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> */
47 #define _DEFAULT_SOURCE /* since glibc 2.20 _BSD_SOURCE is deprecated */
52 #include <sys/types.h>
56 #include "ext2fs/ext2_fs.h"
57 #include "ext2fs/ext2fs.h"
58 #include "ext2fs/kernel-jbd.h"
59 #include "et/com_err.h"
60 #include "support/plausible.h"
61 #include "support/quotaio.h"
62 #include "uuid/uuid.h"
65 #include "blkid/blkid.h"
67 #include "../version.h"
68 #include "support/nls-enable.h"
70 #define QOPT_ENABLE (1)
71 #define QOPT_DISABLE (-1)
73 extern int ask_yn(const char *string, int def);
75 const char *program_name = "tune2fs";
77 char *new_label, *new_last_mounted, *new_UUID;
79 static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag;
80 static int m_flag, M_flag, Q_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag;
83 static time_t last_check_time;
84 static int print_label;
85 static int max_mount_count, mount_count, mount_flags;
86 static unsigned long interval;
87 static blk64_t reserved_blocks;
88 static double reserved_ratio;
89 static unsigned long resgid, resuid;
90 static unsigned short errors;
92 static char *features_cmd;
93 static char *mntopts_cmd;
94 static int stride, stripe_width;
95 static int stride_set, stripe_width_set;
96 static char *extended_cmd;
97 static unsigned long new_inode_size;
98 static char *ext_mount_opts;
99 static int quota_enable[MAXQUOTAS];
100 static int rewrite_checksums;
101 static int feature_64bit;
102 static int fsck_requested;
103 static char *undo_file;
105 int journal_size, journal_flags;
106 char *journal_device;
107 static blk64_t journal_location = ~0LL;
109 static struct list_head blk_move_list;
112 struct list_head list;
117 errcode_t ext2fs_run_ext3_journal(ext2_filsys *fs);
119 static const char *fsck_explain = N_("\nThis operation requires a freshly checked filesystem.\n");
121 static const char *please_fsck = N_("Please run e2fsck -f on the filesystem.\n");
122 static const char *please_dir_fsck =
123 N_("Please run e2fsck -fD on the filesystem.\n");
125 #ifdef CONFIG_BUILD_FINDFS
126 void do_findfs(int argc, char **argv);
129 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
130 int journal_enable_debug = -1;
133 static void usage(void)
136 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] [-f] "
138 "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
139 "\t[-m reserved_blocks_percent] [-o [^]mount_options[,...]]\n"
140 "\t[-r reserved_blocks_count] [-u user] [-C mount_count]\n"
141 "\t[-L volume_label] [-M last_mounted_dir]\n"
142 "\t[-O [^]feature[,...]] [-Q quota_options]\n"
143 "\t[-E extended-option[,...]] [-T last_check_time] "
144 "[-U UUID]\n\t[-I new_inode_size] [-z undo_file] device\n"),
149 static __u32 ok_features[3] = {
151 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
152 EXT2_FEATURE_COMPAT_DIR_INDEX,
154 EXT2_FEATURE_INCOMPAT_FILETYPE |
155 EXT3_FEATURE_INCOMPAT_EXTENTS |
156 EXT4_FEATURE_INCOMPAT_FLEX_BG |
157 EXT4_FEATURE_INCOMPAT_EA_INODE|
158 EXT4_FEATURE_INCOMPAT_MMP |
159 EXT4_FEATURE_INCOMPAT_64BIT |
160 EXT4_FEATURE_INCOMPAT_ENCRYPT |
161 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
162 EXT4_FEATURE_INCOMPAT_LARGEDIR,
164 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
165 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
166 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
167 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
168 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
169 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER |
170 EXT4_FEATURE_RO_COMPAT_QUOTA |
171 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM |
172 EXT4_FEATURE_RO_COMPAT_READONLY |
173 EXT4_FEATURE_RO_COMPAT_PROJECT
176 static __u32 clear_ok_features[3] = {
178 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
179 EXT2_FEATURE_COMPAT_RESIZE_INODE |
180 EXT2_FEATURE_COMPAT_DIR_INDEX,
182 EXT2_FEATURE_INCOMPAT_FILETYPE |
183 EXT4_FEATURE_INCOMPAT_FLEX_BG |
184 EXT4_FEATURE_INCOMPAT_MMP |
185 EXT4_FEATURE_INCOMPAT_64BIT |
186 EXT4_FEATURE_INCOMPAT_CSUM_SEED,
188 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
189 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
190 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
191 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
192 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
193 EXT4_FEATURE_RO_COMPAT_QUOTA |
194 EXT4_FEATURE_RO_COMPAT_PROJECT |
195 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM |
196 EXT4_FEATURE_RO_COMPAT_READONLY
200 * Try to get journal super block if any
202 static int get_journal_sb(ext2_filsys jfs, char buf[SUPERBLOCK_SIZE])
205 journal_superblock_t *jsb;
207 if (!ext2fs_has_feature_journal_dev(jfs->super)) {
208 return EXT2_ET_UNSUPP_FEATURE;
211 /* Get the journal superblock */
212 if ((retval = io_channel_read_blk64(jfs->io,
213 ext2fs_journal_sb_start(jfs->blocksize), -SUPERBLOCK_SIZE, buf))) {
214 com_err(program_name, retval, "%s",
215 _("while reading journal superblock"));
219 jsb = (journal_superblock_t *) buf;
220 if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) ||
221 (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) {
222 fputs(_("Journal superblock not found!\n"), stderr);
223 return EXT2_ET_BAD_MAGIC;
229 static __u8 *journal_user(__u8 uuid[UUID_SIZE], __u8 s_users[JFS_USERS_SIZE],
233 for (i = 0; i < nr_users; i++) {
234 if (memcmp(uuid, &s_users[i * UUID_SIZE], UUID_SIZE) == 0)
235 return &s_users[i * UUID_SIZE];
242 * Remove an external journal from the filesystem
244 static int remove_journal_device(ext2_filsys fs)
248 char buf[SUPERBLOCK_SIZE] __attribute__ ((aligned(8)));
249 journal_superblock_t *jsb;
252 int commit_remove_journal = 0;
256 commit_remove_journal = 1; /* force removal even if error */
258 uuid_unparse(fs->super->s_journal_uuid, buf);
259 journal_path = blkid_get_devname(NULL, "UUID", buf);
263 ext2fs_find_block_device(fs->super->s_journal_dev);
265 goto no_valid_journal;
268 #ifdef CONFIG_TESTIO_DEBUG
269 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
270 io_ptr = test_io_manager;
271 test_io_backing_manager = unix_io_manager;
274 io_ptr = unix_io_manager;
275 retval = ext2fs_open(journal_path, EXT2_FLAG_RW|
276 EXT2_FLAG_JOURNAL_DEV_OK, 0,
277 fs->blocksize, io_ptr, &jfs);
279 com_err(program_name, retval, "%s",
280 _("while trying to open external journal"));
281 goto no_valid_journal;
284 if ((retval = get_journal_sb(jfs, buf))) {
285 if (retval == EXT2_ET_UNSUPP_FEATURE)
286 fprintf(stderr, _("%s is not a journal device.\n"),
288 goto no_valid_journal;
291 jsb = (journal_superblock_t *) buf;
292 /* Find the filesystem UUID */
293 nr_users = ntohl(jsb->s_nr_users);
295 if (!journal_user(fs->super->s_uuid, jsb->s_users, nr_users)) {
296 fputs(_("Filesystem's UUID not found on journal device.\n"),
298 commit_remove_journal = 1;
299 goto no_valid_journal;
302 for (i = 0; i < nr_users; i++)
303 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16);
304 jsb->s_nr_users = htonl(nr_users);
306 /* Write back the journal superblock */
307 retval = io_channel_write_blk64(jfs->io,
308 ext2fs_journal_sb_start(fs->blocksize),
309 -SUPERBLOCK_SIZE, buf);
311 com_err(program_name, retval,
312 "while writing journal superblock.");
313 goto no_valid_journal;
316 commit_remove_journal = 1;
319 if (commit_remove_journal == 0) {
320 fputs(_("Cannot locate journal device. It was NOT removed\n"
321 "Use -f option to remove missing journal device.\n"),
325 fs->super->s_journal_dev = 0;
326 memset(fs->super->s_jnl_blocks, 0, sizeof(fs->super->s_jnl_blocks));
327 uuid_clear(fs->super->s_journal_uuid);
328 ext2fs_mark_super_dirty(fs);
329 fputs(_("Journal removed\n"), stdout);
335 /* Helper function for remove_journal_inode */
336 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
337 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
338 blk64_t ref_block EXT2FS_ATTR((unused)),
339 int ref_offset EXT2FS_ATTR((unused)),
340 void *private EXT2FS_ATTR((unused)))
346 ext2fs_unmark_block_bitmap2(fs->block_map, block);
347 group = ext2fs_group_of_blk2(fs, block);
348 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
349 ext2fs_group_desc_csum_set(fs, group);
350 ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs));
355 * Remove the journal inode from the filesystem
357 static errcode_t remove_journal_inode(ext2_filsys fs)
359 struct ext2_inode inode;
361 ino_t ino = fs->super->s_journal_inum;
363 retval = ext2fs_read_inode(fs, ino, &inode);
365 com_err(program_name, retval, "%s",
366 _("while reading journal inode"));
369 if (ino == EXT2_JOURNAL_INO) {
370 retval = ext2fs_read_bitmaps(fs);
372 com_err(program_name, retval, "%s",
373 _("while reading bitmaps"));
376 retval = ext2fs_block_iterate3(fs, ino,
377 BLOCK_FLAG_READ_ONLY, NULL,
378 release_blocks_proc, NULL);
380 com_err(program_name, retval, "%s",
381 _("while clearing journal inode"));
384 memset(&inode, 0, sizeof(inode));
385 ext2fs_mark_bb_dirty(fs);
386 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
388 inode.i_flags &= ~EXT2_IMMUTABLE_FL;
389 retval = ext2fs_write_inode(fs, ino, &inode);
391 com_err(program_name, retval, "%s",
392 _("while writing journal inode"));
395 fs->super->s_journal_inum = 0;
396 memset(fs->super->s_jnl_blocks, 0, sizeof(fs->super->s_jnl_blocks));
397 ext2fs_mark_super_dirty(fs);
403 * Update the default mount options
405 static int update_mntopts(ext2_filsys fs, char *mntopts)
407 struct ext2_super_block *sb = fs->super;
409 if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) {
410 fprintf(stderr, _("Invalid mount option set: %s\n"),
414 ext2fs_mark_super_dirty(fs);
419 static void check_fsck_needed(ext2_filsys fs, const char *prompt)
421 /* Refuse to modify anything but a freshly checked valid filesystem. */
422 if (!(fs->super->s_state & EXT2_VALID_FS) ||
423 (fs->super->s_state & EXT2_ERROR_FS) ||
424 (fs->super->s_lastcheck < fs->super->s_mtime)) {
425 puts(_(fsck_explain));
426 puts(_(please_fsck));
427 if (mount_flags & EXT2_MF_READONLY)
428 printf("%s", _("(and reboot afterwards!)\n"));
432 /* Give the admin a few seconds to bail out of a dangerous op. */
433 if (!getenv("TUNE2FS_FORCE_PROMPT") && (!isatty(0) || !isatty(1)))
440 static void request_dir_fsck_afterwards(ext2_filsys fs)
442 static int requested;
447 fs->super->s_state &= ~EXT2_VALID_FS;
448 puts(_(fsck_explain));
449 puts(_(please_dir_fsck));
450 if (mount_flags & EXT2_MF_READONLY)
451 printf("%s", _("(and reboot afterwards!)\n"));
454 static void request_fsck_afterwards(ext2_filsys fs)
456 static int requested = 0;
461 fs->super->s_state &= ~EXT2_VALID_FS;
462 printf("\n%s\n", _(please_fsck));
463 if (mount_flags & EXT2_MF_READONLY)
464 printf("%s", _("(and reboot afterwards!)\n"));
467 static void convert_64bit(ext2_filsys fs, int direction)
470 * Is resize2fs going to demand a fsck run? Might as well tell the
473 if (!fsck_requested &&
474 ((fs->super->s_state & EXT2_ERROR_FS) ||
475 !(fs->super->s_state & EXT2_VALID_FS) ||
476 fs->super->s_lastcheck < fs->super->s_mtime))
477 request_fsck_afterwards(fs);
479 fprintf(stderr, _("After running e2fsck, please run `resize2fs %s %s"),
480 direction > 0 ? "-b" : "-s", fs->device_name);
482 fprintf(stderr, _("Please run `resize2fs %s %s"),
483 direction > 0 ? "-b" : "-s", fs->device_name);
486 fprintf(stderr, _(" -z \"%s\""), undo_file);
488 fprintf(stderr, _("' to enable 64-bit mode.\n"));
490 fprintf(stderr, _("' to disable 64-bit mode.\n"));
493 /* Rewrite extents */
494 static errcode_t rewrite_extents(ext2_filsys fs, ext2_ino_t ino,
495 struct ext2_inode *inode)
497 ext2_extent_handle_t handle;
498 struct ext2fs_extent extent;
500 struct ext2_extent_info info;
502 if (!(inode->i_flags & EXT4_EXTENTS_FL) ||
503 !ext2fs_has_feature_metadata_csum(fs->super))
506 errcode = ext2fs_extent_open(fs, ino, &handle);
510 errcode = ext2fs_extent_get(handle, EXT2_EXTENT_ROOT, &extent);
515 errcode = ext2fs_extent_get_info(handle, &info);
520 * If this is the first extent in an extent block that we
521 * haven't visited, rewrite the extent to force the ETB
522 * checksum to be rewritten.
