2 * tune2fs.c - Change the file system parameters on an ext2 file system
4 * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
5 * Laboratoire MASI, Institut Blaise Pascal
6 * Universite Pierre et Marie Curie (Paris VI)
8 * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o.
11 * This file may be redistributed under the terms of the GNU Public
19 * 93/10/31 - Added the -c option to change the maximal mount counts
20 * 93/12/14 - Added -l flag to list contents of superblock
21 * M.J.E. Mol (marcel@duteca.et.tudelft.nl)
22 * F.W. ten Wolde (franky@duteca.et.tudelft.nl)
23 * 93/12/29 - Added the -e option to change errors behavior
24 * 94/02/27 - Ported to use the ext2fs library
25 * 94/03/06 - Added the checks interval from Uwe Ohse (uwe@tirka.gun.de)
28 #define _XOPEN_SOURCE 600 /* for inclusion of strptime() */
44 #include <strings.h> /* for strcasecmp() */
46 #define _BSD_SOURCE /* for inclusion of strcasecmp() via <string.h> */
51 #include <sys/types.h>
55 #include "ext2fs/ext2_fs.h"
56 #include "ext2fs/ext2fs.h"
57 #include "et/com_err.h"
58 #include "uuid/uuid.h"
62 #include "blkid/blkid.h"
63 #include "quota/mkquota.h"
65 #include "../version.h"
66 #include "nls-enable.h"
68 #define QOPT_ENABLE (1)
69 #define QOPT_DISABLE (-1)
71 extern int ask_yn(const char *string, int def);
73 const char *program_name = "tune2fs";
75 char *new_label, *new_last_mounted, *new_UUID;
77 static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag;
78 static int m_flag, M_flag, Q_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag;
81 static time_t last_check_time;
82 static int print_label;
83 static int max_mount_count, mount_count, mount_flags;
84 static unsigned long interval;
85 static blk64_t reserved_blocks;
86 static double reserved_ratio;
87 static unsigned long resgid, resuid;
88 static unsigned short errors;
90 static char *features_cmd;
91 static char *mntopts_cmd;
92 static int stride, stripe_width;
93 static int stride_set, stripe_width_set;
94 static char *extended_cmd;
95 static unsigned long new_inode_size;
96 static char *ext_mount_opts;
97 static int usrquota, grpquota;
99 int journal_size, journal_flags;
100 char *journal_device;
101 static blk64_t journal_location = ~0LL;
103 static struct list_head blk_move_list;
106 struct list_head list;
112 static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");
114 #ifdef CONFIG_BUILD_FINDFS
115 void do_findfs(int argc, char **argv);
118 static void usage(void)
121 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] "
123 "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
124 "\t[-m reserved_blocks_percent] "
125 "[-o [^]mount_options[,...]] [-p mmp_update_interval]\n"
126 "\t[-r reserved_blocks_count] [-u user] [-C mount_count] "
127 "[-L volume_label]\n"
128 "\t[-M last_mounted_dir] [-O [^]feature[,...]]\n"
130 "\t[-Q quota_options]\n"
132 "\t[-E extended-option[,...]] [-T last_check_time] "
133 "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name);
137 static __u32 ok_features[3] = {
139 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
140 EXT2_FEATURE_COMPAT_DIR_INDEX,
142 EXT2_FEATURE_INCOMPAT_FILETYPE |
143 EXT3_FEATURE_INCOMPAT_EXTENTS |
144 EXT4_FEATURE_INCOMPAT_FLEX_BG |
145 EXT4_FEATURE_INCOMPAT_MMP,
147 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
148 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
149 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
150 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
151 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
153 EXT4_FEATURE_RO_COMPAT_QUOTA |
155 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
158 static __u32 clear_ok_features[3] = {
160 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
161 EXT2_FEATURE_COMPAT_RESIZE_INODE |
162 EXT2_FEATURE_COMPAT_DIR_INDEX,
164 EXT2_FEATURE_INCOMPAT_FILETYPE |
165 EXT4_FEATURE_INCOMPAT_FLEX_BG |
166 EXT4_FEATURE_INCOMPAT_MMP,
168 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
169 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
170 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
171 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
173 EXT4_FEATURE_RO_COMPAT_QUOTA |
175 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
179 * Remove an external journal from the filesystem
181 static int remove_journal_device(ext2_filsys fs)
186 journal_superblock_t *jsb;
189 int commit_remove_journal = 0;
193 commit_remove_journal = 1; /* force removal even if error */
195 uuid_unparse(fs->super->s_journal_uuid, buf);
196 journal_path = blkid_get_devname(NULL, "UUID", buf);
200 ext2fs_find_block_device(fs->super->s_journal_dev);
202 goto no_valid_journal;
205 #ifdef CONFIG_TESTIO_DEBUG
206 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
207 io_ptr = test_io_manager;
208 test_io_backing_manager = unix_io_manager;
211 io_ptr = unix_io_manager;
212 retval = ext2fs_open(journal_path, EXT2_FLAG_RW|
213 EXT2_FLAG_JOURNAL_DEV_OK, 0,
214 fs->blocksize, io_ptr, &jfs);
216 com_err(program_name, retval, "%s",
217 _("while trying to open external journal"));
218 goto no_valid_journal;
220 if (!(jfs->super->s_feature_incompat &
221 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
222 fprintf(stderr, _("%s is not a journal device.\n"),
224 goto no_valid_journal;
227 /* Get the journal superblock */
228 if ((retval = io_channel_read_blk64(jfs->io, 1, -1024, buf))) {
229 com_err(program_name, retval, "%s",
230 _("while reading journal superblock"));
231 goto no_valid_journal;
234 jsb = (journal_superblock_t *) buf;
235 if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) ||
236 (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) {
237 fputs(_("Journal superblock not found!\n"), stderr);
238 goto no_valid_journal;
241 /* Find the filesystem UUID */
242 nr_users = ntohl(jsb->s_nr_users);
243 for (i = 0; i < nr_users; i++) {
244 if (memcmp(fs->super->s_uuid, &jsb->s_users[i * 16], 16) == 0)
248 fputs(_("Filesystem's UUID not found on journal device.\n"),
250 commit_remove_journal = 1;
251 goto no_valid_journal;
254 for (i = 0; i < nr_users; i++)
255 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16);
256 jsb->s_nr_users = htonl(nr_users);
258 /* Write back the journal superblock */
259 if ((retval = io_channel_write_blk64(jfs->io, 1, -1024, buf))) {
260 com_err(program_name, retval,
261 "while writing journal superblock.");
262 goto no_valid_journal;
265 commit_remove_journal = 1;
268 if (commit_remove_journal == 0) {
269 fputs(_("Cannot locate journal device. It was NOT removed\n"
