2 * tune2fs.c - Change the file system parameters on an ext2 file system
4 * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
5 * Laboratoire MASI, Institut Blaise Pascal
6 * Universite Pierre et Marie Curie (Paris VI)
8 * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o.
11 * This file may be redistributed under the terms of the GNU Public
19 * 93/10/31 - Added the -c option to change the maximal mount counts
20 * 93/12/14 - Added -l flag to list contents of superblock
21 * M.J.E. Mol (marcel@duteca.et.tudelft.nl)
22 * F.W. ten Wolde (franky@duteca.et.tudelft.nl)
23 * 93/12/29 - Added the -e option to change errors behavior
24 * 94/02/27 - Ported to use the ext2fs library
25 * 94/03/06 - Added the checks interval from Uwe Ohse (uwe@tirka.gun.de)
28 #define _XOPEN_SOURCE 600 /* for inclusion of strptime() */
44 #include <strings.h> /* for strcasecmp() */
46 #define _BSD_SOURCE /* for inclusion of strcasecmp() via <string.h> */
51 #include <sys/types.h>
55 #include "ext2fs/ext2_fs.h"
56 #include "ext2fs/ext2fs.h"
57 #include "et/com_err.h"
58 #include "uuid/uuid.h"
62 #include "blkid/blkid.h"
63 #include "quota/mkquota.h"
65 #include "../version.h"
66 #include "nls-enable.h"
68 #define QOPT_ENABLE (1)
69 #define QOPT_DISABLE (-1)
71 extern int ask_yn(const char *string
, int def
);
73 const char *program_name
= "tune2fs";
75 char *new_label
, *new_last_mounted
, *new_UUID
;
77 static int c_flag
, C_flag
, e_flag
, f_flag
, g_flag
, i_flag
, l_flag
, L_flag
;
78 static int m_flag
, M_flag
, Q_flag
, r_flag
, s_flag
= -1, u_flag
, U_flag
, T_flag
;
81 static time_t last_check_time
;
82 static int print_label
;
83 static int max_mount_count
, mount_count
, mount_flags
;
84 static unsigned long interval
;
85 static blk64_t reserved_blocks
;
86 static double reserved_ratio
;
87 static unsigned long resgid
, resuid
;
88 static unsigned short errors
;
90 static char *features_cmd
;
91 static char *mntopts_cmd
;
92 static int stride
, stripe_width
;
93 static int stride_set
, stripe_width_set
;
94 static char *extended_cmd
;
95 static unsigned long new_inode_size
;
96 static char *ext_mount_opts
;
97 static int usrquota
, grpquota
;
99 int journal_size
, journal_flags
;
100 char *journal_device
;
101 static blk64_t journal_location
= ~0LL;
103 static struct list_head blk_move_list
;
106 struct list_head list
;
112 static const char *please_fsck
= N_("Please run e2fsck on the filesystem.\n");
114 #ifdef CONFIG_BUILD_FINDFS
115 void do_findfs(int argc
, char **argv
);
118 static void usage(void)
121 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] "
123 "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
124 "\t[-m reserved_blocks_percent] "
125 "[-o [^]mount_options[,...]] [-p mmp_update_interval]\n"
126 "\t[-r reserved_blocks_count] [-u user] [-C mount_count] "
127 "[-L volume_label]\n"
128 "\t[-M last_mounted_dir] [-O [^]feature[,...]]\n"
130 "\t[-Q quota_options]\n"
132 "\t[-E extended-option[,...]] [-T last_check_time] "
133 "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name
);
137 static __u32 ok_features
[3] = {
139 EXT3_FEATURE_COMPAT_HAS_JOURNAL
|
140 EXT2_FEATURE_COMPAT_DIR_INDEX
,
142 EXT2_FEATURE_INCOMPAT_FILETYPE
|
143 EXT3_FEATURE_INCOMPAT_EXTENTS
|
144 EXT4_FEATURE_INCOMPAT_FLEX_BG
|
145 EXT4_FEATURE_INCOMPAT_MMP
,
147 EXT2_FEATURE_RO_COMPAT_LARGE_FILE
|
148 EXT4_FEATURE_RO_COMPAT_HUGE_FILE
|
149 EXT4_FEATURE_RO_COMPAT_DIR_NLINK
|
150 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE
|
151 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
|
153 EXT4_FEATURE_RO_COMPAT_QUOTA
|
155 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
158 static __u32 clear_ok_features
[3] = {
160 EXT3_FEATURE_COMPAT_HAS_JOURNAL
|
161 EXT2_FEATURE_COMPAT_RESIZE_INODE
|
162 EXT2_FEATURE_COMPAT_DIR_INDEX
,
164 EXT2_FEATURE_INCOMPAT_FILETYPE
|
165 EXT4_FEATURE_INCOMPAT_FLEX_BG
|
166 EXT4_FEATURE_INCOMPAT_MMP
,
168 EXT2_FEATURE_RO_COMPAT_LARGE_FILE
|
169 EXT4_FEATURE_RO_COMPAT_HUGE_FILE
|
170 EXT4_FEATURE_RO_COMPAT_DIR_NLINK
|
171 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE
|
173 EXT4_FEATURE_RO_COMPAT_QUOTA
|
175 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
179 * Remove an external journal from the filesystem
181 static int remove_journal_device(ext2_filsys fs
)
186 journal_superblock_t
*jsb
;
189 int commit_remove_journal
= 0;
193 commit_remove_journal
= 1; /* force removal even if error */
195 uuid_unparse(fs
->super
->s_journal_uuid
, buf
);
196 journal_path
= blkid_get_devname(NULL
, "UUID", buf
);
200 ext2fs_find_block_device(fs
->super
->s_journal_dev
);
202 goto no_valid_journal
;
205 #ifdef CONFIG_TESTIO_DEBUG
206 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
207 io_ptr
= test_io_manager
;
208 test_io_backing_manager
= unix_io_manager
;
211 io_ptr
= unix_io_manager
;
212 retval
= ext2fs_open(journal_path
, EXT2_FLAG_RW
|
213 EXT2_FLAG_JOURNAL_DEV_OK
, 0,
214 fs
->blocksize
, io_ptr
, &jfs
);
216 com_err(program_name
, retval
, "%s",
217 _("while trying to open external journal"));
218 goto no_valid_journal
;
220 if (!(jfs
->super
->s_feature_incompat
&
221 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
)) {
222 fprintf(stderr
, _("%s is not a journal device.\n"),
224 goto no_valid_journal
;
227 /* Get the journal superblock */
228 if ((retval
= io_channel_read_blk64(jfs
->io
, 1, -1024, buf
))) {
229 com_err(program_name
, retval
, "%s",
230 _("while reading journal superblock"));
231 goto no_valid_journal
;
234 jsb
= (journal_superblock_t
*) buf
;
235 if ((jsb
->s_header
.h_magic
!= (unsigned)ntohl(JFS_MAGIC_NUMBER
)) ||
236 (jsb
->s_header
.h_blocktype
!= (unsigned)ntohl(JFS_SUPERBLOCK_V2
))) {
237 fputs(_("Journal superblock not found!\n"), stderr
);
238 goto no_valid_journal
;
241 /* Find the filesystem UUID */
242 nr_users
= ntohl(jsb
->s_nr_users
);
243 for (i
= 0; i
< nr_users
; i
++) {
244 if (memcmp(fs
->super
->s_uuid
, &jsb
->s_users
[i
* 16], 16) == 0)
248 fputs(_("Filesystem's UUID not found on journal device.\n"),
250 commit_remove_journal
= 1;
251 goto no_valid_journal
;
254 for (i
= 0; i
< nr_users
; i
++)
255 memcpy(&jsb
->s_users
[i
* 16], &jsb
->s_users
[(i
+ 1) * 16], 16);
256 jsb
->s_nr_users
= htonl(nr_users
);
258 /* Write back the journal superblock */
259 if ((retval
= io_channel_write_blk64(jfs
->io
, 1, -1024, buf
))) {
260 com_err(program_name
, retval
,
261 "while writing journal superblock.");
262 goto no_valid_journal
;
265 commit_remove_journal
= 1;
268 if (commit_remove_journal
== 0) {
269 fputs(_("Cannot locate journal device. It was NOT removed\n"
270 "Use -f option to remove missing journal device.\n"),
274 fs
->super
->s_journal_dev
= 0;
