2:25 p.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/jth/linux.git btrfs-integrity
head: 178abf17d0aba23b45096ce15ff41bf56f01340b
commit: 2706df932e9847b14a2a0592fedad8b8c4a11077 [2/6] btrfs: add authentication support
config: h8300-allyesconfig (attached as .config)
compiler: h8300-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
#
https://git.kernel.org/pub/scm/linux/kernel/git/jth/linux.git/commit/?id=...
git remote add jth https://git.kernel.org/pub/scm/linux/kernel/git/jth/linux.git
git fetch --no-tags jth btrfs-integrity
git checkout 2706df932e9847b14a2a0592fedad8b8c4a11077
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=h8300
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
In file included from include/asm-generic/bug.h:5,
from arch/h8300/include/asm/bug.h:8,
from include/linux/bug.h:5,
from include/linux/thread_info.h:12,
from include/asm-generic/current.h:5,
from ./arch/h8300/include/generated/asm/current.h:1,
from include/linux/sched.h:12,
from include/linux/blkdev.h:5,
from fs/btrfs/super.c:6:
include/linux/scatterlist.h: In function 'sg_set_buf':
include/asm-generic/page.h:93:50: warning: ordered comparison of pointer with null
pointer [-Wextra]
93 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET)
&& \
| ^~
include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON'
143 | BUG_ON(!virt_addr_valid(buf));
| ^~~~~~
include/linux/scatterlist.h:143:10: note: in expansion of macro
'virt_addr_valid'
143 | BUG_ON(!virt_addr_valid(buf));
| ^~~~~~~~~~~~~~~
fs/btrfs/super.c: In function 'btrfs_parse_options':
> fs/btrfs/super.c:1043:1: warning: the frame size of 1120 bytes is
larger than 1024 bytes [-Wframe-larger-than=]
1043 | }
| ^
vim +1043 fs/btrfs/super.c
74ef00185eb8642 Qu Wenruo 2020-06-04 543
edf24abe51493cc Christoph Hellwig 2008-06-10 544 /*
edf24abe51493cc Christoph Hellwig 2008-06-10 545 * Regular mount options parser.
Everything that is needed only when
edf24abe51493cc Christoph Hellwig 2008-06-10 546 * reading in a new superblock is
parsed here.
49b25e0540904be Jeff Mahoney 2012-03-01 547 * XXX JDM: This needs to be
cleaned up for remount.
edf24abe51493cc Christoph Hellwig 2008-06-10 548 */
2ff7e61e0d30ff1 Jeff Mahoney 2016-06-22 549 int btrfs_parse_options(struct
btrfs_fs_info *info, char *options,
96da09192cda57a Qu Wenruo 2016-01-19 550 unsigned long new_flags)
95e0528919cb0c7 Chris Mason 2007-08-29 551 {
95e0528919cb0c7 Chris Mason 2007-08-29 552 substring_t args[MAX_OPT_ARGS];
e215772cd2abcf3 Misono, Tomohiro 2017-12-14 553 char *p, *num;
73bc187680f94be Josef Bacik 2011-10-03 554 u64 cache_gen;
4543df7ecc8ae49 Chris Mason 2008-06-11 555 int intarg;
a7a3f7cadd9bdee Sage Weil 2009-11-07 556 int ret = 0;
261507a02ccba9a Li Zefan 2010-12-17 557 char *compress_type;
261507a02ccba9a Li Zefan 2010-12-17 558 bool compress_force = false;
b7c47bbb2d18563 Tsutomu Itoh 2016-01-06 559 enum btrfs_compression_type
saved_compress_type;
27942c9971cc405 David Sterba 2020-07-23 560 int saved_compress_level;
b7c47bbb2d18563 Tsutomu Itoh 2016-01-06 561 bool saved_compress_force;
b7c47bbb2d18563 Tsutomu Itoh 2016-01-06 562 int no_compress = 0;
b6cda9bcb4df754 Chris Mason 2007-12-14 563
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 564 cache_gen =
btrfs_super_cache_generation(info->super_copy);
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 565 if (btrfs_fs_compat_ro(info,
FREE_SPACE_TREE))
70f6d82ec73c3ae Omar Sandoval 2015-09-29 566
