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
;
98 static int rewrite_checksums
;
100 int journal_size
, journal_flags
;
101 char *journal_device
;
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");
113 static const char *please_dir_fsck
=
114 N_("Please run e2fsck -D on the filesystem.\n");
116 #ifdef CONFIG_BUILD_FINDFS
117 void do_findfs(int argc
, char **argv
);
120 static void usage(void)
123 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] "
125 "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
126 "\t[-m reserved_blocks_percent] "
127 "[-o [^]mount_options[,...]] [-p mmp_update_interval]\n"
128 "\t[-r reserved_blocks_count] [-u user] [-C mount_count] "
129 "[-L volume_label]\n"
130 "\t[-M last_mounted_dir] [-O [^]feature[,...]]\n"
132 "\t[-Q quota_options]\n"
134 "\t[-E extended-option[,...]] [-T last_check_time] "
135 "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name
);
139 static __u32 ok_features
[3] = {
141 EXT3_FEATURE_COMPAT_HAS_JOURNAL
|
142 EXT2_FEATURE_COMPAT_DIR_INDEX
,
144 EXT2_FEATURE_INCOMPAT_FILETYPE
|
145 EXT3_FEATURE_INCOMPAT_EXTENTS
|
146 EXT4_FEATURE_INCOMPAT_FLEX_BG
|
147 EXT4_FEATURE_INCOMPAT_MMP
,
149 EXT2_FEATURE_RO_COMPAT_LARGE_FILE
|
150 EXT4_FEATURE_RO_COMPAT_HUGE_FILE
|
151 EXT4_FEATURE_RO_COMPAT_DIR_NLINK
|
152 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE
|
153 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
|
154 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
|
156 EXT4_FEATURE_RO_COMPAT_QUOTA
|
158 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
161 static __u32 clear_ok_features
[3] = {
163 EXT3_FEATURE_COMPAT_HAS_JOURNAL
|
164 EXT2_FEATURE_COMPAT_RESIZE_INODE
|
165 EXT2_FEATURE_COMPAT_DIR_INDEX
,
167 EXT2_FEATURE_INCOMPAT_FILETYPE
|
168 EXT4_FEATURE_INCOMPAT_FLEX_BG
|
169 EXT4_FEATURE_INCOMPAT_MMP
,
171 EXT2_FEATURE_RO_COMPAT_LARGE_FILE
|
172 EXT4_FEATURE_RO_COMPAT_HUGE_FILE
|
173 EXT4_FEATURE_RO_COMPAT_DIR_NLINK
|
174 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE
|
175 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
|
177 EXT4_FEATURE_RO_COMPAT_QUOTA
|
179 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
183 * Remove an external journal from the filesystem
185 static int remove_journal_device(ext2_filsys fs
)
190 journal_superblock_t
*jsb
;
193 int commit_remove_journal
= 0;
197 commit_remove_journal
= 1; /* force removal even if error */
199 uuid_unparse(fs
->super
->s_journal_uuid
, buf
);
200 journal_path
= blkid_get_devname(NULL
, "UUID", buf
);
204 ext2fs_find_block_device(fs
->super
->s_journal_dev
);
206 goto no_valid_journal
;
209 #ifdef CONFIG_TESTIO_DEBUG
210 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
211 io_ptr
= test_io_manager
;
212 test_io_backing_manager
= unix_io_manager
;
215 io_ptr
= unix_io_manager
;
216 retval
= ext2fs_open(journal_path
, EXT2_FLAG_RW
|
217 EXT2_FLAG_JOURNAL_DEV_OK
, 0,
218 fs
->blocksize
, io_ptr
, &jfs
);
220 com_err(program_name
, retval
, "%s",
221 _("while trying to open external journal"));
222 goto no_valid_journal
;
224 if (!(jfs
->super
->s_feature_incompat
&
225 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
)) {
226 fprintf(stderr
, _("%s is not a journal device.\n"),
228 goto no_valid_journal
;
231 /* Get the journal superblock */
232 if ((retval
= io_channel_read_blk64(jfs
->io
, 1, -1024, buf
))) {
233 com_err(program_name
, retval
, "%s",
234 _("while reading journal superblock"));
235 goto no_valid_journal
;
238 jsb
= (journal_superblock_t
*) buf
;
239 if ((jsb
->s_header
.h_magic
!= (unsigned)ntohl(JFS_MAGIC_NUMBER
)) ||
240 (jsb
->s_header
.h_blocktype
!= (unsigned)ntohl(JFS_SUPERBLOCK_V2
))) {
241 fputs(_("Journal superblock not found!\n"), stderr
);
242 goto no_valid_journal
;
245 /* Find the filesystem UUID */
246 nr_users
= ntohl(jsb
->s_nr_users
);
247 for (i
= 0; i
< nr_users
; i
++) {
248 if (memcmp(fs
->super
->s_uuid
, &jsb
->s_users
[i
* 16], 16) == 0)
252 fputs(_("Filesystem's UUID not found on journal device.\n"),
254 commit_remove_journal
= 1;
255 goto no_valid_journal
;
258 for (i
= 0; i
< nr_users
; i
++)
259 memcpy(&jsb
->s_users
[i
* 16], &jsb
->s_users
[(i
+ 1) * 16], 16);
260 jsb
->s_nr_users
= htonl(nr_users
);
262 /* Write back the journal superblock */
263 if ((retval
= io_channel_write_blk64(jfs
->io
, 1, -1024, buf
))) {
264 com_err(program_name
, retval
,
265 "while writing journal superblock.");
266 goto no_valid_journal
;
269 commit_remove_journal
= 1;
272 if (commit_remove_journal
== 0) {
273 fputs(_("Cannot locate journal device. It was NOT removed\n"
274 "Use -f option to remove missing journal device.\n"),
278 fs
->super
->s_journal_dev
= 0;
279 uuid_clear(fs
->super
->s_journal_uuid
);
280 ext2fs_mark_super_dirty(fs
);
281 fputs(_("Journal removed\n"), stdout
);
287 /* Helper function for remove_journal_inode */
288 static int release_blocks_proc(ext2_filsys fs
, blk64_t
*blocknr
,
289 e2_blkcnt_t blockcnt
EXT2FS_ATTR((unused
)),
290 blk64_t ref_block
EXT2FS_ATTR((unused
)),
291 int ref_offset
EXT2FS_ATTR((unused
)),
292 void *private EXT2FS_ATTR((unused
)))
298 ext2fs_unmark_block_bitmap2(fs
->block_map
, block
);
299 group
= ext2fs_group_of_blk2(fs
, block
);
300 ext2fs_bg_free_blocks_count_set(fs
, group
, ext2fs_bg_free_blocks_count(fs
, group
) + 1);
301 ext2fs_group_desc_csum_set(fs
, group
);
302 ext2fs_free_blocks_count_add(fs
->super
, EXT2FS_CLUSTER_RATIO(fs
));
307 * Remove the journal inode from the filesystem
309 static errcode_t
remove_journal_inode(ext2_filsys fs
)
311 struct ext2_inode inode
;
313 ino_t ino
= fs
->super
->s_journal_inum
;
315 retval
= ext2fs_read_inode(fs
, ino
, &inode
);
317 com_err(program_name
, retval
, "%s",
318 _("while reading journal inode"));
321 if (ino
== EXT2_JOURNAL_INO
) {
322 retval
= ext2fs_read_bitmaps(fs
);
324 com_err(program_name
, retval
, "%s",
325 _("while reading bitmaps"));
328 retval
= ext2fs_block_iterate3(fs
, ino
,
329 BLOCK_FLAG_READ_ONLY
, NULL
,
330 release_blocks_proc
, NULL
);
332 com_err(program_name
, retval
, "%s",
333 _("while clearing journal inode"));
336 memset(&inode
, 0, sizeof(inode
));
337 ext2fs_mark_bb_dirty(fs
);
338 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
340 inode
.i_flags
&= ~EXT2_IMMUTABLE_FL
;
341 retval
= ext2fs_write_inode(fs
, ino
, &inode
);
343 com_err(program_name
, retval
, "%s",
344 _("while writing journal inode"));
347 fs
->super
->s_journal_inum
= 0;
348 ext2fs_mark_super_dirty(fs
);
354 * Update the default mount options
356 static int update_mntopts(ext2_filsys fs
, char *mntopts
)
358 struct ext2_super_block
*sb
= fs
->super
;
360 if (e2p_edit_mntopts(mntopts
, &sb
->s_default_mount_opts
, ~0)) {
361 fprintf(stderr
, _("Invalid mount option set: %s\n"),
365 ext2fs_mark_super_dirty(fs
);
370 static int check_fsck_needed(ext2_filsys fs
)
372 if (fs
->super
->s_state
& EXT2_VALID_FS
)
374 printf("\n%s\n", _(please_fsck
));
375 if (mount_flags
& EXT2_MF_READONLY
)
376 printf(_("(and reboot afterwards!)\n"));
380 static void request_dir_fsck_afterwards(ext2_filsys fs
)
382 static int requested
;
386 fs
->super
->s_state
&= ~EXT2_VALID_FS
;
387 printf("\n%s\n", _(please_dir_fsck
));
388 if (mount_flags
& EXT2_MF_READONLY
)
389 printf(_("(and reboot afterwards!)\n"));
392 static void request_fsck_afterwards(ext2_filsys fs
)
394 static int requested
= 0;
398 fs
->super
->s_state
&= ~EXT2_VALID_FS
;
399 printf("\n%s\n", _(please_fsck
));
400 if (mount_flags
& EXT2_MF_READONLY
)
401 printf("%s", _("(and reboot afterwards!)\n"));
404 /* Rewrite extents */