270 "Use -f option to remove missing journal device.\n"),
274 fs->super->s_journal_dev = 0;
275 uuid_clear(fs->super->s_journal_uuid);
276 ext2fs_mark_super_dirty(fs);
277 fputs(_("Journal removed\n"), stdout);
283 /* Helper function for remove_journal_inode */
284 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
285 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
286 blk64_t ref_block EXT2FS_ATTR((unused)),
287 int ref_offset EXT2FS_ATTR((unused)),
288 void *private EXT2FS_ATTR((unused)))
294 ext2fs_unmark_block_bitmap2(fs->block_map, block);
295 group = ext2fs_group_of_blk2(fs, block);
296 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
297 ext2fs_group_desc_csum_set(fs, group);
298 ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs));
303 * Remove the journal inode from the filesystem
305 static errcode_t remove_journal_inode(ext2_filsys fs)
307 struct ext2_inode inode;
309 ino_t ino = fs->super->s_journal_inum;
311 retval = ext2fs_read_inode(fs, ino, &inode);
313 com_err(program_name, retval, "%s",
314 _("while reading journal inode"));
317 if (ino == EXT2_JOURNAL_INO) {
318 retval = ext2fs_read_bitmaps(fs);
320 com_err(program_name, retval, "%s",
321 _("while reading bitmaps"));
324 retval = ext2fs_block_iterate3(fs, ino,
325 BLOCK_FLAG_READ_ONLY, NULL,
326 release_blocks_proc, NULL);
328 com_err(program_name, retval, "%s",
329 _("while clearing journal inode"));
332 memset(&inode, 0, sizeof(inode));
333 ext2fs_mark_bb_dirty(fs);
334 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
336 inode.i_flags &= ~EXT2_IMMUTABLE_FL;
337 retval = ext2fs_write_inode(fs, ino, &inode);
339 com_err(program_name, retval, "%s",
340 _("while writing journal inode"));
343 fs->super->s_journal_inum = 0;
344 ext2fs_mark_super_dirty(fs);
350 * Update the default mount options
352 static int update_mntopts(ext2_filsys fs, char *mntopts)
354 struct ext2_super_block *sb = fs->super;
356 if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) {
357 fprintf(stderr, _("Invalid mount option set: %s\n"),
361 ext2fs_mark_super_dirty(fs);
366 static int check_fsck_needed(ext2_filsys fs)
368 if (fs->super->s_state & EXT2_VALID_FS)
370 printf("\n%s\n", _(please_fsck));
371 if (mount_flags & EXT2_MF_READONLY)
372 printf("%s", _("(and reboot afterwards!)\n"));
376 static void request_fsck_afterwards(ext2_filsys fs)
378 static int requested = 0;
382 fs->super->s_state &= ~EXT2_VALID_FS;
383 printf("\n%s\n", _(please_fsck));
384 if (mount_flags & EXT2_MF_READONLY)
385 printf("%s", _("(and reboot afterwards!)\n"));
389 * Update the feature set as provided by the user.
391 static int update_feature_set(ext2_filsys fs, char *features)
393 struct ext2_super_block *sb = fs->super;
394 struct ext2_group_desc *gd;
395 __u32 old_features[3];
398 unsigned int mask_err;
400 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
401 ((&sb->s_feature_compat)[(type)] & (mask)))
402 #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
403 !((&sb->s_feature_compat)[(type)] & (mask)))
404 #define FEATURE_CHANGED(type, mask) ((mask) & \
405 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
407 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat;
408 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat;
409 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat;
411 if (e2p_edit_feature2(features, &sb->s_feature_compat,
412 ok_features, clear_ok_features,
413 &type_err, &mask_err)) {
416 _("Invalid filesystem option set: %s\n"),
418 else if (type_err & E2P_FEATURE_NEGATE_FLAG)
419 fprintf(stderr, _("Clearing filesystem feature '%s' "
421 e2p_feature2string(type_err &
422 E2P_FEATURE_TYPE_MASK,
425 fprintf(stderr, _("Setting filesystem feature '%s' "
427 e2p_feature2string(type_err, mask_err));
431 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
432 if ((mount_flags & EXT2_MF_MOUNTED) &&
433 !(mount_flags & EXT2_MF_READONLY)) {
434 fputs(_("The has_journal feature may only be "
435 "cleared when the filesystem is\n"
436 "unmounted or mounted "
437 "read-only.\n"), stderr);
440 if (sb->s_feature_incompat &
441 EXT3_FEATURE_INCOMPAT_RECOVER) {
442 fputs(_("The needs_recovery flag is set. "
443 "Please run e2fsck before clearing\n"
444 "the has_journal flag.\n"), stderr);
447 if (sb->s_journal_inum) {
448 if (remove_journal_inode(fs))
451 if (sb->s_journal_dev) {
452 if (remove_journal_device(fs))
457 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
458 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
459 if (sb->s_feature_incompat &
460 EXT2_FEATURE_INCOMPAT_META_BG) {
461 fputs(_("Setting filesystem feature 'sparse_super' "
462 "not supported\nfor filesystems with "
463 "the meta_bg feature enabled.\n"),
469 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
472 if ((mount_flags & EXT2_MF_MOUNTED) ||
473 (mount_flags & EXT2_MF_READONLY)) {
474 fputs(_("The multiple mount protection feature can't\n"
475 "be set if the filesystem is mounted or\n"
476 "read-only.\n"), stderr);
480 error = ext2fs_mmp_init(fs);
482 fputs(_("\nError while enabling multiple mount "
483 "protection feature."), stderr);
488 * We want to update group desc with the new free blocks count
490 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
492 printf(_("Multiple mount protection has been enabled "
493 "with update interval %ds.\n"),
494 sb->s_mmp_update_interval);
497 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
500 if (mount_flags & EXT2_MF_READONLY) {
501 fputs(_("The multiple mount protection feature cannot\n"
502 "be disabled if the filesystem is readonly.\n"),
507 error = ext2fs_read_bitmaps(fs);
509 fputs(_("Error while reading bitmaps\n"), stderr);
513 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL);
515 struct mmp_struct *mmp_cmp = fs->mmp_cmp;
517 if (error == EXT2_ET_MMP_MAGIC_INVALID)
518 printf(_("Magic number in MMP block does not "
519 "match. expected: %x, actual: %x\n"),
520 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic);
522 com_err(program_name, error, "%s",
523 _("while reading MMP block."));
527 /* We need to force out the group descriptors as well */
528 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
529 ext2fs_block_alloc_stats2(fs, sb->s_mmp_block, -1);
532 sb->s_mmp_update_interval = 0;
535 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
537 * If adding a journal flag, let the create journal
538 * code below handle setting the flag and creating the
539 * journal. We supply a default size if necessary.