524 if (info.curr_entry == 1 && info.curr_level != 0 &&
525 !(extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)) {
526 errcode = ext2fs_extent_replace(handle, 0, &extent);
531 /* Skip to the end of a block of leaf nodes */
532 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
533 errcode = ext2fs_extent_get(handle,
534 EXT2_EXTENT_LAST_SIB,
540 errcode = ext2fs_extent_get(handle, EXT2_EXTENT_NEXT, &extent);
541 } while (errcode == 0);
544 /* Ok if we run off the end */
545 if (errcode == EXT2_ET_EXTENT_NO_NEXT)
547 ext2fs_extent_free(handle);
552 * Rewrite directory blocks with checksums
554 struct rewrite_dir_context {
561 static int rewrite_dir_block(ext2_filsys fs,
563 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
564 blk64_t ref_block EXT2FS_ATTR((unused)),
565 int ref_offset EXT2FS_ATTR((unused)),
568 struct ext2_dx_countlimit *dcl = NULL;
569 struct rewrite_dir_context *ctx = priv_data;
570 int dcl_offset, changed = 0;
572 ctx->errcode = ext2fs_read_dir_block4(fs, *blocknr, ctx->buf, 0,
577 /* if htree node... */
579 ext2fs_get_dx_countlimit(fs, (struct ext2_dir_entry *)ctx->buf,
582 if (!ext2fs_has_feature_metadata_csum(fs->super)) {
583 /* Ensure limit is the max size */
584 int max_entries = (fs->blocksize - dcl_offset) /
585 sizeof(struct ext2_dx_entry);
586 if (ext2fs_le16_to_cpu(dcl->limit) != max_entries) {
588 dcl->limit = ext2fs_cpu_to_le16(max_entries);
591 /* If htree block is full then rebuild the dir */
592 if (ext2fs_le16_to_cpu(dcl->count) ==
593 ext2fs_le16_to_cpu(dcl->limit)) {
594 request_dir_fsck_afterwards(fs);
598 * Ensure dcl->limit is small enough to leave room for
601 int max_entries = (fs->blocksize - (dcl_offset +
602 sizeof(struct ext2_dx_tail))) /
603 sizeof(struct ext2_dx_entry);
604 if (ext2fs_le16_to_cpu(dcl->limit) != max_entries)
605 dcl->limit = ext2fs_cpu_to_le16(max_entries);
606 /* Always rewrite checksum */
610 unsigned int rec_len, name_size;
611 char *top = ctx->buf + fs->blocksize;
612 struct ext2_dir_entry *de = (struct ext2_dir_entry *)ctx->buf;
613 struct ext2_dir_entry *last_de = NULL, *penultimate_de = NULL;
615 /* Find last and penultimate dirent */
616 while ((char *)de < top) {
617 penultimate_de = last_de;
619 ctx->errcode = ext2fs_get_rec_len(fs, de, &rec_len);
620 if (!ctx->errcode && !rec_len)
621 ctx->errcode = EXT2_ET_DIR_CORRUPTED;
624 de = (struct ext2_dir_entry *)(((char *)de) + rec_len);
626 ctx->errcode = ext2fs_get_rec_len(fs, last_de, &rec_len);
629 name_size = ext2fs_dirent_name_len(last_de);
631 if (!ext2fs_has_feature_metadata_csum(fs->super)) {
634 if (last_de->inode ||
636 rec_len != sizeof(struct ext2_dir_entry_tail))
639 * The last dirent is unused and the right length to
640 * have stored a checksum. Erase it.
642 ctx->errcode = ext2fs_get_rec_len(fs, penultimate_de,
645 ctx->errcode = EXT2_ET_DIR_CORRUPTED;
648 ext2fs_set_rec_len(fs, rec_len +
649 sizeof(struct ext2_dir_entry_tail),
653 unsigned csum_size = sizeof(struct ext2_dir_entry_tail);
654 struct ext2_dir_entry_tail *t;
657 * If the last dirent looks like the tail, just update
660 if (!last_de->inode &&
661 rec_len == csum_size) {
662 t = (struct ext2_dir_entry_tail *)last_de;
663 t->det_reserved_name_len =
664 EXT2_DIR_NAME_LEN_CSUM;
669 name_size = (name_size & ~3) + 4;
670 /* If there's not enough space for the tail, e2fsck */
671 if (rec_len <= (8 + name_size + csum_size)) {
672 request_dir_fsck_afterwards(fs);
675 /* Shorten that last de and insert the tail */
676 ext2fs_set_rec_len(fs, rec_len - csum_size, last_de);
677 t = EXT2_DIRENT_TAIL(ctx->buf, fs->blocksize);
678 ext2fs_initialize_dirent_tail(fs, t);
680 /* Always update checksum */
689 ctx->errcode = ext2fs_write_dir_block4(fs, *blocknr, ctx->buf,
697 static errcode_t rewrite_directory(ext2_filsys fs, ext2_ino_t dir,
698 struct ext2_inode *inode)
701 struct rewrite_dir_context ctx;
703 retval = ext2fs_get_mem(fs->blocksize, &ctx.buf);
707 ctx.is_htree = (inode->i_flags & EXT2_INDEX_FL);
710 retval = ext2fs_block_iterate3(fs, dir, BLOCK_FLAG_READ_ONLY |
711 BLOCK_FLAG_DATA_ONLY,
712 0, rewrite_dir_block, &ctx);
714 ext2fs_free_mem(&ctx.buf);
722 * Context information that does not change across rewrite_one_inode()
725 struct rewrite_context {
727 struct ext2_inode *zero_inode;
732 #define fatal_err(code, args...) \
734 com_err(__func__, code, args); \
738 static void update_ea_inode_hash(struct rewrite_context *ctx, ext2_ino_t ino,
739 struct ext2_inode *inode)
745 retval = ext2fs_file_open(ctx->fs, ino, 0, &file);
747 fatal_err(retval, "open ea_inode");
748 retval = ext2fs_file_read(file, ctx->ea_buf, inode->i_size,
751 fatal_err(retval, "read ea_inode");
752 retval = ext2fs_file_close(file);
754 fatal_err(retval, "close ea_inode");
756 hash = ext2fs_crc32c_le(ctx->fs->csum_seed,
757 (unsigned char *) ctx->ea_buf, inode->i_size);
758 ext2fs_set_ea_inode_hash(inode, hash);
761 static int update_xattr_entry_hashes(ext2_filsys fs,
762 struct ext2_ext_attr_entry *entry,
763 struct ext2_ext_attr_entry *end)
768 while (entry < end && !EXT2_EXT_IS_LAST_ENTRY(entry)) {
769 if (entry->e_value_inum) {
770 retval = ext2fs_ext_attr_hash_entry2(fs, entry, NULL,
773 fatal_err(retval, "hash ea_inode entry");
776 entry = EXT2_EXT_ATTR_NEXT(entry);
781 static void update_inline_xattr_hashes(struct rewrite_context *ctx,
782 struct ext2_inode_large *inode)
784 struct ext2_ext_attr_entry *start, *end;
787 if (inode->i_extra_isize == 0)
790 if (inode->i_extra_isize & 3 ||
791 inode->i_extra_isize > ctx->inode_size - EXT2_GOOD_OLD_INODE_SIZE)
792 fatal_err(EXT2_ET_INODE_CORRUPTED, "bad i_extra_isize")
794 ea_magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
795 inode->i_extra_isize);
796 if (*ea_magic != EXT2_EXT_ATTR_MAGIC)
799 start = (struct ext2_ext_attr_entry *)(ea_magic + 1);
800 end = (struct ext2_ext_attr_entry *)((char *)inode + ctx->inode_size);
802 update_xattr_entry_hashes(ctx->fs, start, end);
805 static void update_block_xattr_hashes(struct rewrite_context *ctx,
808 struct ext2_ext_attr_header *header;
809 struct ext2_ext_attr_entry *start, *end;
811 header = (struct ext2_ext_attr_header *)block_buf;
812 if (header->h_magic != EXT2_EXT_ATTR_MAGIC)
815 start = (struct ext2_ext_attr_entry *)(header+1);
816 end = (struct ext2_ext_attr_entry *)(block_buf + ctx->fs->blocksize);
818 if (update_xattr_entry_hashes(ctx->fs, start, end))
819 ext2fs_ext_attr_block_rehash(header, end);
822 static void rewrite_one_inode(struct rewrite_context *ctx, ext2_ino_t ino,
823 struct ext2_inode *inode)
825 blk64_t file_acl_block;
828 if (!ext2fs_test_inode_bitmap2(ctx->fs->inode_map, ino)) {
829 if (!memcmp(inode, ctx->zero_inode, ctx->inode_size))
831 memset(inode, 0, ctx->inode_size);
834 if (inode->i_flags & EXT4_EA_INODE_FL)
835 update_ea_inode_hash(ctx, ino, inode);
837 if (ctx->inode_size != EXT2_GOOD_OLD_INODE_SIZE)
838 update_inline_xattr_hashes(ctx,
839 (struct ext2_inode_large *)inode);
841 retval = ext2fs_write_inode_full(ctx->fs, ino, inode, ctx->inode_size);
843 fatal_err(retval, "while writing inode");
845 retval = rewrite_extents(ctx->fs, ino, inode);
847 fatal_err(retval, "while rewriting extents");
849 if (LINUX_S_ISDIR(inode->i_mode) &&
850 ext2fs_inode_has_valid_blocks2(ctx->fs, inode)) {
851 retval = rewrite_directory(ctx->fs, ino, inode);
853 fatal_err(retval, "while rewriting directories");
856 file_acl_block = ext2fs_file_acl_block(ctx->fs, inode);
860 retval = ext2fs_read_ext_attr3(ctx->fs, file_acl_block, ctx->ea_buf,
863 fatal_err(retval, "while rewriting extended attribute");
865 update_block_xattr_hashes(ctx, ctx->ea_buf);
866 retval = ext2fs_write_ext_attr3(ctx->fs, file_acl_block, ctx->ea_buf,
869 fatal_err(retval, "while rewriting extended attribute");
873 * Forcibly set checksums in all inodes.