405 static errcode_t
rewrite_extents(ext2_filsys fs
, ext2_ino_t ino
,
406 struct ext2_inode
*inode
)
408 ext2_extent_handle_t handle
;
409 struct ext2fs_extent extent
;
410 int op
= EXT2_EXTENT_ROOT
;
413 if (!(inode
->i_flags
& EXT4_EXTENTS_FL
))
416 errcode
= ext2fs_extent_open(fs
, ino
, &handle
);
421 errcode
= ext2fs_extent_get(handle
, op
, &extent
);
425 /* Root node is in the separately checksummed inode */
426 if (op
== EXT2_EXTENT_ROOT
) {
427 op
= EXT2_EXTENT_NEXT
;
430 op
= EXT2_EXTENT_NEXT
;
432 /* Only visit the first extent in each extent block */
433 if (extent
.e_flags
& EXT2_EXTENT_FLAGS_SECOND_VISIT
)
435 errcode
= ext2fs_extent_replace(handle
, 0, &extent
);
440 /* Ok if we run off the end */
441 if (errcode
== EXT2_ET_EXTENT_NO_NEXT
)
447 * Rewrite directory blocks with checksums
449 struct rewrite_dir_context
{
456 static int rewrite_dir_block(ext2_filsys fs
,
458 e2_blkcnt_t blockcnt
EXT2FS_ATTR((unused
)),
459 blk64_t ref_block
EXT2FS_ATTR((unused
)),
460 int ref_offset
EXT2FS_ATTR((unused
)),
463 struct ext2_dx_countlimit
*dcl
= NULL
;
464 struct rewrite_dir_context
*ctx
= priv_data
;
465 int dcl_offset
, changed
= 0;
467 ctx
->errcode
= ext2fs_read_dir_block4(fs
, *blocknr
, ctx
->buf
, 0,
472 /* if htree node... */
474 ext2fs_get_dx_countlimit(fs
, (struct ext2_dir_entry
*)ctx
->buf
,
477 if (!EXT2_HAS_RO_COMPAT_FEATURE(fs
->super
,
478 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
)) {
479 /* Ensure limit is the max size */
480 int max_entries
= (fs
->blocksize
- dcl_offset
) /
481 sizeof(struct ext2_dx_entry
);
482 if (ext2fs_le16_to_cpu(dcl
->limit
) != max_entries
) {
484 dcl
->limit
= ext2fs_cpu_to_le16(max_entries
);
487 /* If htree block is full then rebuild the dir */
488 if (ext2fs_le16_to_cpu(dcl
->count
) ==
489 ext2fs_le16_to_cpu(dcl
->limit
)) {
490 request_dir_fsck_afterwards(fs
);
494 * Ensure dcl->limit is small enough to leave room for
497 int max_entries
= (fs
->blocksize
- (dcl_offset
+
498 sizeof(struct ext2_dx_tail
))) /
499 sizeof(struct ext2_dx_entry
);
500 if (ext2fs_le16_to_cpu(dcl
->limit
) != max_entries
)
501 dcl
->limit
= ext2fs_cpu_to_le16(max_entries
);
502 /* Always rewrite checksum */
506 unsigned int rec_len
, name_size
;
507 char *top
= ctx
->buf
+ fs
->blocksize
;
508 struct ext2_dir_entry
*de
= (struct ext2_dir_entry
*)ctx
->buf
;
509 struct ext2_dir_entry
*last_de
= NULL
, *penultimate_de
= NULL
;
511 /* Find last and penultimate dirent */
512 while ((char *)de
< top
) {
513 penultimate_de
= last_de
;
515 ctx
->errcode
= ext2fs_get_rec_len(fs
, de
, &rec_len
);
516 if (!ctx
->errcode
&& !rec_len
)
517 ctx
->errcode
= EXT2_ET_DIR_CORRUPTED
;
520 de
= (struct ext2_dir_entry
*)(((char *)de
) + rec_len
);
522 ctx
->errcode
= ext2fs_get_rec_len(fs
, last_de
, &rec_len
);
525 name_size
= ext2fs_dirent_name_len(last_de
);
527 if (!EXT2_HAS_RO_COMPAT_FEATURE(fs
->super
,
528 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
)) {
531 if (last_de
->inode
||
533 rec_len
!= sizeof(struct ext2_dir_entry_tail
))
536 * The last dirent is unused and the right length to
537 * have stored a checksum. Erase it.
539 ctx
->errcode
= ext2fs_get_rec_len(fs
, penultimate_de
,
542 ctx
->errcode
= EXT2_ET_DIR_CORRUPTED
;
545 ext2fs_set_rec_len(fs
, rec_len
+
546 sizeof(struct ext2_dir_entry_tail
),
550 unsigned csum_size
= sizeof(struct ext2_dir_entry_tail
);
551 struct ext2_dir_entry_tail
*t
;
554 * If the last dirent looks like the tail, just update
557 if (!last_de
->inode
&&
558 rec_len
== csum_size
) {
559 t
= (struct ext2_dir_entry_tail
*)last_de
;
560 t
->det_reserved_name_len
=
561 EXT2_DIR_NAME_LEN_CSUM
;
566 name_size
= (name_size
& ~3) + 4;
567 /* If there's not enough space for the tail, e2fsck */
568 if (rec_len
<= (8 + name_size
+ csum_size
)) {
569 request_dir_fsck_afterwards(fs
);
572 /* Shorten that last de and insert the tail */
573 ext2fs_set_rec_len(fs
, rec_len
- csum_size
, last_de
);
574 t
= EXT2_DIRENT_TAIL(ctx
->buf
, fs
->blocksize
);
575 ext2fs_initialize_dirent_tail(fs
, t
);
577 /* Always update checksum */
586 ctx
->errcode
= ext2fs_write_dir_block4(fs
, *blocknr
, ctx
->buf
,
594 static errcode_t
rewrite_directory(ext2_filsys fs
, ext2_ino_t dir
,
595 struct ext2_inode
*inode
)
598 struct rewrite_dir_context ctx
;
600 retval
= ext2fs_get_mem(fs
->blocksize
, &ctx
.buf
);
604 ctx
.is_htree
= (inode
->i_flags
& EXT2_INDEX_FL
);
607 retval
= ext2fs_block_iterate3(fs
, dir
, BLOCK_FLAG_READ_ONLY
|
608 BLOCK_FLAG_DATA_ONLY
,
609 0, rewrite_dir_block
, &ctx
);
611 ext2fs_free_mem(&ctx
.buf
);
619 * Forcibly set checksums in all inodes.
621 static void rewrite_inodes(ext2_filsys fs
)
623 int length
= EXT2_INODE_SIZE(fs
->super
);
624 struct ext2_inode
*inode
, *zero
;
626 ext2_inode_scan scan
;
629 blk64_t file_acl_block
;
632 if (fs
->super
->s_creator_os
!= EXT2_OS_LINUX
)
635 retval
= ext2fs_open_inode_scan(fs
, 0, &scan
);
637 com_err("set_csum", retval
, "while opening inode scan");
641 retval
= ext2fs_get_mem(length
, &inode
);
643 com_err("set_csum", retval
, "while allocating memory");
647 retval
= ext2fs_get_memzero(length
, &zero
);
649 com_err("set_csum", retval
, "while allocating memory");
653 retval
= ext2fs_get_mem(fs
->blocksize
, &ea_buf
);
655 com_err("set_csum", retval
, "while allocating memory");
660 retval
= ext2fs_get_next_inode_full(scan
, &ino
, inode
, length
);
662 com_err("set_csum", retval
, "while getting next inode");
667 if (ext2fs_test_inode_bitmap2(fs
->inode_map
, ino
)) {
670 if (memcmp(inode
, zero
, length
) != 0) {
671 memset(inode
, 0, length
);
679 retval
= ext2fs_write_inode_full(fs
, ino
, inode
,
682 com_err("set_csum", retval
, "while writing "
688 retval
= rewrite_extents(fs
, ino
, inode
);
690 com_err("rewrite_extents", retval
,
691 "while rewriting extents");
695 if (LINUX_S_ISDIR(inode
->i_mode
)) {
696 retval
= rewrite_directory(fs
, ino
, inode
);
698 com_err("rewrite_directory", retval
,
699 "while rewriting directories");
704 file_acl_block
= ext2fs_file_acl_block(fs
, inode
);
707 retval
= ext2fs_read_ext_attr3(fs
, file_acl_block
, ea_buf
, ino
);
709 com_err("rewrite_eablock", retval
,
710 "while rewriting extended attribute");
713 retval
= ext2fs_write_ext_attr3(fs
, file_acl_block
, ea_buf
,
716 com_err("rewrite_eablock", retval
,
717 "while rewriting extended attribute");
722 ext2fs_free_mem(&zero
);
723 ext2fs_free_mem(&inode
);
724 ext2fs_free_mem(&ea_buf
);
725 ext2fs_close_inode_scan(scan
);
728 static void rewrite_metadata_checksums(ext2_filsys fs
)
732 fs
->flags
|= EXT2_FLAG_IGNORE_CSUM_ERRORS
;
733 ext2fs_init_csum_seed(fs
);
734 for (i
= 0; i
< fs
->group_desc_count
; i
++)
735 ext2fs_group_desc_csum_set(fs
, i
);
736 ext2fs_read_bitmaps(fs
);
738 ext2fs_mark_ib_dirty(fs
);
739 ext2fs_mark_bb_dirty(fs
);
740 ext2fs_mmp_update2(fs
, 1);
741 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
742 fs
->flags
&= ~EXT2_FLAG_IGNORE_CSUM_ERRORS
;
743 if (EXT2_HAS_RO_COMPAT_FEATURE(fs
->super
,
744 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
))
745 fs
->super
->s_checksum_type
= EXT2_CRC32C_CHKSUM
;
747 fs
->super
->s_checksum_type
= 0;
748 ext2fs_mark_super_dirty(fs
);
751 static void enable_uninit_bg(ext2_filsys fs
)
753 struct ext2_group_desc
*gd
;
756 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
757 gd
= ext2fs_group_desc(fs
, fs
->group_desc
, i
);
758 gd
->bg_itable_unused
= 0;
759 gd
->bg_flags
= EXT2_BG_INODE_ZEROED
;
760 ext2fs_group_desc_csum_set(fs
, i
);
762 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
