZE_INO;
        retval = ext2fs_read_inode(fs, EXT2_RESIZE_INO, &inode);
        if (retval) {
-               if (fs->super->s_feature_compat &
-                   EXT2_FEATURE_COMPAT_RESIZE_INODE)
+               if (ext2fs_has_feature_resize_inode(fs->super))
                        ctx->flags |= E2F_FLAG_RESIZE_INODE;
                return;
        }
@@ -349,8 +472,7 @@ void check_resize_inode(e2fsck_t ctx)
         * If the resize inode feature isn't set, check to make sure
         * the resize inode is cleared; then we're done.
         */
-       if (!(fs->super->s_feature_compat &
-             EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
+       if (!ext2fs_has_feature_resize_inode(fs->super)) {
                for (i=0; i < EXT2_N_BLOCKS; i++) {
                        if (inode.i_block[i])
                                break;
@@ -376,7 +498,7 @@ void check_resize_inode(e2fsck_t ctx)
        if ((i < EXT2_N_BLOCKS) || !blk || !inode.i_links_count ||
            !(inode.i_mode & LINUX_S_IFREG) ||
            (blk < fs->super->s_first_data_block ||
-            blk >= fs->super->s_blocks_count)) {
+            blk >= ext2fs_blocks_count(fs->super))) {
        resize_inode_invalid:
                if (fix_problem(ctx, PR_0_RESIZE_INODE_INVALID, &pctx)) {
                        memset(&inode, 0, sizeof(inode));
@@ -400,6 +522,8 @@ void check_resize_inode(e2fsck_t ctx)
 
        gdt_off = fs->desc_blocks;
        pblk = fs->super->s_first_data_block + 1 + fs->desc_blocks;
+       if (fs->blocksize == 1024 && fs->super->s_first_data_block == 0)
+               pblk++; /* Deal with 1024 blocksize bigalloc fs */
        for (i = 0; i < fs->super->s_reserved_gdt_blocks / 4;
             i++, gdt_off++, pblk++) {
                gdt_off %= fs->blocksize/4;
@@ -412,7 +536,7 @@ void check_resize_inode(e2fsck_t ctx)
                for (j = 1; j < fs->group_desc_count; j++) {
                        if (!ext2fs_bg_has_super(fs, j))
                                continue;
-                       expect = pblk + (j * fs->super->s_blocks_per_group);
+                       expect = pblk + EXT2_GROUPS_TO_BLOCKS(fs->super, j);
                        if (ind_buf[ind_off] != expect)
                                goto resize_inode_invalid;
                        ind_off++;
@@ -435,7 +559,7 @@ static void e2fsck_fix_dirhash_hint(e2fsck_t ctx)
        char    c;
 
        if ((ctx->options & E2F_OPT_READONLY) ||
-           !(sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) ||
+           !ext2fs_has_feature_dir_index(sb) ||
            (sb->s_flags & (EXT2_FLAGS_SIGNED_HASH|EXT2_FLAGS_UNSIGNED_HASH)))
                return;
 
@@ -456,28 +580,32 @@ static void e2fsck_fix_dirhash_hint(e2fsck_t ctx)
 void check_super_block(e2fsck_t ctx)
 {
        ext2_filsys fs = ctx->fs;
-       blk_t   first_block, last_block;
+       blk64_t first_block, last_block;
        struct ext2_super_block *sb = fs->super;
-       struct ext2_group_desc *gd;
+       unsigned int    ipg_max;
        problem_t       problem;
-       blk_t   blocks_per_group = fs->super->s_blocks_per_group;
-       blk_t   bpg_max;
+       blk64_t blocks_per_group = fs->super->s_blocks_per_group;
+       __u32   bpg_max, cpg_max;
+       __u64   blks_max;
        int     inodes_per_block;
-       int     ipg_max;
        int     inode_size;
-       int     buggy_init_scripts;
+       int     accept_time_fudge;
+       int     broken_system_clock;
        dgrp_t  i;
-       blk_t   should_be;
+       blk64_t should_be;
        struct problem_context  pctx;
-       blk_t   free_blocks = 0;
-       ino_t   free_inodes = 0;
+       blk64_t free_blocks = 0;
+       ext2_ino_t free_inodes = 0;
        int     csum_flag, clear_test_fs_flag;
 
        inodes_per_block = EXT2_INODES_PER_BLOCK(fs->super);
        ipg_max = inodes_per_block * (blocks_per_group - 4);
        if (ipg_max > EXT2_MAX_INODES_PER_GROUP(sb))
                ipg_max = EXT2_MAX_INODES_PER_GROUP(sb);
-       bpg_max = 8 * EXT2_BLOCK_SIZE(sb);
+       cpg_max = 8 * EXT2_BLOCK_SIZE(sb);
+       if (cpg_max > EXT2_MAX_CLUSTERS_PER_GROUP(sb))
+               cpg_max = EXT2_MAX_CLUSTERS_PER_GROUP(sb);
+       bpg_max = 8 * EXT2_BLOCK_SIZE(sb) * EXT2FS_CLUSTER_RATIO(fs);
        if (bpg_max > EXT2_MAX_BLOCKS_PER_GROUP(sb))
                bpg_max = EXT2_MAX_BLOCKS_PER_GROUP(sb);
 
