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 |
153 EXT4_FEATURE_COMPAT_FAST_COMMIT |
154 EXT4_FEATURE_COMPAT_STABLE_INODES,
156 EXT2_FEATURE_INCOMPAT_FILETYPE |
157 EXT3_FEATURE_INCOMPAT_EXTENTS |
158 EXT4_FEATURE_INCOMPAT_FLEX_BG |
159 EXT4_FEATURE_INCOMPAT_EA_INODE|
160 EXT4_FEATURE_INCOMPAT_MMP |
161 EXT4_FEATURE_INCOMPAT_64BIT |
162 EXT4_FEATURE_INCOMPAT_ENCRYPT |
163 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
164 EXT4_FEATURE_INCOMPAT_LARGEDIR,
166 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
167 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
168 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
169 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
170 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
171 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER |
172 EXT4_FEATURE_RO_COMPAT_QUOTA |
173 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM |
174 EXT4_FEATURE_RO_COMPAT_READONLY |
175 EXT4_FEATURE_RO_COMPAT_PROJECT |
176 EXT4_FEATURE_RO_COMPAT_VERITY
179 static __u32 clear_ok_features[3] = {
181 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
182 EXT2_FEATURE_COMPAT_RESIZE_INODE |
183 EXT2_FEATURE_COMPAT_DIR_INDEX |
184 EXT4_FEATURE_COMPAT_FAST_COMMIT,
186 EXT2_FEATURE_INCOMPAT_FILETYPE |
187 EXT4_FEATURE_INCOMPAT_FLEX_BG |
188 EXT4_FEATURE_INCOMPAT_MMP |
189 EXT4_FEATURE_INCOMPAT_64BIT |
190 EXT4_FEATURE_INCOMPAT_CSUM_SEED,
192 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
193 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
194 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
195 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
196 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
197 EXT4_FEATURE_RO_COMPAT_QUOTA |
198 EXT4_FEATURE_RO_COMPAT_PROJECT |
199 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM |
200 EXT4_FEATURE_RO_COMPAT_READONLY
204 * Try to get journal super block if any
206 static int get_journal_sb(ext2_filsys jfs, char buf[SUPERBLOCK_SIZE])
209 journal_superblock_t *jsb;
211 if (!ext2fs_has_feature_journal_dev(jfs->super)) {
212 return EXT2_ET_UNSUPP_FEATURE;
215 /* Get the journal superblock */
216 if ((retval = io_channel_read_blk64(jfs->io,
217 ext2fs_journal_sb_start(jfs->blocksize), -SUPERBLOCK_SIZE, buf))) {
218 com_err(program_name, retval, "%s",
219 _("while reading journal superblock"));
223 jsb = (journal_superblock_t *) buf;
224 if ((jsb->s_header.h_magic != (unsigned)ntohl(JBD2_MAGIC_NUMBER)) ||
225 (jsb->s_header.h_blocktype != (unsigned)ntohl(JBD2_SUPERBLOCK_V2))) {
226 fputs(_("Journal superblock not found!\n"), stderr);
227 return EXT2_ET_BAD_MAGIC;
233 static __u8 *journal_user(__u8 uuid[UUID_SIZE], __u8 s_users[JBD2_USERS_SIZE],
237 for (i = 0; i < nr_users; i++) {
238 if (memcmp(uuid, &s_users[i * UUID_SIZE], UUID_SIZE) == 0)
239 return &s_users[i * UUID_SIZE];
246 * Remove an external journal from the filesystem
248 static int remove_journal_device(ext2_filsys fs)
252 char buf[SUPERBLOCK_SIZE] __attribute__ ((aligned(8)));
253 journal_superblock_t *jsb;
256 int commit_remove_journal = 0;
260 commit_remove_journal = 1; /* force removal even if error */
262 uuid_unparse(fs->super->s_journal_uuid, buf);
263 journal_path = blkid_get_devname(NULL, "UUID", buf);
267 ext2fs_find_block_device(fs->super->s_journal_dev);
269 goto no_valid_journal;
272 #ifdef CONFIG_TESTIO_DEBUG
273 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
274 io_ptr = test_io_manager;
275 test_io_backing_manager = unix_io_manager;
278 io_ptr = unix_io_manager;
279 retval = ext2fs_open(journal_path, EXT2_FLAG_RW|
280 EXT2_FLAG_JOURNAL_DEV_OK, 0,
281 fs->blocksize, io_ptr, &jfs);
283 com_err(program_name, retval, "%s",
284 _("while trying to open external journal"));
285 goto no_valid_journal;
288 if ((retval = get_journal_sb(jfs, buf))) {
289 if (retval == EXT2_ET_UNSUPP_FEATURE)
290 fprintf(stderr, _("%s is not a journal device.\n"),
292 goto no_valid_journal;
295 jsb = (journal_superblock_t *) buf;
296 /* Find the filesystem UUID */
297 nr_users = ntohl(jsb->s_nr_users);
298 if (nr_users > JBD2_USERS_MAX) {
299 fprintf(stderr, _("Journal superblock is corrupted, nr_users\n"
300 "is too high (%d).\n"), nr_users);
301 commit_remove_journal = 1;
302 goto no_valid_journal;
305 if (!journal_user(fs->super->s_uuid, jsb->s_users, nr_users)) {
306 fputs(_("Filesystem's UUID not found on journal device.\n"),
308 commit_remove_journal = 1;
309 goto no_valid_journal;
312 for (i = 0; i < nr_users; i++)
313 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16);
314 jsb->s_nr_users = htonl(nr_users);
316 /* Write back the journal superblock */
317 retval = io_channel_write_blk64(jfs->io,
318 ext2fs_journal_sb_start(fs->blocksize),
319 -SUPERBLOCK_SIZE, buf);
321 com_err(program_name, retval,
322 "while writing journal superblock.");
323 goto no_valid_journal;
326 commit_remove_journal = 1;
329 if (commit_remove_journal == 0) {
330 fputs(_("Cannot locate journal device. It was NOT removed\n"
331 "Use -f option to remove missing journal device.\n"),
335 fs->super->s_journal_dev = 0;
336 memset(fs->super->s_jnl_blocks, 0, sizeof(fs->super->s_jnl_blocks));
337 uuid_clear(fs->super->s_journal_uuid);
338 ext2fs_mark_super_dirty(fs);
339 fputs(_("Journal removed\n"), stdout);
345 /* Helper function for remove_journal_inode */
346 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
347 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
348 blk64_t ref_block EXT2FS_ATTR((unused)),
349 int ref_offset EXT2FS_ATTR((unused)),
350 void *private EXT2FS_ATTR((unused)))
356 ext2fs_unmark_block_bitmap2(fs->block_map, block);
357 group = ext2fs_group_of_blk2(fs, block);
358 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
359 ext2fs_group_desc_csum_set(fs, group);
360 ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs));
365 * Remove the journal inode from the filesystem
367 static errcode_t remove_journal_inode(ext2_filsys fs)
369 struct ext2_inode inode;
371 ext2_ino_t ino = fs->super->s_journal_inum;
373 retval = ext2fs_read_inode(fs, ino, &inode);
375 com_err(program_name, retval, "%s",
376 _("while reading journal inode"));
379 if (ino == EXT2_JOURNAL_INO) {
380 retval = ext2fs_read_bitmaps(fs);
382 com_err(program_name, retval, "%s",
383 _("while reading bitmaps"));
386 retval = ext2fs_block_iterate3(fs, ino,
387 BLOCK_FLAG_READ_ONLY, NULL,
388 release_blocks_proc, NULL);
390 com_err(program_name, retval, "%s",
391 _("while clearing journal inode"));
394 memset(&inode, 0, sizeof(inode));
395 ext2fs_mark_bb_dirty(fs);
396 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
398 inode.i_flags &= ~EXT2_IMMUTABLE_FL;
399 retval = ext2fs_write_inode(fs, ino, &inode);
401 com_err(program_name, retval, "%s",
402 _("while writing journal inode"));
405 fs->super->s_journal_inum = 0;
406 memset(fs->super->s_jnl_blocks, 0, sizeof(fs->super->s_jnl_blocks));
407 ext2fs_mark_super_dirty(fs);
413 * Update the default mount options
415 static int update_mntopts(ext2_filsys fs, char *mntopts)
417 struct ext2_super_block *sb = fs->super;
419 if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) {
420 fprintf(stderr, _("Invalid mount option set: %s\n"),
424 ext2fs_mark_super_dirty(fs);
429 static void check_fsck_needed(ext2_filsys fs, const char *prompt)
431 /* Refuse to modify anything but a freshly checked valid filesystem. */
432 if (!(fs->super->s_state & EXT2_VALID_FS) ||
433 (fs->super->s_state & EXT2_ERROR_FS) ||
434 (fs->super->s_lastcheck < fs->super->s_mtime)) {
435 puts(_(fsck_explain));
436 puts(_(please_fsck));
437 if (mount_flags & EXT2_MF_READONLY)
438 printf("%s", _("(and reboot afterwards!)\n"));
442 /* Give the admin a few seconds to bail out of a dangerous op. */
443 if (!getenv("TUNE2FS_FORCE_PROMPT") && (!isatty(0) || !isatty(1)))
450 static void request_dir_fsck_afterwards(ext2_filsys fs)
452 static int requested;
457 fs->super->s_state &= ~EXT2_VALID_FS;
458 puts(_(fsck_explain));
459 puts(_(please_dir_fsck));
460 if (mount_flags & EXT2_MF_READONLY)
461 printf("%s", _("(and reboot afterwards!)\n"));
464 static void request_fsck_afterwards(ext2_filsys fs)
466 static int requested = 0;
471 fs->super->s_state &= ~EXT2_VALID_FS;
472 printf("\n%s\n", _(please_fsck));
473 if (mount_flags & EXT2_MF_READONLY)
474 printf("%s", _("(and reboot afterwards!)\n"));
477 static void convert_64bit(ext2_filsys fs, int direction)
480 * Is resize2fs going to demand a fsck run? Might as well tell the
483 if (!fsck_requested &&
484 ((fs->super->s_state & EXT2_ERROR_FS) ||
485 !(fs->super->s_state & EXT2_VALID_FS) ||
486 fs->super->s_lastcheck < fs->super->s_mtime))
487 request_fsck_afterwards(fs);
489 fprintf(stderr, _("After running e2fsck, please run `resize2fs %s %s"),
490 direction > 0 ? "-b" : "-s", fs->device_name);
492 fprintf(stderr, _("Please run `resize2fs %s %s"),
493 direction > 0 ? "-b" : "-s", fs->device_name);
496 fprintf(stderr, _(" -z \"%s\""), undo_file);
498 fprintf(stderr, _("' to enable 64-bit mode.\n"));
500 fprintf(stderr, _("' to disable 64-bit mode.\n"));
504 * Rewrite directory blocks with checksums
506 struct rewrite_dir_context {
514 static int rewrite_dir_block(ext2_filsys fs,
516 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
517 blk64_t ref_block EXT2FS_ATTR((unused)),
518 int ref_offset EXT2FS_ATTR((unused)),
521 struct ext2_dx_countlimit *dcl = NULL;
522 struct rewrite_dir_context *ctx = priv_data;
523 int dcl_offset, changed = 0;
525 ctx->errcode = ext2fs_read_dir_block4(fs, *blocknr, ctx->buf, 0,
531 * if htree node... Note that if we are clearing htree structures from
532 * the directory, we treat the htree internal block as an ordinary leaf.