543 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
546 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) {
547 if (!sb->s_def_hash_version)
548 sb->s_def_hash_version = EXT2_HASH_HALF_MD4;
549 if (uuid_is_null((unsigned char *) sb->s_hash_seed))
550 uuid_generate((unsigned char *) sb->s_hash_seed);
553 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
554 if (ext2fs_check_desc(fs)) {
555 fputs(_("Clearing the flex_bg flag would "
556 "cause the the filesystem to be\n"
557 "inconsistent.\n"), stderr);
562 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
563 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
564 if ((mount_flags & EXT2_MF_MOUNTED) &&
565 !(mount_flags & EXT2_MF_READONLY)) {
566 fputs(_("The huge_file feature may only be "
567 "cleared when the filesystem is\n"
568 "unmounted or mounted "
569 "read-only.\n"), stderr);
574 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
575 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
576 for (i = 0; i < fs->group_desc_count; i++) {
577 gd = ext2fs_group_desc(fs, fs->group_desc, i);
578 gd->bg_itable_unused = 0;
579 gd->bg_flags = EXT2_BG_INODE_ZEROED;
580 ext2fs_group_desc_csum_set(fs, i);
582 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
585 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
586 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
587 for (i = 0; i < fs->group_desc_count; i++) {
588 gd = ext2fs_group_desc(fs, fs->group_desc, i);
589 if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) {
591 * XXX what we really should do is zap
592 * uninitialized inode tables instead.
594 request_fsck_afterwards(fs);
597 gd->bg_itable_unused = 0;
601 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
604 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
605 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
607 * Set the Q_flag here and handle the quota options in the code
612 /* Enable both user quota and group quota by default */
613 usrquota = QOPT_ENABLE;
614 grpquota = QOPT_ENABLE;
616 sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
619 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
620 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
622 * Set the Q_flag here and handle the quota options in the code
626 fputs(_("\nWarning: '^quota' option overrides '-Q'"
627 "arguments.\n"), stderr);
629 /* Disable both user quota and group quota by default */
630 usrquota = QOPT_DISABLE;
631 grpquota = QOPT_DISABLE;
634 if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
635 (sb->s_feature_compat || sb->s_feature_ro_compat ||
636 sb->s_feature_incompat))
637 ext2fs_update_dynamic_rev(fs);
639 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
640 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
641 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
642 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
643 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
644 EXT2_FEATURE_INCOMPAT_FILETYPE) ||
645 FEATURE_CHANGED(E2P_FEATURE_COMPAT,
646 EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
647 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
648 EXT2_FEATURE_RO_COMPAT_LARGE_FILE))
649 request_fsck_afterwards(fs);
651 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) ||
652 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) ||
653 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat))
654 ext2fs_mark_super_dirty(fs);
660 * Add a journal to the filesystem.
662 static int add_journal(ext2_filsys fs)
664 unsigned long journal_blocks;
669 if (fs->super->s_feature_compat &
670 EXT3_FEATURE_COMPAT_HAS_JOURNAL) {
671 fputs(_("The filesystem already has a journal.\n"), stderr);
674 if (journal_device) {
675 check_plausibility(journal_device);
676 check_mount(journal_device, 0, _("journal"));
677 #ifdef CONFIG_TESTIO_DEBUG
678 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
679 io_ptr = test_io_manager;
680 test_io_backing_manager = unix_io_manager;
683 io_ptr = unix_io_manager;
684 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
685 EXT2_FLAG_JOURNAL_DEV_OK, 0,
686 fs->blocksize, io_ptr, &jfs);
688 com_err(program_name, retval,
689 _("\n\twhile trying to open journal on %s\n"),
693 printf(_("Creating journal on device %s: "),
697 retval = ext2fs_add_journal_device(fs, jfs);
700 com_err(program_name, retval,
701 _("while adding filesystem to journal on %s"),
705 fputs(_("done\n"), stdout);
706 } else if (journal_size) {
707 fputs(_("Creating journal inode: "), stdout);
709 journal_blocks = figure_journal_size(journal_size, fs);
711 if (journal_location_string)
713 parse_num_blocks2(journal_location_string,
714 fs->super->s_log_block_size);
715 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
719 fprintf(stderr, "\n");
720 com_err(program_name, retval, "%s",
721 _("\n\twhile trying to create journal file"));
724 fputs(_("done\n"), stdout);
726 * If the filesystem wasn't mounted, we need to force
727 * the block group descriptors out.