765 static errcode_t
zero_empty_inodes(ext2_filsys fs
)
767 int length
= EXT2_INODE_SIZE(fs
->super
);
768 struct ext2_inode
*inode
;
769 ext2_inode_scan scan
;
773 retval
= ext2fs_open_inode_scan(fs
, 0, &scan
);
777 retval
= ext2fs_get_mem(length
, &inode
);
782 retval
= ext2fs_get_next_inode_full(scan
, &ino
, inode
, length
);
787 if (!ext2fs_test_inode_bitmap2(fs
->inode_map
, ino
)) {
788 memset(inode
, 0, length
);
789 retval
= ext2fs_write_inode_full(fs
, ino
, inode
,
797 ext2fs_free_mem(&inode
);
798 ext2fs_close_inode_scan(scan
);
802 static void disable_uninit_bg(ext2_filsys fs
, __u32 csum_feature_flag
)
804 struct ext2_group_desc
*gd
;
810 /* Load bitmaps to ensure that the uninit ones get written out */
811 fs
->super
->s_feature_ro_compat
|= csum_feature_flag
;
812 ext2fs_read_bitmaps(fs
);
813 ext2fs_mark_ib_dirty(fs
);
814 ext2fs_mark_bb_dirty(fs
);
815 fs
->super
->s_feature_ro_compat
&= ~csum_feature_flag
;
817 /* If we're only turning off uninit_bg, zero the inodes */
818 if (csum_feature_flag
== EXT4_FEATURE_RO_COMPAT_GDT_CSUM
) {
819 retval
= zero_empty_inodes(fs
);
821 com_err("disable_uninit_bg", retval
,
822 "while zeroing unused inodes");
823 request_fsck_afterwards(fs
);
827 /* The bbitmap is zeroed; we must mark group metadata blocks in use */
828 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
829 b
= ext2fs_block_bitmap_loc(fs
, i
);
830 ext2fs_mark_block_bitmap2(fs
->block_map
, b
);
831 b
= ext2fs_inode_bitmap_loc(fs
, i
);
832 ext2fs_mark_block_bitmap2(fs
->block_map
, b
);
834 retval
= ext2fs_super_and_bgd_loc2(fs
, i
, &b
, &c
, &d
, NULL
);
835 if (retval
== 0 && b
)
836 ext2fs_mark_block_bitmap2(fs
->block_map
, b
);
837 if (retval
== 0 && c
)
838 ext2fs_mark_block_bitmap2(fs
->block_map
, c
);
839 if (retval
== 0 && d
)
840 ext2fs_mark_block_bitmap2(fs
->block_map
, d
);
842 com_err("disable_uninit_bg", retval
,
843 "while initializing block bitmaps");
844 request_fsck_afterwards(fs
);
847 gd
= ext2fs_group_desc(fs
, fs
->group_desc
, i
);
848 gd
->bg_itable_unused
= 0;
850 ext2fs_group_desc_csum_set(fs
, i
);
852 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
853 ext2fs_mark_super_dirty(fs
);
857 * Update the feature set as provided by the user.
859 static int update_feature_set(ext2_filsys fs
, char *features
)
861 struct ext2_super_block
*sb
= fs
->super
;
862 __u32 old_features
[3];
864 unsigned int mask_err
;
866 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
867 ((&sb->s_feature_compat)[(type)] & (mask)))
868 #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
869 !((&sb->s_feature_compat)[(type)] & (mask)))
870 #define FEATURE_CHANGED(type, mask) ((mask) & \
871 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
873 old_features
[E2P_FEATURE_COMPAT
] = sb
->s_feature_compat
;
874 old_features
[E2P_FEATURE_INCOMPAT
] = sb
->s_feature_incompat
;
875 old_features
[E2P_FEATURE_RO_INCOMPAT
] = sb
->s_feature_ro_compat
;
877 if (e2p_edit_feature2(features
, &sb
->s_feature_compat
,
878 ok_features
, clear_ok_features
,
879 &type_err
, &mask_err
)) {
882 _("Invalid filesystem option set: %s\n"),
884 else if (type_err
& E2P_FEATURE_NEGATE_FLAG
)
885 fprintf(stderr
, _("Clearing filesystem feature '%s' "
887 e2p_feature2string(type_err
&
888 E2P_FEATURE_TYPE_MASK
,
891 fprintf(stderr
, _("Setting filesystem feature '%s' "
893 e2p_feature2string(type_err
, mask_err
));
897 if (FEATURE_OFF(E2P_FEATURE_COMPAT
, EXT3_FEATURE_COMPAT_HAS_JOURNAL
)) {
898 if ((mount_flags
& EXT2_MF_MOUNTED
) &&
899 !(mount_flags
& EXT2_MF_READONLY
)) {
900 fputs(_("The has_journal feature may only be "
901 "cleared when the filesystem is\n"
902 "unmounted or mounted "
903 "read-only.\n"), stderr
);
906 if (sb
->s_feature_incompat
&
907 EXT3_FEATURE_INCOMPAT_RECOVER
) {
908 fputs(_("The needs_recovery flag is set. "
909 "Please run e2fsck before clearing\n"
910 "the has_journal flag.\n"), stderr
);
913 if (sb
->s_journal_inum
) {
914 if (remove_journal_inode(fs
))
917 if (sb
->s_journal_dev
) {
918 if (remove_journal_device(fs
))
922 if (FEATURE_ON(E2P_FEATURE_INCOMPAT
, EXT4_FEATURE_INCOMPAT_MMP
)) {
925 if ((mount_flags
& EXT2_MF_MOUNTED
) ||
926 (mount_flags
& EXT2_MF_READONLY
)) {
927 fputs(_("The multiple mount protection feature can't\n"
928 "be set if the filesystem is mounted or\n"
929 "read-only.\n"), stderr
);
933 error
= ext2fs_mmp_init(fs
);
935 fputs(_("\nError while enabling multiple mount "
936 "protection feature."), stderr
);
941 * We want to update group desc with the new free blocks count
943 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
945 printf(_("Multiple mount protection has been enabled "
946 "with update interval %ds.\n"),
947 sb
->s_mmp_update_interval
);
950 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT
, EXT4_FEATURE_INCOMPAT_MMP
)) {
953 if (mount_flags
& EXT2_MF_READONLY
) {
954 fputs(_("The multiple mount protection feature cannot\n"
955 "be disabled if the filesystem is readonly.\n"),
960 error
= ext2fs_read_bitmaps(fs
);
962 fputs(_("Error while reading bitmaps\n"), stderr
);
966 error
= ext2fs_mmp_read(fs
, sb
->s_mmp_block
, NULL
);
968 struct mmp_struct
*mmp_cmp
= fs
->mmp_cmp
;
970 if (error
== EXT2_ET_MMP_MAGIC_INVALID
)
971 printf(_("Magic number in MMP block does not "
972 "match. expected: %x, actual: %x\n"),
973 EXT4_MMP_MAGIC
, mmp_cmp
->mmp_magic
);
975 com_err(program_name
, error
, "%s",
976 _("while reading MMP block."));
980 /* We need to force out the group descriptors as well */
981 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
982 ext2fs_block_alloc_stats2(fs
, sb
->s_mmp_block
, -1);
985 sb
->s_mmp_update_interval
= 0;
988 if (FEATURE_ON(E2P_FEATURE_COMPAT
, EXT3_FEATURE_COMPAT_HAS_JOURNAL
)) {
990 * If adding a journal flag, let the create journal
991 * code below handle setting the flag and creating the
992 * journal. We supply a default size if necessary.
996 sb
->s_feature_compat
&= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL
;
999 if (FEATURE_ON(E2P_FEATURE_COMPAT
, EXT2_FEATURE_COMPAT_DIR_INDEX
)) {
1000 if (!sb
->s_def_hash_version
)
1001 sb
->s_def_hash_version
= EXT2_HASH_HALF_MD4
;
1002 if (uuid_is_null((unsigned char *) sb
->s_hash_seed
))
1003 uuid_generate((unsigned char *) sb
->s_hash_seed
);
1006 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT
, EXT4_FEATURE_INCOMPAT_FLEX_BG
)) {
1007 if (ext2fs_check_desc(fs
)) {
1008 fputs(_("Clearing the flex_bg flag would "
1009 "cause the the filesystem to be\n"
1010 "inconsistent.\n"), stderr
);
1015 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT
,
1016 EXT4_FEATURE_RO_COMPAT_HUGE_FILE
)) {
1017 if ((mount_flags
& EXT2_MF_MOUNTED
) &&
1018 !(mount_flags
& EXT2_MF_READONLY
)) {
1019 fputs(_("The huge_file feature may only be "
1020 "cleared when the filesystem is\n"
1021 "unmounted or mounted "
1022 "read-only.\n"), stderr
);
1027 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT
,
1028 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
)) {
1029 if (check_fsck_needed(fs
))
1031 rewrite_checksums
= 1;
1032 /* metadata_csum supersedes uninit_bg */
1033 fs
->super
->s_feature_ro_compat
&=
1034 ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM
;
1036 /* if uninit_bg was previously off, rewrite group desc */
1037 if (!(old_features
[E2P_FEATURE_RO_INCOMPAT
] &
1038 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
))
1039 enable_uninit_bg(fs
);
1042 * Since metadata_csum supersedes uninit_bg, pretend like
1043 * uninit_bg has been off all along.