533 * The code below will do the right thing and make space for checksum
536 if (ctx->is_htree && !ctx->clear_htree)
537 ext2fs_get_dx_countlimit(fs, (struct ext2_dir_entry *)ctx->buf,
540 if (!ext2fs_has_feature_metadata_csum(fs->super)) {
541 /* Ensure limit is the max size */
542 int max_entries = (fs->blocksize - dcl_offset) /
543 sizeof(struct ext2_dx_entry);
544 if (ext2fs_le16_to_cpu(dcl->limit) != max_entries) {
546 dcl->limit = ext2fs_cpu_to_le16(max_entries);
549 /* If htree block is full then rebuild the dir */
550 if (ext2fs_le16_to_cpu(dcl->count) ==
551 ext2fs_le16_to_cpu(dcl->limit)) {
552 request_dir_fsck_afterwards(fs);
556 * Ensure dcl->limit is small enough to leave room for
559 int max_entries = (fs->blocksize - (dcl_offset +
560 sizeof(struct ext2_dx_tail))) /
561 sizeof(struct ext2_dx_entry);
562 if (ext2fs_le16_to_cpu(dcl->limit) != max_entries)
563 dcl->limit = ext2fs_cpu_to_le16(max_entries);
564 /* Always rewrite checksum */
568 unsigned int rec_len, name_size;
569 char *top = ctx->buf + fs->blocksize;
570 struct ext2_dir_entry *de = (struct ext2_dir_entry *)ctx->buf;
571 struct ext2_dir_entry *last_de = NULL, *penultimate_de = NULL;
573 /* Find last and penultimate dirent */
574 while ((char *)de < top) {
575 penultimate_de = last_de;
577 ctx->errcode = ext2fs_get_rec_len(fs, de, &rec_len);
578 if (!ctx->errcode && !rec_len)
579 ctx->errcode = EXT2_ET_DIR_CORRUPTED;
582 de = (struct ext2_dir_entry *)(((char *)de) + rec_len);
584 ctx->errcode = ext2fs_get_rec_len(fs, last_de, &rec_len);
587 name_size = ext2fs_dirent_name_len(last_de);
589 if (!ext2fs_has_feature_metadata_csum(fs->super)) {
592 if (last_de->inode ||
594 rec_len != sizeof(struct ext2_dir_entry_tail))
597 * The last dirent is unused and the right length to
598 * have stored a checksum. Erase it.
600 ctx->errcode = ext2fs_get_rec_len(fs, penultimate_de,
603 ctx->errcode = EXT2_ET_DIR_CORRUPTED;
606 ext2fs_set_rec_len(fs, rec_len +
607 sizeof(struct ext2_dir_entry_tail),
611 unsigned csum_size = sizeof(struct ext2_dir_entry_tail);
612 struct ext2_dir_entry_tail *t;
615 * If the last dirent looks like the tail, just update
618 if (!last_de->inode &&
619 rec_len == csum_size) {
620 t = (struct ext2_dir_entry_tail *)last_de;
621 t->det_reserved_name_len =
622 EXT2_DIR_NAME_LEN_CSUM;
627 name_size = (name_size & ~3) + 4;
628 /* If there's not enough space for the tail, e2fsck */
629 if (rec_len <= (8 + name_size + csum_size)) {
630 request_dir_fsck_afterwards(fs);
633 /* Shorten that last de and insert the tail */
634 ext2fs_set_rec_len(fs, rec_len - csum_size, last_de);
635 t = EXT2_DIRENT_TAIL(ctx->buf, fs->blocksize);
636 ext2fs_initialize_dirent_tail(fs, t);
638 /* Always update checksum */
647 ctx->errcode = ext2fs_write_dir_block4(fs, *blocknr, ctx->buf,
655 static errcode_t rewrite_directory(ext2_filsys fs, ext2_ino_t dir,
656 struct ext2_inode *inode)
659 struct rewrite_dir_context ctx;
661 retval = ext2fs_get_mem(fs->blocksize, &ctx.buf);
665 ctx.is_htree = !!(inode->i_flags & EXT2_INDEX_FL);
666 ctx.clear_htree = !ext2fs_has_feature_dir_index(fs->super);
669 retval = ext2fs_block_iterate3(fs, dir, BLOCK_FLAG_READ_ONLY |
670 BLOCK_FLAG_DATA_ONLY,
671 0, rewrite_dir_block, &ctx);
673 ext2fs_free_mem(&ctx.buf);
677 if (ctx.is_htree && ctx.clear_htree) {
678 inode->i_flags &= ~EXT2_INDEX_FL;
679 retval = ext2fs_write_inode(fs, dir, inode);
688 * Context information that does not change across rewrite_one_inode()
691 struct rewrite_context {
693 struct ext2_inode *zero_inode;
698 #define fatal_err(code, args...) \
700 com_err(__func__, code, args); \
704 static void update_ea_inode_hash(struct rewrite_context *ctx, ext2_ino_t ino,
705 struct ext2_inode *inode)
711 retval = ext2fs_file_open(ctx->fs, ino, 0, &file);
713 fatal_err(retval, "open ea_inode");
714 retval = ext2fs_file_read(file, ctx->ea_buf, inode->i_size,
717 fatal_err(retval, "read ea_inode");
718 retval = ext2fs_file_close(file);
720 fatal_err(retval, "close ea_inode");
722 hash = ext2fs_crc32c_le(ctx->fs->csum_seed,
723 (unsigned char *) ctx->ea_buf, inode->i_size);
724 ext2fs_set_ea_inode_hash(inode, hash);
727 static int update_xattr_entry_hashes(ext2_filsys fs,
728 struct ext2_ext_attr_entry *entry,
729 struct ext2_ext_attr_entry *end)
734 while (entry < end && !EXT2_EXT_IS_LAST_ENTRY(entry)) {
735 if (entry->e_value_inum) {
736 retval = ext2fs_ext_attr_hash_entry2(fs, entry, NULL,
739 fatal_err(retval, "hash ea_inode entry");
742 entry = EXT2_EXT_ATTR_NEXT(entry);
747 static void update_inline_xattr_hashes(struct rewrite_context *ctx,
748 struct ext2_inode_large *inode)
750 struct ext2_ext_attr_entry *start, *end;
753 if (inode->i_extra_isize == 0)
756 if (inode->i_extra_isize & 3 ||
757 inode->i_extra_isize > ctx->inode_size - EXT2_GOOD_OLD_INODE_SIZE)
758 fatal_err(EXT2_ET_INODE_CORRUPTED, "bad i_extra_isize")
760 ea_magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
761 inode->i_extra_isize);
762 if (*ea_magic != EXT2_EXT_ATTR_MAGIC)
765 start = (struct ext2_ext_attr_entry *)(ea_magic + 1);
766 end = (struct ext2_ext_attr_entry *)((char *)inode + ctx->inode_size);
768 update_xattr_entry_hashes(ctx->fs, start, end);
771 static void update_block_xattr_hashes(struct rewrite_context *ctx,
774 struct ext2_ext_attr_header *header;
775 struct ext2_ext_attr_entry *start, *end;
777 header = (struct ext2_ext_attr_header *)block_buf;
778 if (header->h_magic != EXT2_EXT_ATTR_MAGIC)
781 start = (struct ext2_ext_attr_entry *)(header+1);
782 end = (struct ext2_ext_attr_entry *)(block_buf + ctx->fs->blocksize);
784 if (update_xattr_entry_hashes(ctx->fs, start, end))
785 ext2fs_ext_attr_block_rehash(header, end);
788 static void rewrite_one_inode(struct rewrite_context *ctx, ext2_ino_t ino,
789 struct ext2_inode *inode)
791 blk64_t file_acl_block;
794 if (!ext2fs_test_inode_bitmap2(ctx->fs->inode_map, ino)) {
795 if (!memcmp(inode, ctx->zero_inode, ctx->inode_size))
797 memset(inode, 0, ctx->inode_size);
800 if (inode->i_flags & EXT4_EA_INODE_FL)
801 update_ea_inode_hash(ctx, ino, inode);
803 if (ctx->inode_size != EXT2_GOOD_OLD_INODE_SIZE)
804 update_inline_xattr_hashes(ctx,
805 (struct ext2_inode_large *)inode);
807 retval = ext2fs_write_inode_full(ctx->fs, ino, inode, ctx->inode_size);
809 fatal_err(retval, "while writing inode");
811 retval = ext2fs_fix_extents_checksums(ctx->fs, ino, inode);
813 fatal_err(retval, "while rewriting extents");
815 if (LINUX_S_ISDIR(inode->i_mode) &&
816 ext2fs_inode_has_valid_blocks2(ctx->fs, inode)) {
817 retval = rewrite_directory(ctx->fs, ino, inode);
819 fatal_err(retval, "while rewriting directories");
822 file_acl_block = ext2fs_file_acl_block(ctx->fs, inode);
826 retval = ext2fs_read_ext_attr3(ctx->fs, file_acl_block, ctx->ea_buf,
829 fatal_err(retval, "while rewriting extended attribute");
831 update_block_xattr_hashes(ctx, ctx->ea_buf);
832 retval = ext2fs_write_ext_attr3(ctx->fs, file_acl_block, ctx->ea_buf,
835 fatal_err(retval, "while rewriting extended attribute");
838 #define REWRITE_EA_FL 0x01 /* Rewrite EA inodes */
839 #define REWRITE_DIR_FL 0x02 /* Rewrite directories */
840 #define REWRITE_NONDIR_FL 0x04 /* Rewrite other inodes */
841 #define REWRITE_ALL (REWRITE_EA_FL | REWRITE_DIR_FL | REWRITE_NONDIR_FL)
843 static void rewrite_inodes_pass(struct rewrite_context *ctx, unsigned int flags)
845 ext2_inode_scan scan;
848 struct ext2_inode *inode;
851 retval = ext2fs_get_mem(ctx->inode_size, &inode);
853 fatal_err(retval, "while allocating memory");
855 retval = ext2fs_open_inode_scan(ctx->fs, 0, &scan);
857 fatal_err(retval, "while opening inode scan");
860 retval = ext2fs_get_next_inode_full(scan, &ino, inode,
863 fatal_err(retval, "while getting next inode");
868 if (inode->i_flags & EXT4_EA_INODE_FL) {
869 if (flags & REWRITE_EA_FL)
871 } else if (LINUX_S_ISDIR(inode->i_mode)) {
872 if (flags & REWRITE_DIR_FL)
875 if (flags & REWRITE_NONDIR_FL)
879 rewrite_one_inode(ctx, ino, inode);
881 ext2fs_close_inode_scan(scan);
882 ext2fs_free_mem(&inode);
886 * Forcibly rewrite checksums in inodes specified by 'flags'
888 static void rewrite_inodes(ext2_filsys fs, unsigned int flags)
890 struct rewrite_context ctx = {
892 .inode_size = EXT2_INODE_SIZE(fs->super),
896 if (fs->super->s_creator_os == EXT2_OS_HURD)
899 retval = ext2fs_get_memzero(ctx.inode_size, &ctx.zero_inode);
901 fatal_err(retval, "while allocating memory");
903 retval = ext2fs_get_mem(64 * 1024, &ctx.ea_buf);
905 fatal_err(retval, "while allocating memory");
908 * Extended attribute inodes have a lookup hash that needs to be
909 * recalculated with the new csum_seed. Other inodes referencing xattr
910 * inodes need this value to be up to date. That's why we do two passes:
912 * pass 1: update xattr inodes to update their lookup hash as well as
915 * pass 2: go over other inodes to update their checksums.