275 uuid_clear(fs
->super
->s_journal_uuid
);
276 ext2fs_mark_super_dirty(fs
);
277 fputs(_("Journal removed\n"), stdout
);
283 /* Helper function for remove_journal_inode */
284 static int release_blocks_proc(ext2_filsys fs
, blk64_t
*blocknr
,
285 e2_blkcnt_t blockcnt
EXT2FS_ATTR((unused
)),
286 blk64_t ref_block
EXT2FS_ATTR((unused
)),
287 int ref_offset
EXT2FS_ATTR((unused
)),
288 void *private EXT2FS_ATTR((unused
)))
294 ext2fs_unmark_block_bitmap2(fs
->block_map
, block
);
295 group
= ext2fs_group_of_blk2(fs
, block
);
296 ext2fs_bg_free_blocks_count_set(fs
, group
, ext2fs_bg_free_blocks_count(fs
, group
) + 1);
297 ext2fs_group_desc_csum_set(fs
, group
);
298 ext2fs_free_blocks_count_add(fs
->super
, EXT2FS_CLUSTER_RATIO(fs
));
303 * Remove the journal inode from the filesystem
305 static errcode_t
remove_journal_inode(ext2_filsys fs
)
307 struct ext2_inode inode
;
309 ino_t ino
= fs
->super
->s_journal_inum
;
311 retval
= ext2fs_read_inode(fs
, ino
, &inode
);
313 com_err(program_name
, retval
, "%s",
314 _("while reading journal inode"));
317 if (ino
== EXT2_JOURNAL_INO
) {
318 retval
= ext2fs_read_bitmaps(fs
);
320 com_err(program_name
, retval
, "%s",
321 _("while reading bitmaps"));
324 retval
= ext2fs_block_iterate3(fs
, ino
,
325 BLOCK_FLAG_READ_ONLY
, NULL
,
326 release_blocks_proc
, NULL
);
328 com_err(program_name
, retval
, "%s",
329 _("while clearing journal inode"));
332 memset(&inode
, 0, sizeof(inode
));
333 ext2fs_mark_bb_dirty(fs
);
334 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
336 inode
.i_flags
&= ~EXT2_IMMUTABLE_FL
;
337 retval
= ext2fs_write_inode(fs
, ino
, &inode
);
339 com_err(program_name
, retval
, "%s",
340 _("while writing journal inode"));
343 fs
->super
->s_journal_inum
= 0;
344 ext2fs_mark_super_dirty(fs
);
350 * Update the default mount options
352 static int update_mntopts(ext2_filsys fs
, char *mntopts
)
354 struct ext2_super_block
*sb
= fs
->super
;
356 if (e2p_edit_mntopts(mntopts
, &sb
->s_default_mount_opts
, ~0)) {
357 fprintf(stderr
, _("Invalid mount option set: %s\n"),
361 ext2fs_mark_super_dirty(fs
);
366 static int check_fsck_needed(ext2_filsys fs
)
368 if (fs
->super
->s_state
& EXT2_VALID_FS
)
370 printf("\n%s\n", _(please_fsck
));
371 if (mount_flags
& EXT2_MF_READONLY
)
372 printf("%s", _("(and reboot afterwards!)\n"));
376 static void request_fsck_afterwards(ext2_filsys fs
)
378 static int requested
= 0;
382 fs
->super
->s_state
&= ~EXT2_VALID_FS
;
383 printf("\n%s\n", _(please_fsck
));
384 if (mount_flags
& EXT2_MF_READONLY
)
385 printf("%s", _("(and reboot afterwards!)\n"));
389 * Update the feature set as provided by the user.
391 static int update_feature_set(ext2_filsys fs
, char *features
)
393 struct ext2_super_block
*sb
= fs
->super
;
394 struct ext2_group_desc
*gd
;
395 __u32 old_features
[3];
398 unsigned int mask_err
;
400 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
401 ((&sb->s_feature_compat)[(type)] & (mask)))
402 #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
403 !((&sb->s_feature_compat)[(type)] & (mask)))
404 #define FEATURE_CHANGED(type, mask) ((mask) & \
405 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
407 old_features
[E2P_FEATURE_COMPAT
] = sb
->s_feature_compat
;
408 old_features
[E2P_FEATURE_INCOMPAT
] = sb
->s_feature_incompat
;
409 old_features
[E2P_FEATURE_RO_INCOMPAT
] = sb
->s_feature_ro_compat
;
411 if (e2p_edit_feature2(features
, &sb
->s_feature_compat
,
412 ok_features
, clear_ok_features
,
413 &type_err
, &mask_err
)) {
416 _("Invalid filesystem option set: %s\n"),
418 else if (type_err
& E2P_FEATURE_NEGATE_FLAG
)
419 fprintf(stderr
, _("Clearing filesystem feature '%s' "
421 e2p_feature2string(type_err
&
422 E2P_FEATURE_TYPE_MASK
,
425 fprintf(stderr
, _("Setting filesystem feature '%s' "
427 e2p_feature2string(type_err
, mask_err
));
431 if (FEATURE_OFF(E2P_FEATURE_COMPAT
, EXT3_FEATURE_COMPAT_HAS_JOURNAL
)) {
432 if ((mount_flags
& EXT2_MF_MOUNTED
) &&
433 !(mount_flags
& EXT2_MF_READONLY
)) {
434 fputs(_("The has_journal feature may only be "
435 "cleared when the filesystem is\n"
436 "unmounted or mounted "
437 "read-only.\n"), stderr
);
440 if ((sb
->s_feature_incompat
&
441 EXT3_FEATURE_INCOMPAT_RECOVER
) &&
443 fputs(_("The needs_recovery flag is set. "
444 "Please run e2fsck before clearing\n"
445 "the has_journal flag.\n"), stderr
);
448 if (sb
->s_journal_inum
) {
449 if (remove_journal_inode(fs
))
452 if (sb
->s_journal_dev
) {
453 if (remove_journal_device(fs
))
458 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT
,
459 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
)) {
460 if (sb
->s_feature_incompat
&
461 EXT2_FEATURE_INCOMPAT_META_BG
) {
462 fputs(_("Setting filesystem feature 'sparse_super' "
463 "not supported\nfor filesystems with "
464 "the meta_bg feature enabled.\n"),
470 if (FEATURE_ON(E2P_FEATURE_INCOMPAT
, EXT4_FEATURE_INCOMPAT_MMP
)) {
473 if ((mount_flags
& EXT2_MF_MOUNTED
) ||
474 (mount_flags
& EXT2_MF_READONLY
)) {
475 fputs(_("The multiple mount protection feature can't\n"
476 "be set if the filesystem is mounted or\n"
477 "read-only.\n"), stderr
);
481 error
= ext2fs_mmp_init(fs
);
483 fputs(_("\nError while enabling multiple mount "
484 "protection feature."), stderr
);
489 * We want to update group desc with the new free blocks count
491 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
493 printf(_("Multiple mount protection has been enabled "
494 "with update interval %ds.\n"),
495 sb
->s_mmp_update_interval
);
498 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT
, EXT4_FEATURE_INCOMPAT_MMP
)) {
501 if (mount_flags
& EXT2_MF_READONLY
) {
502 fputs(_("The multiple mount protection feature cannot\n"
503 "be disabled if the filesystem is readonly.\n"),
508 error
= ext2fs_read_bitmaps(fs
);
510 fputs(_("Error while reading bitmaps\n"), stderr
);
514 error
= ext2fs_mmp_read(fs
, sb
->s_mmp_block
, NULL
);
516 struct mmp_struct
*mmp_cmp
= fs
->mmp_cmp
;
518 if (error
== EXT2_ET_MMP_MAGIC_INVALID
)
519 printf(_("Magic number in MMP block does not "
520 "match. expected: %x, actual: %x\n"),
521 EXT4_MMP_MAGIC
, mmp_cmp
->mmp_magic
);
523 com_err(program_name
, error
, "%s",
524 _("while reading MMP block."));
528 /* We need to force out the group descriptors as well */
529 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
530 ext2fs_block_alloc_stats2(fs
, sb
->s_mmp_block
, -1);
533 sb
->s_mmp_update_interval
= 0;
536 if (FEATURE_ON(E2P_FEATURE_COMPAT
, EXT3_FEATURE_COMPAT_HAS_JOURNAL
)) {
538 * If adding a journal flag, let the create journal
539 * code below handle setting the flag and creating the
540 * journal. We supply a default size if necessary.