@@ -488,53 +616,104 @@ void check_super_block(e2fsck_t ctx)
        ctx->invalid_inode_table_flag = (int *) e2fsck_allocate_memory(ctx,
                sizeof(int) * fs->group_desc_count, "invalid_inode_table");
 
+       blks_max = (1ULL << 32) * EXT2_MAX_BLOCKS_PER_GROUP(fs->super);
+       if (ext2fs_has_feature_64bit(fs->super)) {
+               if (blks_max > ((1ULL << 48) - 1))
+                       blks_max = (1ULL << 48) - 1;
+       } else {
+               if (blks_max > ((1ULL << 32) - 1))
+                       blks_max = (1ULL << 32) - 1;
+       }
+
        clear_problem_context(&pctx);
 
        /*
         * Verify the super block constants...
         */
-       check_super_value(ctx, "inodes_count", sb->s_inodes_count,
-                         MIN_CHECK, 1, 0);
-       check_super_value(ctx, "blocks_count", sb->s_blocks_count,
-                         MIN_CHECK, 1, 0);
-       check_super_value(ctx, "first_data_block", sb->s_first_data_block,
-                         MAX_CHECK, 0, sb->s_blocks_count);
-       check_super_value(ctx, "log_block_size", sb->s_log_block_size,
-                         MIN_CHECK | MAX_CHECK, 0,
-                         EXT2_MAX_BLOCK_LOG_SIZE - EXT2_MIN_BLOCK_LOG_SIZE);
-       check_super_value(ctx, "log_frag_size", sb->s_log_frag_size,
-                         MIN_CHECK | MAX_CHECK, 0, sb->s_log_block_size);
-       check_super_value(ctx, "frags_per_group", sb->s_frags_per_group,
-                         MIN_CHECK | MAX_CHECK, sb->s_blocks_per_group,
-                         bpg_max);
-       check_super_value(ctx, "blocks_per_group", sb->s_blocks_per_group,
-                         MIN_CHECK | MAX_CHECK, 8, bpg_max);
-       check_super_value(ctx, "inodes_per_group", sb->s_inodes_per_group,
-                         MIN_CHECK | MAX_CHECK, inodes_per_block, ipg_max);
-       check_super_value(ctx, "r_blocks_count", sb->s_r_blocks_count,
-                         MAX_CHECK, 0, sb->s_blocks_count / 2);
-       check_super_value(ctx, "reserved_gdt_blocks",
-                         sb->s_reserved_gdt_blocks, MAX_CHECK, 0,
-                         fs->blocksize/4);
-       if (sb->s_rev_level > EXT2_GOOD_OLD_REV)
-               check_super_value(ctx, "first_ino", sb->s_first_ino,
-                                 MIN_CHECK | MAX_CHECK,
-                                 EXT2_GOOD_OLD_FIRST_INO, sb->s_inodes_count);
+       if (!check_super_value(ctx, "inodes_count", sb->s_inodes_count,
+                              MIN_CHECK, 1, 0))
+               return;
+       if (!check_super_value64(ctx, "blocks_count", ext2fs_blocks_count(sb),
+                                MIN_CHECK | MAX_CHECK, 1, blks_max))
+               return;
+       if (!check_super_value(ctx, "first_data_block", sb->s_first_data_block,
+                              MAX_CHECK, 0, ext2fs_blocks_count(sb)))
+               return;
+       if (!check_super_value(ctx, "log_block_size", sb->s_log_block_size,
+                              MIN_CHECK | MAX_CHECK, 0,
+                              EXT2_MAX_BLOCK_LOG_SIZE - EXT2_MIN_BLOCK_LOG_SIZE))
+               return;
+       if (!check_super_value(ctx, "log_cluster_size",
+                              sb->s_log_cluster_size,
+                              MIN_CHECK | MAX_CHECK, sb->s_log_block_size,
+                              (EXT2_MAX_CLUSTER_LOG_SIZE -
+                               EXT2_MIN_CLUSTER_LOG_SIZE)))