917 if (ext2fs_has_feature_ea_inode(fs->super) && (flags & REWRITE_EA_FL))
918 rewrite_inodes_pass(&ctx, REWRITE_EA_FL);
919 flags &= ~REWRITE_EA_FL;
920 rewrite_inodes_pass(&ctx, flags);
922 ext2fs_free_mem(&ctx.zero_inode);
923 ext2fs_free_mem(&ctx.ea_buf);
926 static void rewrite_metadata_checksums(ext2_filsys fs, unsigned int flags)
931 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
932 ext2fs_init_csum_seed(fs);
933 for (i = 0; i < fs->group_desc_count; i++)
934 ext2fs_group_desc_csum_set(fs, i);
935 retval = ext2fs_read_bitmaps(fs);
937 fatal_err(retval, "while reading bitmaps");
938 rewrite_inodes(fs, flags);
939 ext2fs_mark_ib_dirty(fs);
940 ext2fs_mark_bb_dirty(fs);
941 ext2fs_mmp_update2(fs, 1);
942 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
943 fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
944 if (ext2fs_has_feature_metadata_csum(fs->super))
945 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
947 fs->super->s_checksum_type = 0;
948 ext2fs_mark_super_dirty(fs);
951 static void enable_uninit_bg(ext2_filsys fs)
953 struct ext2_group_desc *gd;
956 for (i = 0; i < fs->group_desc_count; i++) {
957 gd = ext2fs_group_desc(fs, fs->group_desc, i);
958 gd->bg_itable_unused = 0;
959 gd->bg_flags = EXT2_BG_INODE_ZEROED;
960 ext2fs_group_desc_csum_set(fs, i);
962 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
965 static errcode_t zero_empty_inodes(ext2_filsys fs)
967 int length = EXT2_INODE_SIZE(fs->super);
968 struct ext2_inode *inode = NULL;
969 ext2_inode_scan scan;
973 retval = ext2fs_open_inode_scan(fs, 0, &scan);
977 retval = ext2fs_get_mem(length, &inode);
982 retval = ext2fs_get_next_inode_full(scan, &ino, inode, length);
987 if (!ext2fs_test_inode_bitmap2(fs->inode_map, ino)) {
988 memset(inode, 0, length);
989 retval = ext2fs_write_inode_full(fs, ino, inode,
997 ext2fs_free_mem(&inode);
998 ext2fs_close_inode_scan(scan);
1002 static errcode_t disable_uninit_bg(ext2_filsys fs, __u32 csum_feature_flag)
1004 struct ext2_group_desc *gd;
1009 /* Load bitmaps to ensure that the uninit ones get written out */
1010 fs->super->s_feature_ro_compat |= csum_feature_flag;
1011 retval = ext2fs_read_bitmaps(fs);
1012 fs->super->s_feature_ro_compat &= ~csum_feature_flag;
1014 com_err("disable_uninit_bg", retval,
1015 "while reading bitmaps");
1016 request_fsck_afterwards(fs);
1019 ext2fs_mark_ib_dirty(fs);
1020 ext2fs_mark_bb_dirty(fs);
1022 /* If we're only turning off uninit_bg, zero the inodes */
1023 if (csum_feature_flag == EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
1024 retval = zero_empty_inodes(fs);
1026 com_err("disable_uninit_bg", retval,
1027 "while zeroing unused inodes");
1028 request_fsck_afterwards(fs);
1033 /* The bbitmap is zeroed; we must mark group metadata blocks in use */
1034 for (i = 0; i < fs->group_desc_count; i++) {
1035 b = ext2fs_block_bitmap_loc(fs, i);
1036 ext2fs_mark_block_bitmap2(fs->block_map, b);
1037 b = ext2fs_inode_bitmap_loc(fs, i);
1038 ext2fs_mark_block_bitmap2(fs->block_map, b);
1040 retval = ext2fs_super_and_bgd_loc2(fs, i, &b, &c, &d, NULL);
1041 if (retval == 0 && b)
1042 ext2fs_mark_block_bitmap2(fs->block_map, b);
1043 if (retval == 0 && c)
1044 ext2fs_mark_block_bitmap2(fs->block_map, c);
1045 if (retval == 0 && d)
1046 ext2fs_mark_block_bitmap2(fs->block_map, d);
1048 com_err("disable_uninit_bg", retval,
1049 "while initializing block bitmaps");
1050 request_fsck_afterwards(fs);
1053 gd = ext2fs_group_desc(fs, fs->group_desc, i);
1054 gd->bg_itable_unused = 0;
1056 ext2fs_group_desc_csum_set(fs, i);
1058 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1059 ext2fs_mark_super_dirty(fs);
1065 try_confirm_csum_seed_support(void)
1067 if (access("/sys/fs/ext4/features/metadata_csum_seed", R_OK))
1068 fputs(_("WARNING: Could not confirm kernel support for "
1069 "metadata_csum_seed.\n This requires Linux >= "
1070 "v4.4.\n"), stderr);
1074 * Update the feature set as provided by the user.
1076 static int update_feature_set(ext2_filsys fs, char *features)
1078 struct ext2_super_block *sb = fs->super;
1079 __u32 old_features[3];
1081 unsigned int mask_err;
1083 enum quota_type qtype;
1085 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
1086 ((&sb->s_feature_compat)[(type)] & (mask)))
1087 #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
1088 !((&sb->s_feature_compat)[(type)] & (mask)))
1089 #define FEATURE_CHANGED(type, mask) ((mask) & \
1090 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
1092 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat;
1093 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat;
1094 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat;
1096 if (e2p_edit_feature2(features, &sb->s_feature_compat,
1097 ok_features, clear_ok_features,
1098 &type_err, &mask_err)) {
1101 _("Invalid filesystem option set: %s\n"),
1103 else if (type_err & E2P_FEATURE_NEGATE_FLAG)
1104 fprintf(stderr, _("Clearing filesystem feature '%s' "
1105 "not supported.\n"),
1106 e2p_feature2string(type_err &
1107 E2P_FEATURE_TYPE_MASK,
1110 fprintf(stderr, _("Setting filesystem feature '%s' "
1111 "not supported.\n"),
1112 e2p_feature2string(type_err, mask_err));
1116 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
1117 if ((mount_flags & EXT2_MF_MOUNTED) &&
1118 !(mount_flags & EXT2_MF_READONLY)) {
1119 fputs(_("The has_journal feature may only be "
1120 "cleared when the filesystem is\n"
1121 "unmounted or mounted "
1122 "read-only.\n"), stderr);
1125 if (ext2fs_has_feature_journal_needs_recovery(sb) &&
1127 fputs(_("The needs_recovery flag is set. "
1128 "Please run e2fsck before clearing\n"
1129 "the has_journal flag.\n"), stderr);
1132 if (sb->s_journal_inum) {
1133 if (remove_journal_inode(fs))
1136 if (sb->s_journal_dev) {
1137 if (remove_journal_device(fs))
1142 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1143 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
1144 if (ext2fs_has_feature_meta_bg(sb)) {
1145 fputs(_("Setting filesystem feature 'sparse_super' "
1146 "not supported\nfor filesystems with "
1147 "the meta_bg feature enabled.\n"),
1153 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
1156 if ((mount_flags & EXT2_MF_MOUNTED) ||
1157 (mount_flags & EXT2_MF_READONLY)) {
1158 fputs(_("The multiple mount protection feature can't\n"
1159 "be set if the filesystem is mounted or\n"
1160 "read-only.\n"), stderr);
1164 error = ext2fs_mmp_init(fs);
1166 fputs(_("\nError while enabling multiple mount "
1167 "protection feature."), stderr);
1172 * We want to update group desc with the new free blocks count
1174 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1176 printf(_("Multiple mount protection has been enabled "
1177 "with update interval %ds.\n"),
1178 sb->s_mmp_update_interval);
1181 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
1184 if (mount_flags & EXT2_MF_READONLY) {
1185 fputs(_("The multiple mount protection feature cannot\n"
1186 "be disabled if the filesystem is readonly.\n"),
1191 error = ext2fs_read_bitmaps(fs);
1193 fputs(_("Error while reading bitmaps\n"), stderr);
1197 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL);
1199 struct mmp_struct *mmp_cmp = fs->mmp_cmp;
1201 if (error == EXT2_ET_MMP_MAGIC_INVALID)
1202 printf(_("Magic number in MMP block does not "
1203 "match. expected: %x, actual: %x\n"),
1204 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic);
1206 com_err(program_name, error, "%s",
1207 _("while reading MMP block."));
1211 /* We need to force out the group descriptors as well */
1212 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1213 ext2fs_block_alloc_stats2(fs, sb->s_mmp_block, -1);
1215 sb->s_mmp_block = 0;
1216 sb->s_mmp_update_interval = 0;
1219 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
1221 * If adding a journal flag, let the create journal
1222 * code below handle setting the flag and creating the
1223 * journal. We supply a default size if necessary.
1227 ext2fs_clear_feature_journal(sb);
1230 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) {
1231 if (!sb->s_def_hash_version)
1232 sb->s_def_hash_version = EXT2_HASH_HALF_MD4;
1233 if (uuid_is_null((unsigned char *) sb->s_hash_seed))
1234 uuid_generate((unsigned char *) sb->s_hash_seed);
1237 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX) &&
1238 ext2fs_has_feature_metadata_csum(sb)) {
1239 check_fsck_needed(fs,
1240 _("Disabling directory index on filesystem with "
1241 "checksums could take some time."));
1242 if (mount_flags & EXT2_MF_MOUNTED) {
1243 fputs(_("Cannot disable dir_index on a mounted "
1244 "filesystem!\n"), stderr);
1248 * Clearing dir_index on checksummed filesystem requires
1249 * rewriting all directories to update checksums.