729 if ((mount_flags & EXT2_MF_MOUNTED) == 0)
730 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
732 print_check_message(fs->super->s_max_mnt_count,
733 fs->super->s_checkinterval);
737 free(journal_device);
741 static void handle_quota_options(ext2_filsys fs)
746 if (!usrquota && !grpquota)
750 quota_init_context(&qctx, fs, -1);
752 if (usrquota == QOPT_ENABLE || grpquota == QOPT_ENABLE)
753 quota_compute_usage(qctx);
755 if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) {
756 if ((qf_ino = quota_file_exists(fs, USRQUOTA,
758 quota_update_limits(qctx, qf_ino, USRQUOTA);
759 quota_write_inode(qctx, USRQUOTA);
760 } else if (usrquota == QOPT_DISABLE) {
761 quota_remove_inode(fs, USRQUOTA);
764 if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) {
765 if ((qf_ino = quota_file_exists(fs, GRPQUOTA,
767 quota_update_limits(qctx, qf_ino, GRPQUOTA);
768 quota_write_inode(qctx, GRPQUOTA);
769 } else if (grpquota == QOPT_DISABLE) {
770 quota_remove_inode(fs, GRPQUOTA);
773 quota_release_context(&qctx);
775 if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) {
776 fprintf(stderr, "%s", _("\nWarning: the quota feature is still "
777 "under development\n"
778 "See https://ext4.wiki.kernel.org/"
779 "index.php/Quota for more information\n\n"));
780 fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA;
781 ext2fs_mark_super_dirty(fs);
782 } else if (!fs->super->s_usr_quota_inum &&
783 !fs->super->s_grp_quota_inum) {
784 fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
785 ext2fs_mark_super_dirty(fs);
792 static void parse_quota_opts(const char *opts)
794 char *buf, *token, *next, *p;
800 fputs(_("Couldn't allocate memory to parse quota "
801 "options!\n"), stderr);
805 for (token = buf; token && *token; token = next) {
806 p = strchr(token, ',');
813 if (strcmp(token, "usrquota") == 0) {
814 usrquota = QOPT_ENABLE;
815 } else if (strcmp(token, "^usrquota") == 0) {
816 usrquota = QOPT_DISABLE;
817 } else if (strcmp(token, "grpquota") == 0) {
818 grpquota = QOPT_ENABLE;
819 } else if (strcmp(token, "^grpquota") == 0) {
820 grpquota = QOPT_DISABLE;
822 fputs(_("\nBad quota options specified.\n\n"
823 "Following valid quota options are available "
824 "(pass by separating with comma):\n"
836 static void parse_e2label_options(int argc, char ** argv)
838 if ((argc < 2) || (argc > 3)) {
839 fputs(_("Usage: e2label device [newlabel]\n"), stderr);
842 io_options = strchr(argv[1], '?');
845 device_name = blkid_get_devname(NULL, argv[1], NULL);
847 com_err("e2label", 0, _("Unable to resolve '%s'"),
851 open_flag = EXT2_FLAG_JOURNAL_DEV_OK;
853 open_flag |= EXT2_FLAG_RW;
860 static time_t parse_time(char *str)
864 if (strcmp(str, "now") == 0) {
867 memset(&ts, 0, sizeof(ts));
869 strptime(str, "%Y%m%d%H%M%S", &ts);
871 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
872 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
875 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
876 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
877 ts.tm_min > 59 || ts.tm_sec > 61)
880 if (ts.tm_mday == 0) {
881 com_err(program_name, 0,
882 _("Couldn't parse date/time specifier: %s"),
887 return (mktime(&ts));
890 static void parse_tune2fs_options(int argc, char **argv)
896 char optstring[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:";
899 strcat(optstring, "Q:");
903 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
904 while ((c = getopt(argc, argv, optstring)) != EOF)
907 max_mount_count = strtol(optarg, &tmp, 0);
908 if (*tmp || max_mount_count > 16000) {
909 com_err(program_name, 0,
910 _("bad mounts count - %s"),
914 if (max_mount_count == 0)
915 max_mount_count = -1;
917 open_flag = EXT2_FLAG_RW;
920 mount_count = strtoul(optarg, &tmp, 0);
921 if (*tmp || mount_count > 16000) {
922 com_err(program_name, 0,
923 _("bad mounts count - %s"),
928 open_flag = EXT2_FLAG_RW;
931 if (strcmp(optarg, "continue") == 0)
932 errors = EXT2_ERRORS_CONTINUE;
933 else if (strcmp(optarg, "remount-ro") == 0)
934 errors = EXT2_ERRORS_RO;
935 else if (strcmp(optarg, "panic") == 0)
936 errors = EXT2_ERRORS_PANIC;
938 com_err(program_name, 0,
939 _("bad error behavior - %s"),
944 open_flag = EXT2_FLAG_RW;
947 extended_cmd = optarg;
948 open_flag |= EXT2_FLAG_RW;
950 case 'f': /* Force */
954 resgid = strtoul(optarg, &tmp, 0);
956 gr = getgrnam(optarg);
965 com_err(program_name, 0,
966 _("bad gid/group name - %s"),
971 open_flag = EXT2_FLAG_RW;
974 interval = strtoul(optarg, &tmp, 0);
987 case 'M': /* months! */
988 interval *= 86400 * 30;
992 case 'W': /* weeks */
993 interval *= 86400 * 7;
998 com_err(program_name, 0,
999 _("bad interval - %s"), optarg);
1003 open_flag = EXT2_FLAG_RW;
1008 open_flag = EXT2_FLAG_RW;
1011 parse_journal_opts(optarg);
1012 open_flag = EXT2_FLAG_RW;
1020 open_flag |= EXT2_FLAG_RW |
1021 EXT2_FLAG_JOURNAL_DEV_OK;
1024 reserved_ratio = strtod(optarg, &tmp);
1025 if (*tmp || reserved_ratio > 50 ||
1026 reserved_ratio < 0) {
1027 com_err(program_name, 0,
1028 _("bad reserved block ratio - %s"),
1033 open_flag = EXT2_FLAG_RW;
1036 new_last_mounted = optarg;
1038 open_flag = EXT2_FLAG_RW;
1042 com_err(program_name, 0, "%s",
1043 _("-o may only be specified once"));
1046 mntopts_cmd = optarg;
1047 open_flag = EXT2_FLAG_RW;
1051 com_err(program_name, 0, "%s",
1052 _("-O may only be specified once"));
1055 features_cmd = optarg;
1056 open_flag = EXT2_FLAG_RW;
1061 parse_quota_opts(optarg);
1062 open_flag = EXT2_FLAG_RW;
1066 reserved_blocks = strtoul(optarg, &tmp, 0);
1068 com_err(program_name, 0,
1069 _("bad reserved blocks count - %s"),
1074 open_flag = EXT2_FLAG_RW;
1076 case 's': /* Deprecated */
1077 s_flag = atoi(optarg);
1078 open_flag = EXT2_FLAG_RW;
1082 last_check_time = parse_time(optarg);
1083 open_flag = EXT2_FLAG_RW;
1086 resuid = strtoul(optarg, &tmp, 0);
1088 pw = getpwnam(optarg);
1092 resuid = pw->pw_uid;
1097 com_err(program_name, 0,
1098 _("bad uid/user name - %s"),
1103 open_flag = EXT2_FLAG_RW;
1108 open_flag = EXT2_FLAG_RW |
1109 EXT2_FLAG_JOURNAL_DEV_OK;
1112 new_inode_size = strtoul(optarg, &tmp, 0);
1114 com_err(program_name, 0,
1115 _("bad inode size - %s"),
1119 if (!((new_inode_size &
1120 (new_inode_size - 1)) == 0)) {
1121 com_err(program_name, 0,
1122 _("Inode size must be a "
1123 "power of two- %s"),
1127 open_flag = EXT2_FLAG_RW;
1133 if (optind < argc - 1 || optind == argc)
1135 if (!open_flag && !l_flag)
1137 io_options = strchr(argv[optind], '?');
1140 device_name = blkid_get_devname(NULL, argv[optind], NULL);
1142 com_err(program_name, 0, _("Unable to resolve '%s'"),
1148 #ifdef CONFIG_BUILD_FINDFS
1149 void do_findfs(int argc, char **argv)
1154 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) {
1155 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
1158 dev = blkid_get_devname(NULL, argv[1], NULL);
1160 com_err("findfs", 0, _("Unable to resolve '%s'"),
1169 static int parse_extended_opts(ext2_filsys fs, const char *opts)