btrfs_set_opt(info->mount_opt, FREE_SPACE_TREE);
70f6d82ec73c3ae Omar Sandoval 2015-09-29 567 else if (cache_gen)
73bc187680f94be Josef Bacik 2011-10-03 568
btrfs_set_opt(info->mount_opt, SPACE_CACHE);
73bc187680f94be Josef Bacik 2011-10-03 569
96da09192cda57a Qu Wenruo 2016-01-19 570 /*
96da09192cda57a Qu Wenruo 2016-01-19 571 * Even the options are empty, we
still need to do extra check
96da09192cda57a Qu Wenruo 2016-01-19 572 * against new flags
96da09192cda57a Qu Wenruo 2016-01-19 573 */
95e0528919cb0c7 Chris Mason 2007-08-29 574 if (!options)
96da09192cda57a Qu Wenruo 2016-01-19 575 goto check;
95e0528919cb0c7 Chris Mason 2007-08-29 576
95e0528919cb0c7 Chris Mason 2007-08-29 577 while ((p = strsep(&options,
",")) != NULL) {
95e0528919cb0c7 Chris Mason 2007-08-29 578 int token;
95e0528919cb0c7 Chris Mason 2007-08-29 579 if (!*p)
95e0528919cb0c7 Chris Mason 2007-08-29 580 continue;
95e0528919cb0c7 Chris Mason 2007-08-29 581
95e0528919cb0c7 Chris Mason 2007-08-29 582 token = match_token(p, tokens,
args);
95e0528919cb0c7 Chris Mason 2007-08-29 583 switch (token) {
dfe25020689bb2d Chris Mason 2008-05-13 584 case Opt_degraded:
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 585 btrfs_info(info, "allowing
degraded mounts");
dfe25020689bb2d Chris Mason 2008-05-13 586
btrfs_set_opt(info->mount_opt, DEGRADED);
dfe25020689bb2d Chris Mason 2008-05-13 587 break;
95e0528919cb0c7 Chris Mason 2007-08-29 588 case Opt_subvol:
37becec95ac31b2 Omar Sandoval 2018-05-21 589 case Opt_subvol_empty:
73f73415caddbc0 Josef Bacik 2009-12-04 590 case Opt_subvolid:
43e570b08a6c6b1 Christoph Hellwig 2008-06-10 591 case Opt_device:
edf24abe51493cc Christoph Hellwig 2008-06-10 592 /*
774f4f329c1e4ba Johannes Thumshirn 2020-05-14 593 * These are parsed by
btrfs_parse_subvol_options
774f4f329c1e4ba Johannes Thumshirn 2020-05-14 594 * and
btrfs_parse_early_options
774f4f329c1e4ba Johannes Thumshirn 2020-05-14 595 * and can be happily ignored
here.
edf24abe51493cc Christoph Hellwig 2008-06-10 596 */
95e0528919cb0c7 Chris Mason 2007-08-29 597 break;
b6cda9bcb4df754 Chris Mason 2007-12-14 598 case Opt_nodatasum:
2706df932e9847b Johannes Thumshirn 2020-05-14 599 if (btrfs_test_opt(info,
AUTH_KEY)) {
2706df932e9847b Johannes Thumshirn 2020-05-14 600 btrfs_info(info,
2706df932e9847b Johannes Thumshirn 2020-05-14 601 "nodatasum not
supported on an authnticated file-system");
2706df932e9847b Johannes Thumshirn 2020-05-14 602 break;
2706df932e9847b Johannes Thumshirn 2020-05-14 603 }
3cdde2240d4533f Jeff Mahoney 2016-06-09 604 btrfs_set_and_info(info,
NODATASUM,
078025347c8ed43 Qu Wenruo 2014-01-13 605 "setting
nodatasum");
be20aa9dbadc8c0 Chris Mason 2007-12-17 606 break;
d399167d88ea535 Qu Wenruo 2014-01-06 607 case Opt_datasum:
3cdde2240d4533f Jeff Mahoney 2016-06-09 608 if (btrfs_test_opt(info,
NODATASUM)) {
3cdde2240d4533f Jeff Mahoney 2016-06-09 609 if (btrfs_test_opt(info,
NODATACOW))
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 610 btrfs_info(info,
5d163e0e68ce743 Jeff Mahoney 2016-09-20 611 "setting datasum,
datacow enabled");
d399167d88ea535 Qu Wenruo 2014-01-06 612 else
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 613 btrfs_info(info,
"setting datasum");
078025347c8ed43 Qu Wenruo 2014-01-13 614 }
d399167d88ea535 Qu Wenruo 2014-01-06 615
btrfs_clear_opt(info->mount_opt, NODATACOW);
d399167d88ea535 Qu Wenruo 2014-01-06 616
btrfs_clear_opt(info->mount_opt, NODATASUM);
