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get_device_by_label.c (init_lvm): Fix bug which caused
[tools/e2fsprogs.git] / misc / mke2fs.c
index 0338a7f..0f5f1e0 100644 (file)
@@ -20,7 +20,7 @@
 #include <fcntl.h>
 #include <ctype.h>
 #include <time.h>
-#ifdef linux
+#ifdef __linux__
 #include <sys/utsname.h>
 #endif
 #ifdef HAVE_GETOPT_H
@@ -44,22 +44,15 @@ extern int optind;
 #include <sys/ioctl.h>
 #include <sys/types.h>
 
-#include <linux/ext2_fs.h>
-#ifdef HAVE_LINUX_MAJOR_H
-#include <linux/major.h>
-#include <sys/stat.h>          /* Only need sys/stat.h for major nr test */
-#endif
-
+#include "ext2fs/ext2_fs.h"
 #include "et/com_err.h"
 #include "uuid/uuid.h"
 #include "e2p/e2p.h"
 #include "ext2fs/ext2fs.h"
+#include "util.h"
 #include "../version.h"
 #include "nls-enable.h"
 
-/* Everything is STDC, these days */
-#define NOARGS void
-
 #define STRIDE_LENGTH 8
 
 #ifndef __sparc__
@@ -70,34 +63,37 @@ extern int isatty(int);
 extern FILE *fpopen(const char *cmd, const char *mode);
 
 const char * program_name = "mke2fs";
-const char * device_name = NULL;
+const char * device_name /* = NULL */;
 
 /* Command line options */
-int    cflag = 0;
-int    verbose = 0;
-int    quiet = 0;
-int    super_only = 0;
-int    force = 0;
-int    noaction = 0;
-char   *bad_blocks_filename = 0;
-__u32  fs_stride = 0;
+int    cflag;
+int    verbose;
+int    quiet;
+int    super_only;
+int    force;
+int    noaction;
+int    journal_size;
+int    journal_flags;
+char   *bad_blocks_filename;
+__u32  fs_stride;
 
 struct ext2_super_block param;
-char *creator_os = NULL;
-char *volume_label = NULL;
-char *mount_dir = NULL;
+char *creator_os;
+char *volume_label;
+char *mount_dir;
+char *journal_device;
+int sync_kludge;       /* Set using the MKE2FS_SYNC env. option */
 
-static void usage(NOARGS), check_plausibility(NOARGS), check_mount(NOARGS);
+int sys_page_size = 4096;
 
-static void usage(NOARGS)
+static void usage(void)
 {
        fprintf(stderr, _("Usage: %s [-c|-t|-l filename] [-b block-size] "
-       "[-f fragment-size]\n\t[-i bytes-per-inode] "
+       "[-f fragment-size]\n\t[-i bytes-per-inode] [-j] [-J journal-options]"
        " [-N number-of-inodes]\n\t[-m reserved-blocks-percentage] "
        "[-o creator-os] [-g blocks-per-group]\n\t[-L volume-label] "
        "[-M last-mounted-directory] [-O feature[,...]]\n\t"
-       "[-r fs-revision] [-R raid_opts] [-s sparse-super-flag]\n\t"
-       "[-qvSV] device [blocks-count]\n"),
+       "[-r fs-revision] [-R raid_opts] [-qvSV] device [blocks-count]\n"),
                program_name);
        exit(1);
 }
@@ -123,85 +119,6 @@ static int int_log10(unsigned int arg)
        return l;
 }
 
-static void proceed_question(NOARGS)
-{
-       char buf[256];
-       char *short_yes = _("yY");
-
-       fflush(stdout);
-       fflush(stderr);
-       printf(_("Proceed anyway? (y,n) "));
-       buf[0] = 0;
-       fgets(buf, sizeof(buf), stdin);
-       if (strchr(short_yes, buf[0]) == 0)
-               exit(1);
-}
-
-#ifndef SCSI_BLK_MAJOR
-#define SCSI_BLK_MAJOR(M)  ((M) == SCSI_DISK_MAJOR || (M) == SCSI_CDROM_MAJOR)
-#endif
-
-static void check_plausibility(NOARGS)
-{
-#ifdef HAVE_LINUX_MAJOR_H
-#ifndef MAJOR
-#define MAJOR(dev)     ((dev)>>8)
-#define MINOR(dev)     ((dev) & 0xff)
-#endif
-
-       int val;
-       struct stat s;
-       
-       val = stat(device_name, &s);
-       
-       if(val == -1) {
-               fprintf(stderr, _("Could not stat %s --- %s\n"),
-                       device_name, error_message(errno));
-               if (errno == ENOENT)
-                       fprintf(stderr, _("\nThe device apparently does "
-                              "not exist; did you specify it correctly?\n"));
-               exit(1);
-       }
-       if(!S_ISBLK(s.st_mode)) {
-               printf(_("%s is not a block special device.\n"), device_name);
-               proceed_question();
-               return;
-       } else if ((MAJOR(s.st_rdev) == HD_MAJOR &&
-                   MINOR(s.st_rdev)%64 == 0) ||
-                  (SCSI_BLK_MAJOR(MAJOR(s.st_rdev)) &&
-                      MINOR(s.st_rdev)%16 == 0)) {
-               printf(_("%s is entire device, not just one partition!\n"),
-                      device_name);
-               proceed_question();
-       }
-#endif
-}
-
-static void check_mount(NOARGS)
-{
-       errcode_t       retval;
-       int             mount_flags;
-
-       retval = ext2fs_check_if_mounted(device_name, &mount_flags);
-       if (retval) {
-               com_err("ext2fs_check_if_mount", retval,
-                       _("while determining whether %s is mounted."),
-                       device_name);
-               return;
-       }
-       if (!(mount_flags & EXT2_MF_MOUNTED))
-               return;
-
-       fprintf(stderr, _("%s is mounted; "), device_name);
-       if (force) {
-               fprintf(stderr, _("mke2fs forced anyway.  "
-                       "Hope /etc/mtab is incorrect.\n"));
-       } else {
-               fprintf(stderr, _("will not make a filesystem here!\n"));
-               exit(1);
-       }
-}
-
 /*
  * This function sets the default parameters for a filesystem
  *
@@ -210,6 +127,7 @@ static void check_mount(NOARGS)
  * of zero meaning that it is the default parameter for the type.
  * Note that order is important in the table below.
  */
+#define DEF_MAX_BLOCKSIZE -1
 static char default_str[] = "default";
 struct mke2fs_defaults {
        const char      *type;
@@ -220,19 +138,22 @@ struct mke2fs_defaults {
        { default_str, 0, 4096, 8192 },
        { default_str, 512, 1024, 4096 },
        { default_str, 3, 1024, 8192 },
+       { "journal", 0, 4096, 8192 },
        { "news", 0, 4096, 4096 },
+       { "largefile", 0, DEF_MAX_BLOCKSIZE, 1024 * 1024 },
+       { "largefile4", 0, DEF_MAX_BLOCKSIZE, 4096 * 1024 },
        { 0, 0, 0, 0},
 };
 