+               return;
+       if (!check_super_value(ctx, "clusters_per_group",
+                              sb->s_clusters_per_group,
+                              MIN_CHECK | MAX_CHECK, 8, cpg_max))
+               return;
+       if (!check_super_value(ctx, "blocks_per_group", sb->s_blocks_per_group,
+                              MIN_CHECK | MAX_CHECK, 8, bpg_max))
+               return;
+       if (!check_super_value(ctx, "inodes_per_group", sb->s_inodes_per_group,
+                              MIN_CHECK | MAX_CHECK, inodes_per_block, ipg_max))
+               return;
+       if (!check_super_value(ctx, "r_blocks_count", ext2fs_r_blocks_count(sb),
+                              MAX_CHECK, 0, ext2fs_blocks_count(sb) / 2))
+               return;
+       if (!check_super_value(ctx, "reserved_gdt_blocks",
+                              sb->s_reserved_gdt_blocks, MAX_CHECK, 0,
+                              fs->blocksize / sizeof(__u32)))
+               return;
+       if (!check_super_value(ctx, "desc_size",
+                              sb->s_desc_size, MAX_CHECK | LOG2_CHECK, 0,
+                              EXT2_MAX_DESC_SIZE))
+               return;
+
+       should_be = (__u64)sb->s_inodes_per_group * fs->group_desc_count;
+       if (should_be > ~0U) {
+               pctx.num = should_be;
+               fix_problem(ctx, PR_0_INODE_COUNT_BIG, &pctx);
+               ctx->flags |= E2F_FLAG_ABORT;
+               return;
+       }
+       if (sb->s_inodes_count != should_be) {
+               pctx.ino = sb->s_inodes_count;
+               pctx.ino2 = should_be;
+               if (fix_problem(ctx, PR_0_INODE_COUNT_WRONG, &pctx)) {
+                       sb->s_inodes_count = should_be;
+                       ext2fs_mark_super_dirty(fs);
+               } else {
+                       pctx.num = sb->s_inodes_count;
+                       pctx.str = "inodes_count";
+                       fix_problem(ctx, PR_0_MISC_CORRUPT_SUPER, &pctx);
+                       ctx->flags |= E2F_FLAG_ABORT;
+                       return;
+               }
+       }
+       if (sb->s_rev_level > EXT2_GOOD_OLD_REV &&
+           !check_super_value(ctx, "first_ino", sb->s_first_ino,
+                              MIN_CHECK | MAX_CHECK,
+                              EXT2_GOOD_OLD_FIRST_INO, sb->s_inodes_count))
+               return;
        inode_size = EXT2_INODE_SIZE(sb);
-       check_super_value(ctx, "inode_size",
-                         inode_size, MIN_CHECK | MAX_CHECK,
-                         EXT2_GOOD_OLD_INODE_SIZE, fs->blocksize);
-       if (inode_size & (inode_size - 1)) {
-               pctx.num = inode_size;
-               pctx.str = "inode_size";
+       if (!check_super_value(ctx, "inode_size",
+                              inode_size, MIN_CHECK | MAX_CHECK | LOG2_CHECK,
+                              EXT2_GOOD_OLD_INODE_SIZE, fs->blocksize))
+               return;
+       if (sb->s_blocks_per_group != (sb->s_clusters_per_group *
+                                      EXT2FS_CLUSTER_RATIO(fs))) {
+               pctx.num = sb->s_clusters_per_group * EXT2FS_CLUSTER_RATIO(fs);
+               pctx.str = "block_size";
                fix_problem(ctx, PR_0_MISC_CORRUPT_SUPER, &pctx);
-               ctx->flags |= E2F_FLAG_ABORT; /* never get here! */
+               ctx->flags |= E2F_FLAG_ABORT;
                return;
        }
 