875 static void rewrite_inodes(ext2_filsys fs)
877 ext2_inode_scan scan;
880 struct ext2_inode *inode;
882 struct rewrite_context ctx = {
884 .inode_size = EXT2_INODE_SIZE(fs->super),
887 if (fs->super->s_creator_os == EXT2_OS_HURD)
890 retval = ext2fs_get_mem(ctx.inode_size, &inode);
892 fatal_err(retval, "while allocating memory");
894 retval = ext2fs_get_memzero(ctx.inode_size, &ctx.zero_inode);
896 fatal_err(retval, "while allocating memory");
898 retval = ext2fs_get_mem(64 * 1024, &ctx.ea_buf);
900 fatal_err(retval, "while allocating memory");
903 * Extended attribute inodes have a lookup hash that needs to be
904 * recalculated with the new csum_seed. Other inodes referencing xattr
905 * inodes need this value to be up to date. That's why we do two passes:
907 * pass 1: update xattr inodes to update their lookup hash as well as
910 * pass 2: go over other inodes to update their checksums.
912 if (ext2fs_has_feature_ea_inode(fs->super))
916 for (;pass <= 2; pass++) {
917 retval = ext2fs_open_inode_scan(fs, 0, &scan);
919 fatal_err(retval, "while opening inode scan");
922 retval = ext2fs_get_next_inode_full(scan, &ino, inode,
925 fatal_err(retval, "while getting next inode");
930 (inode->i_flags & EXT4_EA_INODE_FL)) ||
932 !(inode->i_flags & EXT4_EA_INODE_FL)))
933 rewrite_one_inode(&ctx, ino, inode);
936 ext2fs_close_inode_scan(scan);
939 ext2fs_free_mem(&ctx.zero_inode);
940 ext2fs_free_mem(&ctx.ea_buf);
941 ext2fs_free_mem(&inode);
944 static void rewrite_metadata_checksums(ext2_filsys fs)
949 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
950 ext2fs_init_csum_seed(fs);
951 for (i = 0; i < fs->group_desc_count; i++)
952 ext2fs_group_desc_csum_set(fs, i);
953 retval = ext2fs_read_bitmaps(fs);
955 fatal_err(retval, "while reading bitmaps");
957 ext2fs_mark_ib_dirty(fs);
958 ext2fs_mark_bb_dirty(fs);
959 ext2fs_mmp_update2(fs, 1);
960 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
961 fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
962 if (ext2fs_has_feature_metadata_csum(fs->super))
963 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
965 fs->super->s_checksum_type = 0;
966 ext2fs_mark_super_dirty(fs);
969 static void enable_uninit_bg(ext2_filsys fs)
971 struct ext2_group_desc *gd;
974 for (i = 0; i < fs->group_desc_count; i++) {
975 gd = ext2fs_group_desc(fs, fs->group_desc, i);
976 gd->bg_itable_unused = 0;
977 gd->bg_flags = EXT2_BG_INODE_ZEROED;
978 ext2fs_group_desc_csum_set(fs, i);
980 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
983 static errcode_t zero_empty_inodes(ext2_filsys fs)
985 int length = EXT2_INODE_SIZE(fs->super);
986 struct ext2_inode *inode = NULL;
987 ext2_inode_scan scan;
991 retval = ext2fs_open_inode_scan(fs, 0, &scan);
995 retval = ext2fs_get_mem(length, &inode);
1000 retval = ext2fs_get_next_inode_full(scan, &ino, inode, length);
1005 if (!ext2fs_test_inode_bitmap2(fs->inode_map, ino)) {
1006 memset(inode, 0, length);
1007 retval = ext2fs_write_inode_full(fs, ino, inode,
1015 ext2fs_free_mem(&inode);
1016 ext2fs_close_inode_scan(scan);
1020 static errcode_t disable_uninit_bg(ext2_filsys fs, __u32 csum_feature_flag)
1022 struct ext2_group_desc *gd;
1027 /* Load bitmaps to ensure that the uninit ones get written out */
1028 fs->super->s_feature_ro_compat |= csum_feature_flag;
1029 retval = ext2fs_read_bitmaps(fs);
1030 fs->super->s_feature_ro_compat &= ~csum_feature_flag;
1032 com_err("disable_uninit_bg", retval,
1033 "while reading bitmaps");
1034 request_fsck_afterwards(fs);
1037 ext2fs_mark_ib_dirty(fs);
1038 ext2fs_mark_bb_dirty(fs);
1040 /* If we're only turning off uninit_bg, zero the inodes */
1041 if (csum_feature_flag == EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
1042 retval = zero_empty_inodes(fs);
1044 com_err("disable_uninit_bg", retval,
1045 "while zeroing unused inodes");
1046 request_fsck_afterwards(fs);
1051 /* The bbitmap is zeroed; we must mark group metadata blocks in use */
1052 for (i = 0; i < fs->group_desc_count; i++) {
1053 b = ext2fs_block_bitmap_loc(fs, i);
1054 ext2fs_mark_block_bitmap2(fs->block_map, b);
1055 b = ext2fs_inode_bitmap_loc(fs, i);
1056 ext2fs_mark_block_bitmap2(fs->block_map, b);
1058 retval = ext2fs_super_and_bgd_loc2(fs, i, &b, &c, &d, NULL);
1059 if (retval == 0 && b)
1060 ext2fs_mark_block_bitmap2(fs->block_map, b);
1061 if (retval == 0 && c)
1062 ext2fs_mark_block_bitmap2(fs->block_map, c);
1063 if (retval == 0 && d)
1064 ext2fs_mark_block_bitmap2(fs->block_map, d);
1066 com_err("disable_uninit_bg", retval,
1067 "while initializing block bitmaps");
1068 request_fsck_afterwards(fs);
1071 gd = ext2fs_group_desc(fs, fs->group_desc, i);
1072 gd->bg_itable_unused = 0;
1074 ext2fs_group_desc_csum_set(fs, i);
1076 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1077 ext2fs_mark_super_dirty(fs);
1083 try_confirm_csum_seed_support(void)
1085 if (access("/sys/fs/ext4/features/metadata_csum_seed", R_OK))
1086 fputs(_("WARNING: Could not confirm kernel support for "
1087 "metadata_csum_seed.\n This requires Linux >= "
1088 "v4.4.\n"), stderr);
1092 * Update the feature set as provided by the user.
1094 static int update_feature_set(ext2_filsys fs, char *features)
1096 struct ext2_super_block *sb = fs->super;
1097 __u32 old_features[3];
1099 unsigned int mask_err;
1101 enum quota_type qtype;
1103 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
1104 ((&sb->s_feature_compat)[(type)] & (mask)))
1105 #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
1106 !((&sb->s_feature_compat)[(type)] & (mask)))
1107 #define FEATURE_CHANGED(type, mask) ((mask) & \
1108 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
1110 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat;
1111 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat;
1112 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat;
1114 if (e2p_edit_feature2(features, &sb->s_feature_compat,
1115 ok_features, clear_ok_features,
1116 &type_err, &mask_err)) {
1119 _("Invalid filesystem option set: %s\n"),
1121 else if (type_err & E2P_FEATURE_NEGATE_FLAG)
1122 fprintf(stderr, _("Clearing filesystem feature '%s' "
1123 "not supported.\n"),
1124 e2p_feature2string(type_err &
1125 E2P_FEATURE_TYPE_MASK,
1128 fprintf(stderr, _("Setting filesystem feature '%s' "
1129 "not supported.\n"),
1130 e2p_feature2string(type_err, mask_err));
1134 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
1135 if ((mount_flags & EXT2_MF_MOUNTED) &&
1136 !(mount_flags & EXT2_MF_READONLY)) {
1137 fputs(_("The has_journal feature may only be "
1138 "cleared when the filesystem is\n"
1139 "unmounted or mounted "
1140 "read-only.\n"), stderr);
1143 if (ext2fs_has_feature_journal_needs_recovery(sb) &&
1145 fputs(_("The needs_recovery flag is set. "
1146 "Please run e2fsck before clearing\n"
1147 "the has_journal flag.\n"), stderr);
1150 if (sb->s_journal_inum) {
1151 if (remove_journal_inode(fs))
1154 if (sb->s_journal_dev) {
1155 if (remove_journal_device(fs))
1160 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1161 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
1162 if (ext2fs_has_feature_meta_bg(sb)) {
1163 fputs(_("Setting filesystem feature 'sparse_super' "
1164 "not supported\nfor filesystems with "
1165 "the meta_bg feature enabled.\n"),
1171 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
1174 if ((mount_flags & EXT2_MF_MOUNTED) ||
1175 (mount_flags & EXT2_MF_READONLY)) {
1176 fputs(_("The multiple mount protection feature can't\n"
1177 "be set if the filesystem is mounted or\n"
1178 "read-only.\n"), stderr);
1182 error = ext2fs_mmp_init(fs);
1184 fputs(_("\nError while enabling multiple mount "
1185 "protection feature."), stderr);
1190 * We want to update group desc with the new free blocks count
1192 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1194 printf(_("Multiple mount protection has been enabled "
1195 "with update interval %ds.\n"),
1196 sb->s_mmp_update_interval);
1199 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
1202 if (mount_flags & EXT2_MF_READONLY) {
1203 fputs(_("The multiple mount protection feature cannot\n"
1204 "be disabled if the filesystem is readonly.\n"),
1209 error = ext2fs_read_bitmaps(fs);
1211 fputs(_("Error while reading bitmaps\n"), stderr);
1215 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL);
1217 struct mmp_struct *mmp_cmp = fs->mmp_cmp;
1219 if (error == EXT2_ET_MMP_MAGIC_INVALID)
1220 printf(_("Magic number in MMP block does not "
1221 "match. expected: %x, actual: %x\n"),
1222 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic);
1224 com_err(program_name, error, "%s",
1225 _("while reading MMP block."));
1229 /* We need to force out the group descriptors as well */
1230 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1231 ext2fs_block_alloc_stats2(fs, sb->s_mmp_block, -1);
1233 sb->s_mmp_block = 0;
1234 sb->s_mmp_update_interval = 0;
1237 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
1239 * If adding a journal flag, let the create journal
1240 * code below handle setting the flag and creating the
1241 * journal. We supply a default size if necessary.
