Whamcloud - gitweb
Fix up configure so it finds mkinstalldirs
[tools/e2fsprogs.git] / resize / main.c
index 220c192..e4b4435 100644 (file)
@@ -15,6 +15,7 @@
 #define _LARGEFILE_SOURCE
 #define _LARGEFILE64_SOURCE
 
+#include "config.h"
 #ifdef HAVE_GETOPT_H
 #include <getopt.h>
 #else
@@ -35,7 +36,8 @@ extern int optind;
 
 #include "../version.h"
 
-char *program_name, *device_name, *io_options;
+char *program_name;
+static char *device_name, *io_options;
 
 static void usage (char *prog)
 {
@@ -101,7 +103,7 @@ static void determine_fs_stride(ext2_filsys fs)
 {
        unsigned int    group;
        unsigned long long sum;
-       unsigned int    has_sb, prev_has_sb, num;
+       unsigned int    has_sb, prev_has_sb = 0, num;
        int             i_stride, b_stride;
 
        if (fs->stride)
@@ -111,11 +113,11 @@ static void determine_fs_stride(ext2_filsys fs)
                has_sb = ext2fs_bg_has_super(fs, group);
                if (group == 0 || has_sb != prev_has_sb)
                        goto next;
-               b_stride = fs->group_desc[group].bg_block_bitmap -
-                       fs->group_desc[group-1].bg_block_bitmap -
+               b_stride = ext2fs_block_bitmap_loc(fs, group) -
+                       ext2fs_block_bitmap_loc(fs, group - 1) -
                        fs->super->s_blocks_per_group;
-               i_stride = fs->group_desc[group].bg_inode_bitmap -
-                       fs->group_desc[group-1].bg_inode_bitmap -
+               i_stride = ext2fs_inode_bitmap_loc(fs, group) -
+                       ext2fs_inode_bitmap_loc(fs, group - 1) -
                        fs->super->s_blocks_per_group;
                if (b_stride != i_stride ||
                    b_stride < 0)
@@ -146,6 +148,18 @@ static void determine_fs_stride(ext2_filsys fs)
 #endif
 }
 
+static void bigalloc_check(ext2_filsys fs, int force)
+{
+       if (!force && EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+                               EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
+               fprintf(stderr, "%s", _("\nResizing bigalloc file systems has "
+                                       "not been fully tested.  Proceed at\n"
+                                       "your own risk!  Use the force option "
+                                       "if you want to go ahead anyway.\n\n"));
+               exit(1);
+       }
+}
+
 int main (int argc, char ** argv)
 {
        errcode_t       retval;
@@ -158,17 +172,13 @@ int main (int argc, char ** argv)
        int             force_min_size = 0;
        int             print_min_size = 0;
        int             fd, ret;
-       blk_t           new_size = 0;
-       blk_t           max_size = 0;
-       blk_t           min_size = 0;
+       blk64_t         new_size = 0;
+       blk64_t         max_size = 0;
+       blk64_t         min_size = 0;
        io_manager      io_ptr;
        char            *new_size_str = 0;
        int             use_stride = -1;
-#ifdef HAVE_FSTAT64
-       struct stat64   st_buf;
-#else
-       struct stat     st_buf;
-#endif
+       ext2fs_struct_stat st_buf;
        __s64           new_file_size;
        unsigned int    sys_page_size = 4096;
        long            sysval;
@@ -180,6 +190,7 @@ int main (int argc, char ** argv)
        setlocale(LC_CTYPE, "");
        bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
        textdomain(NLS_CAT_NAME);
+       set_com_err_gettext(gettext);
 #endif
 
        add_error_table(&et_ext2_error_table);
@@ -256,22 +267,14 @@ int main (int argc, char ** argv)
                len = 2 * len;
        }
 
-#ifdef HAVE_OPEN64
-       fd = open64(device_name, O_RDWR);
-#else
-       fd = open(device_name, O_RDWR);
-#endif
+       fd = ext2fs_open_file(device_name, O_RDWR, 0);
        if (fd < 0) {
                com_err("open", errno, _("while opening %s"),
                        device_name);
                exit(1);
        }
 
-#ifdef HAVE_FSTAT64
-       ret = fstat64(fd, &st_buf);
-#else
-       ret = fstat(fd, &st_buf);
-#endif
+       ret = ext2fs_fstat(fd, &st_buf);
        if (ret < 0) {
                com_err("open", errno,
                        _("while getting stat information for %s"),
@@ -304,15 +307,29 @@ int main (int argc, char ** argv)
 
        if (!(mount_flags & EXT2_MF_MOUNTED))
                io_flags = EXT2_FLAG_RW | EXT2_FLAG_EXCLUSIVE;
+
+       io_flags |= EXT2_FLAG_64BITS;
+
        retval = ext2fs_open2(device_name, io_options, io_flags,
                              0, 0, io_ptr, &fs);
        if (retval) {
-               com_err (program_name, retval, _("while trying to open %s"),
-                        device_name);
-               printf (_("Couldn't find valid filesystem superblock.\n"));
+               com_err(program_name, retval, _("while trying to open %s"),
+                       device_name);
+               printf("%s", _("Couldn't find valid filesystem superblock.\n"));
                exit (1);
        }
 
+       if (!(mount_flags & EXT2_MF_MOUNTED)) {
+               if (!force && ((fs->super->s_lastcheck < fs->super->s_mtime) ||
+                              (fs->super->s_state & EXT2_ERROR_FS) ||
+                              ((fs->super->s_state & EXT2_VALID_FS) == 0))) {
+                       fprintf(stderr,
+                               _("Please run 'e2fsck -f %s' first.\n\n"),
+                               device_name);
+                       exit(1);
+               }
+       }
+
        /*
         * Check for compatibility with the feature sets.  We need to
         * be more stringent than ext2fs_open().
@@ -323,29 +340,10 @@ int main (int argc, char ** argv)
                exit(1);
        }
 