544 sb
->s_feature_compat
&= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL
;
547 if (FEATURE_ON(E2P_FEATURE_COMPAT
, EXT2_FEATURE_COMPAT_DIR_INDEX
)) {
548 if (!sb
->s_def_hash_version
)
549 sb
->s_def_hash_version
= EXT2_HASH_HALF_MD4
;
550 if (uuid_is_null((unsigned char *) sb
->s_hash_seed
))
551 uuid_generate((unsigned char *) sb
->s_hash_seed
);
554 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT
, EXT4_FEATURE_INCOMPAT_FLEX_BG
)) {
555 if (ext2fs_check_desc(fs
)) {
556 fputs(_("Clearing the flex_bg flag would "
557 "cause the the filesystem to be\n"
558 "inconsistent.\n"), stderr
);
563 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT
,
564 EXT4_FEATURE_RO_COMPAT_HUGE_FILE
)) {
565 if ((mount_flags
& EXT2_MF_MOUNTED
) &&
566 !(mount_flags
& EXT2_MF_READONLY
)) {
567 fputs(_("The huge_file feature may only be "
568 "cleared when the filesystem is\n"
569 "unmounted or mounted "
570 "read-only.\n"), stderr
);
575 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT
,
576 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
)) {
577 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
578 gd
= ext2fs_group_desc(fs
, fs
->group_desc
, i
);
579 gd
->bg_itable_unused
= 0;
580 gd
->bg_flags
= EXT2_BG_INODE_ZEROED
;
581 ext2fs_group_desc_csum_set(fs
, i
);
583 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
586 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT
,
587 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
)) {
588 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
589 gd
= ext2fs_group_desc(fs
, fs
->group_desc
, i
);
590 if ((gd
->bg_flags
& EXT2_BG_INODE_ZEROED
) == 0) {
592 * XXX what we really should do is zap
593 * uninitialized inode tables instead.
595 request_fsck_afterwards(fs
);
598 gd
->bg_itable_unused
= 0;
602 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
605 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT
,
606 EXT4_FEATURE_RO_COMPAT_QUOTA
)) {
608 * Set the Q_flag here and handle the quota options in the code
613 /* Enable both user quota and group quota by default */
614 usrquota
= QOPT_ENABLE
;
615 grpquota
= QOPT_ENABLE
;
617 sb
->s_feature_ro_compat
&= ~EXT4_FEATURE_RO_COMPAT_QUOTA
;
620 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT
,
621 EXT4_FEATURE_RO_COMPAT_QUOTA
)) {
623 * Set the Q_flag here and handle the quota options in the code
627 fputs(_("\nWarning: '^quota' option overrides '-Q'"
628 "arguments.\n"), stderr
);
630 /* Disable both user quota and group quota by default */
631 usrquota
= QOPT_DISABLE
;
632 grpquota
= QOPT_DISABLE
;
635 if (sb
->s_rev_level
== EXT2_GOOD_OLD_REV
&&
636 (sb
->s_feature_compat
|| sb
->s_feature_ro_compat
||
637 sb
->s_feature_incompat
))
638 ext2fs_update_dynamic_rev(fs
);
640 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT
,
641 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
) ||
642 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT
,
643 EXT4_FEATURE_RO_COMPAT_HUGE_FILE
) ||
644 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT
,
645 EXT2_FEATURE_INCOMPAT_FILETYPE
) ||
646 FEATURE_CHANGED(E2P_FEATURE_COMPAT
,
647 EXT2_FEATURE_COMPAT_RESIZE_INODE
) ||
648 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT
,
649 EXT2_FEATURE_RO_COMPAT_LARGE_FILE
))
650 request_fsck_afterwards(fs
);
652 if ((old_features
[E2P_FEATURE_COMPAT
] != sb
->s_feature_compat
) ||
653 (old_features
[E2P_FEATURE_INCOMPAT
] != sb
->s_feature_incompat
) ||
654 (old_features
[E2P_FEATURE_RO_INCOMPAT
] != sb
->s_feature_ro_compat
))
655 ext2fs_mark_super_dirty(fs
);
661 * Add a journal to the filesystem.
663 static int add_journal(ext2_filsys fs
)
665 unsigned long journal_blocks
;
670 if (fs
->super
->s_feature_compat
&
671 EXT3_FEATURE_COMPAT_HAS_JOURNAL
) {
672 fputs(_("The filesystem already has a journal.\n"), stderr
);
675 if (journal_device
) {
676 check_plausibility(journal_device
);
677 check_mount(journal_device
, 0, _("journal"));
678 #ifdef CONFIG_TESTIO_DEBUG
679 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
680 io_ptr
= test_io_manager
;
681 test_io_backing_manager
= unix_io_manager
;
684 io_ptr
= unix_io_manager
;
685 retval
= ext2fs_open(journal_device
, EXT2_FLAG_RW
|
686 EXT2_FLAG_JOURNAL_DEV_OK
, 0,
687 fs
->blocksize
, io_ptr
, &jfs
);
689 com_err(program_name
, retval
,
690 _("\n\twhile trying to open journal on %s\n"),
694 printf(_("Creating journal on device %s: "),
698 retval
= ext2fs_add_journal_device(fs
, jfs
);
701 com_err(program_name
, retval
,
702 _("while adding filesystem to journal on %s"),
706 fputs(_("done\n"), stdout
);
707 } else if (journal_size
) {
708 fputs(_("Creating journal inode: "), stdout
);
710 journal_blocks
= figure_journal_size(journal_size
, fs
);
712 if (journal_location_string
)
714 parse_num_blocks2(journal_location_string
,
715 fs
->super
->s_log_block_size
);
716 retval
= ext2fs_add_journal_inode2(fs
, journal_blocks
,
720 fprintf(stderr
, "\n");
721 com_err(program_name
, retval
, "%s",
722 _("\n\twhile trying to create journal file"));
725 fputs(_("done\n"), stdout
);
727 * If the filesystem wasn't mounted, we need to force
728 * the block group descriptors out.