1245 ext2fs_clear_feature_journal(sb);
1248 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) {
1249 if (!sb->s_def_hash_version)
1250 sb->s_def_hash_version = EXT2_HASH_HALF_MD4;
1251 if (uuid_is_null((unsigned char *) sb->s_hash_seed))
1252 uuid_generate((unsigned char *) sb->s_hash_seed);
1255 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
1256 if (ext2fs_check_desc(fs)) {
1257 fputs(_("Clearing the flex_bg flag would "
1258 "cause the the filesystem to be\n"
1259 "inconsistent.\n"), stderr);
1264 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1265 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
1266 if ((mount_flags & EXT2_MF_MOUNTED) &&
1267 !(mount_flags & EXT2_MF_READONLY)) {
1268 fputs(_("The huge_file feature may only be "
1269 "cleared when the filesystem is\n"
1270 "unmounted or mounted "
1271 "read-only.\n"), stderr);
1276 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1277 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
1278 check_fsck_needed(fs,
1279 _("Enabling checksums could take some time."));
1280 if (mount_flags & EXT2_MF_MOUNTED) {
1281 fputs(_("Cannot enable metadata_csum on a mounted "
1282 "filesystem!\n"), stderr);
1285 if (!ext2fs_has_feature_extents(fs->super))
1287 _("Extents are not enabled. The file extent "
1288 "tree can be checksummed, whereas block maps "
1289 "cannot. Not enabling extents reduces the "
1290 "coverage of metadata checksumming. "
1291 "Re-run with -O extent to rectify.\n"));
1292 if (!ext2fs_has_feature_64bit(fs->super))
1294 _("64-bit filesystem support is not enabled. "
1295 "The larger fields afforded by this feature "
1296 "enable full-strength checksumming. "
1297 "Run resize2fs -b to rectify.\n"));
1298 rewrite_checksums = 1;
1299 /* metadata_csum supersedes uninit_bg */
1300 ext2fs_clear_feature_gdt_csum(fs->super);
1302 /* if uninit_bg was previously off, rewrite group desc */
1303 if (!(old_features[E2P_FEATURE_RO_INCOMPAT] &
1304 EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
1305 enable_uninit_bg(fs);
1308 * Since metadata_csum supersedes uninit_bg, pretend like
1309 * uninit_bg has been off all along.
1311 old_features[E2P_FEATURE_RO_INCOMPAT] &=
1312 ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
1315 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1316 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
1317 __u32 test_features[3];
1319 check_fsck_needed(fs,
1320 _("Disabling checksums could take some time."));
1321 if (mount_flags & EXT2_MF_MOUNTED) {
1322 fputs(_("Cannot disable metadata_csum on a mounted "
1323 "filesystem!\n"), stderr);
1326 rewrite_checksums = 1;
1328 /* Enable uninit_bg unless the user expressly turned it off */
1329 memcpy(test_features, old_features, sizeof(test_features));
1330 test_features[E2P_FEATURE_RO_INCOMPAT] |=
1331 EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
1332 e2p_edit_feature2(features, test_features, ok_features,
1333 clear_ok_features, NULL, NULL);
1334 if (test_features[E2P_FEATURE_RO_INCOMPAT] &
1335 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)
1336 ext2fs_set_feature_gdt_csum(fs->super);
1339 * If we're turning off metadata_csum and not turning on
1340 * uninit_bg, rewrite group desc.
1342 if (!ext2fs_has_feature_gdt_csum(fs->super)) {
1343 err = disable_uninit_bg(fs,
1344 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
1349 * metadata_csum previously provided uninit_bg, so if
1350 * we're also setting the uninit_bg feature bit,
1351 * pretend like it was previously enabled. Checksums
1352 * will be rewritten with crc16 later.
1354 old_features[E2P_FEATURE_RO_INCOMPAT] |=
1355 EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
1356 fs->super->s_checksum_seed = 0;
1357 ext2fs_clear_feature_csum_seed(fs->super);
1360 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1361 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
1362 /* Do not enable uninit_bg when metadata_csum enabled */
1363 if (ext2fs_has_feature_metadata_csum(fs->super))
1364 ext2fs_clear_feature_gdt_csum(fs->super);
1366 enable_uninit_bg(fs);
1369 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1370 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
1371 err = disable_uninit_bg(fs,
1372 EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
1378 * We don't actually toggle 64bit; resize2fs does that. But this
1379 * must come after the metadata_csum feature_on so that it won't
1380 * complain about the lack of 64bit.
1382 if (FEATURE_ON(E2P_FEATURE_INCOMPAT,
1383 EXT4_FEATURE_INCOMPAT_64BIT)) {
1384 if (mount_flags & EXT2_MF_MOUNTED) {
1385 fprintf(stderr, _("Cannot enable 64-bit mode "
1386 "while mounted!\n"));
1389 ext2fs_clear_feature_64bit(sb);
1392 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT,
1393 EXT4_FEATURE_INCOMPAT_64BIT)) {
1394 if (mount_flags & EXT2_MF_MOUNTED) {
1395 fprintf(stderr, _("Cannot disable 64-bit mode "
1396 "while mounted!\n"));
1399 ext2fs_set_feature_64bit(sb);
1403 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1404 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
1406 * Set the Q_flag here and handle the quota options in the code
1411 /* Enable usr/grp quota by default */
1412 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1413 if (qtype != PRJQUOTA)
1414 quota_enable[qtype] = QOPT_ENABLE;
1416 quota_enable[qtype] = QOPT_DISABLE;
1419 ext2fs_clear_feature_quota(sb);
1422 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1423 EXT4_FEATURE_RO_COMPAT_PROJECT)) {
1424 if (fs->super->s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
1425 fprintf(stderr, _("Cannot enable project feature; "
1426 "inode size too small.\n"));
1430 quota_enable[PRJQUOTA] = QOPT_ENABLE;
1433 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1434 EXT4_FEATURE_RO_COMPAT_PROJECT)) {
1436 quota_enable[PRJQUOTA] = QOPT_DISABLE;
1439 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1440 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
1442 * Set the Q_flag here and handle the quota options in the code
1446 fputs(_("\nWarning: '^quota' option overrides '-Q'"
1447 "arguments.\n"), stderr);
1449 /* Disable all quota by default */
1450 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1451 quota_enable[qtype] = QOPT_DISABLE;
1454 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_ENCRYPT)) {
1455 fs->super->s_encrypt_algos[0] =
1456 EXT4_ENCRYPTION_MODE_AES_256_XTS;
1457 fs->super->s_encrypt_algos[1] =
1458 EXT4_ENCRYPTION_MODE_AES_256_CTS;
1461 if (FEATURE_ON(E2P_FEATURE_INCOMPAT,
1462 EXT4_FEATURE_INCOMPAT_CSUM_SEED)) {
1463 if (!ext2fs_has_feature_metadata_csum(sb)) {
1464 fputs(_("Setting feature 'metadata_csum_seed' "
1465 "is only supported\non filesystems with "
1466 "the metadata_csum feature enabled.\n"),
1470 try_confirm_csum_seed_support();
1471 fs->super->s_checksum_seed = fs->csum_seed;
1474 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT,
1475 EXT4_FEATURE_INCOMPAT_CSUM_SEED)) {
1478 uuid_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
1479 sizeof(fs->super->s_uuid));
1480 if (fs->super->s_checksum_seed != uuid_seed) {
1481 if (mount_flags & (EXT2_MF_BUSY|EXT2_MF_MOUNTED)) {
1482 fputs(_("UUID has changed since enabling "
1483 "metadata_csum. Filesystem must be unmounted "
1484 "\nto safely rewrite all metadata to match the new UUID.\n"),
1488 check_fsck_needed(fs, _("Recalculating checksums "
1489 "could take some time."));
1490 rewrite_checksums = 1;
1494 if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
1495 (sb->s_feature_compat || sb->s_feature_ro_compat ||
1496 sb->s_feature_incompat))
1497 ext2fs_update_dynamic_rev(fs);
1499 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
1500 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
1501 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1502 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
1503 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
1504 EXT2_FEATURE_INCOMPAT_FILETYPE) ||
1505 FEATURE_CHANGED(E2P_FEATURE_COMPAT,
1506 EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
1507 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1508 EXT2_FEATURE_RO_COMPAT_LARGE_FILE))
1509 request_fsck_afterwards(fs);
1511 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) ||
1512 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) ||
1513 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat))
1514 ext2fs_mark_super_dirty(fs);
1520 * Add a journal to the filesystem.