-static void set_fs_defaults(char *fs_type, struct ext2fs_sb *super,
+static void set_fs_defaults(const char *fs_type,
+                           struct ext2_super_block *super,
                            int blocksize, int *inode_ratio)
 {
        int     megs;
        int     ratio = 0;
        struct mke2fs_defaults *p;
 
-       megs = (super->s_blocks_count * (EXT2_BLOCK_SIZE(super) / 1024) /
-               1024);
+       megs = super->s_blocks_count * (EXT2_BLOCK_SIZE(super) / 1024) / 1024;
        if (inode_ratio)
                ratio = *inode_ratio;
        if (!fs_type)
@@ -245,8 +166,11 @@ static void set_fs_defaults(char *fs_type, struct ext2fs_sb *super,
                    (megs > p->size))
                        continue;
                if (ratio == 0)
-                       *inode_ratio = p->inode_ratio;
+                       *inode_ratio = p->inode_ratio < blocksize ?
+                               blocksize : p->inode_ratio;
                if (blocksize == 0) {
+                       if (p->blocksize == DEF_MAX_BLOCKSIZE)
+                               p->blocksize = sys_page_size;
                        super->s_log_frag_size = super->s_log_block_size =
                                int_log2(p->blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
                }
@@ -260,7 +184,7 @@ static void set_fs_defaults(char *fs_type, struct ext2fs_sb *super,
  */
 static void invalid_block(ext2_filsys fs, blk_t blk)
 {
-       printf(_("Bad block %u out of range; ignored.\n"), blk);
+       fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
        return;
 }
 
@@ -297,9 +221,9 @@ static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
        errcode_t       retval;
        char            buf[1024];
 
-       sprintf(buf, "badblocks -b %d %s%s %d", fs->blocksize,
-               quiet ? "" : "-s ", fs->device_name,
-               fs->super->s_blocks_count);
+       sprintf(buf, "badblocks -b %d %s%s%s %d", fs->blocksize,
+               quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
+               fs->device_name, fs->super->s_blocks_count);
        if (verbose)
                printf(_("Running command: %s\n"), buf);
        f = popen(buf, "r");
@@ -337,7 +261,7 @@ static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
         */
        must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
        for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
-               if (badblocks_list_test(bb_list, i)) {
+               if (ext2fs_badblocks_list_test(bb_list, i)) {
                        fprintf(stderr, _("Block %d in primary "
                                "superblock/group descriptor area bad.\n"), i);
                        fprintf(stderr, _("Blocks %d through %d must be good "
@@ -359,8 +283,8 @@ static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
        for (i = 1; i < fs->group_desc_count; i++) {
                group_bad = 0;
                for (j=0; j < fs->desc_blocks+1; j++) {
-                       if (badblocks_list_test(bb_list, group_block +
-                                               j)) {
+                       if (ext2fs_badblocks_list_test(bb_list,
+                                                      group_block + j)) {
                                if (!group_bad) 
                                        fprintf(stderr,
 _("Warning: the backup superblock/group descriptors at block %d contain\n"
@@ -378,71 +302,153 @@ _("Warning: the backup superblock/group descriptors at block %d contain\n"
        /*
         * Mark all the bad blocks as used...
         */
-       retval = badblocks_list_iterate_begin(bb_list, &bb_iter);
+       retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
        if (retval) {
-               com_err("badblocks_list_iterate_begin", retval,
+               com_err("ext2fs_badblocks_list_iterate_begin", retval,
                        _("while marking bad blocks as used"));
                exit(1);
        }
-       while (badblocks_list_iterate(bb_iter, &blk)) 
+       while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) 
                ext2fs_mark_block_bitmap(fs->block_map, blk);
-       badblocks_list_iterate_end(bb_iter);
+       ext2fs_badblocks_list_iterate_end(bb_iter);
 }
 