730 if ((mount_flags
& EXT2_MF_MOUNTED
) == 0)
731 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
733 print_check_message(fs
->super
->s_max_mnt_count
,
734 fs
->super
->s_checkinterval
);
738 free(journal_device
);
742 static void handle_quota_options(ext2_filsys fs
)
747 if (!usrquota
&& !grpquota
)
751 quota_init_context(&qctx
, fs
, -1);
753 if (usrquota
== QOPT_ENABLE
|| grpquota
== QOPT_ENABLE
)
754 quota_compute_usage(qctx
);
756 if (usrquota
== QOPT_ENABLE
&& !fs
->super
->s_usr_quota_inum
) {
757 if ((qf_ino
= quota_file_exists(fs
, USRQUOTA
,
759 quota_update_limits(qctx
, qf_ino
, USRQUOTA
);
760 quota_write_inode(qctx
, USRQUOTA
);
761 } else if (usrquota
== QOPT_DISABLE
) {
762 quota_remove_inode(fs
, USRQUOTA
);
765 if (grpquota
== QOPT_ENABLE
&& !fs
->super
->s_grp_quota_inum
) {
766 if ((qf_ino
= quota_file_exists(fs
, GRPQUOTA
,
768 quota_update_limits(qctx
, qf_ino
, GRPQUOTA
);
769 quota_write_inode(qctx
, GRPQUOTA
);
770 } else if (grpquota
== QOPT_DISABLE
) {
771 quota_remove_inode(fs
, GRPQUOTA
);
774 quota_release_context(&qctx
);
776 if ((usrquota
== QOPT_ENABLE
) || (grpquota
== QOPT_ENABLE
)) {
777 fprintf(stderr
, "%s", _("\nWarning: the quota feature is still "
778 "under development\n"
779 "See https://ext4.wiki.kernel.org/"
780 "index.php/Quota for more information\n\n"));
781 fs
->super
->s_feature_ro_compat
|= EXT4_FEATURE_RO_COMPAT_QUOTA
;
782 ext2fs_mark_super_dirty(fs
);
783 } else if (!fs
->super
->s_usr_quota_inum
&&
784 !fs
->super
->s_grp_quota_inum
) {
785 fs
->super
->s_feature_ro_compat
&= ~EXT4_FEATURE_RO_COMPAT_QUOTA
;
786 ext2fs_mark_super_dirty(fs
);
793 static void parse_quota_opts(const char *opts
)
795 char *buf
, *token
, *next
, *p
;
801 fputs(_("Couldn't allocate memory to parse quota "
802 "options!\n"), stderr
);
806 for (token
= buf
; token
&& *token
; token
= next
) {
807 p
= strchr(token
, ',');
814 if (strcmp(token
, "usrquota") == 0) {
815 usrquota
= QOPT_ENABLE
;
816 } else if (strcmp(token
, "^usrquota") == 0) {
817 usrquota
= QOPT_DISABLE
;
818 } else if (strcmp(token
, "grpquota") == 0) {
819 grpquota
= QOPT_ENABLE
;
820 } else if (strcmp(token
, "^grpquota") == 0) {
821 grpquota
= QOPT_DISABLE
;
823 fputs(_("\nBad quota options specified.\n\n"
824 "Following valid quota options are available "
825 "(pass by separating with comma):\n"
837 static void parse_e2label_options(int argc
, char ** argv
)
839 if ((argc
< 2) || (argc
> 3)) {
840 fputs(_("Usage: e2label device [newlabel]\n"), stderr
);
843 io_options
= strchr(argv
[1], '?');
846 device_name
= blkid_get_devname(NULL
, argv
[1], NULL
);
848 com_err("e2label", 0, _("Unable to resolve '%s'"),
852 open_flag
= EXT2_FLAG_JOURNAL_DEV_OK
;
854 open_flag
|= EXT2_FLAG_RW
;
861 static time_t parse_time(char *str
)
865 if (strcmp(str
, "now") == 0) {
868 memset(&ts
, 0, sizeof(ts
));
870 strptime(str
, "%Y%m%d%H%M%S", &ts
);
872 sscanf(str
, "%4d%2d%2d%2d%2d%2d", &ts
.tm_year
, &ts
.tm_mon
,
873 &ts
.tm_mday
, &ts
.tm_hour
, &ts
.tm_min
, &ts
.tm_sec
);
876 if (ts
.tm_year
< 0 || ts
.tm_mon
< 0 || ts
.tm_mon
> 11 ||
877 ts
.tm_mday
< 0 || ts
.tm_mday
> 31 || ts
.tm_hour
> 23 ||
878 ts
.tm_min
> 59 || ts
.tm_sec
> 61)
881 if (ts
.tm_mday
== 0) {
882 com_err(program_name
, 0,
883 _("Couldn't parse date/time specifier: %s"),
888 return (mktime(&ts
));
891 static void parse_tune2fs_options(int argc
, char **argv
)
897 char optstring
[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:";
900 strcat(optstring
, "Q:");
904 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION
, E2FSPROGS_DATE
);
905 while ((c
= getopt(argc
, argv
, optstring
)) != EOF
)
908 max_mount_count
= strtol(optarg
, &tmp
, 0);
909 if (*tmp
|| max_mount_count
> 16000) {
910 com_err(program_name
, 0,
911 _("bad mounts count - %s"),
915 if (max_mount_count
== 0)
916 max_mount_count
= -1;
918 open_flag
= EXT2_FLAG_RW
;
921 mount_count
= strtoul(optarg
, &tmp
, 0);
922 if (*tmp
|| mount_count
> 16000) {
923 com_err(program_name
, 0,
924 _("bad mounts count - %s"),
929 open_flag
= EXT2_FLAG_RW
;
932 if (strcmp(optarg
, "continue") == 0)
933 errors
= EXT2_ERRORS_CONTINUE
;
934 else if (strcmp(optarg
, "remount-ro") == 0)
935 errors
= EXT2_ERRORS_RO
;
936 else if (strcmp(optarg
, "panic") == 0)
937 errors
= EXT2_ERRORS_PANIC
;
939 com_err(program_name
, 0,
940 _("bad error behavior - %s"),
945 open_flag
= EXT2_FLAG_RW
;
948 extended_cmd
= optarg
;
949 open_flag
|= EXT2_FLAG_RW
;
951 case 'f': /* Force */
955 resgid
= strtoul(optarg
, &tmp
, 0);
957 gr
= getgrnam(optarg
);
966 com_err(program_name
, 0,
967 _("bad gid/group name - %s"),
972 open_flag
= EXT2_FLAG_RW
;
975 interval
= strtoul(optarg
, &tmp
, 0);
988 case 'M': /* months! */
989 interval
*= 86400 * 30;
993 case 'W': /* weeks */
994 interval
*= 86400 * 7;
999 com_err(program_name
, 0,
1000 _("bad interval - %s"), optarg
);
1004 open_flag
= EXT2_FLAG_RW
;
1009 open_flag
= EXT2_FLAG_RW
;
1012 parse_journal_opts(optarg
);
1013 open_flag
= EXT2_FLAG_RW
;
1021 open_flag
|= EXT2_FLAG_RW
|
1022 EXT2_FLAG_JOURNAL_DEV_OK
;
1025 reserved_ratio
= strtod(optarg
, &tmp
);
1026 if (*tmp
|| reserved_ratio
> 50 ||
1027 reserved_ratio
< 0) {
1028 com_err(program_name
, 0,
1029 _("bad reserved block ratio - %s"),
1034 open_flag
= EXT2_FLAG_RW
;
1037 new_last_mounted
= optarg
;
1039 open_flag
= EXT2_FLAG_RW
;
1043 com_err(program_name
, 0, "%s",
1044 _("-o may only be specified once"));
1047 mntopts_cmd
= optarg
;
1048 open_flag
= EXT2_FLAG_RW
;
1052 com_err(program_name
, 0, "%s",
1053 _("-O may only be specified once"));
1056 features_cmd
= optarg
;
1057 open_flag
= EXT2_FLAG_RW
;
1062 parse_quota_opts(optarg
);
1063 open_flag
= EXT2_FLAG_RW
;
1067 reserved_blocks
= strtoul(optarg
, &tmp
, 0);
1069 com_err(program_name
, 0,
1070 _("bad reserved blocks count - %s"),
1075 open_flag
= EXT2_FLAG_RW
;
1077 case 's': /* Deprecated */
1078 s_flag
= atoi(optarg
);
1079 open_flag
= EXT2_FLAG_RW
;
1083 last_check_time
= parse_time(optarg
);
1084 open_flag
= EXT2_FLAG_RW
;
1087 resuid
= strtoul(optarg
, &tmp
, 0);
1089 pw
= getpwnam(optarg
);
1093 resuid
= pw
->pw_uid
;
1098 com_err(program_name
, 0,
1099 _("bad uid/user name - %s"),
1104 open_flag
= EXT2_FLAG_RW
;
1109 open_flag
= EXT2_FLAG_RW
|
1110 EXT2_FLAG_JOURNAL_DEV_OK
;
1113 new_inode_size
= strtoul(optarg
, &tmp
, 0);
1115 com_err(program_name
, 0,
1116 _("bad inode size - %s"),
1120 if (!((new_inode_size
&
1121 (new_inode_size
- 1)) == 0)) {
1122 com_err(program_name
, 0,
1123 _("Inode size must be a "
1124 "power of two- %s"),
1128 open_flag
= EXT2_FLAG_RW
;
1134 if (optind
< argc
- 1 || optind
== argc
)
1136 if (!open_flag
&& !l_flag
)
1138 io_options
= strchr(argv
[optind
], '?');
1141 device_name
= blkid_get_devname(NULL
, argv
[optind
], NULL
);
1143 com_err(program_name
, 0, _("Unable to resolve '%s'"),
1149 #ifdef CONFIG_BUILD_FINDFS
1150 void do_findfs(int argc
, char **argv
)
1155 (strncmp(argv
[1], "LABEL=", 6) && strncmp(argv
[1], "UUID=", 5))) {
1156 fprintf(stderr
, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
1159 dev
= blkid_get_devname(NULL
, argv
[1], NULL
);
1161 com_err("findfs", 0, _("Unable to resolve '%s'"),