1045 old_features
[E2P_FEATURE_RO_INCOMPAT
] &=
1046 ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM
;
1049 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT
,
1050 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
)) {
1051 if (check_fsck_needed(fs
))
1053 rewrite_checksums
= 1;
1055 * If we're turning off metadata_csum and not turning on
1056 * uninit_bg, rewrite group desc.
1058 if (!(fs
->super
->s_feature_ro_compat
&
1059 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
))
1060 disable_uninit_bg(fs
,
1061 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
);
1064 * metadata_csum previously provided uninit_bg, so if
1065 * we're also setting the uninit_bg feature bit,
1066 * pretend like it was previously enabled. Checksums
1067 * will be rewritten with crc16 later.
1069 old_features
[E2P_FEATURE_RO_INCOMPAT
] |=
1070 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
;
1073 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT
,
1074 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
)) {
1075 /* Do not enable uninit_bg when metadata_csum enabled */
1076 if (fs
->super
->s_feature_ro_compat
&
1077 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
)
1078 fs
->super
->s_feature_ro_compat
&=
1079 ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM
;
1081 enable_uninit_bg(fs
);
1084 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT
,
1085 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
))
1086 disable_uninit_bg(fs
,
1087 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
);
1089 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT
,
1090 EXT4_FEATURE_RO_COMPAT_QUOTA
)) {
1092 * Set the Q_flag here and handle the quota options in the code
1097 /* Enable both user quota and group quota by default */
1098 usrquota
= QOPT_ENABLE
;
1099 grpquota
= QOPT_ENABLE
;
1101 sb
->s_feature_ro_compat
&= ~EXT4_FEATURE_RO_COMPAT_QUOTA
;
1104 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT
,
1105 EXT4_FEATURE_RO_COMPAT_QUOTA
)) {
1107 * Set the Q_flag here and handle the quota options in the code
1111 fputs(_("\nWarning: '^quota' option overrides '-Q'"
1112 "arguments.\n"), stderr
);
1114 /* Disable both user quota and group quota by default */
1115 usrquota
= QOPT_DISABLE
;
1116 grpquota
= QOPT_DISABLE
;
1119 if (sb
->s_rev_level
== EXT2_GOOD_OLD_REV
&&
1120 (sb
->s_feature_compat
|| sb
->s_feature_ro_compat
||
1121 sb
->s_feature_incompat
))
1122 ext2fs_update_dynamic_rev(fs
);
1124 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT
,
1125 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
) ||
1126 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT
,
1127 EXT4_FEATURE_RO_COMPAT_HUGE_FILE
) ||
1128 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT
,
1129 EXT2_FEATURE_INCOMPAT_FILETYPE
) ||
1130 FEATURE_CHANGED(E2P_FEATURE_COMPAT
,
1131 EXT2_FEATURE_COMPAT_RESIZE_INODE
) ||
1132 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT
,
1133 EXT2_FEATURE_RO_COMPAT_LARGE_FILE
))
1134 request_fsck_afterwards(fs
);
1136 if ((old_features
[E2P_FEATURE_COMPAT
] != sb
->s_feature_compat
) ||
1137 (old_features
[E2P_FEATURE_INCOMPAT
] != sb
->s_feature_incompat
) ||
1138 (old_features
[E2P_FEATURE_RO_INCOMPAT
] != sb
->s_feature_ro_compat
))
1139 ext2fs_mark_super_dirty(fs
);
1145 * Add a journal to the filesystem.
1147 static int add_journal(ext2_filsys fs
)
1149 unsigned long journal_blocks
;
1154 if (fs
->super
->s_feature_compat
&
1155 EXT3_FEATURE_COMPAT_HAS_JOURNAL
) {
1156 fputs(_("The filesystem already has a journal.\n"), stderr
);
1159 if (journal_device
) {
1160 check_plausibility(journal_device
);
1161 check_mount(journal_device
, 0, _("journal"));
1162 #ifdef CONFIG_TESTIO_DEBUG
1163 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1164 io_ptr
= test_io_manager
;
1165 test_io_backing_manager
= unix_io_manager
;
1168 io_ptr
= unix_io_manager
;
1169 retval
= ext2fs_open(journal_device
, EXT2_FLAG_RW
|
1170 EXT2_FLAG_JOURNAL_DEV_OK
, 0,
1171 fs
->blocksize
, io_ptr
, &jfs
);
1173 com_err(program_name
, retval
,
1174 _("\n\twhile trying to open journal on %s\n"),
1178 printf(_("Creating journal on device %s: "),
1182 retval
= ext2fs_add_journal_device(fs
, jfs
);
1185 com_err(program_name
, retval
,
1186 _("while adding filesystem to journal on %s"),
1190 fputs(_("done\n"), stdout
);
1191 } else if (journal_size
) {
1192 fputs(_("Creating journal inode: "), stdout
);
1194 journal_blocks
= figure_journal_size(journal_size
, fs
);
1196 retval
= ext2fs_add_journal_inode(fs
, journal_blocks
,
1199 fprintf(stderr
, "\n");
1200 com_err(program_name
, retval
, "%s",
1201 _("\n\twhile trying to create journal file"));
1204 fputs(_("done\n"), stdout
);
1206 * If the filesystem wasn't mounted, we need to force
1207 * the block group descriptors out.
1209 if ((mount_flags
& EXT2_MF_MOUNTED
) == 0)
1210 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
1212 print_check_message(fs
->super
->s_max_mnt_count
,
1213 fs
->super
->s_checkinterval
);
1217 free(journal_device
);
1221 static void handle_quota_options(ext2_filsys fs
)
1226 if (!usrquota
&& !grpquota
)
1227 /* Nothing to do. */
1230 quota_init_context(&qctx
, fs
, -1);
1232 if (usrquota
== QOPT_ENABLE
|| grpquota
== QOPT_ENABLE
)
1233 quota_compute_usage(qctx
);
1235 if (usrquota
== QOPT_ENABLE
&& !fs
->super
->s_usr_quota_inum
) {
1236 if ((qf_ino
= quota_file_exists(fs
, USRQUOTA
,
1238 quota_update_limits(qctx
, qf_ino
, USRQUOTA
);
1239 quota_write_inode(qctx
, USRQUOTA
);
1240 } else if (usrquota
== QOPT_DISABLE
) {
1241 quota_remove_inode(fs
, USRQUOTA
);
1244 if (grpquota
== QOPT_ENABLE
&& !fs
->super
->s_grp_quota_inum
) {
1245 if ((qf_ino
= quota_file_exists(fs
, GRPQUOTA
,
1247 quota_update_limits(qctx
, qf_ino
, GRPQUOTA
);
1248 quota_write_inode(qctx
, GRPQUOTA
);
1249 } else if (grpquota
== QOPT_DISABLE
) {
1250 quota_remove_inode(fs
, GRPQUOTA
);
1253 quota_release_context(&qctx
);
1255 if ((usrquota
== QOPT_ENABLE
) || (grpquota
== QOPT_ENABLE
)) {
1256 fprintf(stderr
, "%s", _("\nWarning: the quota feature is still "
1257 "under development\n"
1258 "See https://ext4.wiki.kernel.org/"
1259 "index.php/Quota for more information\n\n"));
1260 fs
->super
->s_feature_ro_compat
|= EXT4_FEATURE_RO_COMPAT_QUOTA
;
1261 ext2fs_mark_super_dirty(fs
);
1262 } else if (!fs
->super
->s_usr_quota_inum
&&
1263 !fs
->super
->s_grp_quota_inum
) {
1264 fs
->super
->s_feature_ro_compat
&= ~EXT4_FEATURE_RO_COMPAT_QUOTA
;
1265 ext2fs_mark_super_dirty(fs
);
1272 static void parse_quota_opts(const char *opts
)
1274 char *buf
, *token
, *next
, *p
;
1278 buf
= malloc(len
+1);
1280 fputs(_("Couldn't allocate memory to parse quota "
1281 "options!\n"), stderr
);
1285 for (token
= buf
; token
&& *token
; token
= next
) {
1286 p
= strchr(token
, ',');
1293 if (strcmp(token
, "usrquota") == 0) {
1294 usrquota
= QOPT_ENABLE
;
1295 } else if (strcmp(token
, "^usrquota") == 0) {
1296 usrquota
= QOPT_DISABLE
;
1297 } else if (strcmp(token
, "grpquota") == 0) {
1298 grpquota
= QOPT_ENABLE
;
1299 } else if (strcmp(token
, "^grpquota") == 0) {
1300 grpquota
= QOPT_DISABLE
;
1302 fputs(_("\nBad quota options specified.\n\n"
1303 "Following valid quota options are available "
1304 "(pass by separating with comma):\n"
1316 static void parse_e2label_options(int argc
, char ** argv
)
1318 if ((argc
< 2) || (argc
> 3)) {
1319 fputs(_("Usage: e2label device [newlabel]\n"), stderr
);
1322 io_options
= strchr(argv
[1], '?');
1325 device_name
= blkid_get_devname(NULL
, argv
[1], NULL
);
1327 com_err("e2label", 0, _("Unable to resolve '%s'"),
1331 open_flag
= EXT2_FLAG_JOURNAL_DEV_OK
;
1333 open_flag
|= EXT2_FLAG_RW
;
1335 new_label
= argv
[2];
1340 static time_t parse_time(char *str
)
1344 if (strcmp(str
, "now") == 0) {
1347 memset(&ts
, 0, sizeof(ts
));
1348 #ifdef HAVE_STRPTIME
1349 strptime(str
, "%Y%m%d%H%M%S", &ts
);
1351 sscanf(str
, "%4d%2d%2d%2d%2d%2d", &ts