-static void write_inode_tables(ext2_filsys fs)
-{
-       errcode_t       retval;
-       blk_t           blk;
-       int             i, j, num, count;
-       char            *buf;
-       char            format[20], backup[80];
-       int             sync_kludge = 0;
-       char            *mke2fs_sync;
+/*
+ * These functions implement a generalized progress meter.
+ */
+struct progress_struct {
+       char            format[20];
+       char            backup[80];
+       __u32           max;
+};
 
-       mke2fs_sync = getenv("MKE2FS_SYNC");
-       if (mke2fs_sync)
-               sync_kludge = atoi(mke2fs_sync);
+static void progress_init(struct progress_struct *progress,
+                         const char *label,__u32 max)
+{
+       int     i;
 
-       buf = malloc(fs->blocksize * STRIDE_LENGTH);
-       if (!buf) {
-               com_err("malloc", ENOMEM,
-                       _("while allocating zeroizing buffer"));
-               exit(1);
-       }
-       memset(buf, 0, fs->blocksize * STRIDE_LENGTH);
+       memset(progress, 0, sizeof(struct progress_struct));
+       if (quiet)
+               return;
 
        /*
         * Figure out how many digits we need
         */
-       i = int_log10(fs->group_desc_count);
-       sprintf(format, "%%%dd/%%%dld", i, i);
-       memset(backup, '\b', sizeof(backup)-1);
-       backup[sizeof(backup)-1] = 0;
-       if ((2*i)+1 < sizeof(backup))
-               backup[(2*i)+1] = 0;
+       i = int_log10(max);
+       sprintf(progress->format, "%%%dd/%%%dld", i, i);
+       memset(progress->backup, '\b', sizeof(progress->backup)-1);
+       progress->backup[sizeof(progress->backup)-1] = 0;
+       if ((2*i)+1 < sizeof(progress->backup))
+               progress->backup[(2*i)+1] = 0;
+       progress->max = max;
+
+       fputs(label, stdout);
+       fflush(stdout);
+}
+
+static void progress_update(struct progress_struct *progress, __u32 val)
+{
+       if (progress->format[0] == 0)
+               return;
+       printf(progress->format, val, progress->max);
+       fputs(progress->backup, stdout);
+}
+
+static void progress_close(struct progress_struct *progress)
+{
+       if (progress->format[0] == 0)
+               return;
+       fputs(_("done                            \n"), stdout);
+}
+
+
+/*
+ * Helper function which zeros out _num_ blocks starting at _blk_.  In
+ * case of an error, the details of the error is returned via _ret_blk_
+ * and _ret_count_ if they are non-NULL pointers.  Returns 0 on
+ * success, and an error code on an error.
+ *
+ * As a special case, if the first argument is NULL, then it will
+ * attempt to free the static zeroizing buffer.  (This is to keep
+ * programs that check for memory leaks happy.)
+ */
+static errcode_t zero_blocks(ext2_filsys fs, blk_t blk, int num,
+                            struct progress_struct *progress,
+                            blk_t *ret_blk, int *ret_count)
+{
+       int             j, count, next_update, next_update_incr;
+       static char     *buf;
+       errcode_t       retval;
+
+       /* If fs is null, clean up the static buffer and return */
+       if (!fs) {
+               if (buf) {
+                       free(buf);
+                       buf = 0;
+               }
+               return 0;
+       }
+       /* Allocate the zeroizing buffer if necessary */
+       if (!buf) {
+               buf = malloc(fs->blocksize * STRIDE_LENGTH);
+               if (!buf) {
+                       com_err("malloc", ENOMEM,
+                               _("while allocating zeroizing buffer"));
+                       exit(1);
+               }
+               memset(buf, 0, fs->blocksize * STRIDE_LENGTH);
+       }
+       /* OK, do the write loop */
+       next_update = 0;
+       next_update_incr = num / 100;
+       if (next_update_incr < 1)
+               next_update_incr = 1;
+       for (j=0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH) {
+               count = num - j;
+               if (count > STRIDE_LENGTH)
+                       count = STRIDE_LENGTH;
+               retval = io_channel_write_blk(fs->io, blk, count, buf);
+               if (retval) {
+                       if (ret_count)
+                               *ret_count = count;
+                       if (ret_blk)
+                               *ret_blk = blk;
+                       return retval;
+               }
+               if (progress && j > next_update) {
+                       next_update += num / 100;
+                       progress_update(progress, blk);
+               }
+       }
+       return 0;
+}      
+
+static void write_inode_tables(ext2_filsys fs)
+{
+       errcode_t       retval;
+       blk_t           blk;
+       int             i, num;
+       struct progress_struct progress;
+
+       if (quiet)
+               memset(&progress, 0, sizeof(progress));
+       else
+               progress_init(&progress, _("Writing inode tables: "),
+                             fs->group_desc_count);
 