1170 static int parse_extended_opts(ext2_filsys fs
, const char *opts
)
1172 char *buf
, *token
, *next
, *p
, *arg
;
1177 buf
= malloc(len
+1);
1179 fprintf(stderr
, "%s",
1180 _("Couldn't allocate memory to parse options!\n"));
1184 for (token
= buf
; token
&& *token
; token
= next
) {
1185 p
= strchr(token
, ',');
1191 arg
= strchr(token
, '=');
1196 if (strcmp(token
, "clear-mmp") == 0 ||
1197 strcmp(token
, "clear_mmp") == 0) {
1199 } else if (strcmp(token
, "mmp_update_interval") == 0) {
1205 intv
= strtoul(arg
, &p
, 0);
1208 _("Invalid mmp_update_interval: %s\n"),
1214 intv
= EXT4_MMP_UPDATE_INTERVAL
;
1215 } else if (intv
> EXT4_MMP_MAX_UPDATE_INTERVAL
) {
1217 _("mmp_update_interval too big: %lu\n"),
1222 printf(P_("Setting multiple mount protection update "
1223 "interval to %lu second\n",
1224 "Setting multiple mount protection update "
1225 "interval to %lu seconds\n", intv
),
1227 fs
->super
->s_mmp_update_interval
= intv
;
1228 ext2fs_mark_super_dirty(fs
);
1229 } else if (!strcmp(token
, "test_fs")) {
1230 fs
->super
->s_flags
|= EXT2_FLAGS_TEST_FILESYS
;
1231 printf("Setting test filesystem flag\n");
1232 ext2fs_mark_super_dirty(fs
);
1233 } else if (!strcmp(token
, "^test_fs")) {
1234 fs
->super
->s_flags
&= ~EXT2_FLAGS_TEST_FILESYS
;
1235 printf("Clearing test filesystem flag\n");
1236 ext2fs_mark_super_dirty(fs
);
1237 } else if (strcmp(token
, "stride") == 0) {
1242 stride
= strtoul(arg
, &p
, 0);
1245 _("Invalid RAID stride: %s\n"),
1251 } else if (strcmp(token
, "stripe-width") == 0 ||
1252 strcmp(token
, "stripe_width") == 0) {
1257 stripe_width
= strtoul(arg
, &p
, 0);
1260 _("Invalid RAID stripe-width: %s\n"),
1265 stripe_width_set
= 1;
1266 } else if (strcmp(token
, "hash_alg") == 0 ||
1267 strcmp(token
, "hash-alg") == 0) {
1272 hash_alg
= e2p_string2hash(arg
);
1275 _("Invalid hash algorithm: %s\n"),
1280 fs
->super
->s_def_hash_version
= hash_alg
;
1281 printf(_("Setting default hash algorithm "
1284 ext2fs_mark_super_dirty(fs
);
1285 } else if (!strcmp(token
, "mount_opts")) {
1290 if (strlen(arg
) >= sizeof(fs
->super
->s_mount_opts
)) {
1292 "Extended mount options too long\n");
1295 ext_mount_opts
= strdup(arg
);
1300 fprintf(stderr
, "%s", _("\nBad options specified.\n\n"
1301 "Extended options are separated by commas, "
1302 "and may take an argument which\n"
1303 "\tis set off by an equals ('=') sign.\n\n"
1304 "Valid extended options are:\n"
1306 "\thash_alg=<hash algorithm>\n"
1307 "\tmount_opts=<extended default mount options>\n"
1308 "\tstride=<RAID per-disk chunk size in blocks>\n"
1309 "\tstripe_width=<RAID stride*data disks in blocks>\n"
1321 * Fill in the block bitmap bmap with the information regarding the
1322 * blocks to be moved
1324 static int get_move_bitmaps(ext2_filsys fs
, int new_ino_blks_per_grp
,
1325 ext2fs_block_bitmap bmap
)
1329 ext2_badblocks_list bb_list
= 0;
1330 blk64_t j
, needed_blocks
= 0;
1331 blk64_t start_blk
, end_blk
;
1333 retval
= ext2fs_read_bb_inode(fs
, &bb_list
);
1337 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
1338 start_blk
= ext2fs_inode_table_loc(fs
, i
) +
1339 fs
->inode_blocks_per_group
;
1341 end_blk
= ext2fs_inode_table_loc(fs
, i
) +
1342 new_ino_blks_per_grp
;
1344 for (j
= start_blk
; j
< end_blk
; j
++) {
1345 if (ext2fs_test_block_bitmap2(fs
->block_map
, j
)) {
1347 * IF the block is a bad block we fail
1349 if (ext2fs_badblocks_list_test(bb_list
, j
)) {
1350 ext2fs_badblocks_list_free(bb_list
);
1354 ext2fs_mark_block_bitmap2(bmap
, j
);
1357 * We are going to use this block for
1358 * inode table. So mark them used.
1360 ext2fs_mark_block_bitmap2(fs
->block_map
, j
);
1363 needed_blocks
+= end_blk
- start_blk
;
1366 ext2fs_badblocks_list_free(bb_list
);
1367 if (needed_blocks
> ext2fs_free_blocks_count(fs
->super
))
1373 static int ext2fs_is_meta_block(ext2_filsys fs
, blk64_t blk
)
1376 group
= ext2fs_group_of_blk2(fs
, blk
);
1377 if (ext2fs_block_bitmap_loc(fs
, group
) == blk
)
1379 if (ext2fs_inode_bitmap_loc(fs
, group
) == blk
)
1384 static int ext2fs_is_block_in_group(ext2_filsys fs
, dgrp_t group
, blk64_t blk
)
1386 blk64_t start_blk
, end_blk
;
1387 start_blk
= fs
->super
->s_first_data_block
+
1388 EXT2_BLOCKS_PER_GROUP(fs
->super
) * group
;
1390 * We cannot get new block beyond end_blk for for the last block group
1391 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group
1393 end_blk
= start_blk
+ EXT2_BLOCKS_PER_GROUP(fs
->super
);
1394 if (blk
>= start_blk
&& blk
<= end_blk
)
1399 static int move_block(ext2_filsys fs
, ext2fs_block_bitmap bmap
)
1406 blk64_t blk
, new_blk
, goal
;
1407 struct blk_move
*bmv
;
1409 retval
= ext2fs_get_mem(fs
->blocksize
, &buf
);
1413 for (new_blk
= blk
= fs
->super
->s_first_data_block
;
1414 blk
< ext2fs_blocks_count(fs
->super
); blk
++) {
1415 if (!ext2fs_test_block_bitmap2(bmap
, blk
))
1418 if (ext2fs_is_meta_block(fs
, blk
)) {
1420 * If the block is mapping a fs meta data block
1421 * like group desc/block bitmap/inode bitmap. We
1422 * should find a block in the same group and fix
1423 * the respective fs metadata pointers. Otherwise
1426 group
= ext2fs_group_of_blk2(fs
, blk
);
1427 goal
= ext2fs_group_first_block2(fs
, group
);
1433 retval
= ext2fs_new_block2(fs
, goal
, NULL
, &new_blk
);
1437 /* new fs meta data block should be in the same group */
1438 if (meta_data
&& !ext2fs_is_block_in_group(fs
, group
, new_blk
)) {
1443 /* Mark this block as allocated */
1444 ext2fs_mark_block_bitmap2(fs
->block_map
, new_blk
);
1446 /* Add it to block move list */
1447 retval
= ext2fs_get_mem(sizeof(struct blk_move
), &bmv
);
1452 bmv
->new_loc
= new_blk
;
1454 list_add(&(bmv
->list
), &blk_move_list
);
1456 retval
= io_channel_read_blk64(fs
->io
, blk
, 1, buf
);
1460 retval
= io_channel_write_blk64(fs
->io
, new_blk
, 1, buf
);
1466 ext2fs_free_mem(&buf
);
1470 static blk64_t
translate_block(blk64_t blk
)
1472 struct list_head
*entry
;
1473 struct blk_move
*bmv
;
1475 list_for_each(entry
, &blk_move_list
) {
1476 bmv
= list_entry(entry
, struct blk_move
, list
);
1477 if (bmv
->old_loc
== blk
)
1478 return bmv
->new_loc
;
1484 static int process_block(ext2_filsys fs
EXT2FS_ATTR((unused
)),
1486 e2_blkcnt_t blockcnt
EXT2FS_ATTR((unused
)),
1487 blk64_t ref_block
EXT2FS_ATTR((unused
)),
1488 int ref_offset
EXT2FS_ATTR((unused
)),
1493 ext2fs_block_bitmap bmap
= (ext2fs_block_bitmap
) priv_data
;
1495 if (!ext2fs_test_block_bitmap2(bmap
, *block_nr
))
1497 new_blk
= translate_block(*block_nr
);
1499 *block_nr
= new_blk
;
1501 * This will force the ext2fs_write_inode in the iterator
1503 ret
|= BLOCK_CHANGED
;
1509 static int inode_scan_and_fix(ext2_filsys fs
, ext2fs_block_bitmap bmap
)
1511 errcode_t retval
= 0;
1514 char *block_buf
= 0;
1515 struct ext2_inode inode
;
1516 ext2_inode_scan scan
= NULL
;
1518 retval
= ext2fs_get_mem(fs
->blocksize
* 3, &block_buf
);
1522 retval
= ext2fs_open_inode_scan(fs
, 0, &scan
);
1527 retval
= ext2fs_get_next_inode(scan
, &ino
, &inode
);
1534 if (inode
.i_links_count
== 0)
1535 continue; /* inode not in use */
1538 * If we end up modifying the journal inode
1539 * the sb->s_jnl_blocks will differ. But a
1540 * subsequent e2fsck fixes that.