1251 rewrite_checksums |= REWRITE_DIR_FL;
1254 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
1255 if (ext2fs_check_desc(fs)) {
1256 fputs(_("Clearing the flex_bg flag would "
1257 "cause the the filesystem to be\n"
1258 "inconsistent.\n"), stderr);
1263 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1264 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
1265 if ((mount_flags & EXT2_MF_MOUNTED) &&
1266 !(mount_flags & EXT2_MF_READONLY)) {
1267 fputs(_("The huge_file feature may only be "
1268 "cleared when the filesystem is\n"
1269 "unmounted or mounted "
1270 "read-only.\n"), stderr);
1275 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1276 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
1277 check_fsck_needed(fs,
1278 _("Enabling checksums could take some time."));
1279 if (mount_flags & EXT2_MF_MOUNTED) {
1280 fputs(_("Cannot enable metadata_csum on a mounted "
1281 "filesystem!\n"), stderr);
1284 if (!ext2fs_has_feature_extents(fs->super))
1286 _("Extents are not enabled. The file extent "
1287 "tree can be checksummed, whereas block maps "
1288 "cannot. Not enabling extents reduces the "
1289 "coverage of metadata checksumming. "
1290 "Re-run with -O extent to rectify.\n"));
1291 if (!ext2fs_has_feature_64bit(fs->super))
1293 _("64-bit filesystem support is not enabled. "
1294 "The larger fields afforded by this feature "
1295 "enable full-strength checksumming. "
1296 "Run resize2fs -b to rectify.\n"));
1297 rewrite_checksums = REWRITE_ALL;
1298 /* metadata_csum supersedes uninit_bg */
1299 ext2fs_clear_feature_gdt_csum(fs->super);
1301 /* if uninit_bg was previously off, rewrite group desc */
1302 if (!(old_features[E2P_FEATURE_RO_INCOMPAT] &
1303 EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
1304 enable_uninit_bg(fs);
1307 * Since metadata_csum supersedes uninit_bg, pretend like
1308 * uninit_bg has been off all along.
1310 old_features[E2P_FEATURE_RO_INCOMPAT] &=
1311 ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
1314 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1315 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
1316 __u32 test_features[3];
1318 check_fsck_needed(fs,
1319 _("Disabling checksums could take some time."));
1320 if (mount_flags & EXT2_MF_MOUNTED) {
1321 fputs(_("Cannot disable metadata_csum on a mounted "
1322 "filesystem!\n"), stderr);
1325 rewrite_checksums = REWRITE_ALL;
1327 /* Enable uninit_bg unless the user expressly turned it off */
1328 memcpy(test_features, old_features, sizeof(test_features));
1329 test_features[E2P_FEATURE_RO_INCOMPAT] |=
1330 EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
1331 e2p_edit_feature2(features, test_features, ok_features,
1332 clear_ok_features, NULL, NULL);
1333 if (test_features[E2P_FEATURE_RO_INCOMPAT] &
1334 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)
1335 ext2fs_set_feature_gdt_csum(fs->super);
1338 * If we're turning off metadata_csum and not turning on
1339 * uninit_bg, rewrite group desc.
1341 if (!ext2fs_has_feature_gdt_csum(fs->super)) {
1342 err = disable_uninit_bg(fs,
1343 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
1348 * metadata_csum previously provided uninit_bg, so if
1349 * we're also setting the uninit_bg feature bit,
1350 * pretend like it was previously enabled. Checksums
1351 * will be rewritten with crc16 later.
1353 old_features[E2P_FEATURE_RO_INCOMPAT] |=
1354 EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
1355 fs->super->s_checksum_seed = 0;
1356 ext2fs_clear_feature_csum_seed(fs->super);
1359 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1360 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
1361 if (mount_flags & EXT2_MF_MOUNTED) {
1362 fputs(_("Cannot enable uninit_bg on a mounted "
1363 "filesystem!\n"), stderr);
1367 /* Do not enable uninit_bg when metadata_csum enabled */
1368 if (ext2fs_has_feature_metadata_csum(fs->super))
1369 ext2fs_clear_feature_gdt_csum(fs->super);
1371 enable_uninit_bg(fs);
1374 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1375 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
1376 if (mount_flags & EXT2_MF_MOUNTED) {
1377 fputs(_("Cannot disable uninit_bg on a mounted "
1378 "filesystem!\n"), stderr);
1382 err = disable_uninit_bg(fs,
1383 EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
1389 * We don't actually toggle 64bit; resize2fs does that. But this
1390 * must come after the metadata_csum feature_on so that it won't
1391 * complain about the lack of 64bit.
1393 if (FEATURE_ON(E2P_FEATURE_INCOMPAT,
1394 EXT4_FEATURE_INCOMPAT_64BIT)) {
1395 if (mount_flags & EXT2_MF_MOUNTED) {
1396 fprintf(stderr, _("Cannot enable 64-bit mode "
1397 "while mounted!\n"));
1400 ext2fs_clear_feature_64bit(sb);
1403 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT,
1404 EXT4_FEATURE_INCOMPAT_64BIT)) {
1405 if (mount_flags & EXT2_MF_MOUNTED) {
1406 fprintf(stderr, _("Cannot disable 64-bit mode "
1407 "while mounted!\n"));
1410 ext2fs_set_feature_64bit(sb);
1414 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1415 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
1417 * Set the Q_flag here and handle the quota options in the code
1422 /* Enable usr/grp quota by default */
1423 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1424 if (qtype != PRJQUOTA)
1425 quota_enable[qtype] = QOPT_ENABLE;
1427 quota_enable[qtype] = QOPT_DISABLE;
1430 ext2fs_clear_feature_quota(sb);
1433 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1434 EXT4_FEATURE_RO_COMPAT_PROJECT)) {
1435 if (fs->super->s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
1436 fprintf(stderr, _("Cannot enable project feature; "
1437 "inode size too small.\n"));
1441 quota_enable[PRJQUOTA] = QOPT_ENABLE;
1444 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1445 EXT4_FEATURE_RO_COMPAT_PROJECT)) {
1447 quota_enable[PRJQUOTA] = QOPT_DISABLE;
1450 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1451 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
1453 * Set the Q_flag here and handle the quota options in the code
1457 fputs(_("\nWarning: '^quota' option overrides '-Q'"
1458 "arguments.\n"), stderr);
1460 /* Disable all quota by default */
1461 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1462 quota_enable[qtype] = QOPT_DISABLE;
1465 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_ENCRYPT)) {
1466 if (ext2fs_has_feature_casefold(sb)) {
1467 fputs(_("Cannot enable encrypt feature on filesystems "
1468 "with the encoding feature enabled.\n"),
1472 fs->super->s_encrypt_algos[0] =
1473 EXT4_ENCRYPTION_MODE_AES_256_XTS;
1474 fs->super->s_encrypt_algos[1] =
1475 EXT4_ENCRYPTION_MODE_AES_256_CTS;
1478 if (FEATURE_ON(E2P_FEATURE_INCOMPAT,
1479 EXT4_FEATURE_INCOMPAT_CSUM_SEED)) {
1480 if (!ext2fs_has_feature_metadata_csum(sb)) {
1481 fputs(_("Setting feature 'metadata_csum_seed' "
1482 "is only supported\non filesystems with "
1483 "the metadata_csum feature enabled.\n"),
1487 try_confirm_csum_seed_support();
1488 fs->super->s_checksum_seed = fs->csum_seed;
1491 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT,
1492 EXT4_FEATURE_INCOMPAT_CSUM_SEED)) {
1495 uuid_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
1496 sizeof(fs->super->s_uuid));
1497 if (fs->super->s_checksum_seed != uuid_seed) {
1498 if (mount_flags & (EXT2_MF_BUSY|EXT2_MF_MOUNTED)) {
1499 fputs(_("UUID has changed since enabling "
1500 "metadata_csum. Filesystem must be unmounted "
1501 "\nto safely rewrite all metadata to match the new UUID.\n"),
1505 check_fsck_needed(fs, _("Recalculating checksums "
1506 "could take some time."));
1507 rewrite_checksums = REWRITE_ALL;
1511 if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
1512 (sb->s_feature_compat || sb->s_feature_ro_compat ||
1513 sb->s_feature_incompat))
1514 ext2fs_update_dynamic_rev(fs);
1516 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
1517 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
1518 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1519 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
1520 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
1521 EXT2_FEATURE_INCOMPAT_FILETYPE) ||
1522 FEATURE_CHANGED(E2P_FEATURE_COMPAT,
1523 EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
1524 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1525 EXT2_FEATURE_RO_COMPAT_LARGE_FILE))
1526 request_fsck_afterwards(fs);
1528 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) ||
1529 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) ||
1530 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat))
1531 ext2fs_mark_super_dirty(fs);
1537 * Add a journal to the filesystem.
1539 static int add_journal(ext2_filsys fs)
1541 unsigned long journal_blocks;
1546 if (ext2fs_has_feature_journal(fs->super)) {
1547 fputs(_("The filesystem already has a journal.\n"), stderr);
1550 if (journal_device) {
1551 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
1553 proceed_question(-1);
1554 check_mount(journal_device, 0, _("journal"));
1555 #ifdef CONFIG_TESTIO_DEBUG
1556 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1557 io_ptr = test_io_manager;
1558 test_io_backing_manager = unix_io_manager;
1561 io_ptr = unix_io_manager;
1562 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
1563 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1564 fs->blocksize, io_ptr, &jfs);
1566 com_err(program_name, retval,
1567 _("\n\twhile trying to open journal on %s\n"),
1571 printf(_("Creating journal on device %s: "),
1575 retval = ext2fs_add_journal_device(fs, jfs);
1576 ext2fs_close_free(&jfs);
1578 com_err(program_name, retval,
1579 _("while adding filesystem to journal on %s"),
1583 fputs(_("done\n"), stdout);
1584 } else if (journal_size) {
1585 fputs(_("Creating journal inode: "), stdout);
1587 journal_blocks = figure_journal_size(journal_size, fs);
1589 if (journal_location_string)
1591 parse_num_blocks2(journal_location_string,
1592 fs->super->s_log_block_size);
1593 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
1597 fprintf(stderr, "\n");
1598 com_err(program_name, retval, "%s",
1599 _("\n\twhile trying to create journal file"));
1602 fputs(_("done\n"), stdout);
1604 * If the filesystem wasn't mounted, we need to force
1605 * the block group descriptors out.