        if ((ctx->flags & E2F_FLAG_GOT_DEVSIZE) &&
-           (ctx->num_blocks < sb->s_blocks_count)) {
-               pctx.blk = sb->s_blocks_count;
+           (ctx->num_blocks < ext2fs_blocks_count(sb))) {
+               pctx.blk = ext2fs_blocks_count(sb);
                pctx.blk2 = ctx->num_blocks;
                if (fix_problem(ctx, PR_0_FS_SIZE_WRONG, &pctx)) {
                        ctx->flags |= E2F_FLAG_ABORT;
@@ -542,25 +721,8 @@ void check_super_block(e2fsck_t ctx)
                }
        }
 
-       if (sb->s_log_block_size != (__u32) sb->s_log_frag_size) {
-               pctx.blk = EXT2_BLOCK_SIZE(sb);
-               pctx.blk2 = EXT2_FRAG_SIZE(sb);
-               fix_problem(ctx, PR_0_NO_FRAGMENTS, &pctx);
-               ctx->flags |= E2F_FLAG_ABORT;
-               return;
-       }
-
-       should_be = sb->s_frags_per_group >>
-               (sb->s_log_block_size - sb->s_log_frag_size);
-       if (sb->s_blocks_per_group != should_be) {
-               pctx.blk = sb->s_blocks_per_group;
-               pctx.blk2 = should_be;
-               fix_problem(ctx, PR_0_BLOCKS_PER_GROUP, &pctx);
-               ctx->flags |= E2F_FLAG_ABORT;
-               return;
-       }
-
-       should_be = (sb->s_log_block_size == 0) ? 1 : 0;
+       should_be = (sb->s_log_block_size == 0 &&
+                    EXT2FS_CLUSTER_RATIO(fs) == 1) ? 1 : 0;
        if (sb->s_first_data_block != should_be) {
                pctx.blk = sb->s_first_data_block;
                pctx.blk2 = should_be;
@@ -569,12 +731,75 @@ void check_super_block(e2fsck_t ctx)
                return;
        }
 
-       should_be = sb->s_inodes_per_group * fs->group_desc_count;
-       if (sb->s_inodes_count != should_be) {
-               pctx.ino = sb->s_inodes_count;
-               pctx.ino2 = should_be;
-               if (fix_problem(ctx, PR_0_INODE_COUNT_WRONG, &pctx)) {
-                       sb->s_inodes_count = should_be;
+       if (EXT2_INODE_SIZE(sb) > EXT2_GOOD_OLD_INODE_SIZE) {
+               unsigned min =
+                       sizeof(((struct ext2_inode_large *) 0)->i_extra_isize) +
+                       sizeof(((struct ext2_inode_large *) 0)->i_checksum_hi);
+               unsigned max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
+               pctx.num = sb->s_min_extra_isize;
+               if (sb->s_min_extra_isize &&
+                   (sb->s_min_extra_isize < min ||
+                    sb->s_min_extra_isize > max ||
+                    sb->s_min_extra_isize & 3) &&
+                   fix_problem(ctx, PR_0_BAD_MIN_EXTRA_ISIZE, &pctx)) {
+                       sb->s_min_extra_isize =
+                               (sizeof(struct ext2_inode_large) -
+                                EXT2_GOOD_OLD_INODE_SIZE);
+                       ext2fs_mark_super_dirty(fs);
+               }
+               pctx.num = sb->s_want_extra_isize;
+               if (sb->s_want_extra_isize &&
+                   (sb->s_want_extra_isize < min ||
+                    sb->s_want_extra_isize > max ||
+                    sb->s_want_extra_isize & 3) &&
+                   fix_problem(ctx, PR_0_BAD_WANT_EXTRA_ISIZE, &pctx)) {
+                       sb->s_want_extra_isize =
+                               (sizeof(struct ext2_inode_large) -
+                                EXT2_GOOD_OLD_INODE_SIZE);
+                       ext2fs_mark_super_dirty(fs);
+               }
+       }
+                   
+       /* Are metadata_csum and uninit_bg both set? */
+       if (ext2fs_has_feature_metadata_csum(fs->super) &&
+           ext2fs_has_feature_gdt_csum(fs->super) &&
+           fix_problem(ctx, PR_0_META_AND_GDT_CSUM_SET, &pctx)) {
+               ext2fs_clear_feature_gdt_csum(fs->super);
+               ext2fs_mark_super_dirty(fs);
+               for (i = 0; i < fs->group_desc_count; i++)
+                       ext2fs_group_desc_csum_set(fs, i);
+       }
+
+       /* We can't have ^metadata_csum,metadata_csum_seed */
+       if (!ext2fs_has_feature_metadata_csum(fs->super) &&
+           ext2fs_has_feature_csum_seed(fs->super) &&
+           fix_problem(ctx, PR_0_CSUM_SEED_WITHOUT_META_CSUM, &pctx)) {
+               ext2fs_clear_feature_csum_seed(fs->super);
+               fs->super->s_checksum_seed = 0;
+               ext2fs_mark_super_dirty(fs);
+       }
+
+       /* Is 64bit set and extents unset? */
+       if (ext2fs_has_feature_64bit(fs->super) &&
+           !ext2fs_has_feature_extents(fs->super) &&
+           fix_problem(ctx, PR_0_64BIT_WITHOUT_EXTENTS, &pctx)) {
+               ext2fs_set_feature_extents(fs->super);
+               ext2fs_mark_super_dirty(fs);
+       }
+
+       /* Did user ask us to convert files to extents? */
+       if (ctx->options & E2F_OPT_CONVERT_BMAP) {
+               ext2fs_set_feature_extents(fs->super);
+               ext2fs_mark_super_dirty(fs);
+       }
+
+       if (ext2fs_has_feature_meta_bg(fs->super) &&
+           (fs->super->s_first_meta_bg > fs->desc_blocks)) {
+               pctx.group = fs->desc_blocks;
+               pctx.num = fs->super->s_first_meta_bg;
+               if (fix_problem(ctx, PR_0_FIRST_META_BG_TOO_BIG, &pctx)) {
+                       ext2fs_clear_feature_meta_bg(fs->super);
+                       fs->super->s_first_meta_bg = 0;
                        ext2fs_mark_super_dirty(fs);
                }
        }
@@ -583,106 +808,97 @@ void check_super_block(e2fsck_t ctx)
         * Verify the group descriptors....
         */
        first_block = sb->s_first_data_block;
-       last_block = sb->s_blocks_count-1;
+       last_block = ext2fs_blocks_count(sb)-1;
 