1171 char *buf, *token, *next, *p, *arg;
1176 buf = malloc(len+1);
1178 fprintf(stderr, "%s",
1179 _("Couldn't allocate memory to parse options!\n"));
1183 for (token = buf; token && *token; token = next) {
1184 p = strchr(token, ',');
1190 arg = strchr(token, '=');
1195 if (strcmp(token, "clear-mmp") == 0 ||
1196 strcmp(token, "clear_mmp") == 0) {
1198 } else if (strcmp(token, "mmp_update_interval") == 0) {
1204 intv = strtoul(arg, &p, 0);
1207 _("Invalid mmp_update_interval: %s\n"),
1213 intv = EXT4_MMP_UPDATE_INTERVAL;
1214 } else if (intv > EXT4_MMP_MAX_UPDATE_INTERVAL) {
1216 _("mmp_update_interval too big: %lu\n"),
1221 printf(P_("Setting multiple mount protection update "
1222 "interval to %lu second\n",
1223 "Setting multiple mount protection update "
1224 "interval to %lu seconds\n", intv),
1226 fs->super->s_mmp_update_interval = intv;
1227 ext2fs_mark_super_dirty(fs);
1228 } else if (!strcmp(token, "test_fs")) {
1229 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1230 printf("Setting test filesystem flag\n");
1231 ext2fs_mark_super_dirty(fs);
1232 } else if (!strcmp(token, "^test_fs")) {
1233 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
1234 printf("Clearing test filesystem flag\n");
1235 ext2fs_mark_super_dirty(fs);
1236 } else if (strcmp(token, "stride") == 0) {
1241 stride = strtoul(arg, &p, 0);
1244 _("Invalid RAID stride: %s\n"),
1250 } else if (strcmp(token, "stripe-width") == 0 ||
1251 strcmp(token, "stripe_width") == 0) {
1256 stripe_width = strtoul(arg, &p, 0);
1259 _("Invalid RAID stripe-width: %s\n"),
1264 stripe_width_set = 1;
1265 } else if (strcmp(token, "hash_alg") == 0 ||
1266 strcmp(token, "hash-alg") == 0) {
1271 hash_alg = e2p_string2hash(arg);
1274 _("Invalid hash algorithm: %s\n"),
1279 fs->super->s_def_hash_version = hash_alg;
1280 printf(_("Setting default hash algorithm "
1283 ext2fs_mark_super_dirty(fs);
1284 } else if (!strcmp(token, "mount_opts")) {
1289 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) {
1291 "Extended mount options too long\n");
1294 ext_mount_opts = strdup(arg);
1299 fprintf(stderr, "%s", _("\nBad options specified.\n\n"
1300 "Extended options are separated by commas, "
1301 "and may take an argument which\n"
1302 "\tis set off by an equals ('=') sign.\n\n"
1303 "Valid extended options are:\n"
1305 "\thash_alg=<hash algorithm>\n"
1306 "\tmount_opts=<extended default mount options>\n"
1307 "\tstride=<RAID per-disk chunk size in blocks>\n"
1308 "\tstripe_width=<RAID stride*data disks in blocks>\n"
1320 * Fill in the block bitmap bmap with the information regarding the
1321 * blocks to be moved
1323 static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp,
1324 ext2fs_block_bitmap bmap)
1328 ext2_badblocks_list bb_list = 0;
1329 blk64_t j, needed_blocks = 0;
1330 blk64_t start_blk, end_blk;
1332 retval = ext2fs_read_bb_inode(fs, &bb_list);
1336 for (i = 0; i < fs->group_desc_count; i++) {
1337 start_blk = ext2fs_inode_table_loc(fs, i) +
1338 fs->inode_blocks_per_group;
1340 end_blk = ext2fs_inode_table_loc(fs, i) +
1341 new_ino_blks_per_grp;
1343 for (j = start_blk; j < end_blk; j++) {
1344 if (ext2fs_test_block_bitmap2(fs->block_map, j)) {
1346 * IF the block is a bad block we fail
1348 if (ext2fs_badblocks_list_test(bb_list, j)) {
1349 ext2fs_badblocks_list_free(bb_list);
1353 ext2fs_mark_block_bitmap2(bmap, j);
1356 * We are going to use this block for
1357 * inode table. So mark them used.
1359 ext2fs_mark_block_bitmap2(fs->block_map, j);
1362 needed_blocks += end_blk - start_blk;
1365 ext2fs_badblocks_list_free(bb_list);
1366 if (needed_blocks > ext2fs_free_blocks_count(fs->super))
1372 static int ext2fs_is_meta_block(ext2_filsys fs, blk64_t blk)
1375 group = ext2fs_group_of_blk2(fs, blk);
1376 if (ext2fs_block_bitmap_loc(fs, group) == blk)
1378 if (ext2fs_inode_bitmap_loc(fs, group) == blk)
1383 static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk64_t blk)
1385 blk64_t start_blk, end_blk;
1386 start_blk = fs->super->s_first_data_block +
1387 EXT2_BLOCKS_PER_GROUP(fs->super) * group;
1389 * We cannot get new block beyond end_blk for for the last block group
1390 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group
1392 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super);
1393 if (blk >= start_blk && blk <= end_blk)
1398 static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
1405 blk64_t blk, new_blk, goal;
1406 struct blk_move *bmv;
1408 retval = ext2fs_get_mem(fs->blocksize, &buf);
1412 for (new_blk = blk = fs->super->s_first_data_block;
1413 blk < ext2fs_blocks_count(fs->super); blk++) {
1414 if (!ext2fs_test_block_bitmap2(bmap, blk))
1417 if (ext2fs_is_meta_block(fs, blk)) {
1419 * If the block is mapping a fs meta data block
1420 * like group desc/block bitmap/inode bitmap. We
1421 * should find a block in the same group and fix
1422 * the respective fs metadata pointers. Otherwise
1425 group = ext2fs_group_of_blk2(fs, blk);
1426 goal = ext2fs_group_first_block2(fs, group);
1432 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk);
1436 /* new fs meta data block should be in the same group */
1437 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) {
1442 /* Mark this block as allocated */
1443 ext2fs_mark_block_bitmap2(fs->block_map, new_blk);
1445 /* Add it to block move list */
1446 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
1451 bmv->new_loc = new_blk;
1453 list_add(&(bmv->list), &blk_move_list);
1455 retval = io_channel_read_blk64(fs->io, blk, 1, buf);
1459 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf);
1465 ext2fs_free_mem(&buf);
1469 static blk64_t translate_block(blk64_t blk)
1471 struct list_head *entry;
1472 struct blk_move *bmv;
1474 list_for_each(entry, &blk_move_list) {
1475 bmv = list_entry(entry, struct blk_move, list);
1476 if (bmv->old_loc == blk)
1477 return bmv->new_loc;
1483 static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
1485 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1486 blk64_t ref_block EXT2FS_ATTR((unused)),
1487 int ref_offset EXT2FS_ATTR((unused)),
1492 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data;
1494 if (!ext2fs_test_block_bitmap2(bmap, *block_nr))
1496 new_blk = translate_block(*block_nr);
1498 *block_nr = new_blk;
1500 * This will force the ext2fs_write_inode in the iterator
1502 ret |= BLOCK_CHANGED;
1508 static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
1510 errcode_t retval = 0;
1513 char *block_buf = 0;
1514 struct ext2_inode inode;
1515 ext2_inode_scan scan = NULL;
1517 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf);
1521 retval = ext2fs_open_inode_scan(fs, 0, &scan);
1526 retval = ext2fs_get_next_inode(scan, &ino, &inode);
1533 if (inode.i_links_count == 0)
1534 continue; /* inode not in use */
1537 * If we end up modifying the journal inode
1538 * the sb->s_jnl_blocks will differ. But a
1539 * subsequent e2fsck fixes that.