.tm_year
, &ts
.tm_mon
,
1352 &ts
.tm_mday
, &ts
.tm_hour
, &ts
.tm_min
, &ts
.tm_sec
);
1355 if (ts
.tm_year
< 0 || ts
.tm_mon
< 0 || ts
.tm_mon
> 11 ||
1356 ts
.tm_mday
< 0 || ts
.tm_mday
> 31 || ts
.tm_hour
> 23 ||
1357 ts
.tm_min
> 59 || ts
.tm_sec
> 61)
1360 if (ts
.tm_mday
== 0) {
1361 com_err(program_name
, 0,
1362 _("Couldn't parse date/time specifier: %s"),
1367 return (mktime(&ts
));
1370 static void parse_tune2fs_options(int argc
, char **argv
)
1376 char optstring
[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:";
1379 strcat(optstring
, "Q:");
1383 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION
, E2FSPROGS_DATE
);
1384 while ((c
= getopt(argc
, argv
, optstring
)) != EOF
)
1387 max_mount_count
= strtol(optarg
, &tmp
, 0);
1388 if (*tmp
|| max_mount_count
> 16000) {
1389 com_err(program_name
, 0,
1390 _("bad mounts count - %s"),
1394 if (max_mount_count
== 0)
1395 max_mount_count
= -1;
1397 open_flag
= EXT2_FLAG_RW
;
1400 mount_count
= strtoul(optarg
, &tmp
, 0);
1401 if (*tmp
|| mount_count
> 16000) {
1402 com_err(program_name
, 0,
1403 _("bad mounts count - %s"),
1408 open_flag
= EXT2_FLAG_RW
;
1411 if (strcmp(optarg
, "continue") == 0)
1412 errors
= EXT2_ERRORS_CONTINUE
;
1413 else if (strcmp(optarg
, "remount-ro") == 0)
1414 errors
= EXT2_ERRORS_RO
;
1415 else if (strcmp(optarg
, "panic") == 0)
1416 errors
= EXT2_ERRORS_PANIC
;
1418 com_err(program_name
, 0,
1419 _("bad error behavior - %s"),
1424 open_flag
= EXT2_FLAG_RW
;
1427 extended_cmd
= optarg
;
1428 open_flag
|= EXT2_FLAG_RW
;
1430 case 'f': /* Force */
1434 resgid
= strtoul(optarg
, &tmp
, 0);
1436 gr
= getgrnam(optarg
);
1440 resgid
= gr
->gr_gid
;
1445 com_err(program_name
, 0,
1446 _("bad gid/group name - %s"),
1451 open_flag
= EXT2_FLAG_RW
;
1454 interval
= strtoul(optarg
, &tmp
, 0);
1461 case 'D': /* days */
1467 case 'M': /* months! */
1468 interval
*= 86400 * 30;
1472 case 'W': /* weeks */
1473 interval
*= 86400 * 7;
1478 com_err(program_name
, 0,
1479 _("bad interval - %s"), optarg
);
1483 open_flag
= EXT2_FLAG_RW
;
1488 open_flag
= EXT2_FLAG_RW
;
1491 parse_journal_opts(optarg
);
1492 open_flag
= EXT2_FLAG_RW
;
1500 open_flag
|= EXT2_FLAG_RW
|
1501 EXT2_FLAG_JOURNAL_DEV_OK
;
1504 reserved_ratio
= strtod(optarg
, &tmp
);
1505 if (*tmp
|| reserved_ratio
> 50 ||
1506 reserved_ratio
< 0) {
1507 com_err(program_name
, 0,
1508 _("bad reserved block ratio - %s"),
1513 open_flag
= EXT2_FLAG_RW
;
1516 new_last_mounted
= optarg
;
1518 open_flag
= EXT2_FLAG_RW
;
1522 com_err(program_name
, 0, "%s",
1523 _("-o may only be specified once"));
1526 mntopts_cmd
= optarg
;
1527 open_flag
= EXT2_FLAG_RW
;
1531 com_err(program_name
, 0, "%s",
1532 _("-O may only be specified once"));
1535 features_cmd
= optarg
;
1536 open_flag
= EXT2_FLAG_RW
;
1541 parse_quota_opts(optarg
);
1542 open_flag
= EXT2_FLAG_RW
;
1546 reserved_blocks
= strtoul(optarg
, &tmp
, 0);
1548 com_err(program_name
, 0,
1549 _("bad reserved blocks count - %s"),
1554 open_flag
= EXT2_FLAG_RW
;
1556 case 's': /* Deprecated */
1557 s_flag
= atoi(optarg
);
1558 open_flag
= EXT2_FLAG_RW
;
1562 last_check_time
= parse_time(optarg
);
1563 open_flag
= EXT2_FLAG_RW
;
1566 resuid
= strtoul(optarg
, &tmp
, 0);
1568 pw
= getpwnam(optarg
);
1572 resuid
= pw
->pw_uid
;
1577 com_err(program_name
, 0,
1578 _("bad uid/user name - %s"),
1583 open_flag
= EXT2_FLAG_RW
;
1588 open_flag
= EXT2_FLAG_RW
|
1589 EXT2_FLAG_JOURNAL_DEV_OK
;
1592 new_inode_size
= strtoul(optarg
, &tmp
, 0);
1594 com_err(program_name
, 0,
1595 _("bad inode size - %s"),
1599 if (!((new_inode_size
&
1600 (new_inode_size
- 1)) == 0)) {
1601 com_err(program_name
, 0,
1602 _("Inode size must be a "
1603 "power of two- %s"),
1607 open_flag
= EXT2_FLAG_RW
;
1613 if (optind
< argc
- 1 || optind
== argc
)
1615 if (!open_flag
&& !l_flag
)
1617 io_options
= strchr(argv
[optind
], '?');
1620 device_name
= blkid_get_devname(NULL
, argv
[optind
], NULL
);
1622 com_err(program_name
, 0, _("Unable to resolve '%s'"),
1628 #ifdef CONFIG_BUILD_FINDFS
1629 void do_findfs(int argc
, char **argv
)
1634 (strncmp(argv
[1], "LABEL=", 6) && strncmp(argv
[1], "UUID=", 5))) {
1635 fprintf(stderr
, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
1638 dev
= blkid_get_devname(NULL
, argv
[1], NULL
);
1640 com_err("findfs", 0, _("Unable to resolve '%s'"),
1649 static int parse_extended_opts(ext2_filsys fs
, const char *opts
)
1651 char *buf
, *token
, *next
, *p
, *arg
;
1656 buf
= malloc(len
+1);
1658 fprintf(stderr
, "%s",
1659 _("Couldn't allocate memory to parse options!\n"));
1663 for (token
= buf
; token
&& *token
; token
= next
) {
1664 p
= strchr(token
, ',');
1670 arg
= strchr(token
, '=');
1675 if (strcmp(token
, "clear-mmp") == 0 ||
1676 strcmp(token
, "clear_mmp") == 0) {
1678 } else if (strcmp(token
, "mmp_update_interval") == 0) {
1684 intv
= strtoul(arg
, &p
, 0);
1687 _("Invalid mmp_update_interval: %s\n"),
1693 intv
= EXT4_MMP_UPDATE_INTERVAL
;
1694 } else if (intv
> EXT4_MMP_MAX_UPDATE_INTERVAL
) {
1696 _("mmp_update_interval too big: %lu\n"),
1701 printf(P_("Setting multiple mount protection update "
1702 "interval to %lu second\n",
1703 "Setting multiple mount protection update "
1704 "interval to %lu seconds\n", intv
),
1706 fs
->super
->s_mmp_update_interval
= intv
;
1707 ext2fs_mark_super_dirty(fs
);
1708 } else if (!strcmp(token
, "test_fs")) {
1709 fs
->super
->s_flags
|= EXT2_FLAGS_TEST_FILESYS
;
1710 printf("Setting test filesystem flag\n");
1711 ext2fs_mark_super_dirty(fs
);
1712 } else if (!strcmp(token
, "^test_fs")) {
1713 fs
->super
->s_flags
&= ~EXT2_FLAGS_TEST_FILESYS
;
1714 printf("Clearing test filesystem flag\n");
1715 ext2fs_mark_super_dirty(fs
);
1716 } else if (strcmp(token
, "stride") == 0) {
1721 stride
= strtoul(arg
, &p
, 0);
1724 _("Invalid RAID stride: %s\n"),
1730 } else if (strcmp(token
, "stripe-width") == 0 ||
1731 strcmp(token
, "stripe_width") == 0) {
1736 stripe_width
= strtoul(arg
, &p
, 0);
1739 _("Invalid RAID stripe-width: %s\n"),
1744 stripe_width_set
= 1;
1745 } else if (strcmp(token
, "hash_alg") == 0 ||
1746 strcmp(token
, "hash-alg") == 0) {
1751 hash_alg
= e2p_string2hash(arg
);
1754 _("Invalid hash algorithm: %s\n"),
1759 fs
->super
->s_def_hash_version
= hash_alg
;
1760 printf(_("Setting default hash algorithm "
1763 ext2fs_mark_super_dirty(fs
);
1764 } else if (!strcmp(token
, "mount_opts")) {
1769 if (strlen(arg
) >= sizeof(fs
->super
->s_mount_opts
)) {
1771 "Extended mount options too long\n");
1774 ext_mount_opts
= strdup(arg
);
1779 fprintf(stderr
, "%s", _("\nBad options specified.\n\n"
1780 "Extended options are separated by commas, "
1781 "and may take an argument which\n"
1782 "\tis set off by an equals ('=') sign.\n\n"
1783 "Valid extended options are:\n"
1785 "\thash_alg=<hash algorithm>\n"
1786 "\tmount_opts=<extended default mount options>\n"
1787 "\tstride=<RAID per-disk chunk size in blocks>\n"
1788 "\tstripe_width=<RAID stride*data disks in blocks>\n"
1800 * Fill in the block bitmap bmap with the information regarding the
1801 * blocks to be moved
1803 static int get_move_bitmaps(ext2_filsys fs
, int new_ino_blks_per_grp
,
1804 ext2fs_block_bitmap bmap
)
1808 ext2_badblocks_list bb_list
= 0;
1809 blk64_t j
, needed_blocks
= 0;
1810 blk64_t start_blk
, end_blk
;
1812 retval
= ext2fs_read_bb_inode(fs
, &bb_list
);
1816 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
1817 start_blk
= ext2fs_inode_table_loc(fs
, i
) +
1818 fs
->inode_blocks_per_group
;
1820 end_blk
= ext2fs_inode_table_loc(fs
, i
) +
1821 new_ino_blks_per_grp
;
1823 for (j
= start_blk
; j
< end_blk
; j
++) {
1824 if (ext2fs_test_block_bitmap2(fs
->block_map
, j
)) {
1826 * IF the block is a bad block we fail
1828 if (ext2fs_badblocks_list_test(bb_list
, j
)) {
1829 ext2fs_badblocks_list_free(bb_list
);
1833 ext2fs_mark_block_bitmap2(bmap
, j
);
1836 * We are going to use this block for
1837 * inode table. So mark them used.