d399167d88ea535 Qu Wenruo 2014-01-06 617 break;
be20aa9dbadc8c0 Chris Mason 2007-12-17 618 case Opt_nodatacow:
2706df932e9847b Johannes Thumshirn 2020-05-14 619 if (btrfs_test_opt(info,
AUTH_KEY)) {
2706df932e9847b Johannes Thumshirn 2020-05-14 620 btrfs_info(info,
2706df932e9847b Johannes Thumshirn 2020-05-14 621 "nodatacow not
supported on an authnticated file-system");
2706df932e9847b Johannes Thumshirn 2020-05-14 622 break;
2706df932e9847b Johannes Thumshirn 2020-05-14 623 }
3cdde2240d4533f Jeff Mahoney 2016-06-09 624 if (!btrfs_test_opt(info,
NODATACOW)) {
3cdde2240d4533f Jeff Mahoney 2016-06-09 625 if (!btrfs_test_opt(info,
COMPRESS) ||
3cdde2240d4533f Jeff Mahoney 2016-06-09 626 !btrfs_test_opt(info,
FORCE_COMPRESS)) {
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 627 btrfs_info(info,
efe120a067c8674 Frank Holton 2013-12-20 628 "setting nodatacow,
compression disabled");
bedb2cca7252d08 Andrei Popa 2012-09-20 629 } else {
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 630 btrfs_info(info,
"setting nodatacow");
bedb2cca7252d08 Andrei Popa 2012-09-20 631 }
078025347c8ed43 Qu Wenruo 2014-01-13 632 }
bedb2cca7252d08 Andrei Popa 2012-09-20 633
btrfs_clear_opt(info->mount_opt, COMPRESS);
bedb2cca7252d08 Andrei Popa 2012-09-20 634
btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS);
be20aa9dbadc8c0 Chris Mason 2007-12-17 635
btrfs_set_opt(info->mount_opt, NODATACOW);
b6cda9bcb4df754 Chris Mason 2007-12-14 636
btrfs_set_opt(info->mount_opt, NODATASUM);
b6cda9bcb4df754 Chris Mason 2007-12-14 637 break;
a258af7a3e395a1 Qu Wenruo 2014-01-06 638 case Opt_datacow:
3cdde2240d4533f Jeff Mahoney 2016-06-09 639 btrfs_clear_and_info(info,
NODATACOW,
078025347c8ed43 Qu Wenruo 2014-01-13 640 "setting
datacow");
a258af7a3e395a1 Qu Wenruo 2014-01-06 641 break;
261507a02ccba9a Li Zefan 2010-12-17 642 case Opt_compress_force:
261507a02ccba9a Li Zefan 2010-12-17 643 case Opt_compress_force_type:
261507a02ccba9a Li Zefan 2010-12-17 644 compress_force = true;
c730ae0c6bb3125 Marcos Paulo de Souza 2020-06-16 645 fallthrough;
c8b978188c9a0fd Chris Mason 2008-10-29 646 case Opt_compress:
261507a02ccba9a Li Zefan 2010-12-17 647 case Opt_compress_type:
3cdde2240d4533f Jeff Mahoney 2016-06-09 648 saved_compress_type =
btrfs_test_opt(info,
3cdde2240d4533f Jeff Mahoney 2016-06-09 649 COMPRESS) ?
b7c47bbb2d18563 Tsutomu Itoh 2016-01-06 650 info->compress_type :
BTRFS_COMPRESS_NONE;
b7c47bbb2d18563 Tsutomu Itoh 2016-01-06 651 saved_compress_force =
3cdde2240d4533f Jeff Mahoney 2016-06-09 652 btrfs_test_opt(info,
FORCE_COMPRESS);
27942c9971cc405 David Sterba 2020-07-23 653 saved_compress_level =
info->compress_level;
261507a02ccba9a Li Zefan 2010-12-17 654 if (token == Opt_compress ||
261507a02ccba9a Li Zefan 2010-12-17 655 token == Opt_compress_force
||
a7164fa4e055daf David Sterba 2017-07-17 656 strncmp(args[0].from,
"zlib", 4) == 0) {
261507a02ccba9a Li Zefan 2010-12-17 657 compress_type =
"zlib";
eae8d82529dd982 Qu Wenruo 2017-11-06 658
261507a02ccba9a Li Zefan 2010-12-17 659 info->compress_type =
BTRFS_COMPRESS_ZLIB;
eae8d82529dd982 Qu Wenruo 2017-11-06 660 info->compress_level =
BTRFS_ZLIB_DEFAULT_LEVEL;
eae8d82529dd982 Qu Wenruo 2017-11-06 661 /*
eae8d82529dd982 Qu Wenruo 2017-11-06 662 * args[0] contains
uninitialized data since
eae8d82529dd982 Qu Wenruo 2017-11-06 663 * for these tokens we
don't expect any
eae8d82529dd982 Qu Wenruo 2017-11-06 664 * parameter.