1540 * Do we need to fix this ??
1543 if (ext2fs_file_acl_block(fs, &inode) &&
1544 ext2fs_test_block_bitmap2(bmap,
1545 ext2fs_file_acl_block(fs, &inode))) {
1546 blk = translate_block(ext2fs_file_acl_block(fs,
1551 ext2fs_file_acl_block_set(fs, &inode, blk);
1554 * Write the inode to disk so that inode table
1557 retval = ext2fs_write_inode(fs, ino, &inode);
1562 if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
1565 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf,
1566 process_block, bmap);
1573 ext2fs_free_mem(&block_buf);
1579 * We need to scan for inode and block bitmaps that may need to be
1580 * moved. This can take place if the filesystem was formatted for
1581 * RAID arrays using the mke2fs's extended option "stride".
1583 static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
1586 blk64_t blk, new_blk;
1588 for (i = 0; i < fs->group_desc_count; i++) {
1589 blk = ext2fs_block_bitmap_loc(fs, i);
1590 if (ext2fs_test_block_bitmap2(bmap, blk)) {
1591 new_blk = translate_block(blk);
1594 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
1597 blk = ext2fs_inode_bitmap_loc(fs, i);
1598 if (ext2fs_test_block_bitmap2(bmap, blk)) {
1599 new_blk = translate_block(blk);
1602 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
1608 static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
1613 int new_ino_blks_per_grp;
1615 char *old_itable = NULL, *new_itable = NULL;
1616 char *tmp_old_itable = NULL, *tmp_new_itable = NULL;
1617 unsigned long old_ino_size;
1618 int old_itable_size, new_itable_size;
1620 old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
1621 old_ino_size = EXT2_INODE_SIZE(fs->super);
1623 new_ino_blks_per_grp = ext2fs_div_ceil(
1624 EXT2_INODES_PER_GROUP(fs->super) *
1628 new_itable_size = new_ino_blks_per_grp * fs->blocksize;
1630 retval = ext2fs_get_mem(old_itable_size, &old_itable);
1634 retval = ext2fs_get_mem(new_itable_size, &new_itable);
1638 tmp_old_itable = old_itable;
1639 tmp_new_itable = new_itable;
1641 for (i = 0; i < fs->group_desc_count; i++) {
1642 blk = ext2fs_inode_table_loc(fs, i);
1643 retval = io_channel_read_blk64(fs->io, blk,
1644 fs->inode_blocks_per_group, old_itable);
1648 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) {
1649 memcpy(new_itable, old_itable, old_ino_size);
1651 memset(new_itable+old_ino_size, 0,
1652 new_ino_size - old_ino_size);
1654 new_itable += new_ino_size;
1655 old_itable += old_ino_size;
1658 /* reset the pointer */
1659 old_itable = tmp_old_itable;
1660 new_itable = tmp_new_itable;
1662 retval = io_channel_write_blk64(fs->io, blk,
1663 new_ino_blks_per_grp, new_itable);
1668 /* Update the meta data */
1669 fs->inode_blocks_per_group = new_ino_blks_per_grp;
1670 fs->super->s_inode_size = new_ino_size;
1674 ext2fs_free_mem(&old_itable);
1677 ext2fs_free_mem(&new_itable);
1682 static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
1686 unsigned int group = 0;
1687 unsigned int count = 0;
1692 * First calculate the block statistics
1694 for (blk = fs->super->s_first_data_block;
1695 blk < ext2fs_blocks_count(fs->super); blk++) {
1696 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) {
1701 if ((count == fs->super->s_blocks_per_group) ||
1702 (blk == ext2fs_blocks_count(fs->super)-1)) {
1703 ext2fs_bg_free_blocks_count_set(fs, group++,
1709 total_free = EXT2FS_C2B(fs, total_free);
1710 ext2fs_free_blocks_count_set(fs->super, total_free);
1713 * Next, calculate the inode statistics
1720 /* Protect loop from wrap-around if s_inodes_count maxed */
1721 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
1722 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) {
1727 if ((count == fs->super->s_inodes_per_group) ||
1728 (ino == fs->super->s_inodes_count)) {
1729 ext2fs_bg_free_inodes_count_set(fs, group++,
1735 fs->super->s_free_inodes_count = total_free;
1736 ext2fs_mark_super_dirty(fs);
1740 #define list_for_each_safe(pos, pnext, head) \
1741 for (pos = (head)->next, pnext = pos->next; pos != (head); \
1742 pos = pnext, pnext = pos->next)
1744 static void free_blk_move_list(void)
1746 struct list_head *entry, *tmp;
1747 struct blk_move *bmv;
1749 list_for_each_safe(entry, tmp, &blk_move_list) {
1750 bmv = list_entry(entry, struct blk_move, list);
1752 ext2fs_free_mem(&bmv);
1757 static int resize_inode(ext2_filsys fs, unsigned long new_size)
1760 int new_ino_blks_per_grp;
1761 ext2fs_block_bitmap bmap;
1763 retval = ext2fs_read_inode_bitmap(fs);
1765 fputs(_("Failed to read inode bitmap\n"), stderr);
1768 retval = ext2fs_read_block_bitmap(fs);
1770 fputs(_("Failed to read block bitmap\n"), stderr);
1773 INIT_LIST_HEAD(&blk_move_list);
1776 new_ino_blks_per_grp = ext2fs_div_ceil(
1777 EXT2_INODES_PER_GROUP(fs->super)*
1781 /* We may change the file system.