1541 * Do we need to fix this ??
1544 if (ext2fs_file_acl_block(fs
, &inode
) &&
1545 ext2fs_test_block_bitmap2(bmap
,
1546 ext2fs_file_acl_block(fs
, &inode
))) {
1547 blk
= translate_block(ext2fs_file_acl_block(fs
,
1552 ext2fs_file_acl_block_set(fs
, &inode
, blk
);
1555 * Write the inode to disk so that inode table
1558 retval
= ext2fs_write_inode(fs
, ino
, &inode
);
1563 if (!ext2fs_inode_has_valid_blocks2(fs
, &inode
))
1566 retval
= ext2fs_block_iterate3(fs
, ino
, 0, block_buf
,
1567 process_block
, bmap
);
1574 ext2fs_free_mem(&block_buf
);
1580 * We need to scan for inode and block bitmaps that may need to be
1581 * moved. This can take place if the filesystem was formatted for
1582 * RAID arrays using the mke2fs's extended option "stride".
1584 static int group_desc_scan_and_fix(ext2_filsys fs
, ext2fs_block_bitmap bmap
)
1587 blk64_t blk
, new_blk
;
1589 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
1590 blk
= ext2fs_block_bitmap_loc(fs
, i
);
1591 if (ext2fs_test_block_bitmap2(bmap
, blk
)) {
1592 new_blk
= translate_block(blk
);
1595 ext2fs_block_bitmap_loc_set(fs
, i
, new_blk
);
1598 blk
= ext2fs_inode_bitmap_loc(fs
, i
);
1599 if (ext2fs_test_block_bitmap2(bmap
, blk
)) {
1600 new_blk
= translate_block(blk
);
1603 ext2fs_inode_bitmap_loc_set(fs
, i
, new_blk
);
1609 static int expand_inode_table(ext2_filsys fs
, unsigned long new_ino_size
)
1614 int new_ino_blks_per_grp
;
1616 char *old_itable
= NULL
, *new_itable
= NULL
;
1617 char *tmp_old_itable
= NULL
, *tmp_new_itable
= NULL
;
1618 unsigned long old_ino_size
;
1619 int old_itable_size
, new_itable_size
;
1621 old_itable_size
= fs
->inode_blocks_per_group
* fs
->blocksize
;
1622 old_ino_size
= EXT2_INODE_SIZE(fs
->super
);
1624 new_ino_blks_per_grp
= ext2fs_div_ceil(
1625 EXT2_INODES_PER_GROUP(fs
->super
) *
1629 new_itable_size
= new_ino_blks_per_grp
* fs
->blocksize
;
1631 retval
= ext2fs_get_mem(old_itable_size
, &old_itable
);
1635 retval
= ext2fs_get_mem(new_itable_size
, &new_itable
);
1639 tmp_old_itable
= old_itable
;
1640 tmp_new_itable
= new_itable
;
1642 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
1643 blk
= ext2fs_inode_table_loc(fs
, i
);
1644 retval
= io_channel_read_blk64(fs
->io
, blk
,
1645 fs
->inode_blocks_per_group
, old_itable
);
1649 for (j
= 0; j
< EXT2_INODES_PER_GROUP(fs
->super
); j
++) {
1650 memcpy(new_itable
, old_itable
, old_ino_size
);
1652 memset(new_itable
+old_ino_size
, 0,
1653 new_ino_size
- old_ino_size
);
1655 new_itable
+= new_ino_size
;
1656 old_itable
+= old_ino_size
;
1659 /* reset the pointer */
1660 old_itable
= tmp_old_itable
;
1661 new_itable
= tmp_new_itable
;
1663 retval
= io_channel_write_blk64(fs
->io
, blk
,
1664 new_ino_blks_per_grp
, new_itable
);
1669 /* Update the meta data */
1670 fs
->inode_blocks_per_group
= new_ino_blks_per_grp
;
1671 fs
->super
->s_inode_size
= new_ino_size
;
1675 ext2fs_free_mem(&old_itable
);
1678 ext2fs_free_mem(&new_itable
);
1683 static errcode_t
ext2fs_calculate_summary_stats(ext2_filsys fs
)
1687 unsigned int group
= 0;
1688 unsigned int count
= 0;
1693 * First calculate the block statistics
1695 for (blk
= fs
->super
->s_first_data_block
;
1696 blk
< ext2fs_blocks_count(fs
->super
); blk
++) {
1697 if (!ext2fs_fast_test_block_bitmap2(fs
->block_map
, blk
)) {
1702 if ((count
== fs
->super
->s_blocks_per_group
) ||
1703 (blk
== ext2fs_blocks_count(fs
->super
)-1)) {
1704 ext2fs_bg_free_blocks_count_set(fs
, group
++,
1710 total_free
= EXT2FS_C2B(fs
, total_free
);
1711 ext2fs_free_blocks_count_set(fs
->super
, total_free
);
1714 * Next, calculate the inode statistics
1721 /* Protect loop from wrap-around if s_inodes_count maxed */
1722 for (ino
= 1; ino
<= fs
->super
->s_inodes_count
&& ino
> 0; ino
++) {
1723 if (!ext2fs_fast_test_inode_bitmap2(fs
->inode_map
, ino
)) {
1728 if ((count
== fs
->super
->s_inodes_per_group
) ||
1729 (ino
== fs
->super
->s_inodes_count
)) {
1730 ext2fs_bg_free_inodes_count_set(fs
, group
++,
1736 fs
->super
->s_free_inodes_count
= total_free
;
1737 ext2fs_mark_super_dirty(fs
);
1741 #define list_for_each_safe(pos, pnext, head) \
1742 for (pos = (head)->next, pnext = pos->next; pos != (head); \
1743 pos = pnext, pnext = pos->next)
1745 static void free_blk_move_list(void)
1747 struct list_head
*entry
, *tmp
;
1748 struct blk_move
*bmv
;
1750 list_for_each_safe(entry
, tmp
, &blk_move_list
) {
1751 bmv
= list_entry(entry
, struct blk_move
, list
);
1753 ext2fs_free_mem(&bmv
);
1758 static int resize_inode(ext2_filsys fs
, unsigned long new_size
)
1761 int new_ino_blks_per_grp
;
1762 ext2fs_block_bitmap bmap
;
1764 retval
= ext2fs_read_inode_bitmap(fs
);
1766 fputs(_("Failed to read inode bitmap\n"), stderr
);
1769 retval
= ext2fs_read_block_bitmap(fs
);
1771 fputs(_("Failed to read block bitmap\n"), stderr
);
1774 INIT_LIST_HEAD(&blk_move_list
);
1777 new_ino_blks_per_grp
= ext2fs_div_ceil(
1778 EXT2_INODES_PER_GROUP(fs
->super
)*
1782 /* We may change the file system.