1522 static int add_journal(ext2_filsys fs)
1524 unsigned long journal_blocks;
1529 if (ext2fs_has_feature_journal(fs->super)) {
1530 fputs(_("The filesystem already has a journal.\n"), stderr);
1533 if (journal_device) {
1534 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
1536 proceed_question(-1);
1537 check_mount(journal_device, 0, _("journal"));
1538 #ifdef CONFIG_TESTIO_DEBUG
1539 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1540 io_ptr = test_io_manager;
1541 test_io_backing_manager = unix_io_manager;
1544 io_ptr = unix_io_manager;
1545 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
1546 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1547 fs->blocksize, io_ptr, &jfs);
1549 com_err(program_name, retval,
1550 _("\n\twhile trying to open journal on %s\n"),
1554 printf(_("Creating journal on device %s: "),
1558 retval = ext2fs_add_journal_device(fs, jfs);
1559 ext2fs_close_free(&jfs);
1561 com_err(program_name, retval,
1562 _("while adding filesystem to journal on %s"),
1566 fputs(_("done\n"), stdout);
1567 } else if (journal_size) {
1568 fputs(_("Creating journal inode: "), stdout);
1570 journal_blocks = figure_journal_size(journal_size, fs);
1572 if (journal_location_string)
1574 parse_num_blocks2(journal_location_string,
1575 fs->super->s_log_block_size);
1576 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
1580 fprintf(stderr, "\n");
1581 com_err(program_name, retval, "%s",
1582 _("\n\twhile trying to create journal file"));
1585 fputs(_("done\n"), stdout);
1587 * If the filesystem wasn't mounted, we need to force
1588 * the block group descriptors out.
1590 if ((mount_flags & EXT2_MF_MOUNTED) == 0)
1591 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1593 print_check_message(fs->super->s_max_mnt_count,
1594 fs->super->s_checkinterval);
1598 free(journal_device);
1602 static void handle_quota_options(ext2_filsys fs)
1607 enum quota_type qtype;
1608 unsigned int qtype_bits = 0;
1611 for (qtype = 0 ; qtype < MAXQUOTAS; qtype++)
1612 if (quota_enable[qtype] != 0)
1614 if (qtype == MAXQUOTAS)
1615 /* Nothing to do. */
1618 if (quota_enable[PRJQUOTA] == QOPT_ENABLE &&
1619 fs->super->s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
1620 fprintf(stderr, _("Cannot enable project quota; "
1621 "inode size too small.\n"));
1625 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1626 if (quota_enable[qtype] == QOPT_ENABLE)
1627 qtype_bits |= 1 << qtype;
1630 retval = quota_init_context(&qctx, fs, qtype_bits);
1632 com_err(program_name, retval,
1633 _("while initializing quota context in support library"));
1638 quota_compute_usage(qctx);
1640 for (qtype = 0 ; qtype < MAXQUOTAS; qtype++) {
1641 if (quota_enable[qtype] == QOPT_ENABLE &&
1642 *quota_sb_inump(fs->super, qtype) == 0) {
1643 if ((qf_ino = quota_file_exists(fs, qtype)) > 0) {
1644 retval = quota_update_limits(qctx, qf_ino,
1647 com_err(program_name, retval,
1648 _("while updating quota limits (%d)"),
1653 retval = quota_write_inode(qctx, 1 << qtype);
1655 com_err(program_name, retval,
1656 _("while writing quota file (%d)"),
1660 /* Enable Quota feature if one of quota enabled */
1661 if (!ext2fs_has_feature_quota(fs->super)) {
1662 ext2fs_set_feature_quota(fs->super);
1665 if (qtype == PRJQUOTA &&
1666 !ext2fs_has_feature_project(fs->super)) {
1667 ext2fs_set_feature_project(fs->super);
1670 } else if (quota_enable[qtype] == QOPT_DISABLE) {
1671 retval = quota_remove_inode(fs, qtype);
1673 com_err(program_name, retval,
1674 _("while removing quota file (%d)"),
1678 if (qtype == PRJQUOTA) {
1679 ext2fs_clear_feature_project(fs->super);
1685 quota_release_context(&qctx);
1686 /* Clear Quota feature if all quota types disabled. */
1688 for (qtype = 0 ; qtype < MAXQUOTAS; qtype++)
1689 if (*quota_sb_inump(fs->super, qtype))
1691 if (qtype == MAXQUOTAS) {
1692 ext2fs_clear_feature_quota(fs->super);
1698 ext2fs_mark_super_dirty(fs);
1702 static int option_handle_function(char *token)
1704 if (strncmp(token, "usr", 3) == 0) {
1705 quota_enable[USRQUOTA] = QOPT_ENABLE;
1706 } else if (strncmp(token, "^usr", 4) == 0) {
1707 quota_enable[USRQUOTA] = QOPT_DISABLE;
1708 } else if (strncmp(token, "grp", 3) == 0) {
1709 quota_enable[GRPQUOTA] = QOPT_ENABLE;
1710 } else if (strncmp(token, "^grp", 4) == 0) {
1711 quota_enable[GRPQUOTA] = QOPT_DISABLE;
1712 } else if (strncmp(token, "prj", 3) == 0) {
1713 quota_enable[PRJQUOTA] = QOPT_ENABLE;
1714 } else if (strncmp(token, "^prj", 4) == 0) {
1715 quota_enable[PRJQUOTA] = QOPT_DISABLE;
1717 fputs(_("\nBad quota options specified.\n\n"
1718 "Following valid quota options are available "
1719 "(pass by separating with comma):\n"
1729 static void parse_e2label_options(int argc, char ** argv)
1731 if ((argc < 2) || (argc > 3)) {
1732 fputs(_("Usage: e2label device [newlabel]\n"), stderr);
1735 io_options = strchr(argv[1], '?');
1738 device_name = blkid_get_devname(NULL, argv[1], NULL);
1740 com_err("e2label", 0, _("Unable to resolve '%s'"),
1744 open_flag = EXT2_FLAG_JOURNAL_DEV_OK;
1746 open_flag |= EXT2_FLAG_RW;
1748 new_label = argv[2];
1753 static time_t parse_time(char *str)
1757 if (strcmp(str, "now") == 0) {
1760 memset(&ts, 0, sizeof(ts));
1761 #ifdef HAVE_STRPTIME
1762 strptime(str, "%Y%m%d%H%M%S", &ts);
1764 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
1765 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
1768 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
1769 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
1770 ts.tm_min > 59 || ts.tm_sec > 61)
1773 if (ts.tm_mday == 0) {
1774 com_err(program_name, 0,
1775 _("Couldn't parse date/time specifier: %s"),
1780 return (mktime(&ts));
1783 static void parse_tune2fs_options(int argc, char **argv)
1790 char optstring[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:z:Q:";
1793 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
1794 while ((c = getopt(argc, argv, optstring)) != EOF)
1797 max_mount_count = strtol(optarg, &tmp, 0);
1798 if (*tmp || max_mount_count > 16000) {
1799 com_err(program_name, 0,
1800 _("bad mounts count - %s"),
1804 if (max_mount_count == 0)
1805 max_mount_count = -1;
1807 open_flag = EXT2_FLAG_RW;
1810 mount_count = strtoul(optarg, &tmp, 0);
1811 if (*tmp || mount_count > 16000) {
1812 com_err(program_name, 0,
1813 _("bad mounts count - %s"),
1818 open_flag = EXT2_FLAG_RW;
1821 if (strcmp(optarg, "continue") == 0)
1822 errors = EXT2_ERRORS_CONTINUE;
1823 else if (strcmp(optarg, "remount-ro") == 0)
1824 errors = EXT2_ERRORS_RO;
1825 else if (strcmp(optarg, "panic") == 0)
1826 errors = EXT2_ERRORS_PANIC;
1828 com_err(program_name, 0,
1829 _("bad error behavior - %s"),
1834 open_flag = EXT2_FLAG_RW;
1837 extended_cmd = optarg;
1838 open_flag |= EXT2_FLAG_RW;
1840 case 'f': /* Force */
1844 resgid = strtoul(optarg, &tmp, 0);
1846 gr = getgrnam(optarg);
1850 resgid = gr->gr_gid;
1855 com_err(program_name, 0,
1856 _("bad gid/group name - %s"),
1861 open_flag = EXT2_FLAG_RW;
1864 interval = strtoul(optarg, &tmp, 0);
1871 case 'D': /* days */
1877 case 'M': /* months! */
1878 interval *= 86400 * 30;
1882 case 'W': /* weeks */
1883 interval *= 86400 * 7;
1888 com_err(program_name, 0,
1889 _("bad interval - %s"), optarg);
1893 open_flag = EXT2_FLAG_RW;
1898 open_flag = EXT2_FLAG_RW;
1901 parse_journal_opts(optarg);
1902 open_flag = EXT2_FLAG_RW;
1910 open_flag |= EXT2_FLAG_RW |
1911 EXT2_FLAG_JOURNAL_DEV_OK;
1914 reserved_ratio = strtod(optarg, &tmp);
1915 if (*tmp || reserved_ratio > 50 ||
1916 reserved_ratio < 0) {
1917 com_err(program_name, 0,
1918 _("bad reserved block ratio - %s"),
1923 open_flag = EXT2_FLAG_RW;
1926 new_last_mounted = optarg;
1928 open_flag = EXT2_FLAG_RW;
1932 com_err(program_name, 0, "%s",
1933 _("-o may only be specified once"));
1936 mntopts_cmd = optarg;
1937 open_flag = EXT2_FLAG_RW;
1941 com_err(program_name, 0, "%s",
1942 _("-O may only be specified once"));
1945 features_cmd = optarg;
1946 open_flag = EXT2_FLAG_RW;
1950 ret = parse_quota_opts(optarg, option_handle_function);
1953 open_flag = EXT2_FLAG_RW;
1956 reserved_blocks = strtoul(optarg, &tmp, 0);
1958 com_err(program_name, 0,
1959 _("bad reserved blocks count - %s"),
1964 open_flag = EXT2_FLAG_RW;
1966 case 's': /* Deprecated */
1967 s_flag = atoi(optarg);
1968 open_flag = EXT2_FLAG_RW;
1972 last_check_time = parse_time(optarg);
1973 open_flag = EXT2_FLAG_RW;
1976 resuid = strtoul(optarg, &tmp, 0);
1978 pw = getpwnam(optarg);
1982 resuid = pw->pw_uid;
1987 com_err(program_name, 0,
1988 _("bad uid/user name - %s"),
1993 open_flag = EXT2_FLAG_RW;
1998 open_flag = EXT2_FLAG_RW |
1999 EXT2_FLAG_JOURNAL_DEV_OK;
2002 new_inode_size = strtoul(optarg, &tmp, 0);