-       csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
-                                              EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
-       for (i = 0, gd=fs->group_desc; i < fs->group_desc_count; i++, gd++) {
+       csum_flag = ext2fs_has_group_desc_csum(fs);
+       for (i = 0; i < fs->group_desc_count; i++) {
                pctx.group = i;
 
-               if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
-                                              EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
-                       first_block = ext2fs_group_first_block(fs, i);
-                       last_block = ext2fs_group_last_block(fs, i);
+               if (!ext2fs_has_feature_flex_bg(fs->super)) {
+                       first_block = ext2fs_group_first_block2(fs, i);
+                       last_block = ext2fs_group_last_block2(fs, i);
                }
 
-               if ((gd->bg_block_bitmap < first_block) ||
-                   (gd->bg_block_bitmap > last_block)) {
-                       pctx.blk = gd->bg_block_bitmap;
+               if ((ext2fs_block_bitmap_loc(fs, i) < first_block) ||
+                   (ext2fs_block_bitmap_loc(fs, i) > last_block)) {
+                       pctx.blk = ext2fs_block_bitmap_loc(fs, i);
                        if (fix_problem(ctx, PR_0_BB_NOT_GROUP, &pctx))
-                               gd->bg_block_bitmap = 0;
+                               ext2fs_block_bitmap_loc_set(fs, i, 0);
                }
-               if (gd->bg_block_bitmap == 0) {
+               if (ext2fs_block_bitmap_loc(fs, i) == 0) {
                        ctx->invalid_block_bitmap_flag[i]++;
                        ctx->invalid_bitmaps++;
                }
-               if ((gd->bg_inode_bitmap < first_block) ||
-                   (gd->bg_inode_bitmap > last_block)) {
-                       pctx.blk = gd->bg_inode_bitmap;
+               if ((ext2fs_inode_bitmap_loc(fs, i) < first_block) ||
+                   (ext2fs_inode_bitmap_loc(fs, i) > last_block)) {
+                       pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
                        if (fix_problem(ctx, PR_0_IB_NOT_GROUP, &pctx))
-                               gd->bg_inode_bitmap = 0;
+                               ext2fs_inode_bitmap_loc_set(fs, i, 0);
                }
-               if (gd->bg_inode_bitmap == 0) {
+               if (ext2fs_inode_bitmap_loc(fs, i) == 0) {
                        ctx->invalid_inode_bitmap_flag[i]++;
                        ctx->invalid_bitmaps++;
                }
-               if ((gd->bg_inode_table < first_block) ||
-                   ((gd->bg_inode_table +
+               if ((ext2fs_inode_table_loc(fs, i) < first_block) ||
+                   ((ext2fs_inode_table_loc(fs, i) +
                      fs->inode_blocks_per_group - 1) > last_block)) {
-                       pctx.blk = gd->bg_inode_table;
+                       pctx.blk = ext2fs_inode_table_loc(fs, i);
                        if (fix_problem(ctx, PR_0_ITABLE_NOT_GROUP, &pctx))
-                               gd->bg_inode_table = 0;
+                               ext2fs_inode_table_loc_set(fs, i, 0);
                }
-               if (gd->bg_inode_table == 0) {
+               if (ext2fs_inode_table_loc(fs, i) == 0) {
                        ctx->invalid_inode_table_flag[i]++;
                        ctx->invalid_bitmaps++;
                }
-               free_blocks += gd->bg_free_blocks_count;
-               free_inodes += gd->bg_free_inodes_count;
+               free_blocks += ext2fs_bg_free_blocks_count(fs, i);
+               free_inodes += ext2fs_bg_free_inodes_count(fs, i);
 