1783 * Mark the file system as invalid so that
1784 * the user is prompted to run fsck.
1786 fs
->super
->s_state
&= ~EXT2_VALID_FS
;
1788 retval
= ext2fs_allocate_block_bitmap(fs
, _("blocks to be moved"),
1791 fputs(_("Failed to allocate block bitmap when "
1792 "increasing inode size\n"), stderr
);
1795 retval
= get_move_bitmaps(fs
, new_ino_blks_per_grp
, bmap
);
1797 fputs(_("Not enough space to increase inode size \n"), stderr
);
1800 retval
= move_block(fs
, bmap
);
1802 fputs(_("Failed to relocate blocks during inode resize \n"),
1806 retval
= inode_scan_and_fix(fs
, bmap
);
1810 retval
= group_desc_scan_and_fix(fs
, bmap
);
1814 retval
= expand_inode_table(fs
, new_size
);
1818 ext2fs_calculate_summary_stats(fs
);
1820 fs
->super
->s_state
|= EXT2_VALID_FS
;
1821 /* mark super block and block bitmap as dirty */
1822 ext2fs_mark_super_dirty(fs
);
1823 ext2fs_mark_bb_dirty(fs
);
1826 free_blk_move_list();
1827 ext2fs_free_block_bitmap(bmap
);
1832 free_blk_move_list();
1833 ext2fs_free_block_bitmap(bmap
);
1834 fputs(_("Error in resizing the inode size.\n"
1835 "Run e2undo to undo the "
1836 "file system changes. \n"), stderr
);
1841 static int tune2fs_setup_tdb(const char *name
, io_manager
*io_ptr
)
1843 errcode_t retval
= 0;
1844 const char *tdb_dir
;
1846 char *dev_name
, *tmp_name
;
1850 * Configuration via a conf file would be
1853 profile_get_string(profile
, "scratch_files",
1857 tmp_name
= strdup(name
);
1860 com_err(program_name
, ENOMEM
, "%s",
1861 _("Couldn't allocate memory for tdb filename\n"));
1864 dev_name
= basename(tmp_name
);
1866 tdb_dir
= getenv("E2FSPROGS_UNDO_DIR");
1868 tdb_dir
= "/var/lib/e2fsprogs";
1870 if (!strcmp(tdb_dir
, "none") || (tdb_dir
[0] == 0) ||
1871 access(tdb_dir
, W_OK
))
1874 tdb_file
= malloc(strlen(tdb_dir
) + 9 + strlen(dev_name
) + 7 + 1);
1877 sprintf(tdb_file
, "%s/tune2fs-%s.e2undo", tdb_dir
, dev_name
);
1879 if ((unlink(tdb_file
) < 0) && (errno
!= ENOENT
)) {
1881 com_err(program_name
, retval
,
1882 _("while trying to delete %s"), tdb_file
);
1887 set_undo_io_backing_manager(*io_ptr
);
1888 *io_ptr
= undo_io_manager
;
1889 set_undo_io_backup_file(tdb_file
);
1890 printf(_("To undo the tune2fs operation please run "
1891 "the command\n e2undo %s %s\n\n"),
1898 int main(int argc
, char **argv
)
1902 struct ext2_super_block
*sb
;
1903 io_manager io_ptr
, io_ptr_orig
= NULL
;
1907 setlocale(LC_MESSAGES
, "");
1908 setlocale(LC_CTYPE
, "");
1909 bindtextdomain(NLS_CAT_NAME
, LOCALEDIR
);
1910 textdomain(NLS_CAT_NAME
);
1911 set_com_err_gettext(gettext
);
1914 program_name
= *argv
;
1915 add_error_table(&et_ext2_error_table
);
1917 #ifdef CONFIG_BUILD_FINDFS
1918 if (strcmp(get_progname(argv
[0]), "findfs") == 0)
1919 do_findfs(argc
, argv
);
1921 if (strcmp(get_progname(argv
[0]), "e2label") == 0)
1922 parse_e2label_options(argc
, argv
);
1924 parse_tune2fs_options(argc
, argv
);
1926 #ifdef CONFIG_TESTIO_DEBUG
1927 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) {
1928 io_ptr
= test_io_manager
;
1929 test_io_backing_manager
= unix_io_manager
;
1932 io_ptr
= unix_io_manager
;
1935 if ((open_flag
& EXT2_FLAG_RW
) == 0 || f_flag
)
1936 open_flag
|= EXT2_FLAG_SKIP_MMP
;
1938 open_flag
|= EXT2_FLAG_64BITS
;
1940 /* keep the filesystem struct around to dump MMP data */
1941 open_flag
|= EXT2_FLAG_NOFREE_ON_ERROR
;
1943 retval
= ext2fs_open2(device_name
, io_options
, open_flag
,
1946 com_err(program_name
, retval
,
1947 _("while trying to open %s"),
1949 if (retval
== EXT2_ET_MMP_FSCK_ON
||
1950 retval
== EXT2_ET_MMP_UNKNOWN_SEQ
)
1951 dump_mmp_msg(fs
->mmp_buf
,
1952 _("If you are sure the filesystem "
1953 "is not in use on any node, run:\n"
1954 "'tune2fs -f -E clear_mmp {device}'\n"));
1955 else if (retval
== EXT2_ET_MMP_FAILED
)
1956 dump_mmp_msg(fs
->mmp_buf
, NULL
);
1957 else if (retval
== EXT2_ET_MMP_MAGIC_INVALID
)
1959 _("MMP block magic is bad. Try to fix it by "
1960 "running:\n'e2fsck -f %s'\n"), device_name
);
1961 else if (retval
!= EXT2_ET_MMP_FAILED
)
1962 fprintf(stderr
, "%s",
1963 _("Couldn't find valid filesystem superblock.\n"));
1968 fs
->default_bitmap_type
= EXT2FS_BMAP64_RBTREE
;
1970 if (I_flag
&& !io_ptr_orig
) {
1972 * Check the inode size is right so we can issue an
1973 * error message and bail before setting up the tdb
1976 if (new_inode_size
== EXT2_INODE_SIZE(fs
->super
)) {
1977 fprintf(stderr
, _("The inode size is already %lu\n"),
1982 if (new_inode_size
< EXT2_INODE_SIZE(fs
->super
)) {
1983 fprintf(stderr
, "%s",
1984 _("Shrinking inode size is not supported\n"));
1988 if (new_inode_size
> fs
->blocksize
) {
1989 fprintf(stderr
, _("Invalid inode size %lu (max %d)\n"),
1990 new_inode_size
, fs
->blocksize
);
1996 * If inode resize is requested use the
1999 io_ptr_orig
= io_ptr
;
2000 retval
= tune2fs_setup_tdb(device_name
, &io_ptr
);
2005 if (io_ptr
!= io_ptr_orig
) {
2012 fs
->flags
&= ~EXT2_FLAG_MASTER_SB_ONLY
;
2015 /* For e2label emulation */
2016 printf("%.*s\n", (int) sizeof(sb
->s_volume_name
),
2018 remove_error_table(&et_ext2_error_table
);
2022 retval
= ext2fs_check_if_mounted(device_name
, &mount_flags
);
2024 com_err("ext2fs_check_if_mount", retval
,
2025 _("while determining whether %s is mounted."),
2030 /* Normally we only need to write out the superblock */
2031 fs
->flags
|= EXT2_FLAG_SUPER_ONLY
;
2034 sb
->s_max_mnt_count
= max_mount_count
;
2035 ext2fs_mark_super_dirty(fs
);
2036 printf(_("Setting maximal mount count to %d\n"),
2040 sb
->s_mnt_count
= mount_count
;
2041 ext2fs_mark_super_dirty(fs
);
2042 printf(_("Setting current mount count to %d\n"), mount_count
);
2045 sb
->s_errors
= errors
;
2046 ext2fs_mark_super_dirty(fs
);