2004 com_err(program_name, 0,
2005 _("bad inode size - %s"),
2009 if (!((new_inode_size &
2010 (new_inode_size - 1)) == 0)) {
2011 com_err(program_name, 0,
2012 _("Inode size must be a "
2013 "power of two- %s"),
2017 open_flag = EXT2_FLAG_RW;
2026 if (optind < argc - 1 || optind == argc)
2028 if (!open_flag && !l_flag)
2030 io_options = strchr(argv[optind], '?');
2033 device_name = blkid_get_devname(NULL, argv[optind], NULL);
2035 com_err(program_name, 0, _("Unable to resolve '%s'"),
2041 #ifdef CONFIG_BUILD_FINDFS
2042 void do_findfs(int argc, char **argv)
2047 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) {
2048 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
2051 dev = blkid_get_devname(NULL, argv[1], NULL);
2053 com_err("findfs", 0, _("Unable to resolve '%s'"),
2062 static int parse_extended_opts(ext2_filsys fs, const char *opts)
2064 char *buf, *token, *next, *p, *arg;
2069 buf = malloc(len+1);
2071 fprintf(stderr, "%s",
2072 _("Couldn't allocate memory to parse options!\n"));
2076 for (token = buf; token && *token; token = next) {
2077 p = strchr(token, ',');
2083 arg = strchr(token, '=');
2088 if (strcmp(token, "clear-mmp") == 0 ||
2089 strcmp(token, "clear_mmp") == 0) {
2091 } else if (strcmp(token, "mmp_update_interval") == 0) {
2097 intv = strtoul(arg, &p, 0);
2100 _("Invalid mmp_update_interval: %s\n"),
2106 intv = EXT4_MMP_UPDATE_INTERVAL;
2107 } else if (intv > EXT4_MMP_MAX_UPDATE_INTERVAL) {
2109 _("mmp_update_interval too big: %lu\n"),
2114 printf(P_("Setting multiple mount protection update "
2115 "interval to %lu second\n",
2116 "Setting multiple mount protection update "
2117 "interval to %lu seconds\n", intv),
2119 fs->super->s_mmp_update_interval = intv;
2120 ext2fs_mark_super_dirty(fs);
2121 } else if (!strcmp(token, "test_fs")) {
2122 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
2123 printf("Setting test filesystem flag\n");
2124 ext2fs_mark_super_dirty(fs);
2125 } else if (!strcmp(token, "^test_fs")) {
2126 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
2127 printf("Clearing test filesystem flag\n");
2128 ext2fs_mark_super_dirty(fs);
2129 } else if (strcmp(token, "stride") == 0) {
2134 stride = strtoul(arg, &p, 0);
2137 _("Invalid RAID stride: %s\n"),
2143 } else if (strcmp(token, "stripe-width") == 0 ||
2144 strcmp(token, "stripe_width") == 0) {
2149 stripe_width = strtoul(arg, &p, 0);
2152 _("Invalid RAID stripe-width: %s\n"),
2157 stripe_width_set = 1;
2158 } else if (strcmp(token, "hash_alg") == 0 ||
2159 strcmp(token, "hash-alg") == 0) {
2164 hash_alg = e2p_string2hash(arg);
2167 _("Invalid hash algorithm: %s\n"),
2172 fs->super->s_def_hash_version = hash_alg;
2173 printf(_("Setting default hash algorithm "
2176 ext2fs_mark_super_dirty(fs);
2177 } else if (!strcmp(token, "mount_opts")) {
2182 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) {
2184 "Extended mount options too long\n");
2187 ext_mount_opts = strdup(arg);
2192 fprintf(stderr, "%s", _("\nBad options specified.\n\n"
2193 "Extended options are separated by commas, "
2194 "and may take an argument which\n"
2195 "\tis set off by an equals ('=') sign.\n\n"
2196 "Valid extended options are:\n"
2198 "\thash_alg=<hash algorithm>\n"
2199 "\tmount_opts=<extended default mount options>\n"
2200 "\tmmp_update_interval=<mmp update interval in seconds>\n"
2201 "\tstride=<RAID per-disk chunk size in blocks>\n"
2202 "\tstripe_width=<RAID stride*data disks in blocks>\n"
2214 * Fill in the block bitmap bmap with the information regarding the
2215 * blocks to be moved
2217 static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp,
2218 ext2fs_block_bitmap bmap)
2222 ext2_badblocks_list bb_list = 0;
2223 blk64_t j, needed_blocks = 0;
2224 blk64_t start_blk, end_blk;
2226 retval = ext2fs_read_bb_inode(fs, &bb_list);
2230 for (i = 0; i < fs->group_desc_count; i++) {
2231 start_blk = ext2fs_inode_table_loc(fs, i) +
2232 fs->inode_blocks_per_group;
2234 end_blk = ext2fs_inode_table_loc(fs, i) +
2235 new_ino_blks_per_grp;
2237 for (j = start_blk; j < end_blk; j++) {
2238 if (ext2fs_test_block_bitmap2(fs->block_map, j)) {
2240 * IF the block is a bad block we fail
2242 if (ext2fs_badblocks_list_test(bb_list, j)) {
2243 ext2fs_badblocks_list_free(bb_list);
2247 ext2fs_mark_block_bitmap2(bmap, j);
2250 * We are going to use this block for
2251 * inode table. So mark them used.
2253 ext2fs_mark_block_bitmap2(fs->block_map, j);
2256 needed_blocks += end_blk - start_blk;
2259 ext2fs_badblocks_list_free(bb_list);
2260 if (needed_blocks > ext2fs_free_blocks_count(fs->super))
2266 static int ext2fs_is_meta_block(ext2_filsys fs, blk64_t blk)
2269 group = ext2fs_group_of_blk2(fs, blk);
2270 if (ext2fs_block_bitmap_loc(fs, group) == blk)
2272 if (ext2fs_inode_bitmap_loc(fs, group) == blk)
2277 static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk64_t blk)
2279 blk64_t start_blk, end_blk;
2280 start_blk = fs->super->s_first_data_block +
2281 EXT2_GROUPS_TO_BLOCKS(fs->super, group);
2283 * We cannot get new block beyond end_blk for for the last block group
2284 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group
2286 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super);
2287 if (blk >= start_blk && blk <= end_blk)
2292 static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
2299 blk64_t blk, new_blk, goal;
2300 struct blk_move *bmv;
2302 retval = ext2fs_get_mem(fs->blocksize, &buf);
2306 for (new_blk = blk = fs->super->s_first_data_block;
2307 blk < ext2fs_blocks_count(fs->super); blk++) {
2308 if (!ext2fs_test_block_bitmap2(bmap, blk))
2311 if (ext2fs_is_meta_block(fs, blk)) {
2313 * If the block is mapping a fs meta data block
2314 * like group desc/block bitmap/inode bitmap. We
2315 * should find a block in the same group and fix
2316 * the respective fs metadata pointers. Otherwise
2319 group = ext2fs_group_of_blk2(fs, blk);
2320 goal = ext2fs_group_first_block2(fs, group);
2326 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk);
2330 /* new fs meta data block should be in the same group */
2331 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) {
2336 /* Mark this block as allocated */
2337 ext2fs_mark_block_bitmap2(fs->block_map, new_blk);
2339 /* Add it to block move list */
2340 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
2345 bmv->new_loc = new_blk;
2347 list_add(&(bmv->list), &blk_move_list);
2349 retval = io_channel_read_blk64(fs->io, blk, 1, buf);
2353 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf);
2359 ext2fs_free_mem(&buf);
2363 static blk64_t translate_block(blk64_t blk)
2365 struct list_head *entry;
2366 struct blk_move *bmv;
2368 list_for_each(entry, &blk_move_list) {
2369 bmv = list_entry(entry, struct blk_move, list);
2370 if (bmv->old_loc == blk)
2371 return bmv->new_loc;
2377 static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
2379 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
2380 blk64_t ref_block EXT2FS_ATTR((unused)),
2381 int ref_offset EXT2FS_ATTR((unused)),
2386 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data;
2388 if (!ext2fs_test_block_bitmap2(bmap, *block_nr))
2390 new_blk = translate_block(*block_nr);
2392 *block_nr = new_blk;
2394 * This will force the ext2fs_write_inode in the iterator
2396 ret |= BLOCK_CHANGED;
2402 static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
2404 errcode_t retval = 0;
2407 char *block_buf = 0;
2408 struct ext2_inode inode;
2409 ext2_inode_scan scan = NULL;
2411 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf);
2415 retval = ext2fs_open_inode_scan(fs, 0, &scan);
2420 retval = ext2fs_get_next_inode(scan, &ino, &inode);
2427 if (inode.i_links_count == 0)
2428 continue; /* inode not in use */
2431 * If we end up modifying the journal inode
2432 * the sb->s_jnl_blocks will differ. But a
2433 * subsequent e2fsck fixes that.
2434 * Do we need to fix this ??
2437 if (ext2fs_file_acl_block(fs, &inode) &&
2438 ext2fs_test_block_bitmap2(bmap,
2439 ext2fs_file_acl_block(fs, &inode))) {
2440 blk = translate_block(ext2fs_file_acl_block(fs,
2445 ext2fs_file_acl_block_set(fs, &inode, blk);
2448 * Write the inode to disk so that inode table
2451 retval = ext2fs_write_inode(fs, ino, &inode);
2456 if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
2459 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf,
2460 process_block, bmap);
2467 ext2fs_free_mem(&block_buf);
2468 ext2fs_close_inode_scan(scan);
2474 * We need to scan for inode and block bitmaps that may need to be
2475 * moved. This can take place if the filesystem was formatted for
2476 * RAID arrays using the mke2fs's extended option "stride".