1839 ext2fs_mark_block_bitmap2(fs
->block_map
, j
);
1842 needed_blocks
+= end_blk
- start_blk
;
1845 ext2fs_badblocks_list_free(bb_list
);
1846 if (needed_blocks
> ext2fs_free_blocks_count(fs
->super
))
1852 static int ext2fs_is_meta_block(ext2_filsys fs
, blk64_t blk
)
1855 group
= ext2fs_group_of_blk2(fs
, blk
);
1856 if (ext2fs_block_bitmap_loc(fs
, group
) == blk
)
1858 if (ext2fs_inode_bitmap_loc(fs
, group
) == blk
)
1863 static int ext2fs_is_block_in_group(ext2_filsys fs
, dgrp_t group
, blk64_t blk
)
1865 blk64_t start_blk
, end_blk
;
1866 start_blk
= fs
->super
->s_first_data_block
+
1867 EXT2_BLOCKS_PER_GROUP(fs
->super
) * group
;
1869 * We cannot get new block beyond end_blk for for the last block group
1870 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group
1872 end_blk
= start_blk
+ EXT2_BLOCKS_PER_GROUP(fs
->super
);
1873 if (blk
>= start_blk
&& blk
<= end_blk
)
1878 static int move_block(ext2_filsys fs
, ext2fs_block_bitmap bmap
)
1885 blk64_t blk
, new_blk
, goal
;
1886 struct blk_move
*bmv
;
1888 retval
= ext2fs_get_mem(fs
->blocksize
, &buf
);
1892 for (new_blk
= blk
= fs
->super
->s_first_data_block
;
1893 blk
< ext2fs_blocks_count(fs
->super
); blk
++) {
1894 if (!ext2fs_test_block_bitmap2(bmap
, blk
))
1897 if (ext2fs_is_meta_block(fs
, blk
)) {
1899 * If the block is mapping a fs meta data block
1900 * like group desc/block bitmap/inode bitmap. We
1901 * should find a block in the same group and fix
1902 * the respective fs metadata pointers. Otherwise
1905 group
= ext2fs_group_of_blk2(fs
, blk
);
1906 goal
= ext2fs_group_first_block2(fs
, group
);
1912 retval
= ext2fs_new_block2(fs
, goal
, NULL
, &new_blk
);
1916 /* new fs meta data block should be in the same group */
1917 if (meta_data
&& !ext2fs_is_block_in_group(fs
, group
, new_blk
)) {
1922 /* Mark this block as allocated */
1923 ext2fs_mark_block_bitmap2(fs
->block_map
, new_blk
);
1925 /* Add it to block move list */
1926 retval
= ext2fs_get_mem(sizeof(struct blk_move
), &bmv
);
1931 bmv
->new_loc
= new_blk
;
1933 list_add(&(bmv
->list
), &blk_move_list
);
1935 retval
= io_channel_read_blk64(fs
->io
, blk
, 1, buf
);
1939 retval
= io_channel_write_blk64(fs
->io
, new_blk
, 1, buf
);
1945 ext2fs_free_mem(&buf
);
1949 static blk64_t
translate_block(blk64_t blk
)
1951 struct list_head
*entry
;
1952 struct blk_move
*bmv
;
1954 list_for_each(entry
, &blk_move_list
) {
1955 bmv
= list_entry(entry
, struct blk_move
, list
);
1956 if (bmv
->old_loc
== blk
)
1957 return bmv
->new_loc
;
1963 static int process_block(ext2_filsys fs
EXT2FS_ATTR((unused
)),
1965 e2_blkcnt_t blockcnt
EXT2FS_ATTR((unused
)),
1966 blk64_t ref_block
EXT2FS_ATTR((unused
)),
1967 int ref_offset
EXT2FS_ATTR((unused
)),
1972 ext2fs_block_bitmap bmap
= (ext2fs_block_bitmap
) priv_data
;
1974 if (!ext2fs_test_block_bitmap2(bmap
, *block_nr
))
1976 new_blk
= translate_block(*block_nr
);
1978 *block_nr
= new_blk
;
1980 * This will force the ext2fs_write_inode in the iterator
1982 ret
|= BLOCK_CHANGED
;
1988 static int inode_scan_and_fix(ext2_filsys fs
, ext2fs_block_bitmap bmap
)
1990 errcode_t retval
= 0;
1993 char *block_buf
= 0;
1994 struct ext2_inode inode
;
1995 ext2_inode_scan scan
= NULL
;
1997 retval
= ext2fs_get_mem(fs
->blocksize
* 3, &block_buf
);
2001 retval
= ext2fs_open_inode_scan(fs
, 0, &scan
);
2006 retval
= ext2fs_get_next_inode(scan
, &ino
, &inode
);
2013 if (inode
.i_links_count
== 0)
2014 continue; /* inode not in use */
2017 * If we end up modifying the journal inode
2018 * the sb->s_jnl_blocks will differ. But a
2019 * subsequent e2fsck fixes that.
2020 * Do we need to fix this ??
2023 if (ext2fs_file_acl_block(fs
, &inode
) &&
2024 ext2fs_test_block_bitmap2(bmap
,
2025 ext2fs_file_acl_block(fs
, &inode
))) {
2026 blk
= translate_block(ext2fs_file_acl_block(fs
,
2031 ext2fs_file_acl_block_set(fs
, &inode
, blk
);
2034 * Write the inode to disk so that inode table
2037 retval
= ext2fs_write_inode(fs
, ino
, &inode
);
2042 if (!ext2fs_inode_has_valid_blocks2(fs
, &inode
))
2045 retval
= ext2fs_block_iterate3(fs
, ino
, 0, block_buf
,
2046 process_block
, bmap
);
2053 ext2fs_free_mem(&block_buf
);
2059 * We need to scan for inode and block bitmaps that may need to be
2060 * moved. This can take place if the filesystem was formatted for
2061 * RAID arrays using the mke2fs's extended option "stride".