1782 * Mark the file system as invalid so that
1783 * the user is prompted to run fsck.
1785 fs->super->s_state &= ~EXT2_VALID_FS;
1787 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
1790 fputs(_("Failed to allocate block bitmap when "
1791 "increasing inode size\n"), stderr);
1794 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap);
1796 fputs(_("Not enough space to increase inode size \n"), stderr);
1799 retval = move_block(fs, bmap);
1801 fputs(_("Failed to relocate blocks during inode resize \n"),
1805 retval = inode_scan_and_fix(fs, bmap);
1809 retval = group_desc_scan_and_fix(fs, bmap);
1813 retval = expand_inode_table(fs, new_size);
1817 ext2fs_calculate_summary_stats(fs);
1819 fs->super->s_state |= EXT2_VALID_FS;
1820 /* mark super block and block bitmap as dirty */
1821 ext2fs_mark_super_dirty(fs);
1822 ext2fs_mark_bb_dirty(fs);
1825 free_blk_move_list();
1826 ext2fs_free_block_bitmap(bmap);
1831 free_blk_move_list();
1832 ext2fs_free_block_bitmap(bmap);
1833 fputs(_("Error in resizing the inode size.\n"
1834 "Run e2undo to undo the "
1835 "file system changes. \n"), stderr);
1840 static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
1842 errcode_t retval = 0;
1843 const char *tdb_dir;
1845 char *dev_name, *tmp_name;
1849 * Configuration via a conf file would be
1852 profile_get_string(profile, "scratch_files",
1856 tmp_name = strdup(name);
1859 com_err(program_name, ENOMEM, "%s",
1860 _("Couldn't allocate memory for tdb filename\n"));
1863 dev_name = basename(tmp_name);
1865 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1867 tdb_dir = "/var/lib/e2fsprogs";
1869 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1870 access(tdb_dir, W_OK))
1873 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
1876 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
1878 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
1880 com_err(program_name, retval,
1881 _("while trying to delete %s"), tdb_file);
1886 set_undo_io_backing_manager(*io_ptr);
1887 *io_ptr = undo_io_manager;
1888 set_undo_io_backup_file(tdb_file);
1889 printf(_("To undo the tune2fs operation please run "
1890 "the command\n e2undo %s %s\n\n"),
1897 int main(int argc, char **argv)
1901 struct ext2_super_block *sb;
1902 io_manager io_ptr, io_ptr_orig = NULL;
1906 setlocale(LC_MESSAGES, "");
1907 setlocale(LC_CTYPE, "");
1908 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1909 textdomain(NLS_CAT_NAME);
1910 set_com_err_gettext(gettext);
1913 program_name = *argv;
1914 add_error_table(&et_ext2_error_table);
1916 #ifdef CONFIG_BUILD_FINDFS
1917 if (strcmp(get_progname(argv[0]), "findfs") == 0)
1918 do_findfs(argc, argv);
1920 if (strcmp(get_progname(argv[0]), "e2label") == 0)
1921 parse_e2label_options(argc, argv);
1923 parse_tune2fs_options(argc, argv);
1925 #ifdef CONFIG_TESTIO_DEBUG
1926 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) {
1927 io_ptr = test_io_manager;
1928 test_io_backing_manager = unix_io_manager;
1931 io_ptr = unix_io_manager;
1934 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag)
1935 open_flag |= EXT2_FLAG_SKIP_MMP;
1937 open_flag |= EXT2_FLAG_64BITS;
1939 /* keep the filesystem struct around to dump MMP data */
1940 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR;
1942 retval = ext2fs_open2(device_name, io_options, open_flag,
1945 com_err(program_name, retval,
1946 _("while trying to open %s"),
1948 if (retval == EXT2_ET_MMP_FSCK_ON ||
1949 retval == EXT2_ET_MMP_UNKNOWN_SEQ)
1950 dump_mmp_msg(fs->mmp_buf,
1951 _("If you are sure the filesystem "
1952 "is not in use on any node, run:\n"
1953 "'tune2fs -f -E clear_mmp {device}'\n"));
1954 else if (retval == EXT2_ET_MMP_FAILED)
1955 dump_mmp_msg(fs->mmp_buf, NULL);
1956 else if (retval == EXT2_ET_MMP_MAGIC_INVALID)
1958 _("MMP block magic is bad. Try to fix it by "
1959 "running:\n'e2fsck -f %s'\n"), device_name);
1960 else if (retval != EXT2_ET_MMP_FAILED)
1961 fprintf(stderr, "%s",
1962 _("Couldn't find valid filesystem superblock.\n"));
1967 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
1969 if (I_flag && !io_ptr_orig) {
1971 * Check the inode size is right so we can issue an
1972 * error message and bail before setting up the tdb
1975 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) {
1976 fprintf(stderr, _("The inode size is already %lu\n"),
1981 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
1982 fprintf(stderr, "%s",
1983 _("Shrinking inode size is not supported\n"));
1987 if (new_inode_size > fs->blocksize) {
1988 fprintf(stderr, _("Invalid inode size %lu (max %d)\n"),
1989 new_inode_size, fs->blocksize);
1995 * If inode resize is requested use the
1998 io_ptr_orig = io_ptr;
1999 retval = tune2fs_setup_tdb(device_name, &io_ptr);
2004 if (io_ptr != io_ptr_orig) {
2011 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2014 /* For e2label emulation */
2015 printf("%.*s\n", (int) sizeof(sb->s_volume_name),
2017 remove_error_table(&et_ext2_error_table);
2021 retval = ext2fs_check_if_mounted(device_name, &mount_flags);
2023 com_err("ext2fs_check_if_mount", retval,
2024 _("while determining whether %s is mounted."),
2029 /* Normally we only need to write out the superblock */
2030 fs->flags |= EXT2_FLAG_SUPER_ONLY;
2033 sb->s_max_mnt_count = max_mount_count;
2034 ext2fs_mark_super_dirty(fs);
2035 printf(_("Setting maximal mount count to %d\n"),
2039 sb->s_mnt_count = mount_count;
2040 ext2fs_mark_super_dirty(fs);
2041 printf(_("Setting current mount count to %d\n"), mount_count);
2044 sb->s_errors = errors;
2045 ext2fs_mark_super_dirty(fs);