-               if ((gd->bg_free_blocks_count > sb->s_blocks_per_group) ||
-                   (gd->bg_free_inodes_count > sb->s_inodes_per_group) ||
-                   (gd->bg_used_dirs_count > sb->s_inodes_per_group))
+               if ((ext2fs_bg_free_blocks_count(fs, i) > sb->s_blocks_per_group) ||
+                   (ext2fs_bg_free_inodes_count(fs, i) > sb->s_inodes_per_group) ||
+                   (ext2fs_bg_used_dirs_count(fs, i) > sb->s_inodes_per_group))
                        ext2fs_unmark_valid(fs);
 
                should_be = 0;
                if (!ext2fs_group_desc_csum_verify(fs, i)) {
+                       pctx.csum1 = ext2fs_bg_checksum(fs, i);
+                       pctx.csum2 = ext2fs_group_desc_csum(fs, i);
                        if (fix_problem(ctx, PR_0_GDT_CSUM, &pctx)) {
-                               ext2fs_bg_flag_clear (fs, i, EXT2_BG_BLOCK_UNINIT);
-                               ext2fs_bg_flag_clear (fs, i, EXT2_BG_INODE_UNINIT);
-                               gd->bg_itable_unused = 0;
+                               ext2fs_bg_flags_clear(fs, i, EXT2_BG_BLOCK_UNINIT);
+                               ext2fs_bg_flags_clear(fs, i, EXT2_BG_INODE_UNINIT);
+                               ext2fs_bg_itable_unused_set(fs, i, 0);
                                should_be = 1;
                        }
                        ext2fs_unmark_valid(fs);
                }
 
                if (!csum_flag &&
-                   (ext2fs_bg_flag_test(fs, i, EXT2_BG_BLOCK_UNINIT) ||
-                    ext2fs_bg_flag_test(fs, i, EXT2_BG_INODE_UNINIT) ||
-                    gd->bg_itable_unused != 0)){
+                   (ext2fs_bg_flags_test(fs, i, EXT2_BG_BLOCK_UNINIT) ||
+                    ext2fs_bg_flags_test(fs, i, EXT2_BG_INODE_UNINIT) ||
+                    ext2fs_bg_itable_unused(fs, i) != 0)) {
                        if (fix_problem(ctx, PR_0_GDT_UNINIT, &pctx)) {
-                               ext2fs_bg_flag_clear (fs, i, EXT2_BG_BLOCK_UNINIT);
-                               ext2fs_bg_flag_clear (fs, i, EXT2_BG_INODE_UNINIT);
-                               gd->bg_itable_unused = 0;
+                               ext2fs_bg_flags_clear(fs, i, EXT2_BG_BLOCK_UNINIT);
+                               ext2fs_bg_flags_clear(fs, i, EXT2_BG_INODE_UNINIT);
+                               ext2fs_bg_itable_unused_set(fs, i, 0);
                                should_be = 1;
                        }
                        ext2fs_unmark_valid(fs);
                }
 
                if (i == fs->group_desc_count - 1 &&
-                   ext2fs_bg_flag_test(fs, i, EXT2_BG_BLOCK_UNINIT)) {
+                   ext2fs_bg_flags_test(fs, i, EXT2_BG_BLOCK_UNINIT)) {
                        if (fix_problem(ctx, PR_0_BB_UNINIT_LAST, &pctx)) {
-                               ext2fs_bg_flag_clear (fs, i, EXT2_BG_BLOCK_UNINIT);
-                               should_be = 1;
-                       }
-                       ext2fs_unmark_valid(fs);
-               }
-
-               if (ext2fs_bg_flag_test(fs, i, EXT2_BG_BLOCK_UNINIT) &&
-                   !ext2fs_bg_flag_test(fs, i, EXT2_BG_INODE_UNINIT)) {
-                       if (fix_problem(ctx, PR_0_BB_UNINIT_IB_INIT, &pctx)) {
-                               ext2fs_bg_flag_clear (fs, i, EXT2_BG_BLOCK_UNINIT);
+                               ext2fs_bg_flags_clear(fs, i, EXT2_BG_BLOCK_UNINIT);
                                should_be = 1;
                        }
                        ext2fs_unmark_valid(fs);
                }
 
                if (csum_flag &&
-                   (gd->bg_itable_unused > gd->bg_free_inodes_count ||
-                    gd->bg_itable_unused > sb->s_inodes_per_group)) {
-                       pctx.blk = gd->bg_itable_unused;
+                   (ext2fs_bg_itable_unused(fs, i) > ext2fs_bg_free_inodes_count(fs, i) ||
+                    ext2fs_bg_itable_unused(fs, i) > sb->s_inodes_per_group)) {
+                       pctx.blk = ext2fs_bg_itable_unused(fs, i);
                        if (fix_problem(ctx, PR_0_GDT_ITABLE_UNUSED, &pctx)) {
-                               gd->bg_itable_unused = 0;
+                               ext2fs_bg_itable_unused_set(fs, i, 0);
                                should_be = 1;
                        }
                        ext2fs_unmark_valid(fs);
@@ -695,25 +911,10 @@ void check_super_block(e2fsck_t ctx)
                        return;
        }
 