2063 static int group_desc_scan_and_fix(ext2_filsys fs
, ext2fs_block_bitmap bmap
)
2066 blk64_t blk
, new_blk
;
2068 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
2069 blk
= ext2fs_block_bitmap_loc(fs
, i
);
2070 if (ext2fs_test_block_bitmap2(bmap
, blk
)) {
2071 new_blk
= translate_block(blk
);
2074 ext2fs_block_bitmap_loc_set(fs
, i
, new_blk
);
2077 blk
= ext2fs_inode_bitmap_loc(fs
, i
);
2078 if (ext2fs_test_block_bitmap2(bmap
, blk
)) {
2079 new_blk
= translate_block(blk
);
2082 ext2fs_inode_bitmap_loc_set(fs
, i
, new_blk
);
2088 static int expand_inode_table(ext2_filsys fs
, unsigned long new_ino_size
)
2093 int new_ino_blks_per_grp
;
2095 char *old_itable
= NULL
, *new_itable
= NULL
;
2096 char *tmp_old_itable
= NULL
, *tmp_new_itable
= NULL
;
2097 unsigned long old_ino_size
;
2098 int old_itable_size
, new_itable_size
;
2100 old_itable_size
= fs
->inode_blocks_per_group
* fs
->blocksize
;
2101 old_ino_size
= EXT2_INODE_SIZE(fs
->super
);
2103 new_ino_blks_per_grp
= ext2fs_div_ceil(
2104 EXT2_INODES_PER_GROUP(fs
->super
) *
2108 new_itable_size
= new_ino_blks_per_grp
* fs
->blocksize
;
2110 retval
= ext2fs_get_mem(old_itable_size
, &old_itable
);
2114 retval
= ext2fs_get_mem(new_itable_size
, &new_itable
);
2118 tmp_old_itable
= old_itable
;
2119 tmp_new_itable
= new_itable
;
2121 for (i
= 0; i
< fs
->group_desc_count
; i
++) {
2122 blk
= ext2fs_inode_table_loc(fs
, i
);
2123 retval
= io_channel_read_blk64(fs
->io
, blk
,
2124 fs
->inode_blocks_per_group
, old_itable
);
2128 for (j
= 0; j
< EXT2_INODES_PER_GROUP(fs
->super
); j
++) {
2129 memcpy(new_itable
, old_itable
, old_ino_size
);
2131 memset(new_itable
+old_ino_size
, 0,
2132 new_ino_size
- old_ino_size
);
2134 new_itable
+= new_ino_size
;
2135 old_itable
+= old_ino_size
;
2138 /* reset the pointer */
2139 old_itable
= tmp_old_itable
;
2140 new_itable
= tmp_new_itable
;
2142 retval
= io_channel_write_blk64(fs
->io
, blk
,
2143 new_ino_blks_per_grp
, new_itable
);
2148 /* Update the meta data */
2149 fs
->inode_blocks_per_group
= new_ino_blks_per_grp
;
2150 fs
->super
->s_inode_size
= new_ino_size
;
2154 ext2fs_free_mem(&old_itable
);
2157 ext2fs_free_mem(&new_itable
);
2162 static errcode_t
ext2fs_calculate_summary_stats(ext2_filsys fs
)
2166 unsigned int group
= 0;
2167 unsigned int count
= 0;
2172 * First calculate the block statistics
2174 for (blk
= fs
->super
->s_first_data_block
;
2175 blk
< ext2fs_blocks_count(fs
->super
); blk
++) {
2176 if (!ext2fs_fast_test_block_bitmap2(fs
->block_map
, blk
)) {
2181 if ((count
== fs
->super
->s_blocks_per_group
) ||
2182 (blk
== ext2fs_blocks_count(fs
->super
)-1)) {
2183 ext2fs_bg_free_blocks_count_set(fs
, group
++,
2189 total_free
= EXT2FS_C2B(fs
, total_free
);
2190 ext2fs_free_blocks_count_set(fs
->super
, total_free
);
2193 * Next, calculate the inode statistics
2200 /* Protect loop from wrap-around if s_inodes_count maxed */
2201 for (ino
= 1; ino
<= fs
->super
->s_inodes_count
&& ino
> 0; ino
++) {
2202 if (!ext2fs_fast_test_inode_bitmap2(fs
->inode_map
, ino
)) {
2207 if ((count
== fs
->super
->s_inodes_per_group
) ||
2208 (ino
== fs
->super
->s_inodes_count
)) {
2209 ext2fs_bg_free_inodes_count_set(fs
, group
++,
2215 fs
->super
->s_free_inodes_count
= total_free
;
2216 ext2fs_mark_super_dirty(fs
);
2220 #define list_for_each_safe(pos, pnext, head) \
2221 for (pos = (head)->next, pnext = pos->next; pos != (head); \
2222 pos = pnext, pnext = pos->next)
2224 static void free_blk_move_list(void)
2226 struct list_head
*entry
, *tmp
;
2227 struct blk_move
*bmv
;
2229 list_for_each_safe(entry
, tmp
, &blk_move_list
) {
2230 bmv
= list_entry(entry
, struct blk_move
, list
);
2232 ext2fs_free_mem(&bmv
);
2237 static int resize_inode(ext2_filsys fs
, unsigned long new_size
)
2240 int new_ino_blks_per_grp
;
2241 ext2fs_block_bitmap bmap
;
2243 retval
= ext2fs_read_inode_bitmap(fs
);
2245 fputs(_("Failed to read inode bitmap\n"), stderr
);
2248 retval
= ext2fs_read_block_bitmap(fs
);
2250 fputs(_("Failed to read block bitmap\n"), stderr
);
2253 INIT_LIST_HEAD(&blk_move_list
);
2256 new_ino_blks_per_grp
= ext2fs_div_ceil(
2257 EXT2_INODES_PER_GROUP(fs
->super
)*
2261 /* We may change the file system.
2262 * Mark the file system as invalid so that
2263 * the user is prompted to run fsck.
2265 fs
->super
->s_state
&= ~EXT2_VALID_FS
;
2267 retval
= ext2fs_allocate_block_bitmap(fs
, _("blocks to be moved"),
2270 fputs(_("Failed to allocate block bitmap when "
2271 "increasing inode size\n"), stderr
);
2274 retval
= get_move_bitmaps(fs
, new_ino_blks_per_grp
, bmap
);
2276 fputs(_("Not enough space to increase inode size \n"), stderr
);
2279 retval
= move_block(fs
, bmap
);
2281 fputs(_("Failed to relocate blocks during inode resize \n"),
2285 retval
= inode_scan_and_fix(fs
, bmap
);
2289 retval
= group_desc_scan_and_fix(fs
, bmap
);
2293 retval
= expand_inode_table(fs
, new_size
);
2297 ext2fs_calculate_summary_stats(fs
);
2299 fs
->super
->s_state
|= EXT2_VALID_FS
;
2300 /* mark super block and block bitmap as dirty */
2301 ext2fs_mark_super_dirty(fs
);
2302 ext2fs_mark_bb_dirty(fs
);
2305 free_blk_move_list();
2306 ext2fs_free_block_bitmap(bmap
);
2311 free_blk_move_list();
2312 ext2fs_free_block_bitmap(bmap
);
2313 fputs(_("Error in resizing the inode size.\n"
2314 "Run e2undo to undo the "
2315 "file system changes. \n"), stderr
);
2320 static int tune2fs_setup_tdb(const char *name
, io_manager
*io_ptr
)
2322 errcode_t retval
= 0;
2323 const char *tdb_dir
;
2325 char *dev_name
, *tmp_name
;
2329 * Configuration via a conf file would be
2332 profile_get_string(profile
, "scratch_files",
2336 tmp_name
= strdup(name
);
2339 com_err(program_name
, ENOMEM
, "%s",
2340 _("Couldn't allocate memory for tdb filename\n"));
2343 dev_name
= basename(tmp_name
);
2345 tdb_dir
= getenv("E2FSPROGS_UNDO_DIR");
2347 tdb_dir
= "/var/lib/e2fsprogs";
2349 if (!strcmp(tdb_dir
, "none") || (tdb_dir
[0] == 0) ||
2350 access(tdb_dir
, W_OK
))
2353 tdb_file
= malloc(strlen(tdb_dir
) + 9 + strlen(dev_name
) + 7 + 1);
2356 sprintf(tdb_file
, "%s/tune2fs-%s.e2undo", tdb_dir
, dev_name
);
2358 if (!access(tdb_file
, F_OK
)) {
2359 if (unlink(tdb_file
) < 0) {
2361 com_err(program_name
, retval
,
2362 _("while trying to delete %s"),
2369 set_undo_io_backing_manager(*io_ptr
);
2370 *io_ptr
= undo_io_manager
;
2371 set_undo_io_backup_file(tdb_file
);
2372 printf(_("To undo the tune2fs operation please run "
2373 "the command\n e2undo %s %s\n\n"),
2380 int main(int argc
, char **argv
)
2384 struct ext2_super_block
*sb
;
2385 io_manager io_ptr
, io_ptr_orig
= NULL
;
2389 setlocale(LC_MESSAGES
, "");
2390 setlocale(LC_CTYPE
, "");
2391 bindtextdomain(NLS_CAT_NAME
, LOCALEDIR
);
2392 textdomain(NLS_CAT_NAME
);
2393 set_com_err_gettext(gettext
);
2396 program_name
= *argv
;
2397 add_error_table(&et_ext2_error_table
);
2399 #ifdef CONFIG_BUILD_FINDFS
2400 if (strcmp(get_progname(argv
[0]), "findfs") == 0)
2401 do_findfs(argc
, argv
);
2403 if (strcmp(get_progname(argv
[0]), "e2label") == 0)
2404 parse_e2label_options(argc
, argv
);
2406 parse_tune2fs_options(argc
, argv
);
2408 #ifdef CONFIG_TESTIO_DEBUG
2409 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) {
2410 io_ptr
= test_io_manager
;
2411 test_io_backing_manager
= unix_io_manager
;
2414 io_ptr
= unix_io_manager
;
2417 if ((open_flag
& EXT2_FLAG_RW
) == 0 || f_flag
)
2418 open_flag
|= EXT2_FLAG_SKIP_MMP
;
2420 open_flag
|= EXT2_FLAG_64BITS
;
2422 /* keep the filesystem struct around to dump MMP data */
2423 open_flag
|= EXT2_FLAG_NOFREE_ON_ERROR
;
2425 retval
= ext2fs_open2(device_name
, io_options
, open_flag
,
2428 com_err(program_name
, retval
,
2429 _("while trying to open %s"),
2431 if (retval
== EXT2_ET_MMP_FSCK_ON
||
2432 retval
== EXT2_ET_MMP_UNKNOWN_SEQ