1607 if ((mount_flags & EXT2_MF_MOUNTED) == 0)
1608 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1610 print_check_message(fs->super->s_max_mnt_count,
1611 fs->super->s_checkinterval);
1615 free(journal_device);
1619 static void handle_quota_options(ext2_filsys fs)
1624 enum quota_type qtype;
1625 unsigned int qtype_bits = 0;
1628 for (qtype = 0 ; qtype < MAXQUOTAS; qtype++)
1629 if (quota_enable[qtype] != 0)
1631 if (qtype == MAXQUOTAS)
1632 /* Nothing to do. */
1635 if (quota_enable[PRJQUOTA] == QOPT_ENABLE &&
1636 fs->super->s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
1637 fprintf(stderr, _("Cannot enable project quota; "
1638 "inode size too small.\n"));
1642 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1643 if (quota_enable[qtype] == QOPT_ENABLE)
1644 qtype_bits |= 1 << qtype;
1647 retval = quota_init_context(&qctx, fs, qtype_bits);
1649 com_err(program_name, retval,
1650 _("while initializing quota context in support library"));
1655 quota_compute_usage(qctx);
1657 for (qtype = 0 ; qtype < MAXQUOTAS; qtype++) {
1658 if (quota_enable[qtype] == QOPT_ENABLE &&
1659 *quota_sb_inump(fs->super, qtype) == 0) {
1660 if ((qf_ino = quota_file_exists(fs, qtype)) > 0) {
1661 retval = quota_update_limits(qctx, qf_ino,
1664 com_err(program_name, retval,
1665 _("while updating quota limits (%d)"),
1670 retval = quota_write_inode(qctx, 1 << qtype);
1672 com_err(program_name, retval,
1673 _("while writing quota file (%d)"),
1677 /* Enable Quota feature if one of quota enabled */
1678 if (!ext2fs_has_feature_quota(fs->super)) {
1679 ext2fs_set_feature_quota(fs->super);
1682 if (qtype == PRJQUOTA &&
1683 !ext2fs_has_feature_project(fs->super)) {
1684 ext2fs_set_feature_project(fs->super);
1687 } else if (quota_enable[qtype] == QOPT_DISABLE) {
1688 retval = quota_remove_inode(fs, qtype);
1690 com_err(program_name, retval,
1691 _("while removing quota file (%d)"),
1695 if (qtype == PRJQUOTA) {
1696 ext2fs_clear_feature_project(fs->super);
1702 quota_release_context(&qctx);
1703 /* Clear Quota feature if all quota types disabled. */
1705 for (qtype = 0 ; qtype < MAXQUOTAS; qtype++)
1706 if (*quota_sb_inump(fs->super, qtype))
1708 if (qtype == MAXQUOTAS) {
1709 ext2fs_clear_feature_quota(fs->super);
1715 ext2fs_mark_super_dirty(fs);
1719 static int option_handle_function(char *token)
1721 if (strncmp(token, "usr", 3) == 0) {
1722 quota_enable[USRQUOTA] = QOPT_ENABLE;
1723 } else if (strncmp(token, "^usr", 4) == 0) {
1724 quota_enable[USRQUOTA] = QOPT_DISABLE;
1725 } else if (strncmp(token, "grp", 3) == 0) {
1726 quota_enable[GRPQUOTA] = QOPT_ENABLE;
1727 } else if (strncmp(token, "^grp", 4) == 0) {
1728 quota_enable[GRPQUOTA] = QOPT_DISABLE;
1729 } else if (strncmp(token, "prj", 3) == 0) {
1730 quota_enable[PRJQUOTA] = QOPT_ENABLE;
1731 } else if (strncmp(token, "^prj", 4) == 0) {
1732 quota_enable[PRJQUOTA] = QOPT_DISABLE;
1734 fputs(_("\nBad quota options specified.\n\n"
1735 "Following valid quota options are available "
1736 "(pass by separating with comma):\n"
1746 static void parse_e2label_options(int argc, char ** argv)
1748 if ((argc < 2) || (argc > 3)) {
1749 fputs(_("Usage: e2label device [newlabel]\n"), stderr);
1752 io_options = strchr(argv[1], '?');
1755 device_name = blkid_get_devname(NULL, argv[1], NULL);
1757 com_err("e2label", 0, _("Unable to resolve '%s'"),
1761 open_flag = EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SUPER_ONLY;
1763 open_flag |= EXT2_FLAG_RW;
1765 new_label = argv[2];
1770 static time_t parse_time(char *str)
1774 if (strcmp(str, "now") == 0) {
1777 memset(&ts, 0, sizeof(ts));
1778 #ifdef HAVE_STRPTIME
1779 strptime(str, "%Y%m%d%H%M%S", &ts);
1781 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
1782 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
1785 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
1786 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
1787 ts.tm_min > 59 || ts.tm_sec > 61)
1790 if (ts.tm_mday == 0) {
1791 com_err(program_name, 0,
1792 _("Couldn't parse date/time specifier: %s"),
1797 return (mktime(&ts));
1800 static void parse_tune2fs_options(int argc, char **argv)
1807 char optstring[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:z:Q:";
1810 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
1811 while ((c = getopt(argc, argv, optstring)) != EOF)
1814 max_mount_count = strtol(optarg, &tmp, 0);
1815 if (*tmp || max_mount_count > 16000) {
1816 com_err(program_name, 0,
1817 _("bad mounts count - %s"),
1821 if (max_mount_count == 0)
1822 max_mount_count = -1;
1824 open_flag = EXT2_FLAG_RW;
1827 mount_count = strtoul(optarg, &tmp, 0);
1828 if (*tmp || mount_count > 16000) {
1829 com_err(program_name, 0,
1830 _("bad mounts count - %s"),
1835 open_flag = EXT2_FLAG_RW;
1838 if (strcmp(optarg, "continue") == 0)
1839 errors = EXT2_ERRORS_CONTINUE;
1840 else if (strcmp(optarg, "remount-ro") == 0)
1841 errors = EXT2_ERRORS_RO;
1842 else if (strcmp(optarg, "panic") == 0)
1843 errors = EXT2_ERRORS_PANIC;
1845 com_err(program_name, 0,
1846 _("bad error behavior - %s"),
1851 open_flag = EXT2_FLAG_RW;
1854 extended_cmd = optarg;
1855 open_flag |= EXT2_FLAG_RW;
1857 case 'f': /* Force */
1861 resgid = strtoul(optarg, &tmp, 0);
1863 gr = getgrnam(optarg);
1867 resgid = gr->gr_gid;
1872 com_err(program_name, 0,
1873 _("bad gid/group name - %s"),
1878 open_flag = EXT2_FLAG_RW;
1881 interval = strtoul(optarg, &tmp, 0);
1888 case 'D': /* days */
1894 case 'M': /* months! */
1895 interval *= 86400 * 30;
1899 case 'W': /* weeks */
1900 interval *= 86400 * 7;
1905 com_err(program_name, 0,
1906 _("bad interval - %s"), optarg);
1910 open_flag = EXT2_FLAG_RW;
1915 open_flag = EXT2_FLAG_RW;
1918 parse_journal_opts(optarg);
1919 open_flag = EXT2_FLAG_RW;
1927 open_flag |= EXT2_FLAG_RW |
1928 EXT2_FLAG_JOURNAL_DEV_OK;
1931 reserved_ratio = strtod(optarg, &tmp);
1932 if (*tmp || reserved_ratio > 50 ||
1933 reserved_ratio < 0) {
1934 com_err(program_name, 0,
1935 _("bad reserved block ratio - %s"),
1940 open_flag = EXT2_FLAG_RW;
1943 new_last_mounted = optarg;
1945 open_flag = EXT2_FLAG_RW;
1949 com_err(program_name, 0, "%s",
1950 _("-o may only be specified once"));
1953 mntopts_cmd = optarg;
1954 open_flag = EXT2_FLAG_RW;
1958 com_err(program_name, 0, "%s",
1959 _("-O may only be specified once"));
1962 features_cmd = optarg;
1963 open_flag = EXT2_FLAG_RW;
1967 ret = parse_quota_opts(optarg, option_handle_function);
1970 open_flag = EXT2_FLAG_RW;
1973 reserved_blocks = strtoul(optarg, &tmp, 0);
1975 com_err(program_name, 0,
1976 _("bad reserved blocks count - %s"),
1981 open_flag = EXT2_FLAG_RW;
1983 case 's': /* Deprecated */
1984 s_flag = atoi(optarg);
1985 open_flag = EXT2_FLAG_RW;
1989 last_check_time = parse_time(optarg);
1990 open_flag = EXT2_FLAG_RW;
1993 resuid = strtoul(optarg, &tmp, 0);
1995 pw = getpwnam(optarg);
1999 resuid = pw->pw_uid;
2004 com_err(program_name, 0,
2005 _("bad uid/user name - %s"),
2010 open_flag = EXT2_FLAG_RW;
2015 open_flag = EXT2_FLAG_RW |
2016 EXT2_FLAG_JOURNAL_DEV_OK;
2019 new_inode_size = strtoul(optarg, &tmp, 0);
2021 com_err(program_name, 0,
2022 _("bad inode size - %s"),
2026 if (!((new_inode_size &
2027 (new_inode_size - 1)) == 0)) {
2028 com_err(program_name, 0,
2029 _("Inode size must be a "
2030 "power of two- %s"),
2034 open_flag = EXT2_FLAG_RW;
2043 if (optind < argc - 1 || optind == argc)
2045 if (!open_flag && !l_flag)
2047 io_options = strchr(argv[optind], '?');
2050 device_name = blkid_get_devname(NULL, argv[optind], NULL);
2052 com_err(program_name, 0, _("Unable to resolve '%s'"),
2058 #ifdef CONFIG_BUILD_FINDFS
2059 void do_findfs(int argc, char **argv)
2064 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) {
2065 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
2068 dev = blkid_get_devname(NULL, argv[1], NULL);
2070 com_err("findfs", 0, _("Unable to resolve '%s'"),
2079 static int parse_extended_opts(ext2_filsys fs, const char *opts)
2081 char *buf, *token, *next, *p, *arg;
2086 buf = malloc(len+1);
2088 fprintf(stderr, "%s",
2089 _("Couldn't allocate memory to parse options!\n"));
2093 for (token = buf; token && *token; token = next) {
2094 p = strchr(token, ',');
2100 arg = strchr(token, '=');
2105 if (strcmp(token, "clear-mmp") == 0 ||
2106 strcmp(token, "clear_mmp") == 0) {
2108 } else if (strcmp(token, "mmp_update_interval") == 0) {
2114 intv = strtoul(arg, &p, 0);
2117 _("Invalid mmp_update_interval: %s\n"),
2123 intv = EXT4_MMP_UPDATE_INTERVAL;
2124 } else if (intv > EXT4_MMP_MAX_UPDATE_INTERVAL) {
2126 _("mmp_update_interval too big: %lu\n"),
2131 printf(P_("Setting multiple mount protection update "
2132 "interval to %lu second\n",
2133 "Setting multiple mount protection update "
2134 "interval to %lu seconds\n", intv),
2136 fs->super->s_mmp_update_interval = intv;
2137 ext2fs_mark_super_dirty(fs);
2138 } else if (!strcmp(token, "force_fsck")) {
2139 fs->super->s_state |= EXT2_ERROR_FS;
2140 printf(_("Setting filesystem error flag to force fsck.\n"));
2141 ext2fs_mark_super_dirty(fs);
2142 } else if (!strcmp(token, "test_fs")) {
2143 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
2144 printf("Setting test filesystem flag\n");
2145 ext2fs_mark_super_dirty(fs);
2146 } else if (!strcmp(token, "^test_fs")) {
2147 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
2148 printf("Clearing test filesystem flag\n");
2149 ext2fs_mark_super_dirty(fs);
2150 } else if (strcmp(token, "stride") == 0) {
2155 stride = strtoul(arg, &p, 0);
2158 _("Invalid RAID stride: %s\n"),
2164 } else if (strcmp(token, "stripe-width") == 0 ||
2165 strcmp(token, "stripe_width") == 0) {
2170 stripe_width = strtoul(arg, &p, 0);
2173 _("Invalid RAID stripe-width: %s\n"),
2178 stripe_width_set = 1;
2179 } else if (strcmp(token, "hash_alg") == 0 ||
2180 strcmp(token, "hash-alg") == 0) {
2185 hash_alg = e2p_string2hash(arg);
2188 _("Invalid hash algorithm: %s\n"),
2193 fs->super->s_def_hash_version = hash_alg;
2194 printf(_("Setting default hash algorithm "