-       /*
-        * Update the global counts from the block group counts.  This
-        * is needed for an experimental patch which eliminates
-        * locking the entire filesystem when allocating blocks or
-        * inodes; if the filesystem is not unmounted cleanly, the
-        * global counts may not be accurate.
-        */
-       if ((free_blocks != sb->s_free_blocks_count) ||
-           (free_inodes != sb->s_free_inodes_count)) {
-               if (ctx->options & E2F_OPT_READONLY)
-                       ext2fs_unmark_valid(fs);
-               else {
-                       sb->s_free_blocks_count = free_blocks;
-                       sb->s_free_inodes_count = free_inodes;
-                       ext2fs_mark_super_dirty(fs);
-               }
-       }
+       ctx->free_blocks = EXT2FS_C2B(fs, free_blocks);
+       ctx->free_inodes = free_inodes;
 
-       if ((sb->s_free_blocks_count > sb->s_blocks_count) ||
+       if ((ext2fs_free_blocks_count(sb) > ext2fs_blocks_count(sb)) ||
            (sb->s_free_inodes_count > sb->s_inodes_count))
                ext2fs_unmark_valid(fs);
 
@@ -732,11 +933,16 @@ void check_super_block(e2fsck_t ctx)
 #ifndef EXT2_SKIP_UUID
        /*
         * If the UUID field isn't assigned, assign it.
+        * Skip if checksums are enabled and the filesystem is mounted,
+        * if the id changes under the kernel remounting rw may fail.
         */
-       if (!(ctx->options & E2F_OPT_READONLY) && uuid_is_null(sb->s_uuid)) {
+       if (!(ctx->options & E2F_OPT_READONLY) && uuid_is_null(sb->s_uuid) &&
+           !ext2fs_has_feature_metadata_csum(ctx->fs->super) &&
+           (!csum_flag || !(ctx->mount_flags & EXT2_MF_MOUNTED))) {
                if (fix_problem(ctx, PR_0_ADD_UUID, &pctx)) {
                        uuid_generate(sb->s_uuid);
-                       ext2fs_mark_super_dirty(fs);
+                       ext2fs_init_csum_seed(fs);
+                       fs->flags |= EXT2_FLAG_DIRTY;
                        fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
                }
        }
@@ -754,7 +960,7 @@ void check_super_block(e2fsck_t ctx)
            (fs_proc_check("ext4") || check_for_modules("ext4"))) {
                if (fix_problem(ctx, PR_0_CLEAR_TESTFS_FLAG, &pctx)) {
                        fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
-                       ext2fs_mark_super_dirty(fs);
+                       fs->flags |= EXT2_FLAG_DIRTY;
                        fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
                }
        }
@@ -765,11 +971,9 @@ void check_super_block(e2fsck_t ctx)
         */
        if (!(ctx->options & E2F_OPT_READONLY) &&
            fs->super->s_creator_os == EXT2_OS_HURD &&
-           (fs->super->s_feature_incompat &
-            EXT2_FEATURE_INCOMPAT_FILETYPE)) {
+           ext2fs_has_feature_filetype(fs->super)) {
                if (fix_problem(ctx, PR_0_HURD_CLEAR_FILETYPE, &pctx)) {
-                       fs->super->s_feature_incompat &=
-                               ~EXT2_FEATURE_INCOMPAT_FILETYPE;
+                       ext2fs_clear_feature_filetype(fs->super);
                        ext2fs_mark_super_dirty(fs);
                        fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
                }
@@ -801,51 +1005,66 @@ void check_super_block(e2fsck_t ctx)
        }
 
        /*
-        * Some buggy distributions (such as Ubuntu) have init scripts
-        * and/or installers which fail to correctly set the system
-        * clock before running e2fsck and/or formatting the
-        * filesystem initially.  Normally this happens because the
-        * hardware clock is ticking localtime, instead of the more
-        * proper and less error-prone UTC time.  So while the kernel
-        * is booting, the system time (which in Linux systems always
-        * ticks in UTC time) is set from the hardware clock, but
-        * since the hardware clock is ticking localtime, the system
-        * time is incorrect.  Unfortunately, some buggy distributions
-        * do not correct this before running e2fsck.  If this option
-        * is set to a boolean value of true, we attempt to work
-        * around this situation by allowing the superblock last write
-        * time, last mount time, and last check time to be in the
-        * future by up to 24 hours.
+        * Unfortunately, due to Windows' unfortunate design decision
+        * to configure the hardware clock to tick localtime, instead
+        * of the more proper and less error-prone UTC time, many
+        * users end up in the situation where the system clock is
+        * incorrectly set at the time when e2fsck is run.
+        *
+        * Historically this was usually due to some distributions
+        * having buggy init scripts and/or installers that didn't
+        * correctly detect this case and take appropriate
+        * countermeasures.  However, it's still possible, despite the
+        * best efforts of init script and installer authors to not be
+        * able to detect this misconfiguration, usually due to a
+        * buggy or misconfigured virtualization manager or the
+        * installer not having access to a network time server during
+        * the installation process.  So by default, we allow the
+        * superblock times to be fudged by up to 24 hours.  This can
+        * be disabled by setting options.accept_time_fudge to the
+        * boolean value of false in e2fsck.conf.  We also support
+        * options.buggy_init_scripts for backwards compatibility.
         */
+       profile_get_boolean(ctx->profile, "options", "accept_time_fudge",
+                           0, 1, &accept_time_fudge);
        profile_get_boolean(ctx->profile, "options", "buggy_init_scripts",
-                           0, 0, &buggy_init_scripts);
-       ctx->time_fudge = buggy_init_scripts ? 86400 : 0;
+                           0, accept_time_fudge, &accept_time_fudge);
+       ctx->time_fudge = accept_time_fudge ? 86400 : 0;
+
+       profile_get_boolean(ctx->profile, "options", "broken_system_clock",
+                           0, 0, &broken_system_clock);
 