-       if (!quiet)
-               printf(_("Writing inode tables: "));
        for (i = 0; i < fs->group_desc_count; i++) {
-               if (!quiet)
-                       printf(format, i, fs->group_desc_count);
+               progress_update(&progress, i);
                
                blk = fs->group_desc[i].bg_inode_table;
                num = fs->inode_blocks_per_group;
-               
-               for (j=0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH) {
-                       if (num-j > STRIDE_LENGTH)
-                               count = STRIDE_LENGTH;
-                       else
-                               count = num - j;
-                       retval = io_channel_write_blk(fs->io, blk, count, buf);
-                       if (retval)
-                               printf(_("Warning: could not write %d blocks "
-                                      "in inode table starting at %d: %s\n"),
-                                      count, blk, error_message(retval));
+
+               retval = zero_blocks(fs, blk, num, 0, &blk, &num);
+               if (retval) {
+                       fprintf(stderr, _("\nCould not write %d blocks "
+                               "in inode table starting at %d: %s\n"),
+                               num, blk, error_message(retval));
+                       exit(1);
                }
-               if (!quiet) 
-                       fputs(backup, stdout);
                if (sync_kludge) {
                        if (sync_kludge == 1)
                                sync();
@@ -450,9 +456,8 @@ static void write_inode_tables(ext2_filsys fs)
                                sync();
                }
        }
-       free(buf);
-       if (!quiet)
-               fputs(_("done                            \n"), stdout);
+       zero_blocks(0, 0, 0, 0, 0, 0);
+       progress_close(&progress);
 }
 
 static void create_root_dir(ext2_filsys fs)
@@ -487,11 +492,12 @@ static void create_root_dir(ext2_filsys fs)
 static void create_lost_and_found(ext2_filsys fs)
 {
        errcode_t               retval;
-       ino_t                   ino;
+       ext2_ino_t              ino;
        const char              *name = "lost+found";
        int                     i;
        int                     lpf_size = 0;
 
+       fs->umask = 077;
        retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
        if (retval) {
                com_err("ext2fs_mkdir", retval,
@@ -515,7 +521,7 @@ static void create_lost_and_found(ext2_filsys fs)
                                _("while expanding /lost+found"));
                        exit(1);
                }
-       }               
+       }
 }
 
 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
@@ -536,8 +542,8 @@ static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 
 static void reserve_inodes(ext2_filsys fs)
 {
-       ino_t   i;
-       int     group;
+       ext2_ino_t      i;
+       int             group;
 
        for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) {
                ext2fs_mark_inode_bitmap(fs->inode_map, i);
@@ -548,31 +554,99 @@ static void reserve_inodes(ext2_filsys fs)
        ext2fs_mark_ib_dirty(fs);
 }
 
-static void zap_sector(ext2_filsys fs, int sect)
+#define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
+#define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
+#define BSD_LABEL_OFFSET        64
+
+static void zap_sector(ext2_filsys fs, int sect, int nsect)
 {
-       char buf[512];
+       char *buf;
        int retval;
+       unsigned int *magic;
 
-       memset(buf, 0, 512);
-       
+       buf = malloc(512*nsect);
+       if (!buf) {
+               printf(_("Out of memory erasing sectors %d-%d\n"),
+                      sect, sect + nsect - 1);
+               exit(1);
+       }
+
+       if (sect == 0) {
+               /* Check for a BSD disklabel, and don't erase it if so */
+               retval = io_channel_read_blk(fs->io, 0, -512, buf);
+               if (retval)
+                       fprintf(stderr,
+                               _("Warning: could not read block 0: %s\n"),
+                               error_message(retval));
+               else {
+                       magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
+                       if ((*magic == BSD_DISKMAGIC) ||
+                           (*magic == BSD_MAGICDISK))
+                               return;
+               }
+       }
+
+       memset(buf, 0, 512*nsect);
        io_channel_set_blksize(fs->io, 512);
-       retval = io_channel_write_blk(fs->io, sect, -512, buf);
+       retval = io_channel_write_blk(fs->io, sect, -512*nsect, buf);
        io_channel_set_blksize(fs->io, fs->blocksize);
+       free(buf);
        if (retval)
-               printf(_("Warning: could not erase sector %d: %s\n", sect),
-                      error_message(retval));
+               fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
+                       sect, error_message(retval));
+}
+
+static void create_journal_dev(ext2_filsys fs)
+{
+       struct progress_struct progress;
+       errcode_t               retval;
+       char                    *buf;
+       blk_t                   blk;
+       int                     count;
+
+       retval = ext2fs_create_journal_superblock(fs,
+                                 fs->super->s_blocks_count, 0, &buf);
+       if (retval) {
+               com_err("create_journal_dev", retval,
+                       _("while initializing journal superblock"));
+               exit(1);
+       }
+       if (quiet)
+               memset(&progress, 0, sizeof(progress));
+       else
+               progress_init(&progress, _("Zeroing journal device: "),
+                             fs->super->s_blocks_count);
+
+       retval = zero_blocks(fs, 0, fs->super->s_blocks_count,
+                            &progress, &blk, &count);
+       if (retval) {
+               com_err("create_journal_dev", retval,
+                       _("while zeroing journal device (block %u, count %d)"),
+                       blk, count);
+               exit(1);
+       }
+       zero_blocks(0, 0, 0, 0, 0, 0);
+
+       retval = io_channel_write_blk(fs->io,
+                                     fs->super->s_first_data_block+1,
+                                     1, buf);
+       if (retval) {
+               com_err("create_journal_dev", retval,
+                       _("while writing journal superblock"));
+               exit(1);
+       }
+       progress_close(&progress);
 }
-       
 
 static void show_stats(ext2_filsys fs)
 {
-       struct ext2fs_sb        *s = (struct ext2fs_sb *) fs->super;
+       struct ext2_super_block *s = fs->super;
        char                    buf[80];
        blk_t                   group_block;
        int                     i, need, col_left;
        