2197 ext2fs_mark_super_dirty(fs);
2198 } else if (!strcmp(token, "mount_opts")) {
2203 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) {
2205 "Extended mount options too long\n");
2208 ext_mount_opts = strdup(arg);
2213 fprintf(stderr, "%s", _("\nBad options specified.\n\n"
2214 "Extended options are separated by commas, "
2215 "and may take an argument which\n"
2216 "\tis set off by an equals ('=') sign.\n\n"
2217 "Valid extended options are:\n"
2219 "\thash_alg=<hash algorithm>\n"
2220 "\tmount_opts=<extended default mount options>\n"
2221 "\tmmp_update_interval=<mmp update interval in seconds>\n"
2222 "\tstride=<RAID per-disk chunk size in blocks>\n"
2223 "\tstripe_width=<RAID stride*data disks in blocks>\n"
2236 * Fill in the block bitmap bmap with the information regarding the
2237 * blocks to be moved
2239 static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp,
2240 ext2fs_block_bitmap bmap)
2244 ext2_badblocks_list bb_list = 0;
2245 blk64_t j, needed_blocks = 0;
2246 blk64_t start_blk, end_blk;
2248 retval = ext2fs_read_bb_inode(fs, &bb_list);
2252 for (i = 0; i < fs->group_desc_count; i++) {
2253 start_blk = ext2fs_inode_table_loc(fs, i) +
2254 fs->inode_blocks_per_group;
2256 end_blk = ext2fs_inode_table_loc(fs, i) +
2257 new_ino_blks_per_grp;
2259 for (j = start_blk; j < end_blk; j++) {
2260 if (ext2fs_test_block_bitmap2(fs->block_map, j)) {
2262 * IF the block is a bad block we fail
2264 if (ext2fs_badblocks_list_test(bb_list, j)) {
2265 ext2fs_badblocks_list_free(bb_list);
2269 ext2fs_mark_block_bitmap2(bmap, j);
2272 * We are going to use this block for
2273 * inode table. So mark them used.
2275 ext2fs_mark_block_bitmap2(fs->block_map, j);
2278 needed_blocks += end_blk - start_blk;
2281 ext2fs_badblocks_list_free(bb_list);
2282 if (needed_blocks > ext2fs_free_blocks_count(fs->super))
2288 static int ext2fs_is_meta_block(ext2_filsys fs, blk64_t blk)
2291 group = ext2fs_group_of_blk2(fs, blk);
2292 if (ext2fs_block_bitmap_loc(fs, group) == blk)
2294 if (ext2fs_inode_bitmap_loc(fs, group) == blk)
2299 static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk64_t blk)
2301 blk64_t start_blk, end_blk;
2302 start_blk = fs->super->s_first_data_block +
2303 EXT2_GROUPS_TO_BLOCKS(fs->super, group);
2305 * We cannot get new block beyond end_blk for for the last block group
2306 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group
2308 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super);
2309 if (blk >= start_blk && blk <= end_blk)
2314 static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
2321 blk64_t blk, new_blk, goal;
2322 struct blk_move *bmv;
2324 retval = ext2fs_get_mem(fs->blocksize, &buf);
2328 for (new_blk = blk = fs->super->s_first_data_block;
2329 blk < ext2fs_blocks_count(fs->super); blk++) {
2330 if (!ext2fs_test_block_bitmap2(bmap, blk))
2333 if (ext2fs_is_meta_block(fs, blk)) {
2335 * If the block is mapping a fs meta data block
2336 * like group desc/block bitmap/inode bitmap. We
2337 * should find a block in the same group and fix
2338 * the respective fs metadata pointers. Otherwise
2341 group = ext2fs_group_of_blk2(fs, blk);
2342 goal = ext2fs_group_first_block2(fs, group);
2348 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk);
2352 /* new fs meta data block should be in the same group */
2353 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) {
2358 /* Mark this block as allocated */
2359 ext2fs_mark_block_bitmap2(fs->block_map, new_blk);
2361 /* Add it to block move list */
2362 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
2367 bmv->new_loc = new_blk;
2369 list_add(&(bmv->list), &blk_move_list);
2371 retval = io_channel_read_blk64(fs->io, blk, 1, buf);
2375 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf);
2381 ext2fs_free_mem(&buf);
2385 static blk64_t translate_block(blk64_t blk)
2387 struct list_head *entry;
2388 struct blk_move *bmv;
2390 list_for_each(entry, &blk_move_list) {
2391 bmv = list_entry(entry, struct blk_move, list);
2392 if (bmv->old_loc == blk)
2393 return bmv->new_loc;
2399 static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
2401 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
2402 blk64_t ref_block EXT2FS_ATTR((unused)),
2403 int ref_offset EXT2FS_ATTR((unused)),
2408 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data;
2410 if (!ext2fs_test_block_bitmap2(bmap, *block_nr))
2412 new_blk = translate_block(*block_nr);
2414 *block_nr = new_blk;
2416 * This will force the ext2fs_write_inode in the iterator
2418 ret |= BLOCK_CHANGED;
2424 static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
2426 errcode_t retval = 0;
2429 char *block_buf = 0;
2430 struct ext2_inode inode;
2431 ext2_inode_scan scan = NULL;
2433 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf);
2437 retval = ext2fs_open_inode_scan(fs, 0, &scan);
2442 retval = ext2fs_get_next_inode(scan, &ino, &inode);
2449 if (inode.i_links_count == 0)
2450 continue; /* inode not in use */
2453 * If we end up modifying the journal inode
2454 * the sb->s_jnl_blocks will differ. But a
2455 * subsequent e2fsck fixes that.
2456 * Do we need to fix this ??
2459 if (ext2fs_file_acl_block(fs, &inode) &&
2460 ext2fs_test_block_bitmap2(bmap,
2461 ext2fs_file_acl_block(fs, &inode))) {
2462 blk = translate_block(ext2fs_file_acl_block(fs,
2467 ext2fs_file_acl_block_set(fs, &inode, blk);
2470 * Write the inode to disk so that inode table
2473 retval = ext2fs_write_inode(fs, ino, &inode);
2478 if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
2481 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf,
2482 process_block, bmap);
2489 ext2fs_free_mem(&block_buf);
2490 ext2fs_close_inode_scan(scan);
2496 * We need to scan for inode and block bitmaps that may need to be
2497 * moved. This can take place if the filesystem was formatted for
2498 * RAID arrays using the mke2fs's extended option "stride".
2500 static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
2503 blk64_t blk, new_blk;
2505 for (i = 0; i < fs->group_desc_count; i++) {
2506 blk = ext2fs_block_bitmap_loc(fs, i);
2507 if (ext2fs_test_block_bitmap2(bmap, blk)) {
2508 new_blk = translate_block(blk);
2511 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
2514 blk = ext2fs_inode_bitmap_loc(fs, i);
2515 if (ext2fs_test_block_bitmap2(bmap, blk)) {
2516 new_blk = translate_block(blk);
2519 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
2525 static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
2530 int new_ino_blks_per_grp;
2532 char *old_itable = NULL, *new_itable = NULL;
2533 char *tmp_old_itable = NULL, *tmp_new_itable = NULL;
2534 unsigned long old_ino_size;
2535 int old_itable_size, new_itable_size;
2537 old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
2538 old_ino_size = EXT2_INODE_SIZE(fs->super);
2540 new_ino_blks_per_grp = ext2fs_div_ceil(
2541 EXT2_INODES_PER_GROUP(fs->super) *
2545 new_itable_size = new_ino_blks_per_grp * fs->blocksize;
2547 retval = ext2fs_get_mem(old_itable_size, &old_itable);
2551 retval = ext2fs_get_mem(new_itable_size, &new_itable);
2555 tmp_old_itable = old_itable;
2556 tmp_new_itable = new_itable;
2558 for (i = 0; i < fs->group_desc_count; i++) {
2559 blk = ext2fs_inode_table_loc(fs, i);
2560 retval = io_channel_read_blk64(fs->io, blk,
2561 fs->inode_blocks_per_group, old_itable);
2565 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) {
2566 memcpy(new_itable, old_itable, old_ino_size);
2568 memset(new_itable+old_ino_size, 0,
2569 new_ino_size - old_ino_size);
2571 new_itable += new_ino_size;
2572 old_itable += old_ino_size;
2575 /* reset the pointer */
2576 old_itable = tmp_old_itable;
2577 new_itable = tmp_new_itable;
2579 retval = io_channel_write_blk64(fs->io, blk,
2580 new_ino_blks_per_grp, new_itable);
2585 /* Update the meta data */
2586 fs->inode_blocks_per_group = new_ino_blks_per_grp;
2587 ext2fs_free_inode_cache(fs->icache);
2589 fs->super->s_inode_size = new_ino_size;
2593 ext2fs_free_mem(&old_itable);
2596 ext2fs_free_mem(&new_itable);
2601 static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
2605 unsigned int group = 0;
2606 unsigned int count = 0;
2611 * First calculate the block statistics
2613 for (blk = fs->super->s_first_data_block;
2614 blk < ext2fs_blocks_count(fs->super); blk++) {
2615 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) {
2620 if ((count == fs->super->s_blocks_per_group) ||
2621 (blk == ext2fs_blocks_count(fs->super)-1)) {
2622 ext2fs_bg_free_blocks_count_set(fs, group++,
2628 total_free = EXT2FS_C2B(fs, total_free);
2629 ext2fs_free_blocks_count_set(fs->super, total_free);
2632 * Next, calculate the inode statistics
2639 /* Protect loop from wrap-around if s_inodes_count maxed */
2640 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
2641 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) {
2646 if ((count == fs->super->s_inodes_per_group) ||
2647 (ino == fs->super->s_inodes_count)) {
2648 ext2fs_bg_free_inodes_count_set(fs, group++,
2654 fs->super->s_free_inodes_count = total_free;
2655 ext2fs_mark_super_dirty(fs);
2659 #define list_for_each_safe(pos, pnext, head) \
2660 for (pos = (head)->next, pnext = pos->next; pos != (head); \
2661 pos = pnext, pnext = pos->next)
2663 static void free_blk_move_list(void)
2665 struct list_head *entry, *tmp;
2666 struct blk_move *bmv;
2668 list_for_each_safe(entry, tmp, &blk_move_list) {
2669 bmv = list_entry(entry, struct blk_move, list);
2671 ext2fs_free_mem(&bmv);
2676 static int resize_inode(ext2_filsys fs, unsigned long new_size)
2679 int new_ino_blks_per_grp;
2680 ext2fs_block_bitmap bmap;
2682 retval = ext2fs_read_inode_bitmap(fs);
2684 fputs(_("Failed to read inode bitmap\n"), stderr);
2687 retval = ext2fs_read_block_bitmap(fs);
2689 fputs(_("Failed to read block bitmap\n"), stderr);
2692 INIT_LIST_HEAD(&blk_move_list);
2695 new_ino_blks_per_grp = ext2fs_div_ceil(
2696 EXT2_INODES_PER_GROUP(fs->super)*
2700 /* We may change the file system.