eae8d82529dd982 Qu Wenruo 2017-11-06 665 */
eae8d82529dd982 Qu Wenruo 2017-11-06 666 if (token != Opt_compress
&&
eae8d82529dd982 Qu Wenruo 2017-11-06 667 token !=
Opt_compress_force)
f51d2b59120ff36 David Sterba 2017-09-15 668 info->compress_level =
d0ab62ce2ded362 Dennis Zhou 2019-02-04 669 btrfs_compress_str2level(
d0ab62ce2ded362 Dennis Zhou 2019-02-04 670 BTRFS_COMPRESS_ZLIB,
d0ab62ce2ded362 Dennis Zhou 2019-02-04 671 args[0].from + 4);
063849eafda03ed Arnd Hannemann 2012-04-16 672
btrfs_set_opt(info->mount_opt, COMPRESS);
bedb2cca7252d08 Andrei Popa 2012-09-20 673
btrfs_clear_opt(info->mount_opt, NODATACOW);
bedb2cca7252d08 Andrei Popa 2012-09-20 674
btrfs_clear_opt(info->mount_opt, NODATASUM);
b7c47bbb2d18563 Tsutomu Itoh 2016-01-06 675 no_compress = 0;
a7164fa4e055daf David Sterba 2017-07-17 676 } else if
(strncmp(args[0].from, "lzo", 3) == 0) {
a6fa6fae40ec336 Li Zefan 2010-10-25 677 compress_type =
"lzo";
a6fa6fae40ec336 Li Zefan 2010-10-25 678 info->compress_type =
BTRFS_COMPRESS_LZO;
282dd7d77184446 Marcos Paulo de Souza 2020-08-03 679 info->compress_level = 0;
063849eafda03ed Arnd Hannemann 2012-04-16 680
btrfs_set_opt(info->mount_opt, COMPRESS);
bedb2cca7252d08 Andrei Popa 2012-09-20 681
btrfs_clear_opt(info->mount_opt, NODATACOW);
bedb2cca7252d08 Andrei Popa 2012-09-20 682
btrfs_clear_opt(info->mount_opt, NODATASUM);
2b0ce2c2909368d Mitch Harder 2012-07-24 683 btrfs_set_fs_incompat(info,
COMPRESS_LZO);
b7c47bbb2d18563 Tsutomu Itoh 2016-01-06 684 no_compress = 0;
3f93aef535c8ea0 Dennis Zhou 2019-02-04 685 } else if
(strncmp(args[0].from, "zstd", 4) == 0) {
5c1aab1dd5445ed Nick Terrell 2017-08-09 686 compress_type =
"zstd";
5c1aab1dd5445ed Nick Terrell 2017-08-09 687 info->compress_type =
BTRFS_COMPRESS_ZSTD;
3f93aef535c8ea0 Dennis Zhou 2019-02-04 688 info->compress_level =
3f93aef535c8ea0 Dennis Zhou 2019-02-04 689 btrfs_compress_str2level(
3f93aef535c8ea0 Dennis Zhou 2019-02-04 690 BTRFS_COMPRESS_ZSTD,
3f93aef535c8ea0 Dennis Zhou 2019-02-04 691 args[0].from + 4);
5c1aab1dd5445ed Nick Terrell 2017-08-09 692
btrfs_set_opt(info->mount_opt, COMPRESS);
5c1aab1dd5445ed Nick Terrell 2017-08-09 693
btrfs_clear_opt(info->mount_opt, NODATACOW);
5c1aab1dd5445ed Nick Terrell 2017-08-09 694
btrfs_clear_opt(info->mount_opt, NODATASUM);
5c1aab1dd5445ed Nick Terrell 2017-08-09 695 btrfs_set_fs_incompat(info,
COMPRESS_ZSTD);
5c1aab1dd5445ed Nick Terrell 2017-08-09 696 no_compress = 0;
063849eafda03ed Arnd Hannemann 2012-04-16 697 } else if
(strncmp(args[0].from, "no", 2) == 0) {
063849eafda03ed Arnd Hannemann 2012-04-16 698 compress_type =
"no";
27942c9971cc405 David Sterba 2020-07-23 699 info->compress_level = 0;
27942c9971cc405 David Sterba 2020-07-23 700 info->compress_type = 0;
063849eafda03ed Arnd Hannemann 2012-04-16 701
btrfs_clear_opt(info->mount_opt, COMPRESS);
063849eafda03ed Arnd Hannemann 2012-04-16 702
btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS);