2478 static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
2481 blk64_t blk, new_blk;
2483 for (i = 0; i < fs->group_desc_count; i++) {
2484 blk = ext2fs_block_bitmap_loc(fs, i);
2485 if (ext2fs_test_block_bitmap2(bmap, blk)) {
2486 new_blk = translate_block(blk);
2489 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
2492 blk = ext2fs_inode_bitmap_loc(fs, i);
2493 if (ext2fs_test_block_bitmap2(bmap, blk)) {
2494 new_blk = translate_block(blk);
2497 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
2503 static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
2508 int new_ino_blks_per_grp;
2510 char *old_itable = NULL, *new_itable = NULL;
2511 char *tmp_old_itable = NULL, *tmp_new_itable = NULL;
2512 unsigned long old_ino_size;
2513 int old_itable_size, new_itable_size;
2515 old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
2516 old_ino_size = EXT2_INODE_SIZE(fs->super);
2518 new_ino_blks_per_grp = ext2fs_div_ceil(
2519 EXT2_INODES_PER_GROUP(fs->super) *
2523 new_itable_size = new_ino_blks_per_grp * fs->blocksize;
2525 retval = ext2fs_get_mem(old_itable_size, &old_itable);
2529 retval = ext2fs_get_mem(new_itable_size, &new_itable);
2533 tmp_old_itable = old_itable;
2534 tmp_new_itable = new_itable;
2536 for (i = 0; i < fs->group_desc_count; i++) {
2537 blk = ext2fs_inode_table_loc(fs, i);
2538 retval = io_channel_read_blk64(fs->io, blk,
2539 fs->inode_blocks_per_group, old_itable);
2543 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) {
2544 memcpy(new_itable, old_itable, old_ino_size);
2546 memset(new_itable+old_ino_size, 0,
2547 new_ino_size - old_ino_size);
2549 new_itable += new_ino_size;
2550 old_itable += old_ino_size;
2553 /* reset the pointer */
2554 old_itable = tmp_old_itable;
2555 new_itable = tmp_new_itable;
2557 retval = io_channel_write_blk64(fs->io, blk,
2558 new_ino_blks_per_grp, new_itable);
2563 /* Update the meta data */
2564 fs->inode_blocks_per_group = new_ino_blks_per_grp;
2565 ext2fs_free_inode_cache(fs->icache);
2567 fs->super->s_inode_size = new_ino_size;
2571 ext2fs_free_mem(&old_itable);
2574 ext2fs_free_mem(&new_itable);
2579 static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
2583 unsigned int group = 0;
2584 unsigned int count = 0;
2589 * First calculate the block statistics
2591 for (blk = fs->super->s_first_data_block;
2592 blk < ext2fs_blocks_count(fs->super); blk++) {
2593 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) {
2598 if ((count == fs->super->s_blocks_per_group) ||
2599 (blk == ext2fs_blocks_count(fs->super)-1)) {
2600 ext2fs_bg_free_blocks_count_set(fs, group++,
2606 total_free = EXT2FS_C2B(fs, total_free);
2607 ext2fs_free_blocks_count_set(fs->super, total_free);
2610 * Next, calculate the inode statistics
2617 /* Protect loop from wrap-around if s_inodes_count maxed */
2618 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
2619 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) {
2624 if ((count == fs->super->s_inodes_per_group) ||
2625 (ino == fs->super->s_inodes_count)) {
2626 ext2fs_bg_free_inodes_count_set(fs, group++,
2632 fs->super->s_free_inodes_count = total_free;
2633 ext2fs_mark_super_dirty(fs);
2637 #define list_for_each_safe(pos, pnext, head) \
2638 for (pos = (head)->next, pnext = pos->next; pos != (head); \
2639 pos = pnext, pnext = pos->next)
2641 static void free_blk_move_list(void)
2643 struct list_head *entry, *tmp;
2644 struct blk_move *bmv;
2646 list_for_each_safe(entry, tmp, &blk_move_list) {
2647 bmv = list_entry(entry, struct blk_move, list);
2649 ext2fs_free_mem(&bmv);
2654 static int resize_inode(ext2_filsys fs, unsigned long new_size)
2657 int new_ino_blks_per_grp;
2658 ext2fs_block_bitmap bmap;
2660 retval = ext2fs_read_inode_bitmap(fs);
2662 fputs(_("Failed to read inode bitmap\n"), stderr);
2665 retval = ext2fs_read_block_bitmap(fs);
2667 fputs(_("Failed to read block bitmap\n"), stderr);
2670 INIT_LIST_HEAD(&blk_move_list);
2673 new_ino_blks_per_grp = ext2fs_div_ceil(
2674 EXT2_INODES_PER_GROUP(fs->super)*
2678 /* We may change the file system.
2679 * Mark the file system as invalid so that
2680 * the user is prompted to run fsck.
2682 fs->super->s_state &= ~EXT2_VALID_FS;
2684 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
2687 fputs(_("Failed to allocate block bitmap when "
2688 "increasing inode size\n"), stderr);
2691 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap);
2693 fputs(_("Not enough space to increase inode size \n"), stderr);
2696 retval = move_block(fs, bmap);
2698 fputs(_("Failed to relocate blocks during inode resize \n"),
2702 retval = inode_scan_and_fix(fs, bmap);
2706 retval = group_desc_scan_and_fix(fs, bmap);
2710 retval = expand_inode_table(fs, new_size);
2714 ext2fs_calculate_summary_stats(fs);
2716 fs->super->s_state |= EXT2_VALID_FS;
2717 /* mark super block and block bitmap as dirty */
2718 ext2fs_mark_super_dirty(fs);
2719 ext2fs_mark_bb_dirty(fs);
2722 free_blk_move_list();
2723 ext2fs_free_block_bitmap(bmap);
2728 free_blk_move_list();
2729 ext2fs_free_block_bitmap(bmap);
2730 fputs(_("Error in resizing the inode size.\n"
2731 "Run e2undo to undo the "
2732 "file system changes. \n"), stderr);
2737 static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
2739 errcode_t retval = 0;
2740 const char *tdb_dir;
2741 char *tdb_file = NULL;
2742 char *dev_name, *tmp_name;
2744 /* (re)open a specific undo file */
2745 if (undo_file && undo_file[0] != 0) {
2746 retval = set_undo_io_backing_manager(*io_ptr);
2749 *io_ptr = undo_io_manager;
2750 retval = set_undo_io_backup_file(undo_file);
2753 printf(_("Overwriting existing filesystem; this can be undone "
2754 "using the command:\n"
2755 " e2undo %s %s\n\n"),
2761 * Configuration via a conf file would be
2764 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2766 tdb_dir = "/var/lib/e2fsprogs";
2768 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2769 access(tdb_dir, W_OK))
2772 tmp_name = strdup(name);
2775 dev_name = basename(tmp_name);
2776 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
2781 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
2784 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2786 com_err(program_name, retval,
2787 _("while trying to delete %s"), tdb_file);
2791 retval = set_undo_io_backing_manager(*io_ptr);
2794 *io_ptr = undo_io_manager;
2795 retval = set_undo_io_backup_file(tdb_file);
2798 printf(_("Overwriting existing filesystem; this can be undone "
2799 "using the command:\n"
2800 " e2undo %s %s\n\n"),
2808 com_err("tune2fs", retval, "while trying to setup undo file\n");
2813 fs_update_journal_user(struct ext2_super_block *sb, __u8 old_uuid[UUID_SIZE])
2815 int retval, nr_users, start;
2816 journal_superblock_t *jsb;
2820 char uuid[UUID_STR_SIZE];
2821 char buf[SUPERBLOCK_SIZE] __attribute__ ((aligned(8)));
2823 if (!ext2fs_has_feature_journal(sb) || uuid_is_null(sb->s_journal_uuid))
2826 uuid_unparse(sb->s_journal_uuid, uuid);
2827 journal_path = blkid_get_devname(NULL, "UUID", uuid);
2831 retval = ext2fs_open2(journal_path, io_options,
2832 EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_RW,
2833 0, 0, unix_io_manager, &jfs);
2835 com_err(program_name, retval,
2836 _("while trying to open %s"),
2841 retval = get_journal_sb(jfs, buf);
2843 if (retval == EXT2_ET_UNSUPP_FEATURE)
2844 fprintf(stderr, _("%s is not a journal device.\n"),
2849 jsb = (journal_superblock_t *) buf;
2850 /* Find the filesystem UUID */
2851 nr_users = ntohl(jsb->s_nr_users);
2853 j_uuid = journal_user(old_uuid, jsb->s_users, nr_users);
2854 if (j_uuid == NULL) {
2855 fputs(_("Filesystem's UUID not found on journal device.\n"),
2857 return EXT2_ET_LOAD_EXT_JOURNAL;
2860 memcpy(j_uuid, sb->s_uuid, UUID_SIZE);
2862 start = ext2fs_journal_sb_start(jfs->blocksize);
2863 /* Write back the journal superblock */
2864 retval = io_channel_write_blk64(jfs->io, start, -SUPERBLOCK_SIZE, buf);
2866 com_err(program_name, retval,
2867 "while writing journal superblock.");
2876 #ifndef BUILD_AS_LIB
2877 int main(int argc, char **argv)
2879 int tune2fs_main(int argc, char **argv)
2880 #endif /* BUILD_AS_LIB */
2884 struct ext2_super_block *sb;
2885 io_manager io_ptr, io_ptr_orig = NULL;
2887 char default_undo_file[1] = { 0 };
2890 setlocale(LC_MESSAGES, "");
2891 setlocale(LC_CTYPE, "");
2892 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2893 textdomain(NLS_CAT_NAME);
2894 set_com_err_gettext(gettext);
2897 program_name = *argv;
2898 add_error_table(&et_ext2_error_table);
2900 #ifdef CONFIG_BUILD_FINDFS
2901 if (strcmp(get_progname(argv[0]), "findfs") == 0)
2902 do_findfs(argc, argv);
2904 if (strcmp(get_progname(argv[0]), "e2label") == 0)
2905 parse_e2label_options(argc, argv);
2907 parse_tune2fs_options(argc, argv);
2909 #ifdef CONFIG_TESTIO_DEBUG
2910 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) {
2911 io_ptr = test_io_manager;
2912 test_io_backing_manager = unix_io_manager;
2915 io_ptr = unix_io_manager;
2918 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag)
2919 open_flag |= EXT2_FLAG_SKIP_MMP;
2921 open_flag |= EXT2_FLAG_64BITS | EXT2_FLAG_JOURNAL_DEV_OK;
2923 /* keep the filesystem struct around to dump MMP data */
2924 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR;
2926 retval = ext2fs_open2(device_name, io_options, open_flag,
2929 com_err(program_name, retval,
2930 _("while trying to open %s"),
2932 if (retval == EXT2_ET_MMP_FSCK_ON ||
2933 retval == EXT2_ET_MMP_UNKNOWN_SEQ)
2934 dump_mmp_msg(fs->mmp_buf,
2935 _("If you are sure the filesystem "
2936 "is not in use on any node, run:\n"
2937 "'tune2fs -f -E clear_mmp {device}'\n"));
2938 else if (retval == EXT2_ET_MMP_FAILED)
2939 dump_mmp_msg(fs->mmp_buf, NULL);
2940 else if (retval == EXT2_ET_MMP_MAGIC_INVALID)
2942 _("MMP block magic is bad. Try to fix it by "
2943 "running:\n'e2fsck -f %s'\n"), device_name);
2944 else if (retval == EXT2_ET_BAD_MAGIC)
2945 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
2946 else if (retval != EXT2_ET_MMP_FAILED)
2947 fprintf(stderr, "%s",