)
2433 dump_mmp_msg(fs
->mmp_buf
,
2434 _("If you are sure the filesystem "
2435 "is not in use on any node, run:\n"
2436 "'tune2fs -f -E clear_mmp {device}'\n"));
2437 else if (retval
== EXT2_ET_MMP_FAILED
)
2438 dump_mmp_msg(fs
->mmp_buf
, NULL
);
2439 else if (retval
== EXT2_ET_MMP_MAGIC_INVALID
)
2441 _("MMP block magic is bad. Try to fix it by "
2442 "running:\n'e2fsck -f %s'\n"), device_name
);
2443 else if (retval
!= EXT2_ET_MMP_FAILED
)
2444 fprintf(stderr
, "%s",
2445 _("Couldn't find valid filesystem superblock.\n"));
2450 fs
->default_bitmap_type
= EXT2FS_BMAP64_RBTREE
;
2452 if (I_flag
&& !io_ptr_orig
) {
2454 * Check the inode size is right so we can issue an
2455 * error message and bail before setting up the tdb
2458 if (new_inode_size
== EXT2_INODE_SIZE(fs
->super
)) {
2459 fprintf(stderr
, _("The inode size is already %lu\n"),
2464 if (new_inode_size
< EXT2_INODE_SIZE(fs
->super
)) {
2465 fprintf(stderr
, "%s",
2466 _("Shrinking inode size is not supported\n"));
2470 if (new_inode_size
> fs
->blocksize
) {
2471 fprintf(stderr
, _("Invalid inode size %lu (max %d)\n"),
2472 new_inode_size
, fs
->blocksize
);
2478 * If inode resize is requested use the
2481 io_ptr_orig
= io_ptr
;
2482 retval
= tune2fs_setup_tdb(device_name
, &io_ptr
);
2487 if (io_ptr
!= io_ptr_orig
) {
2494 fs
->flags
&= ~EXT2_FLAG_MASTER_SB_ONLY
;
2497 /* For e2label emulation */
2498 printf("%.*s\n", (int) sizeof(sb
->s_volume_name
),
2500 remove_error_table(&et_ext2_error_table
);
2504 retval
= ext2fs_check_if_mounted(device_name
, &mount_flags
);
2506 com_err("ext2fs_check_if_mount", retval
,
2507 _("while determining whether %s is mounted."),
2512 /* Normally we only need to write out the superblock */
2513 fs
->flags
|= EXT2_FLAG_SUPER_ONLY
;
2516 sb
->s_max_mnt_count
= max_mount_count
;
2517 ext2fs_mark_super_dirty(fs
);
2518 printf(_("Setting maximal mount count to %d\n"),
2522 sb
->s_mnt_count
= mount_count
;
2523 ext2fs_mark_super_dirty(fs
);
2524 printf(_("Setting current mount count to %d\n"), mount_count
);
2527 sb
->s_errors
= errors
;
2528 ext2fs_mark_super_dirty(fs
);
2529 printf(_("Setting error behavior to %d\n"), errors
);
2532 sb
->s_def_resgid
= resgid
;
2533 ext2fs_mark_super_dirty(fs
);
2534 printf(_("Setting reserved blocks gid to %lu\n"), resgid
);
2537 if (interval
>= (1ULL << 32)) {
2538 com_err(program_name
, 0,
2539 _("interval between checks is too big (%lu)"),
2544 sb
->s_checkinterval
= interval
;
2545 ext2fs_mark_super_dirty(fs
);
2546 printf(_("Setting interval between checks to %lu seconds\n"),
2550 ext2fs_r_blocks_count_set(sb
, reserved_ratio
*
2551 ext2fs_blocks_count(sb
) / 100.0);
2552 ext2fs_mark_super_dirty(fs
);
2553 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"),
2554 reserved_ratio
, ext2fs_r_blocks_count(sb
));
2557 if (reserved_blocks
> ext2fs_blocks_count(sb
)/2) {
2558 com_err(program_name
, 0,
2559 _("reserved blocks count is too big (%llu)"),
2564 ext2fs_r_blocks_count_set(sb
, reserved_blocks
);
2565 ext2fs_mark_super_dirty(fs
);
2566 printf(_("Setting reserved blocks count to %llu\n"),
2570 if (sb
->s_feature_ro_compat
&
2571 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
)
2572 fputs(_("\nThe filesystem already has sparse "
2573 "superblocks.\n"), stderr
);
2575 sb
->s_feature_ro_compat
|=
2576 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
;
2577 sb
->s_state
&= ~EXT2_VALID_FS
;
2578 ext2fs_mark_super_dirty(fs
);
2579 printf(_("\nSparse superblock flag set. %s"),
2584 fputs(_("\nClearing the sparse superflag not supported.\n"),
2590 sb
->s_lastcheck
= last_check_time
;
2591 ext2fs_mark_super_dirty(fs
);
2592 printf(_("Setting time filesystem last checked to %s\n"),
2593 ctime(&last_check_time
));
2596 sb
->s_def_resuid
= resuid
;
2597 ext2fs_mark_super_dirty(fs
);
2598 printf(_("Setting reserved blocks uid to %lu\n"), resuid
);
2601 if (strlen(new_label
) > sizeof(sb
->s_volume_name
))
2602 fputs(_("Warning: label too long, truncating.\n"),
2604 memset(sb
->s_volume_name
, 0, sizeof(sb
->s_volume_name
));
2605 strncpy(sb
->s_volume_name
, new_label
,
2606 sizeof(sb
->s_volume_name
));
2607 ext2fs_mark_super_dirty(fs
);
2610 memset(sb
->s_last_mounted
, 0, sizeof(sb
->s_last_mounted
));
2611 strncpy(sb
->s_last_mounted
, new_last_mounted
,
2612 sizeof(sb
->s_last_mounted
));
2613 ext2fs_mark_super_dirty(fs
);
2616 rc
= update_mntopts(fs
, mntopts_cmd
);
2621 rc
= update_feature_set(fs
, features_cmd
);
2626 rc
= parse_extended_opts(fs
, extended_cmd
);
2629 if (clear_mmp
&& !f_flag
) {
2630 fputs(_("Error in using clear_mmp. "
2631 "It must be used with -f\n"),
2637 rc
= ext2fs_mmp_clear(fs
);
2640 if (journal_size
|| journal_device
) {
2641 rc
= add_journal(fs
);
2647 if (mount_flags
& EXT2_MF_MOUNTED
) {
2648 fputs(_("The quota feature may only be changed when "
2649 "the filesystem is unmounted.\n"), stderr
);
2653 handle_quota_options(fs
);
2660 if (ext2fs_has_group_desc_csum(fs
)) {
2662 * Changing the UUID requires rewriting all metadata,
2663 * which can race with a mounted fs. Don't allow that.
2665 if (mount_flags
& EXT2_MF_MOUNTED
) {
2666 fputs(_("The UUID may only be "
2667 "changed when the filesystem is "
2668 "unmounted.\n"), stderr
);
2671 if (check_fsck_needed(fs
))
2675 * Determine if the block group checksums are
2676 * correct so we know whether or not to set
2679 for (i
= 0; i
< fs
->group_desc_count
; i
++)
2680 if (!ext2fs_group_desc_csum_verify(fs
, i
))
2682 if (i
>= fs
->group_desc_count
)
2685 if ((strcasecmp(new_UUID
, "null") == 0) ||
2686 (strcasecmp(new_UUID
, "clear") == 0)) {
2687 uuid_clear(sb
->s_uuid
);
2688 } else if (strcasecmp(new_UUID
, "time") == 0) {
2689 uuid_generate_time(sb
->s_uuid
);
2690 } else if (strcasecmp(new_UUID
, "random") == 0) {
2691 uuid_generate(sb
->s_uuid
);
2692 } else if (uuid_parse(new_UUID
, sb
->s_uuid
)) {
2693 com_err(program_name
, 0, "%s",
2694 _("Invalid UUID format\n"));
2698 ext2fs_init_csum_seed(fs
);
2700 for (i
= 0; i
< fs
->group_desc_count
; i
++)
2701 ext2fs_group_desc_csum_set(fs
, i
);
2702 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
2704 ext2fs_mark_super_dirty(fs
);
2705 if (EXT2_HAS_RO_COMPAT_FEATURE(fs
->super
,
2706 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
))
2707 rewrite_checksums
= 1;
2709 if (rewrite_checksums
)
2710 rewrite_metadata_checksums(fs
);
2712 if (mount_flags
& EXT2_MF_MOUNTED
) {
2713 fputs(_("The inode size may only be "
2714 "changed when the filesystem is "
2715 "unmounted.\n"), stderr
);
2719 if (fs
->super
->s_feature_incompat
&
2720 EXT4_FEATURE_INCOMPAT_FLEX_BG
) {
2721 fputs(_("Changing the inode size not supported for "
2722 "filesystems with the flex_bg\n"
2723 "feature enabled.\n"),
2729 * We want to update group descriptor also
2730 * with the new free inode count
2732 fs
->flags
&= ~EXT2_FLAG_SUPER_ONLY
;
2733 if (resize_inode(fs
, new_inode_size
) == 0) {
2734 printf(_("Setting inode size %lu\n"),
2737 printf("%s", _("Failed to change inode size\n"));
2746 sb
->s_raid_stride
= stride
;
2747 ext2fs_mark_super_dirty(fs
);
2748 printf(_("Setting stride size to %d\n"), stride
);
2750 if (stripe_width_set
) {
2751 sb
->s_raid_stripe_width
= stripe_width
;
2752 ext2fs_mark_super_dirty(fs
);
2753 printf(_("Setting stripe width to %d\n"), stripe_width
);
2755 if (ext_mount_opts
) {
2756 strncpy((char *)(fs
->super
->s_mount_opts
), ext_mount_opts
,
2757 sizeof(fs
->super
->s_mount_opts
));
2758 fs
->super
->s_mount_opts
[sizeof(fs
->super
->s_mount_opts
)-1] = 0;
2759 ext2fs_mark_super_dirty(fs
);
2760 printf(_("Setting extended default mount options to '%s'\n"),
2762 free(ext_mount_opts
);
2765 remove_error_table(&et_ext2_error_table
);
2769 ext2fs_mmp_stop(fs
);
2773 return (ext2fs_close(fs
) ? 1 : 0);