        if (param.s_blocks_count != s->s_blocks_count)
-               printf(_("warning: %d blocks unused.\n\n"),
+               fprintf(stderr, _("warning: %d blocks unused.\n\n"),
                       param.s_blocks_count - s->s_blocks_count);
 
        memset(buf, 0, sizeof(buf));
@@ -597,9 +671,9 @@ static void show_stats(ext2_filsys fs)
               100.0 * s->s_r_blocks_count / s->s_blocks_count);
        printf(_("First data block=%u\n"), s->s_first_data_block);
        if (fs->group_desc_count > 1)
-               printf(_("%lu block groups\n"), fs->group_desc_count);
+               printf(_("%u block groups\n"), fs->group_desc_count);
        else
-               printf(_("%lu block group\n"), fs->group_desc_count);
+               printf(_("%u block group\n"), fs->group_desc_count);
        printf(_("%u blocks per group, %u fragments per group\n"),
               s->s_blocks_per_group, s->s_frags_per_group);
        printf(_("%u inodes per group\n"), s->s_inodes_per_group);
@@ -629,22 +703,6 @@ static void show_stats(ext2_filsys fs)
        printf("\n\n");
 }
 
-#ifndef HAVE_STRCASECMP
-static int strcasecmp (char *s1, char *s2)
-{
-       while (*s1 && *s2) {
-               int ch1 = *s1++, ch2 = *s2++;
-               if (isupper (ch1))
-                       ch1 = tolower (ch1);
-               if (isupper (ch2))
-                       ch2 = tolower (ch2);
-               if (ch1 != ch2)
-                       return ch1 - ch2;
-       }
-       return *s1 ? 1 : *s2 ? -1 : 0;
-}
-#endif
-
 /*
  * Set the S_CREATOR_OS field.  Return true if OS is known,
  * otherwise, 0.
@@ -719,8 +777,9 @@ static void parse_raid_opts(const char *opts)
 }      
 
 static __u32 ok_features[3] = {
-       0,                                      /* Compat */
-       EXT2_FEATURE_INCOMPAT_FILETYPE,         /* Incompat */
+       EXT3_FEATURE_COMPAT_HAS_JOURNAL,        /* Compat */
+       EXT2_FEATURE_INCOMPAT_FILETYPE|         /* Incompat */
+               EXT3_FEATURE_INCOMPAT_JOURNAL_DEV,
        EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER     /* R/O compat */
 };
 
@@ -733,28 +792,20 @@ static void PRS(int argc, char *argv[])
        blk_t           group_blk_max = 8192;
        int             blocksize = 0;
        int             inode_ratio = 0;
+       int             inode_size = 0;
        int             reserved_ratio = 5;
-       ino_t           num_inodes = 0;
+       ext2_ino_t      num_inodes = 0;
        errcode_t       retval;
-       int             sparse_option = 0;
        char *          oldpath = getenv("PATH");
-       struct ext2fs_sb *param_ext2 = (struct ext2fs_sb *) &param;
        char *          raid_opts = 0;
-       char *          fs_type = 0;
-       const char *    feature_set = "filetype,sparse_super";
+       const char *    fs_type = 0;
+       int             default_features = 1;
        blk_t           dev_size;
-#ifdef linux
+#ifdef __linux__
        struct          utsname ut;
-
-       if (uname(&ut)) {
-               perror("uname");
-               exit(1);
-       }
-       if ((ut.release[0] == '1') ||
-           (ut.release[0] == '2' && ut.release[1] == '.' &&
-            ut.release[2] < '2' && ut.release[3] == '.'))
-               feature_set = NULL;
 #endif
+       long            sysval;
+
        /* Update our PATH to include /sbin  */
        if (oldpath) {
                char *newpath;
@@ -767,38 +818,82 @@ static void PRS(int argc, char *argv[])
        } else
                putenv (PATH_SET);
 