2046 printf(_("Setting error behavior to %d\n"), errors);
2049 sb->s_def_resgid = resgid;
2050 ext2fs_mark_super_dirty(fs);
2051 printf(_("Setting reserved blocks gid to %lu\n"), resgid);
2054 if (interval >= (1ULL << 32)) {
2055 com_err(program_name, 0,
2056 _("interval between checks is too big (%lu)"),
2061 sb->s_checkinterval = interval;
2062 ext2fs_mark_super_dirty(fs);
2063 printf(_("Setting interval between checks to %lu seconds\n"),
2067 ext2fs_r_blocks_count_set(sb, reserved_ratio *
2068 ext2fs_blocks_count(sb) / 100.0);
2069 ext2fs_mark_super_dirty(fs);
2070 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"),
2071 reserved_ratio, ext2fs_r_blocks_count(sb));
2074 if (reserved_blocks > ext2fs_blocks_count(sb)/2) {
2075 com_err(program_name, 0,
2076 _("reserved blocks count is too big (%llu)"),
2081 ext2fs_r_blocks_count_set(sb, reserved_blocks);
2082 ext2fs_mark_super_dirty(fs);
2083 printf(_("Setting reserved blocks count to %llu\n"),
2087 if (sb->s_feature_ro_compat &
2088 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) {
2089 fputs(_("\nThe filesystem already has sparse "
2090 "superblocks.\n"), stderr);
2091 } else if (sb->s_feature_incompat &
2092 EXT2_FEATURE_INCOMPAT_META_BG) {
2093 fputs(_("\nSetting the sparse superblock flag not "
2094 "supported\nfor filesystems with "
2095 "the meta_bg feature enabled.\n"),
2100 sb->s_feature_ro_compat |=
2101 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
2102 sb->s_state &= ~EXT2_VALID_FS;
2103 ext2fs_mark_super_dirty(fs);
2104 printf(_("\nSparse superblock flag set. %s"),
2109 fputs(_("\nClearing the sparse superblock flag not supported.\n"),
2115 sb->s_lastcheck = last_check_time;
2116 ext2fs_mark_super_dirty(fs);
2117 printf(_("Setting time filesystem last checked to %s\n"),
2118 ctime(&last_check_time));
2121 sb->s_def_resuid = resuid;
2122 ext2fs_mark_super_dirty(fs);
2123 printf(_("Setting reserved blocks uid to %lu\n"), resuid);
2126 if (strlen(new_label) > sizeof(sb->s_volume_name))
2127 fputs(_("Warning: label too long, truncating.\n"),
2129 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
2130 strncpy(sb->s_volume_name, new_label,
2131 sizeof(sb->s_volume_name));
2132 ext2fs_mark_super_dirty(fs);
2135 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
2136 strncpy(sb->s_last_mounted, new_last_mounted,
2137 sizeof(sb->s_last_mounted));
2138 ext2fs_mark_super_dirty(fs);
2141 rc = update_mntopts(fs, mntopts_cmd);
2146 rc = update_feature_set(fs, features_cmd);
2151 rc = parse_extended_opts(fs, extended_cmd);
2154 if (clear_mmp && !f_flag) {
2155 fputs(_("Error in using clear_mmp. "
2156 "It must be used with -f\n"),
2162 rc = ext2fs_mmp_clear(fs);
2165 if (journal_size || journal_device) {
2166 rc = add_journal(fs);
2172 if (mount_flags & EXT2_MF_MOUNTED) {
2173 fputs(_("The quota feature may only be changed when "
2174 "the filesystem is unmounted.\n"), stderr);
2178 handle_quota_options(fs);
2185 if (sb->s_feature_ro_compat &
2186 EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
2188 * Changing the UUID requires rewriting all metadata,
2189 * which can race with a mounted fs. Don't allow that.
2191 if (mount_flags & EXT2_MF_MOUNTED) {
2192 fputs(_("The UUID may only be "
2193 "changed when the filesystem is "
2194 "unmounted.\n"), stderr);
2197 if (check_fsck_needed(fs))
2201 * Determine if the block group checksums are
2202 * correct so we know whether or not to set
2205 for (i = 0; i < fs->group_desc_count; i++)
2206 if (!ext2fs_group_desc_csum_verify(fs, i))
2208 if (i >= fs->group_desc_count)
2211 if ((strcasecmp(new_UUID, "null") == 0) ||
2212 (strcasecmp(new_UUID, "clear") == 0)) {
2213 uuid_clear(sb->s_uuid);
2214 } else if (strcasecmp(new_UUID, "time") == 0) {
2215 uuid_generate_time(sb->s_uuid);
2216 } else if (strcasecmp(new_UUID, "random") == 0) {
2217 uuid_generate(sb->s_uuid);
2218 } else if (uuid_parse(new_UUID, sb->s_uuid)) {
2219 com_err(program_name, 0, "%s",
2220 _("Invalid UUID format\n"));
2225 for (i = 0; i < fs->group_desc_count; i++)
2226 ext2fs_group_desc_csum_set(fs, i);
2227 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
2229 ext2fs_mark_super_dirty(fs);
2232 if (mount_flags & EXT2_MF_MOUNTED) {
2233 fputs(_("The inode size may only be "
2234 "changed when the filesystem is "
2235 "unmounted.\n"), stderr);
2239 if (fs->super->s_feature_incompat &
2240 EXT4_FEATURE_INCOMPAT_FLEX_BG) {
2241 fputs(_("Changing the inode size not supported for "
2242 "filesystems with the flex_bg\n"
2243 "feature enabled.\n"),
2249 * We want to update group descriptor also
2250 * with the new free inode count
2252 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
2253 if (resize_inode(fs, new_inode_size) == 0) {
2254 printf(_("Setting inode size %lu\n"),
2257 printf("%s", _("Failed to change inode size\n"));
2266 sb->s_raid_stride = stride;
2267 ext2fs_mark_super_dirty(fs);
2268 printf(_("Setting stride size to %d\n"), stride);
2270 if (stripe_width_set) {
2271 sb->s_raid_stripe_width = stripe_width;
2272 ext2fs_mark_super_dirty(fs);
2273 printf(_("Setting stripe width to %d\n"), stripe_width);
2275 if (ext_mount_opts) {
2276 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts,
2277 sizeof(fs->super->s_mount_opts));
2278 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0;
2279 ext2fs_mark_super_dirty(fs);
2280 printf(_("Setting extended default mount options to '%s'\n"),
2282 free(ext_mount_opts);
2285 remove_error_table(&et_ext2_error_table);
2289 ext2fs_mmp_stop(fs);
2293 return (ext2fs_close(fs) ? 1 : 0);