2701 * Mark the file system as invalid so that
2702 * the user is prompted to run fsck.
2704 fs->super->s_state &= ~EXT2_VALID_FS;
2706 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
2709 fputs(_("Failed to allocate block bitmap when "
2710 "increasing inode size\n"), stderr);
2713 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap);
2715 fputs(_("Not enough space to increase inode size \n"), stderr);
2718 retval = move_block(fs, bmap);
2720 fputs(_("Failed to relocate blocks during inode resize \n"),
2724 retval = inode_scan_and_fix(fs, bmap);
2728 retval = group_desc_scan_and_fix(fs, bmap);
2732 retval = expand_inode_table(fs, new_size);
2736 ext2fs_calculate_summary_stats(fs);
2738 fs->super->s_state |= EXT2_VALID_FS;
2739 /* mark super block and block bitmap as dirty */
2740 ext2fs_mark_super_dirty(fs);
2741 ext2fs_mark_bb_dirty(fs);
2744 free_blk_move_list();
2745 ext2fs_free_block_bitmap(bmap);
2750 free_blk_move_list();
2751 ext2fs_free_block_bitmap(bmap);
2752 fputs(_("Error in resizing the inode size.\n"
2753 "Run e2undo to undo the "
2754 "file system changes. \n"), stderr);
2759 static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
2761 errcode_t retval = 0;
2762 const char *tdb_dir;
2763 char *tdb_file = NULL;
2764 char *dev_name, *tmp_name;
2766 /* (re)open a specific undo file */
2767 if (undo_file && undo_file[0] != 0) {
2768 retval = set_undo_io_backing_manager(*io_ptr);
2771 *io_ptr = undo_io_manager;
2772 retval = set_undo_io_backup_file(undo_file);
2775 printf(_("Overwriting existing filesystem; this can be undone "
2776 "using the command:\n"
2777 " e2undo %s %s\n\n"),
2783 * Configuration via a conf file would be
2786 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2788 tdb_dir = "/var/lib/e2fsprogs";
2790 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2791 access(tdb_dir, W_OK))
2794 tmp_name = strdup(name);
2797 dev_name = basename(tmp_name);
2798 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
2803 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
2806 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2808 com_err(program_name, retval,
2809 _("while trying to delete %s"), tdb_file);
2813 retval = set_undo_io_backing_manager(*io_ptr);
2816 *io_ptr = undo_io_manager;
2817 retval = set_undo_io_backup_file(tdb_file);
2820 printf(_("Overwriting existing filesystem; this can be undone "
2821 "using the command:\n"
2822 " e2undo %s %s\n\n"),
2830 com_err("tune2fs", retval, "while trying to setup undo file\n");
2835 fs_update_journal_user(struct ext2_super_block *sb, __u8 old_uuid[UUID_SIZE])
2837 int retval, nr_users, start;
2838 journal_superblock_t *jsb;
2842 char uuid[UUID_STR_SIZE];
2843 char buf[SUPERBLOCK_SIZE] __attribute__ ((aligned(8)));
2845 if (!ext2fs_has_feature_journal(sb) || uuid_is_null(sb->s_journal_uuid))
2848 uuid_unparse(sb->s_journal_uuid, uuid);
2849 journal_path = blkid_get_devname(NULL, "UUID", uuid);
2853 retval = ext2fs_open2(journal_path, io_options,
2854 EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_RW,
2855 0, 0, unix_io_manager, &jfs);
2857 com_err(program_name, retval,
2858 _("while trying to open %s"),
2863 retval = get_journal_sb(jfs, buf);
2865 if (retval == EXT2_ET_UNSUPP_FEATURE)
2866 fprintf(stderr, _("%s is not a journal device.\n"),
2871 jsb = (journal_superblock_t *) buf;
2872 /* Find the filesystem UUID */
2873 nr_users = ntohl(jsb->s_nr_users);
2874 if (nr_users > JBD2_USERS_MAX) {
2875 fprintf(stderr, _("Journal superblock is corrupted, nr_users\n"
2876 "is too high (%d).\n"), nr_users);
2877 return EXT2_ET_CORRUPT_JOURNAL_SB;
2880 j_uuid = journal_user(old_uuid, jsb->s_users, nr_users);
2881 if (j_uuid == NULL) {
2882 fputs(_("Filesystem's UUID not found on journal device.\n"),
2884 return EXT2_ET_LOAD_EXT_JOURNAL;
2887 memcpy(j_uuid, sb->s_uuid, UUID_SIZE);
2889 start = ext2fs_journal_sb_start(jfs->blocksize);
2890 /* Write back the journal superblock */
2891 retval = io_channel_write_blk64(jfs->io, start, -SUPERBLOCK_SIZE, buf);
2893 com_err(program_name, retval,
2894 "while writing journal superblock.");
2903 #ifndef BUILD_AS_LIB
2904 int main(int argc, char **argv)
2906 int tune2fs_main(int argc, char **argv)
2907 #endif /* BUILD_AS_LIB */
2911 struct ext2_super_block *sb;
2912 io_manager io_ptr, io_ptr_orig = NULL;
2914 char default_undo_file[1] = { 0 };
2917 setlocale(LC_MESSAGES, "");
2918 setlocale(LC_CTYPE, "");
2919 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2920 textdomain(NLS_CAT_NAME);
2921 set_com_err_gettext(gettext);
2924 program_name = *argv;
2925 add_error_table(&et_ext2_error_table);
2927 #ifdef CONFIG_BUILD_FINDFS
2928 if (strcmp(get_progname(argv[0]), "findfs") == 0)
2929 do_findfs(argc, argv);
2931 if (strcmp(get_progname(argv[0]), "e2label") == 0)
2932 parse_e2label_options(argc, argv);
2934 parse_tune2fs_options(argc, argv);
2936 #ifdef CONFIG_TESTIO_DEBUG
2937 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) {
2938 io_ptr = test_io_manager;
2939 test_io_backing_manager = unix_io_manager;
2942 io_ptr = unix_io_manager;
2945 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag)
2946 open_flag |= EXT2_FLAG_SKIP_MMP;
2948 open_flag |= EXT2_FLAG_64BITS | EXT2_FLAG_JOURNAL_DEV_OK;
2950 /* keep the filesystem struct around to dump MMP data */
2951 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR;
2953 retval = ext2fs_open2(device_name, io_options, open_flag,
2956 com_err(program_name, retval,
2957 _("while trying to open %s"),
2959 if (retval == EXT2_ET_MMP_FSCK_ON ||
2960 retval == EXT2_ET_MMP_UNKNOWN_SEQ)
2961 dump_mmp_msg(fs->mmp_buf,
2962 _("If you are sure the filesystem "
2963 "is not in use on any node, run:\n"
2964 "'tune2fs -f -E clear_mmp {device}'\n"));
2965 else if (retval == EXT2_ET_MMP_FAILED)
2966 dump_mmp_msg(fs->mmp_buf, NULL);
2967 else if (retval == EXT2_ET_MMP_MAGIC_INVALID)
2969 _("MMP block magic is bad. Try to fix it by "
2970 "running:\n'e2fsck -f %s'\n"), device_name);
2971 else if (retval == EXT2_ET_BAD_MAGIC)
2972 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
2973 else if (retval != EXT2_ET_MMP_FAILED)
2974 fprintf(stderr, "%s",
2975 _("Couldn't find valid filesystem superblock.\n"));
2980 if (ext2fs_has_feature_journal_dev(fs->super)) {
2981 fprintf(stderr, "%s", _("Cannot modify a journal device.\n"));
2985 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
2989 * Check the inode size is right so we can issue an
2990 * error message and bail before setting up the tdb
2993 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) {
2994 fprintf(stderr, _("The inode size is already %lu\n"),
2999 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
3000 fprintf(stderr, "%s",
3001 _("Shrinking inode size is not supported\n"));
3005 if (new_inode_size > fs->blocksize) {
3006 fprintf(stderr, _("Invalid inode size %lu (max %d)\n"),
3007 new_inode_size, fs->blocksize);
3011 check_fsck_needed(fs,
3012 _("Resizing inodes could take some time."));
3014 * If inode resize is requested use the
3017 undo_file = default_undo_file;
3020 /* Set up an undo file */
3021 if (undo_file && io_ptr_orig == NULL) {
3022 io_ptr_orig = io_ptr;
3023 retval = tune2fs_setup_tdb(device_name, &io_ptr);
3028 if (io_ptr != io_ptr_orig) {
3029 ext2fs_close_free(&fs);
3035 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
3038 /* For e2label emulation */
3039 printf("%.*s\n", EXT2_LEN_STR(sb->s_volume_name));
3040 remove_error_table(&et_ext2_error_table);
3044 retval = ext2fs_check_if_mounted(device_name, &mount_flags);
3046 com_err("ext2fs_check_if_mount", retval,
3047 _("while determining whether %s is mounted."),
3054 /* Warn if file system needs recovery and it is opened for writing. */
3055 if ((open_flag & EXT2_FLAG_RW) && !(mount_flags & EXT2_MF_MOUNTED) &&
3056 (sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
3057 (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER)) {
3059 _("Warning: The journal is dirty. You may wish to replay the journal like:\n\n"
3060 "\te2fsck -E journal_only %s\n\n"
3061 "then rerun this command. Otherwise, any changes made may be overwritten\n"
3062 "by journal recovery.\n"), device_name);