        /*
         * Check to see if the superblock last mount time or last
         * write time is in the future.
         */
-       if (fs->super->s_mtime > (__u32) ctx->now) {
+       if (!broken_system_clock && fs->super->s_checkinterval &&
+           !(ctx->flags & E2F_FLAG_TIME_INSANE) &&
+           fs->super->s_mtime > (__u32) ctx->now) {
                pctx.num = fs->super->s_mtime;
                problem = PR_0_FUTURE_SB_LAST_MOUNT;
                if (fs->super->s_mtime <= (__u32) ctx->now + ctx->time_fudge)
                        problem = PR_0_FUTURE_SB_LAST_MOUNT_FUDGED;
                if (fix_problem(ctx, problem, &pctx)) {
                        fs->super->s_mtime = ctx->now;
-                       ext2fs_mark_super_dirty(fs);
+                       fs->flags |= EXT2_FLAG_DIRTY;
                }
        }
-       if (fs->super->s_wtime > (__u32) ctx->now) {
+       if (!broken_system_clock && fs->super->s_checkinterval &&
+           !(ctx->flags & E2F_FLAG_TIME_INSANE) &&
+           fs->super->s_wtime > (__u32) ctx->now) {
                pctx.num = fs->super->s_wtime;
                problem = PR_0_FUTURE_SB_LAST_WRITE;
                if (fs->super->s_wtime <= (__u32) ctx->now + ctx->time_fudge)
-                       problem = PR_0_FUTURE_SB_LAST_MOUNT_FUDGED;
+                       problem = PR_0_FUTURE_SB_LAST_WRITE_FUDGED;
                if (fix_problem(ctx, problem, &pctx)) {
                        fs->super->s_wtime = ctx->now;
-                       ext2fs_mark_super_dirty(fs);
+                       fs->flags |= EXT2_FLAG_DIRTY;
                }
        }
 
+       e2fsck_validate_quota_inodes(ctx);
+
        /*
         * Move the ext3 journal file, if necessary.
         */
@@ -861,6 +1080,11 @@ void check_super_block(e2fsck_t ctx)
         */
        e2fsck_fix_dirhash_hint(ctx);
 
+       /*
+        * Hide quota inodes if necessary.
+        */
+       e2fsck_hide_quota(ctx);
+
        return;
 }
 
@@ -893,7 +1117,7 @@ int check_backup_super_block(e2fsck_t ctx)
        ext2_filsys     fs = ctx->fs;
        errcode_t       retval;
        dgrp_t          g;
-       blk_t           sb;
+       blk64_t         sb;
        int             ret = 0;
        char            buf[SUPERBLOCK_SIZE];
        struct ext2_super_block *backup_sb;
@@ -916,8 +1140,7 @@ int check_backup_super_block(e2fsck_t ctx)
                if (!ext2fs_bg_has_super(fs, g))
                        continue;
 
-               sb = fs->super->s_first_data_block +
-                       (g * fs->super->s_blocks_per_group);
+               sb = ext2fs_group_first_block2(fs, g);
 
                retval = io_channel_read_blk(fs->io, sb, -SUPERBLOCK_SIZE,
                                             buf);
@@ -947,6 +1170,7 @@ int check_backup_super_block(e2fsck_t ctx)
                    SUPER_INCOMPAT_DIFFERENT(s_feature_incompat) ||
                    SUPER_RO_COMPAT_DIFFERENT(s_feature_ro_compat) ||
                    SUPER_DIFFERENT(s_blocks_count) ||
+                   SUPER_DIFFERENT(s_blocks_count_hi) ||
                    SUPER_DIFFERENT(s_inodes_count) ||
                    memcmp(fs->super->s_uuid, backup_sb->s_uuid,
                           sizeof(fs->super->s_uuid)))