-       /*
-        * XXXX   The combination of flex_bg and !resize_inode causes
-        * major problems for resize2fs, since when the group descriptors
-        * grow in size this can potentially require multiple inode
-        * tables to be moved aside to make room, and resize2fs chokes
-        * rather badly in this scenario.  It's a rare combination,
-        * except when a filesystem is expanded more than a certain
-        * size, so for now, we'll just prohibit that combination.
-        * This is something we should fix eventually, though.
-        */
-       if ((fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_FLEX_BG) &&
-           !(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
-               com_err(program_name, 0, _("%s: The combination of flex_bg "
-                                          "and\n\t!resize_inode features "
-                                          "is not supported by resize2fs.\n"),
-                       device_name);
-               exit(1);
-       }
-
-       min_size = calculate_minimum_resize_size(fs);
+       min_size = calculate_minimum_resize_size(fs, flags);
 
        if (print_min_size) {
-               printf(_("Estimated minimum size of the filesystem: %u\n"),
+               printf(_("Estimated minimum size of the filesystem: %llu\n"),
                       min_size);
                exit(0);
        }
@@ -367,18 +365,18 @@ int main (int argc, char ** argv)
         * defaults and for making sure the new filesystem doesn't
         * exceed the partition size.
         */
-       retval = ext2fs_get_device_size(device_name, fs->blocksize,
-                                       &max_size);
+       retval = ext2fs_get_device_size2(device_name, fs->blocksize,
+                                        &max_size);
        if (retval) {
-               com_err(program_name, retval,
+               com_err(program_name, retval, "%s",
                        _("while trying to determine filesystem size"));
                exit(1);
        }
        if (force_min_size)
                new_size = min_size;
        else if (new_size_str) {
-               new_size = parse_num_blocks(new_size_str,
-                                           fs->super->s_log_block_size);
+               new_size = parse_num_blocks2(new_size_str,
+                                            fs->super->s_log_block_size);
                if (new_size == 0) {
                        com_err(program_name, 0,
                                _("Invalid new size: %s\n"), new_size_str);
@@ -390,15 +388,27 @@ int main (int argc, char ** argv)
                if (sys_page_size > fs->blocksize)
                        new_size &= ~((sys_page_size / fs->blocksize)-1);
        }
+       if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
+                                      EXT4_FEATURE_INCOMPAT_64BIT)) {
+               /* Take 16T down to 2^32-1 blocks */
+               if (new_size == (1ULL << 32))
+                       new_size--;
+               else if (new_size > (1ULL << 32)) {
+                       com_err(program_name, 0, "%s",
+                               _("New size too large to be "
+                                 "expressed in 32 bits\n"));
+                       exit(1);
+               }
+       }
 
        if (!force && new_size < min_size) {
                com_err(program_name, 0,
-                       _("New size smaller than minimum (%u)\n"), min_size);
+                       _("New size smaller than minimum (%llu)\n"), min_size);
                exit(1);
        }
        if (use_stride >= 0) {
                if (use_stride >= (int) fs->super->s_blocks_per_group) {
-                       com_err(program_name, 0,
+                       com_err(program_name, 0, "%s",
                                _("Invalid stride length"));
                        exit(1);
                }
@@ -424,29 +434,23 @@ int main (int argc, char ** argv)
        }
        if (!force && (new_size > max_size)) {
                fprintf(stderr, _("The containing partition (or device)"
-                       " is only %u (%dk) blocks.\nYou requested a new size"
-                       " of %u blocks.\n\n"), max_size,
+                       " is only %llu (%dk) blocks.\nYou requested a new size"
+                       " of %llu blocks.\n\n"), max_size,
                        fs->blocksize / 1024, new_size);
                exit(1);
        }
-       if (new_size == fs->super->s_blocks_count) {
-               fprintf(stderr, _("The filesystem is already %u blocks "
+       if (new_size == ext2fs_blocks_count(fs->super)) {
+               fprintf(stderr, _("The filesystem is already %llu blocks "
                        "long.  Nothing to do!\n\n"), new_size);
                exit(0);
        }
        if (mount_flags & EXT2_MF_MOUNTED) {
+               bigalloc_check(fs, force);
                retval = online_resize_fs(fs, mtpt, &new_size, flags);
        } else {
-               if (!force && ((fs->super->s_lastcheck < fs->super->s_mtime) ||
-                              (fs->super->s_state & EXT2_ERROR_FS) ||
-                              ((fs->super->s_state & EXT2_VALID_FS) == 0))) {
-                       fprintf(stderr,
-                               _("Please run 'e2fsck -f %s' first.\n\n"),
-                               device_name);
-                       exit(1);
-               }
+               bigalloc_check(fs, force);
                printf(_("Resizing the filesystem on "
-                        "%s to %u (%dk) blocks.\n"),
+                        "%s to %llu (%dk) blocks.\n"),
                       device_name, new_size, fs->blocksize / 1024);
                retval = resize_fs(fs, &new_size, flags,
                                   ((flags & RESIZE_PERCENT_COMPLETE) ?
@@ -460,10 +464,10 @@ int main (int argc, char ** argv)
                        _("Please run 'e2fsck -fy %s' to fix the filesystem\n"
                          "after the aborted resize operation.\n"),
                        device_name);
-               ext2fs_close(fs);
+               ext2fs_close_free(&fs);
                exit(1);
        }
-       printf(_("The filesystem on %s is now %u blocks long.\n\n"),
+       printf(_("The filesystem on %s is now %llu blocks long.\n\n"),
               device_name, new_size);
 
        if ((st_buf.st_size > new_file_size) &&