3065 /* Recover the journal if possible. */
3066 if ((open_flag & EXT2_FLAG_RW) && !(mount_flags & (EXT2_MF_BUSY | EXT2_MF_MOUNTED)) &&
3067 ext2fs_has_feature_journal_needs_recovery(fs->super)) {
3070 printf(_("Recovering journal.\n"));
3071 err = ext2fs_run_ext3_journal(&fs);
3073 com_err("tune2fs", err, "while recovering journal.\n");
3074 printf(_("Please run e2fsck -fy %s.\n"), argv[1]);
3076 ext2fs_close_free(&fs);
3083 /* Normally we only need to write out the superblock */
3084 fs->flags |= EXT2_FLAG_SUPER_ONLY;
3087 sb->s_max_mnt_count = max_mount_count;
3088 ext2fs_mark_super_dirty(fs);
3089 printf(_("Setting maximal mount count to %d\n"),
3093 sb->s_mnt_count = mount_count;
3094 ext2fs_mark_super_dirty(fs);
3095 printf(_("Setting current mount count to %d\n"), mount_count);
3098 sb->s_errors = errors;
3099 ext2fs_mark_super_dirty(fs);
3100 printf(_("Setting error behavior to %d\n"), errors);
3103 sb->s_def_resgid = resgid;
3104 ext2fs_mark_super_dirty(fs);
3105 printf(_("Setting reserved blocks gid to %lu\n"), resgid);
3108 if ((unsigned long long)interval >= (1ULL << 32)) {
3109 com_err(program_name, 0,
3110 _("interval between checks is too big (%lu)"),
3115 sb->s_checkinterval = interval;
3116 ext2fs_mark_super_dirty(fs);
3117 printf(_("Setting interval between checks to %lu seconds\n"),
3121 ext2fs_r_blocks_count_set(sb, reserved_ratio *
3122 ext2fs_blocks_count(sb) / 100.0);
3123 ext2fs_mark_super_dirty(fs);
3124 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"),
3125 reserved_ratio, ext2fs_r_blocks_count(sb));
3128 if (reserved_blocks > ext2fs_blocks_count(sb)/2) {
3129 com_err(program_name, 0,
3130 _("reserved blocks count is too big (%llu)"),
3135 ext2fs_r_blocks_count_set(sb, reserved_blocks);
3136 ext2fs_mark_super_dirty(fs);
3137 printf(_("Setting reserved blocks count to %llu\n"),
3141 if (ext2fs_has_feature_sparse_super(sb)) {
3142 fputs(_("\nThe filesystem already has sparse "
3143 "superblocks.\n"), stderr);
3144 } else if (ext2fs_has_feature_meta_bg(sb)) {
3145 fputs(_("\nSetting the sparse superblock flag not "
3146 "supported\nfor filesystems with "
3147 "the meta_bg feature enabled.\n"),
3152 ext2fs_set_feature_sparse_super(sb);
3153 sb->s_state &= ~EXT2_VALID_FS;
3154 ext2fs_mark_super_dirty(fs);
3155 printf(_("\nSparse superblock flag set. %s"),
3160 fputs(_("\nClearing the sparse superblock flag not supported.\n"),
3166 sb->s_lastcheck = last_check_time;
3167 ext2fs_mark_super_dirty(fs);
3168 printf(_("Setting time filesystem last checked to %s\n"),
3169 ctime(&last_check_time));
3172 sb->s_def_resuid = resuid;
3173 ext2fs_mark_super_dirty(fs);
3174 printf(_("Setting reserved blocks uid to %lu\n"), resuid);
3177 if (strlen(new_label) > sizeof(sb->s_volume_name))
3178 fputs(_("Warning: label too long, truncating.\n"),
3180 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
3181 strncpy(sb->s_volume_name, new_label,
3182 sizeof(sb->s_volume_name));
3183 ext2fs_mark_super_dirty(fs);
3186 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
3187 strncpy(sb->s_last_mounted, new_last_mounted,
3188 sizeof(sb->s_last_mounted));
3189 ext2fs_mark_super_dirty(fs);
3192 rc = update_mntopts(fs, mntopts_cmd);
3197 rc = update_feature_set(fs, features_cmd);
3202 rc = parse_extended_opts(fs, extended_cmd);
3205 if (clear_mmp && !f_flag) {
3206 fputs(_("Error in using clear_mmp. "
3207 "It must be used with -f\n"),
3213 rc = ext2fs_mmp_clear(fs);
3216 if (journal_size || journal_device) {
3217 rc = add_journal(fs);
3223 if (mount_flags & EXT2_MF_MOUNTED) {
3224 fputs(_("The quota feature may only be changed when "
3225 "the filesystem is unmounted.\n"), stderr);
3229 handle_quota_options(fs);
3235 char buf[SUPERBLOCK_SIZE] __attribute__ ((aligned(8)));
3236 __u8 old_uuid[UUID_SIZE];
3238 if (ext2fs_has_feature_stable_inodes(fs->super)) {
3239 fputs(_("Cannot change the UUID of this filesystem "
3240 "because it has the stable_inodes feature "
3241 "flag.\n"), stderr);
3245 if (!ext2fs_has_feature_csum_seed(fs->super) &&
3246 (ext2fs_has_feature_metadata_csum(fs->super) ||
3247 ext2fs_has_feature_ea_inode(fs->super))) {
3248 check_fsck_needed(fs,
3249 _("Setting the UUID on this "
3250 "filesystem could take some time."));
3251 rewrite_checksums = REWRITE_ALL;
3254 if (ext2fs_has_group_desc_csum(fs)) {
3256 * Changing the UUID on a metadata_csum FS requires
3257 * rewriting all metadata, which can race with a
3258 * mounted fs. Don't allow that unless we're saving
3259 * the checksum seed.
3261 if ((mount_flags & EXT2_MF_MOUNTED) &&
3262 !ext2fs_has_feature_csum_seed(fs->super) &&
3263 ext2fs_has_feature_metadata_csum(fs->super)) {
3264 fputs(_("The UUID may only be "
3265 "changed when the filesystem is "
3266 "unmounted.\n"), stderr);
3267 fputs(_("If you only use kernels newer than "
3268 "v4.4, run 'tune2fs -O "
3269 "metadata_csum_seed' and re-run this "
3270 "command.\n"), stderr);
3271 try_confirm_csum_seed_support();
3276 * Determine if the block group checksums are
3277 * correct so we know whether or not to set
3280 for (i = 0; i < fs->group_desc_count; i++)
3281 if (!ext2fs_group_desc_csum_verify(fs, i))
3283 if (i >= fs->group_desc_count)
3287 memcpy(old_uuid, sb->s_uuid, UUID_SIZE);
3288 if ((strcasecmp(new_UUID, "null") == 0) ||
3289 (strcasecmp(new_UUID, "clear") == 0)) {
3290 uuid_clear(sb->s_uuid);
3291 } else if (strcasecmp(new_UUID, "time") == 0) {
3292 uuid_generate_time(sb->s_uuid);
3293 } else if (strcasecmp(new_UUID, "random") == 0) {
3294 uuid_generate(sb->s_uuid);
3295 } else if (uuid_parse(new_UUID, sb->s_uuid)) {
3296 com_err(program_name, 0, "%s",
3297 _("Invalid UUID format\n"));
3301 ext2fs_init_csum_seed(fs);
3303 for (i = 0; i < fs->group_desc_count; i++)
3304 ext2fs_group_desc_csum_set(fs, i);
3305 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
3308 /* If this is a journal dev, we need to copy UUID into jsb */
3309 if (!(rc = get_journal_sb(fs, buf))) {
3310 journal_superblock_t *jsb;
3312 jsb = (journal_superblock_t *) buf;
3313 fputs(_("Need to update journal superblock.\n"), stdout);
3314 memcpy(jsb->s_uuid, sb->s_uuid, sizeof(sb->s_uuid));
3316 /* Writeback the journal superblock */
3317 if ((rc = io_channel_write_blk64(fs->io,
3318 ext2fs_journal_sb_start(fs->blocksize),
3319 -SUPERBLOCK_SIZE, buf)))
3321 } else if (rc != EXT2_ET_UNSUPP_FEATURE)
3324 rc = 0; /** Reset rc to avoid ext2fs_mmp_stop() */
3326 if ((rc = fs_update_journal_user(sb, old_uuid)))
3330 ext2fs_mark_super_dirty(fs);
3334 if (mount_flags & EXT2_MF_MOUNTED) {
3335 fputs(_("The inode size may only be "
3336 "changed when the filesystem is "
3337 "unmounted.\n"), stderr);
3341 if (ext2fs_has_feature_flex_bg(fs->super)) {
3342 fputs(_("Changing the inode size not supported for "
3343 "filesystems with the flex_bg\n"
3344 "feature enabled.\n"),
3350 * We want to update group descriptor also
3351 * with the new free inode count
3353 if (rewrite_checksums)
3354 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3355 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
3356 retval = resize_inode(fs, new_inode_size);
3357 if (rewrite_checksums)
3358 fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
3360 printf(_("Setting inode size %lu\n"),
3362 rewrite_checksums = REWRITE_ALL;
3364 printf("%s", _("Failed to change inode size\n"));
3370 if (rewrite_checksums)
3371 rewrite_metadata_checksums(fs, rewrite_checksums);
3376 sb->s_raid_stride = stride;
3377 ext2fs_mark_super_dirty(fs);
3378 printf(_("Setting stride size to %d\n"), stride);
3380 if (stripe_width_set) {
3381 sb->s_raid_stripe_width = stripe_width;
3382 ext2fs_mark_super_dirty(fs);
3383 printf(_("Setting stripe width to %d\n"), stripe_width);
3385 if (ext_mount_opts) {
3386 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts,
3387 sizeof(fs->super->s_mount_opts));
3388 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0;
3389 ext2fs_mark_super_dirty(fs);
3390 printf(_("Setting extended default mount options to '%s'\n"),
3392 free(ext_mount_opts);
3396 remove_error_table(&et_ext2_error_table);
3400 ext2fs_mmp_stop(fs);
3401 #ifndef BUILD_AS_LIB
3407 convert_64bit(fs, feature_64bit);
3408 return (ext2fs_close_free(&fs) ? 1 : 0);