2047 printf(_("Setting error behavior to %d\n"), errors
);
2050 sb
->s_def_resgid
= resgid
;
2051 ext2fs_mark_super_dirty(fs
);
2052 printf(_("Setting reserved blocks gid to %lu\n"), resgid
);
2055 if ((unsigned long long)interval
>= (1ULL << 32)) {
2056 com_err(program_name
, 0,
2057 _("interval between checks is too big (%lu)"),
2062 sb
->s_checkinterval
= interval
;
2063 ext2fs_mark_super_dirty(fs
);
2064 printf(_("Setting interval between checks to %lu seconds\n"),
2068 ext2fs_r_blocks_count_set(sb
, reserved_ratio
*
2069 ext2fs_blocks_count(sb
) / 100.0);
2070 ext2fs_mark_super_dirty(fs
);
2071 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"),
2072 reserved_ratio
, ext2fs_r_blocks_count(sb
));
2075 if (reserved_blocks
> ext2fs_blocks_count(sb
)/2) {
2076 com_err(program_name
, 0,
2077 _("reserved blocks count is too big (%llu)"),
2082 ext2fs_r_blocks_count_set(sb
, reserved_blocks
);
2083 ext2fs_mark_super_dirty(fs
);
2084 printf(_("Setting reserved blocks count to %llu\n"),
2088 if (sb
->s_feature_ro_compat
&
2089 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
) {
2090 fputs(_("\nThe filesystem already has sparse "
2091 "superblocks.\n"), stderr
);
2092 } else if (sb
->s_feature_incompat
&
2093 EXT2_FEATURE_INCOMPAT_META_BG
) {
2094 fputs(_("\nSetting the sparse superblock flag not "
2095 "supported\nfor filesystems with "
2096 "the meta_bg feature enabled.\n"),
2101 sb
->s_feature_ro_compat
|=
2102 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
;
2103 sb
->s_state
&= ~EXT2_VALID_FS
;
2104 ext2fs_mark_super_dirty(fs
);
2105 printf(_("\nSparse superblock flag set. %s"),
2110 fputs(_("\nClearing the sparse superblock flag not supported.\n"),
2116 sb
->s_lastcheck
= last_check_time
;
2117 ext2fs_mark_super_dirty(fs
);
2118 printf(_("Setting time filesystem last checked to %s\n"),
2119 ctime(&last_check_time
));
2122 sb
->s_def_resuid
= resuid
;
2123 ext2fs_mark_super_dirty(fs
);
2124 printf(_("Setting reserved blocks uid to %lu\n"), resuid
);
2127 if (strlen(new_label
) > sizeof(sb
->s_volume_name
))
2128 fputs(_("Warning: label too long, truncating.\n"),
2130 memset(sb
->s_volume_name
, 0, sizeof(sb
->s_volume_name
));
2131 strncpy(sb
->s_volume_name
, new_label
,
2132 sizeof(sb
->s_volume_name
));
2133 ext2fs_mark_super_dirty(fs
);
2136 memset(sb
->s_last_mounted
, 0, sizeof(sb
->s_last_mounted
));
2137 strncpy(sb
->s_last_mounted
, new_last_mounted
,
2138 sizeof(sb
->s_last_mounted
));
2139 ext2fs_mark_super_dirty(fs
);
2142 rc
= update_mntopts(fs
, mntopts_cmd
);
2147 rc
= update_feature_set(fs
, features_cmd
);
2152 rc
= parse_extended_opts(fs
, extended_cmd
);
2155 if (clear_mmp
&& !f_flag
) {
2156 fputs(_("Error in using clear_mmp. "
2157 "It must be used with -f\n"),
2163 rc
= ext2fs_mmp_clear(fs
);
2166 if (journal_size
|| journal_device
) {
2167 rc
= add_journal(fs
);
2173 if (mount_flags
& EXT2_MF_MOUNTED
) {
2174 fputs(_("The quota feature may only be changed when "
2175 "the filesystem is unmounted.\n"), stderr
);
2179 handle_quota_options(fs
);
2186 if (sb
->s_feature_ro_compat
&
2187 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
) {
2189 * Changing the UUID requires rewriting all metadata,
2190 * which can race with a mounted fs. Don't allow that.
2192 if (mount_flags
& EXT2_MF_MOUNTED
) {
2193 fputs(_("The UUID may only be "
2194 "changed when the filesystem is "
2195 "unmounted.\n"), stderr
);
2198 if (check_fsck_needed(fs
))
2202 * Determine if the block group checksums are
2203 * correct so we know whether or not to set
2206 for (i
= 0; i
< fs
->group_desc_count
; i
++)
2207 if (!ext2fs_group_desc_csum_verify(fs
, i
))
2209 if (i
>= fs
->group_desc_count
)
2212 if ((strcasecmp(new_UUID
, "null") == 0) ||
2213 (strcasecmp(new_UUID
, "clear") == 0)) {
2214 uuid_clear(sb
->s_uuid
);
2215 } else if (strcasecmp(new_UUID
, "time") == 0) {
2216 uuid_generate_time(sb
->s_uuid
);
2217 } else if (strcasecmp(new_UUID
, "random") == 0) {
2218 uuid_generate(sb
->s_uuid
);
2219 } else if (uuid_parse(new_UUID
, sb
->s_uuid
)) {
2220 com_err(program_name
, 0, "%s",
2221 _("Invalid UUID format\n"));
2226 for (i
= 0; i
< fs
->group_desc_count
; i
++)
2227 ext2fs_group_desc_csum_set(fs
, i
);
2228 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
2230 ext2fs_mark_super_dirty(fs
);
2233 if (mount_flags
& EXT2_MF_MOUNTED
) {
2234 fputs(_("The inode size may only be "
2235 "changed when the filesystem is "
2236 "unmounted.\n"), stderr
);
2240 if (fs
->super
->s_feature_incompat
&
2241 EXT4_FEATURE_INCOMPAT_FLEX_BG
) {
2242 fputs(_("Changing the inode size not supported for "
2243 "filesystems with the flex_bg\n"
2244 "feature enabled.\n"),
2250 * We want to update group descriptor also
2251 * with the new free inode count
2253 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
2254 if (resize_inode(fs
, new_inode_size
) == 0) {
2255 printf(_("Setting inode size %lu\n"),
2258 printf("%s", _("Failed to change inode size\n"));
2267 sb
->s_raid_stride
= stride
;
2268 ext2fs_mark_super_dirty(fs
);
2269 printf(_("Setting stride size to %d\n"), stride
);
2271 if (stripe_width_set
) {
2272 sb
->s_raid_stripe_width
= stripe_width
;
2273 ext2fs_mark_super_dirty(fs
);
2274 printf(_("Setting stripe width to %d\n"), stripe_width
);
2276 if (ext_mount_opts
) {
2277 strncpy((char *)(fs
->super
->s_mount_opts
), ext_mount_opts
,
2278 sizeof(fs
->super
->s_mount_opts
));
2279 fs
->super
->s_mount_opts
[sizeof(fs
->super
->s_mount_opts
)-1] = 0;
2280 ext2fs_mark_super_dirty(fs
);
2281 printf(_("Setting extended default mount options to '%s'\n"),
2283 free(ext_mount_opts
);
2286 remove_error_table(&et_ext2_error_table
);
2290 ext2fs_mmp_stop(fs
);
2294 return (ext2fs_close(fs
) ? 1 : 0);