2948 _("Couldn't find valid filesystem superblock.\n"));
2953 if (ext2fs_has_feature_journal_dev(fs->super)) {
2954 fprintf(stderr, "%s", _("Cannot modify a journal device.\n"));
2958 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
2962 * Check the inode size is right so we can issue an
2963 * error message and bail before setting up the tdb
2966 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) {
2967 fprintf(stderr, _("The inode size is already %lu\n"),
2972 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
2973 fprintf(stderr, "%s",
2974 _("Shrinking inode size is not supported\n"));
2978 if (new_inode_size > fs->blocksize) {
2979 fprintf(stderr, _("Invalid inode size %lu (max %d)\n"),
2980 new_inode_size, fs->blocksize);
2984 check_fsck_needed(fs,
2985 _("Resizing inodes could take some time."));
2987 * If inode resize is requested use the
2990 undo_file = default_undo_file;
2993 /* Set up an undo file */
2994 if (undo_file && io_ptr_orig == NULL) {
2995 io_ptr_orig = io_ptr;
2996 retval = tune2fs_setup_tdb(device_name, &io_ptr);
3001 if (io_ptr != io_ptr_orig) {
3002 ext2fs_close_free(&fs);
3008 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
3011 /* For e2label emulation */
3012 printf("%.*s\n", (int) sizeof(sb->s_volume_name),
3014 remove_error_table(&et_ext2_error_table);
3018 retval = ext2fs_check_if_mounted(device_name, &mount_flags);
3020 com_err("ext2fs_check_if_mount", retval,
3021 _("while determining whether %s is mounted."),
3028 /* Warn if file system needs recovery and it is opened for writing. */
3029 if ((open_flag & EXT2_FLAG_RW) && !(mount_flags & EXT2_MF_MOUNTED) &&
3030 (sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
3031 (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER)) {
3033 _("Warning: The journal is dirty. You may wish to replay the journal like:\n\n"
3034 "\te2fsck -E journal_only %s\n\n"
3035 "then rerun this command. Otherwise, any changes made may be overwritten\n"
3036 "by journal recovery.\n"), device_name);
3039 /* Recover the journal if possible. */
3040 if ((open_flag & EXT2_FLAG_RW) && !(mount_flags & (EXT2_MF_BUSY | EXT2_MF_MOUNTED)) &&
3041 ext2fs_has_feature_journal_needs_recovery(fs->super)) {
3044 printf(_("Recovering journal.\n"));
3045 err = ext2fs_run_ext3_journal(&fs);
3047 com_err("tune2fs", err, "while recovering journal.\n");
3048 printf(_("Please run e2fsck -fy %s.\n"), argv[1]);
3050 ext2fs_close_free(&fs);
3056 /* Normally we only need to write out the superblock */
3057 fs->flags |= EXT2_FLAG_SUPER_ONLY;
3060 sb->s_max_mnt_count = max_mount_count;
3061 ext2fs_mark_super_dirty(fs);
3062 printf(_("Setting maximal mount count to %d\n"),
3066 sb->s_mnt_count = mount_count;
3067 ext2fs_mark_super_dirty(fs);
3068 printf(_("Setting current mount count to %d\n"), mount_count);
3071 sb->s_errors = errors;
3072 ext2fs_mark_super_dirty(fs);
3073 printf(_("Setting error behavior to %d\n"), errors);
3076 sb->s_def_resgid = resgid;
3077 ext2fs_mark_super_dirty(fs);
3078 printf(_("Setting reserved blocks gid to %lu\n"), resgid);
3081 if ((unsigned long long)interval >= (1ULL << 32)) {
3082 com_err(program_name, 0,
3083 _("interval between checks is too big (%lu)"),
3088 sb->s_checkinterval = interval;
3089 ext2fs_mark_super_dirty(fs);
3090 printf(_("Setting interval between checks to %lu seconds\n"),
3094 ext2fs_r_blocks_count_set(sb, reserved_ratio *
3095 ext2fs_blocks_count(sb) / 100.0);
3096 ext2fs_mark_super_dirty(fs);
3097 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"),
3098 reserved_ratio, ext2fs_r_blocks_count(sb));
3101 if (reserved_blocks > ext2fs_blocks_count(sb)/2) {
3102 com_err(program_name, 0,
3103 _("reserved blocks count is too big (%llu)"),
3108 ext2fs_r_blocks_count_set(sb, reserved_blocks);
3109 ext2fs_mark_super_dirty(fs);
3110 printf(_("Setting reserved blocks count to %llu\n"),
3114 if (ext2fs_has_feature_sparse_super(sb)) {
3115 fputs(_("\nThe filesystem already has sparse "
3116 "superblocks.\n"), stderr);
3117 } else if (ext2fs_has_feature_meta_bg(sb)) {
3118 fputs(_("\nSetting the sparse superblock flag not "
3119 "supported\nfor filesystems with "
3120 "the meta_bg feature enabled.\n"),
3125 ext2fs_set_feature_sparse_super(sb);
3126 sb->s_state &= ~EXT2_VALID_FS;
3127 ext2fs_mark_super_dirty(fs);
3128 printf(_("\nSparse superblock flag set. %s"),
3133 fputs(_("\nClearing the sparse superblock flag not supported.\n"),
3139 sb->s_lastcheck = last_check_time;
3140 ext2fs_mark_super_dirty(fs);
3141 printf(_("Setting time filesystem last checked to %s\n"),
3142 ctime(&last_check_time));
3145 sb->s_def_resuid = resuid;
3146 ext2fs_mark_super_dirty(fs);
3147 printf(_("Setting reserved blocks uid to %lu\n"), resuid);
3150 if (strlen(new_label) > sizeof(sb->s_volume_name))
3151 fputs(_("Warning: label too long, truncating.\n"),
3153 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
3154 strncpy(sb->s_volume_name, new_label,
3155 sizeof(sb->s_volume_name));
3156 ext2fs_mark_super_dirty(fs);
3159 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
3160 strncpy(sb->s_last_mounted, new_last_mounted,
3161 sizeof(sb->s_last_mounted));
3162 ext2fs_mark_super_dirty(fs);
3165 rc = update_mntopts(fs, mntopts_cmd);
3170 rc = update_feature_set(fs, features_cmd);
3175 rc = parse_extended_opts(fs, extended_cmd);
3178 if (clear_mmp && !f_flag) {
3179 fputs(_("Error in using clear_mmp. "
3180 "It must be used with -f\n"),
3186 rc = ext2fs_mmp_clear(fs);
3189 if (journal_size || journal_device) {
3190 rc = add_journal(fs);
3196 if (mount_flags & EXT2_MF_MOUNTED) {
3197 fputs(_("The quota feature may only be changed when "
3198 "the filesystem is unmounted.\n"), stderr);
3202 handle_quota_options(fs);
3208 char buf[SUPERBLOCK_SIZE] __attribute__ ((aligned(8)));
3209 __u8 old_uuid[UUID_SIZE];
3211 if (ext2fs_has_group_desc_csum(fs)) {
3213 * Changing the UUID on a metadata_csum FS requires
3214 * rewriting all metadata, which can race with a
3215 * mounted fs. Don't allow that unless we're saving
3216 * the checksum seed.
3218 if ((mount_flags & EXT2_MF_MOUNTED) &&
3219 !ext2fs_has_feature_csum_seed(fs->super) &&
3220 ext2fs_has_feature_metadata_csum(fs->super)) {
3221 fputs(_("The UUID may only be "
3222 "changed when the filesystem is "
3223 "unmounted.\n"), stderr);
3224 fputs(_("If you only use kernels newer than "
3225 "v4.4, run 'tune2fs -O "
3226 "metadata_csum_seed' and re-run this "
3227 "command.\n"), stderr);
3228 try_confirm_csum_seed_support();
3231 if (!ext2fs_has_feature_csum_seed(fs->super))
3232 check_fsck_needed(fs,
3233 _("Setting UUID on a checksummed "
3234 "filesystem could take some time."));
3237 * Determine if the block group checksums are
3238 * correct so we know whether or not to set
3241 for (i = 0; i < fs->group_desc_count; i++)
3242 if (!ext2fs_group_desc_csum_verify(fs, i))
3244 if (i >= fs->group_desc_count)
3248 memcpy(old_uuid, sb->s_uuid, UUID_SIZE);
3249 if ((strcasecmp(new_UUID, "null") == 0) ||
3250 (strcasecmp(new_UUID, "clear") == 0)) {
3251 uuid_clear(sb->s_uuid);
3252 } else if (strcasecmp(new_UUID, "time") == 0) {
3253 uuid_generate_time(sb->s_uuid);
3254 } else if (strcasecmp(new_UUID, "random") == 0) {
3255 uuid_generate(sb->s_uuid);
3256 } else if (uuid_parse(new_UUID, sb->s_uuid)) {
3257 com_err(program_name, 0, "%s",
3258 _("Invalid UUID format\n"));
3262 ext2fs_init_csum_seed(fs);
3264 for (i = 0; i < fs->group_desc_count; i++)
3265 ext2fs_group_desc_csum_set(fs, i);
3266 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
3269 /* If this is a journal dev, we need to copy UUID into jsb */
3270 if (!(rc = get_journal_sb(fs, buf))) {
3271 journal_superblock_t *jsb;
3273 jsb = (journal_superblock_t *) buf;
3274 fputs(_("Need to update journal superblock.\n"), stdout);
3275 memcpy(jsb->s_uuid, sb->s_uuid, sizeof(sb->s_uuid));
3277 /* Writeback the journal superblock */
3278 if ((rc = io_channel_write_blk64(fs->io,
3279 ext2fs_journal_sb_start(fs->blocksize),
3280 -SUPERBLOCK_SIZE, buf)))
3282 } else if (rc != EXT2_ET_UNSUPP_FEATURE)
3285 rc = 0; /** Reset rc to avoid ext2fs_mmp_stop() */
3287 if ((rc = fs_update_journal_user(sb, old_uuid)))
3291 ext2fs_mark_super_dirty(fs);
3292 if (!ext2fs_has_feature_csum_seed(fs->super) &&
3293 (ext2fs_has_feature_metadata_csum(fs->super) ||
3294 ext2fs_has_feature_ea_inode(fs->super)))
3295 rewrite_checksums = 1;
3299 if (mount_flags & EXT2_MF_MOUNTED) {
3300 fputs(_("The inode size may only be "
3301 "changed when the filesystem is "
3302 "unmounted.\n"), stderr);
3306 if (ext2fs_has_feature_flex_bg(fs->super)) {
3307 fputs(_("Changing the inode size not supported for "
3308 "filesystems with the flex_bg\n"
3309 "feature enabled.\n"),
3315 * We want to update group descriptor also
3316 * with the new free inode count
3318 if (rewrite_checksums)
3319 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3320 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
3321 retval = resize_inode(fs, new_inode_size);
3322 if (rewrite_checksums)
3323 fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
3325 printf(_("Setting inode size %lu\n"),
3327 rewrite_checksums = 1;
3329 printf("%s", _("Failed to change inode size\n"));
3335 if (rewrite_checksums)
3336 rewrite_metadata_checksums(fs);
3341 sb->s_raid_stride = stride;
3342 ext2fs_mark_super_dirty(fs);
3343 printf(_("Setting stride size to %d\n"), stride);
3345 if (stripe_width_set) {
3346 sb->s_raid_stripe_width = stripe_width;
3347 ext2fs_mark_super_dirty(fs);
3348 printf(_("Setting stripe width to %d\n"), stripe_width);
3350 if (ext_mount_opts) {
3351 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts,
3352 sizeof(fs->super->s_mount_opts));
3353 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0;
3354 ext2fs_mark_super_dirty(fs);
3355 printf(_("Setting extended default mount options to '%s'\n"),
3357 free(ext_mount_opts);
3361 remove_error_table(&et_ext2_error_table);
3365 ext2fs_mmp_stop(fs);
3366 #ifndef BUILD_AS_LIB
3372 convert_64bit(fs, feature_64bit);
3373 return (ext2fs_close_free(&fs) ? 1 : 0);