+       tmp = getenv("MKE2FS_SYNC");
+       if (tmp)
+               sync_kludge = atoi(tmp);
+
+       /* Determine the system page size if possible */
+#ifdef HAVE_SYSCONF
+#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
+#define _SC_PAGESIZE _SC_PAGE_SIZE
+#endif
+#ifdef _SC_PAGESIZE
+       sysval = sysconf(_SC_PAGESIZE);
+       if (sysval > 0)
+               sys_page_size = sysval;
+#endif /* _SC_PAGESIZE */
+#endif /* HAVE_SYSCONF */
+       
        setbuf(stdout, NULL);
        setbuf(stderr, NULL);
        initialize_ext2_error_table();
        memset(&param, 0, sizeof(struct ext2_super_block));
        param.s_rev_level = 1;  /* Create revision 1 filesystems now */
-       
-       fprintf (stderr, _("mke2fs %s, %s for EXT2 FS %s, %s\n"),
-                E2FSPROGS_VERSION, E2FSPROGS_DATE,
-                EXT2FS_VERSION, EXT2FS_DATE);
-       if (argc && *argv)
-               program_name = *argv;
+       param.s_feature_incompat |= EXT2_FEATURE_INCOMPAT_FILETYPE;
+       param.s_feature_ro_compat |= EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
+               
+#ifdef __linux__
+       if (uname(&ut)) {
+               perror("uname");
+               exit(1);
+       }
+       if ((ut.release[0] == '1') ||
+           (ut.release[0] == '2' && ut.release[1] == '.' &&
+            ut.release[2] < '2' && ut.release[3] == '.')) {
+               param.s_rev_level = 0;
+               param.s_feature_incompat = 0;
+               param.s_feature_compat = 0;
+               param.s_feature_ro_compat = 0;
+       }
+#endif
+       fprintf (stderr, "mke2fs %s (%s)\n",
+                E2FSPROGS_VERSION, E2FSPROGS_DATE);
+
+       if (argc && *argv) {
+               program_name = get_progname(*argv);
+
+               /* If called as mkfs.ext3, create a journal inode */
+               if (!strcmp(program_name, "mkfs.ext3"))
+                       journal_size = -1;
+       }
+
        while ((c = getopt (argc, argv,
-                   "b:cf:g:i:l:m:no:qr:R:s:tvI:ST:FL:M:N:O:V")) != EOF)
+                   "b:cf:g:i:jl:m:no:qr:R:s:tvI:J:ST:FL:M:N:O:V")) != EOF)
                switch (c) {
                case 'b':
                        blocksize = strtoul(optarg, &tmp, 0);
-                       if (blocksize < 1024 || blocksize > 4096 || *tmp) {
+                       if (blocksize < EXT2_MIN_BLOCK_SIZE ||
+                           blocksize > EXT2_MAX_BLOCK_SIZE || *tmp) {
                                com_err(program_name, 0,
                                        _("bad block size - %s"), optarg);
                                exit(1);
                        }
+                       if (blocksize > 4096)
+                               fprintf(stderr, _("Warning: blocksize %d not "
+                                                 "usable on most systems.\n"),
+                                       blocksize);
                        param.s_log_block_size =
                                int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
                        group_blk_max = blocksize * 8;
                        break;
-               case 'c':
-               case 't':       /* Check for bad blocks */
-                       cflag = 1;
+               case 'c':       /* Check for bad blocks */
+               case 't':       /* deprecated */
+                       cflag++;
                        break;
                case 'f':
                        size = strtoul(optarg, &tmp, 0);
-                       if (size < 1024 || size > 4096 || *tmp) {
+                       if (size < EXT2_MIN_BLOCK_SIZE ||
+                           size > EXT2_MAX_BLOCK_SIZE || *tmp) {
                                com_err(program_name, 0,
                                        _("bad fragment size - %s"),
                                        optarg);
@@ -806,7 +901,7 @@ static void PRS(int argc, char *argv[])
                        }
                        param.s_log_frag_size =
                                int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE);
-                       printf(_("Warning: fragments not supported.  "
+                       fprintf(stderr, _("Warning: fragments not supported.  "
                               "Ignoring -f option\n"));
                        break;
                case 'g':
@@ -824,13 +919,25 @@ static void PRS(int argc, char *argv[])
                        break;
                case 'i':
                        inode_ratio = strtoul(optarg, &tmp, 0);
-                       if (inode_ratio < 1024 || inode_ratio > 256 * 1024 ||
+                       if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
+                           inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 ||
                            *tmp) {
                                com_err(program_name, 0,
-                                       _("bad inode ratio - %s"), optarg);
+                                       _("bad inode ratio %s (min %d/max %d"),
+                                       optarg, EXT2_MIN_BLOCK_SIZE,
+                                       EXT2_MAX_BLOCK_SIZE);
                                exit(1);
                        }
                        break;
+               case 'J':
+                       parse_journal_opts(optarg);
+                       break;
+               case 'j':
+                       param.s_feature_compat |=
+                               EXT3_FEATURE_COMPAT_HAS_JOURNAL;
+                       if (!journal_size)
+                               journal_size = -1;
+                       break;
                case 'l':
                        bad_blocks_filename = malloc(strlen(optarg)+1);
                        if (!bad_blocks_filename) {
@@ -857,13 +964,28 @@ static void PRS(int argc, char *argv[])
                        break;
                case 'r':
                        param.s_rev_level = atoi(optarg);
+                       if (param.s_rev_level == EXT2_GOOD_OLD_REV) {
+                               param.s_feature_incompat = 0;
+                               param.s_feature_compat = 0;
+                               param.s_feature_ro_compat = 0;
+                       }
                        break;
-               case 's':
-                       sparse_option = atoi(optarg);
+               case 's':       /* deprecated */
+                       if (atoi(optarg))
+                               param.s_feature_ro_compat |=
+                                       EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
+                       else 
+                               param.s_feature_ro_compat &=
+                                       ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
                        break;
 #ifdef EXT2_DYNAMIC_REV
                case 'I':
-                       param.s_inode_size = atoi(optarg);
+                       inode_size = strtoul(optarg, &tmp, 0);
+                       if (*tmp) {
+                               com_err(program_name, 0,
+                                       _("bad inode size - %s"), optarg);
+                               exit(1);
+                       }
                        break;
 #endif
                case 'N':
@@ -885,7 +1007,21 @@ static void PRS(int argc, char *argv[])
                        mount_dir = optarg;
                        break;
                case 'O':
-                       feature_set = optarg;
+                       if (!strcmp(optarg, "none") || default_features) {
+                               param.s_feature_compat = 0;
+                               param.s_feature_incompat = 0;
+                               param.s_feature_ro_compat = 0;
+                               default_features = 0;
+                       }
+                       if (!strcmp(optarg, "none"))
+                               break;
+                       if (e2p_edit_feature(optarg,
+                                           &param.s_feature_compat,
+                                           ok_features)) {
+                               fprintf(stderr,
+                                       _("Invalid filesystem option set: %s\n"), optarg);
+                               exit(1);
+                       }
                        break;
                case 'R':
                        raid_opts = optarg;
@@ -924,9 +1060,56 @@ static void PRS(int argc, char *argv[])
        if (raid_opts)
                parse_raid_opts(raid_opts);
 
+       /*
+        * If there's no blocksize specified and there is a journal
+        * device, use it to figure out the blocksize
+        */
+       if (blocksize == 0 && journal_device) {
+               ext2_filsys     jfs;
+
+               retval = ext2fs_open(journal_device,
+                                    EXT2_FLAG_JOURNAL_DEV_OK, 0,
+                                    0, unix_io_manager, &jfs);
+               if (retval) {
+                       com_err(program_name, retval,
+                               _("while trying to open journal device %s\n"),
+                               journal_device);
+                       exit(1);
+               }
+               blocksize = jfs->blocksize;
+               param.s_log_block_size =
+                       int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
+               ext2fs_close(jfs);
+       }
+
+       if (blocksize > sys_page_size) {
+               if (!force) {
+                       com_err(program_name, 0,
+                               _("%d-byte blocks too big for system (max %d)"),
+                               blocksize, sys_page_size);
+                       proceed_question();
+               }
+               fprintf(stderr, _("Warning: %d-byte blocks too big for system "
+                                 "(max %d), forced to continue\n"),
+                       blocksize, sys_page_size);
+       }
+
+       if (param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
+               if (!fs_type)
+                       fs_type = "journal";
+               reserved_ratio = 0;
+               param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
+               param.s_feature_compat = 0;
+               param.s_feature_ro_compat = 0;
+       }
+       if (param.s_rev_level == EXT2_GOOD_OLD_REV &&
+           (param.s_feature_compat || param.s_feature_ro_compat ||
+            param.s_feature_incompat))
+               param.s_rev_level = 1;  /* Create a revision 1 filesystem */
+
        if (!force)
-               check_plausibility();
-       check_mount();
+               check_plausibility(device_name);
+       check_mount(device_name, force, _("filesystem"));
 
        param.s_log_frag_size = param.s_log_block_size;
 
@@ -971,7 +1154,15 @@ static void PRS(int argc, char *argv[])
                proceed_question();
        }
 
-       set_fs_defaults(fs_type, param_ext2, blocksize, &inode_ratio);
+       /*
+        * If the user asked for HAS_JOURNAL, then make sure a journal
+        * gets created.
+        */
+       if ((param.s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
+           !journal_size)
+               journal_size = -1;
+
+       set_fs_defaults(fs_type, &param, blocksize, &inode_ratio);
 
        if (param.s_blocks_per_group) {
                if (param.s_blocks_per_group < 256 ||
@@ -982,6 +1173,23 @@ static void PRS(int argc, char *argv[])
                }
        }
 
+       if (inode_size) {
+               if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
+                   inode_size > EXT2_BLOCK_SIZE(&param) ||
+                   inode_size & (inode_size - 1)) {
+                       com_err(program_name, 0,
+                               _("bad inode size %d (min %d/max %d)"),
+                               inode_size, EXT2_GOOD_OLD_INODE_SIZE,
+                               EXT2_BLOCK_SIZE(&param));
+                       exit(1);
+               }
+               if (inode_size != EXT2_GOOD_OLD_INODE_SIZE)
+                       fprintf(stderr, _("Warning: %d-byte inodes not usable "
+                               "on most systems\n"),
+                               inode_size);
+               param.s_inode_size = inode_size;
+       }
+
        /*
         * Calculate number of inodes based on the inode ratio
         */
@@ -994,20 +1202,6 @@ static void PRS(int argc, char *argv[])
         */
        param.s_r_blocks_count = (param.s_blocks_count * reserved_ratio) / 100;
 
-#ifdef EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
-       if (sparse_option)
-               param_ext2->s_feature_ro_compat |=
-                       EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
-#endif
-       if (feature_set && !strncasecmp(feature_set, "none", 4))
-               feature_set = NULL;
-       if (feature_set && e2p_edit_feature(feature_set,
-                                           &param_ext2->s_feature_compat,
-                                           ok_features)) {
-               fprintf(stderr, _("Invalid filesystem option set: %s\n"),
-                       feature_set);
-               exit(1);
-       }
 }
                                        
 int main (int argc, char *argv[])
@@ -1015,10 +1209,12 @@ int main (int argc, char *argv[])
        errcode_t       retval = 0;
        ext2_filsys     fs;
        badblocks_list  bb_list = 0;
-       struct ext2fs_sb *s;
+       int             journal_blocks;
+       int             i, val;
 
 #ifdef ENABLE_NLS
        setlocale(LC_MESSAGES, "");
+       setlocale(LC_CTYPE, "");
        bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
        textdomain(NLS_CAT_NAME);
 #endif
@@ -1037,13 +1233,22 @@ int main (int argc, char *argv[])
        /*
         * Wipe out the old on-disk superblock
         */
-       zap_sector(fs, 2);
+       if (!noaction)
+               zap_sector(fs, 2, 6);
 
        /*
         * Generate a UUID for it...
         */
-       s = (struct ext2fs_sb *) fs->super;
-       uuid_generate(s->s_uuid);
+       uuid_generate(fs->super->s_uuid);
+
+       /*
+        * Add "jitter" to the superblock's check interval so that we
+        * don't check all the filesystems at the same time.  We use a
+        * kludgy hack of using the UUID to derive a random jitter value.
+        */
+       for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
+               val += fs->super->s_uuid[i];
+       fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
 
        /*
         * Override the creator OS, if applicable
@@ -1065,18 +1270,20 @@ int main (int argc, char *argv[])
         * Set the volume label...
         */
        if (volume_label) {
-               memset(s->s_volume_name, 0, sizeof(s->s_volume_name));
-               strncpy(s->s_volume_name, volume_label,
-                       sizeof(s->s_volume_name));
+               memset(fs->super->s_volume_name, 0,
+                      sizeof(fs->super->s_volume_name));
+               strncpy(fs->super->s_volume_name, volume_label,
+                       sizeof(fs->super->s_volume_name));
        }
 
        /*
         * Set the last mount directory
         */
        if (mount_dir) {
-               memset(s->s_last_mounted, 0, sizeof(s->s_last_mounted));
-               strncpy(s->s_last_mounted, mount_dir,
-                       sizeof(s->s_last_mounted));
+               memset(fs->super->s_last_mounted, 0,
+                      sizeof(fs->super->s_last_mounted));
+               strncpy(fs->super->s_last_mounted, mount_dir,
+                       sizeof(fs->super->s_last_mounted));
        }
        
        if (!quiet || noaction)
@@ -1085,6 +1292,12 @@ int main (int argc, char *argv[])
        if (noaction)
                exit(0);
 
+       if (fs->super->s_feature_incompat &
+           EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
+               create_journal_dev(fs);
+               exit(ext2fs_close(fs) ? 1 : 0);
+       }
+
        if (bad_blocks_filename)
                read_bb_file(fs, &bb_list, bad_blocks_filename);
        if (cflag)
@@ -1102,25 +1315,109 @@ int main (int argc, char *argv[])
                fs->super->s_state |= EXT2_ERROR_FS;
                fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
        } else {
+               /* rsv must be a power of two (64kB is MD RAID sb alignment) */
+               int rsv = 65536 / fs->blocksize;
+               unsigned long blocks = fs->super->s_blocks_count;
+               unsigned long start;
+               blk_t ret_blk;
+
+#ifdef ZAP_BOOTBLOCK
+               zap_sector(fs, 0, 2);
+#endif
+
+               /*
+                * Wipe out any old MD RAID (or other) metadata at the end
+                * of the device.  This will also verify that the device is
+                * as large as we think.  Be careful with very small devices.
+                */
+               start = (blocks & ~(rsv - 1));
+               if (start > rsv)
+                       start -= rsv;
+               if (start > 0)
+                       retval = zero_blocks(fs, start, blocks - start,
+                                            NULL, &ret_blk, NULL);
+
+               if (retval) {
+                       com_err(program_name, retval,
+                               _("while zeroing block %u at end of filesystem"),
+                               ret_blk);
+               }
                write_inode_tables(fs);
                create_root_dir(fs);
                create_lost_and_found(fs);
                reserve_inodes(fs);
                create_bad_block_inode(fs, bb_list);
-#ifdef ZAP_BOOTBLOCK
-               zap_sector(fs, 0);
-#endif
        }
-       
+
+       if (journal_device) {
+               ext2_filsys     jfs;
+               
+               if (!force)
+                       check_plausibility(journal_device); 
+               check_mount(journal_device, force, _("journal"));
+
+               retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
+                                    EXT2_FLAG_JOURNAL_DEV_OK, 0,
+                                    fs->blocksize, unix_io_manager, &jfs);
+               if (retval) {
+                       com_err(program_name, retval,
+                               _("while trying to open journal device %s\n"),
+                               journal_device);
+                       exit(1);
+               }
+               if (!quiet) {
+                       printf(_("Adding journal to device %s: "), 
+                              journal_device);
+                       fflush(stdout);
+               }
+               retval = ext2fs_add_journal_device(fs, jfs);
+               if(retval) {
+                       com_err (program_name, retval, 
+                                _("\n\twhile trying to add journal to device %s"), 
+                                journal_device);
+                       exit(1);
+               }
+               if (!quiet)
+                       printf(_("done\n"));
+               ext2fs_close(jfs);
+               free(journal_device);
+       } else if (journal_size) {
+               journal_blocks = figure_journal_size(journal_size, fs);
+
+               if (!journal_blocks) {
+                       fs->super->s_feature_compat &=
+                               ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
+                       goto no_journal;
+               }
+               if (!quiet) {
+                       printf(_("Creating journal (%d blocks): "),
+                              journal_blocks);
+                       fflush(stdout);
+               }
+               retval = ext2fs_add_journal_inode(fs, journal_blocks,
+                                                 journal_flags);
+               if (retval) {
+                       com_err (program_name, retval,
+                                _("\n\twhile trying to create journal"));
+                       exit(1);
+               }
+               if (!quiet)
+                       printf(_("done\n"));
+       }
+no_journal:
+
        if (!quiet)
                printf(_("Writing superblocks and "
                       "filesystem accounting information: "));
        retval = ext2fs_flush(fs);
        if (retval) {
-               printf(_("\nWarning, had trouble writing out superblocks."));
+               fprintf(stderr,
+                       _("\nWarning, had trouble writing out superblocks."));
        }
-       if (!quiet)
-               printf(_("done\n"));
-       ext2fs_close(fs);
-       return 0;
+       if (!quiet) {
+               printf(_("done\n\n"));
+               print_check_message(fs);
+       }
+       val = ext2fs_close(fs);
+       return (retval || val) ? 1 : 0;
 }