063849eafda03ed Arnd Hannemann 2012-04-16 703 compress_force = false;
b7c47bbb2d18563 Tsutomu Itoh 2016-01-06 704 no_compress++;
261507a02ccba9a Li Zefan 2010-12-17 705 } else {
261507a02ccba9a Li Zefan 2010-12-17 706 ret = -EINVAL;
261507a02ccba9a Li Zefan 2010-12-17 707 goto out;
261507a02ccba9a Li Zefan 2010-12-17 708 }
261507a02ccba9a Li Zefan 2010-12-17 709
261507a02ccba9a Li Zefan 2010-12-17 710 if (compress_force) {
b7c47bbb2d18563 Tsutomu Itoh 2016-01-06 711
btrfs_set_opt(info->mount_opt, FORCE_COMPRESS);
143f36361855847 David Sterba 2014-07-29 712 } else {
4027e0f4c4b2df2 Wang Shilong 2014-06-30 713 /*
4027e0f4c4b2df2 Wang Shilong 2014-06-30 714 * If we remount from
compress-force=xxx to
4027e0f4c4b2df2 Wang Shilong 2014-06-30 715 * compress=xxx, we need clear
FORCE_COMPRESS
4027e0f4c4b2df2 Wang Shilong 2014-06-30 716 * flag, otherwise, there is
no way for users
4027e0f4c4b2df2 Wang Shilong 2014-06-30 717 * to disable forcible
compression separately.
4027e0f4c4b2df2 Wang Shilong 2014-06-30 718 */
4027e0f4c4b2df2 Wang Shilong 2014-06-30 719
btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS);
a7e252af5a819eb Miao Xie 2013-11-22 720 }
27942c9971cc405 David Sterba 2020-07-23 721 if (no_compress == 1) {
27942c9971cc405 David Sterba 2020-07-23 722 btrfs_info(info, "use no
compression");
27942c9971cc405 David Sterba 2020-07-23 723 } else if
((info->compress_type != saved_compress_type) ||
27942c9971cc405 David Sterba 2020-07-23 724 (compress_force !=
saved_compress_force) ||
27942c9971cc405 David Sterba 2020-07-23 725 (info->compress_level !=
saved_compress_level)) {
f51d2b59120ff36 David Sterba 2017-09-15 726 btrfs_info(info, "%s %s
compression, level %d",
b7c47bbb2d18563 Tsutomu Itoh 2016-01-06 727 (compress_force) ?
"force" : "use",
f51d2b59120ff36 David Sterba 2017-09-15 728 compress_type,
info->compress_level);
b7c47bbb2d18563 Tsutomu Itoh 2016-01-06 729 }
b7c47bbb2d18563 Tsutomu Itoh 2016-01-06 730 compress_force = false;
a555f810af6d63e Chris Mason 2010-01-28 731 break;
e18e4809b10e6c9 Chris Mason 2008-01-18 732 case Opt_ssd:
3cdde2240d4533f Jeff Mahoney 2016-06-09 733 btrfs_set_and_info(info, SSD,
583b723151794e2 Hans van Kranenburg 2017-07-28 734 "enabling ssd
optimizations");
951e7966398b0fd Adam Borowski 2017-03-31 735
btrfs_clear_opt(info->mount_opt, NOSSD);
e18e4809b10e6c9 Chris Mason 2008-01-18 736 break;
451d7585a8bb1b9 Chris Mason 2009-06-09 737 case Opt_ssd_spread:
583b723151794e2 Hans van Kranenburg 2017-07-28 738 btrfs_set_and_info(info, SSD,
583b723151794e2 Hans van Kranenburg 2017-07-28 739 "enabling ssd
optimizations");
3cdde2240d4533f Jeff Mahoney 2016-06-09 740 btrfs_set_and_info(info,
SSD_SPREAD,
583b723151794e2 Hans van Kranenburg 2017-07-28 741 "using spread ssd
allocation scheme");
951e7966398b0fd Adam Borowski 2017-03-31 742
btrfs_clear_opt(info->mount_opt, NOSSD);
451d7585a8bb1b9 Chris Mason 2009-06-09 743 break;
3b30c22f64a6bb2 Chris Mason 2009-06-09 744 case Opt_nossd:
583b723151794e2 Hans van Kranenburg 2017-07-28 745
btrfs_set_opt(info->mount_opt, NOSSD);
583b723151794e2 Hans van Kranenburg 2017-07-28 746 btrfs_clear_and_info(info,
SSD,
583b723151794e2 Hans van Kranenburg 2017-07-28 747 "not using ssd
optimizations");
c730ae0c6bb3125 Marcos Paulo de Souza 2020-06-16 748 fallthrough;
62b8e077317971b Howard McLauchlan 2018-03-08 749 case Opt_nossd_spread:
583b723151794e2 Hans van Kranenburg 2017-07-28 750 btrfs_clear_and_info(info,
SSD_SPREAD,
583b723151794e2 Hans van Kranenburg 2017-07-28 751 "not using spread
ssd allocation scheme");
3b30c22f64a6bb2 Chris Mason 2009-06-09 752 break;
842bef5891aaf13 Qu Wenruo 2014-01-06 753 case Opt_barrier:
3cdde2240d4533f Jeff Mahoney 2016-06-09 754 btrfs_clear_and_info(info,
NOBARRIER,
078025347c8ed43 Qu Wenruo 2014-01-13 755 "turning on
barriers");
842bef5891aaf13 Qu Wenruo 2014-01-06 756 break;
21ad10cf3e9c1ef Chris Mason 2008-01-09 757 case Opt_nobarrier:
3cdde2240d4533f Jeff Mahoney 2016-06-09 758 btrfs_set_and_info(info,
NOBARRIER,
078025347c8ed43 Qu Wenruo 2014-01-13 759 "turning off
barriers");
21ad10cf3e9c1ef Chris Mason 2008-01-09 760 break;
4543df7ecc8ae49 Chris Mason 2008-06-11 761 case Opt_thread_pool:
2c334e87f31783c Wang Shilong 2013-07-24 762 ret = match_int(&args[0],
&intarg);
2c334e87f31783c Wang Shilong 2013-07-24 763 if (ret) {
2c334e87f31783c Wang Shilong 2013-07-24 764 goto out;
f7b885befd05fa4 Anand Jain 2018-02-13 765 } else if (intarg == 0) {
2c334e87f31783c Wang Shilong 2013-07-24 766 ret = -EINVAL;
2c334e87f31783c Wang Shilong 2013-07-24 767 goto out;
2c334e87f31783c Wang Shilong 2013-07-24 768 }
f7b885befd05fa4 Anand Jain 2018-02-13 769 info->thread_pool_size =
intarg;
4543df7ecc8ae49 Chris Mason 2008-06-11 770 break;
6f568d35a045dbb Chris Mason 2008-01-29 771 case Opt_max_inline:
edf24abe51493cc Christoph Hellwig 2008-06-10 772 num =
match_strdup(&args[0]);
6f568d35a045dbb Chris Mason 2008-01-29 773 if (num) {
91748467a5c5884 Akinobu Mita 2010-02-28 774 info->max_inline =
memparse(num, NULL);
6f568d35a045dbb Chris Mason 2008-01-29 775 kfree(num);
6f568d35a045dbb Chris Mason 2008-01-29 776
15ada040d7cd68d Chris Mason 2008-06-11 777 if (info->max_inline) {
feb5f96589302b3 Mitch Harder 2014-02-13 778 info->max_inline =
min_t(u64,
15ada040d7cd68d Chris Mason 2008-06-11 779 info->max_inline,
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 780 info->sectorsize);
15ada040d7cd68d Chris Mason 2008-06-11 781 }
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 782 btrfs_info(info,
"max_inline at %llu",
c1c9ff7c94e83fa Geert Uytterhoeven 2013-08-20 783 info->max_inline);
2c334e87f31783c Wang Shilong 2013-07-24 784 } else {
2c334e87f31783c Wang Shilong 2013-07-24 785 ret = -ENOMEM;
2c334e87f31783c Wang Shilong 2013-07-24 786 goto out;
6f568d35a045dbb Chris Mason 2008-01-29 787 }
6f568d35a045dbb Chris Mason 2008-01-29 788 break;
bd0330ad2174d1a Qu Wenruo 2014-01-06 789 case Opt_acl:
45ff35d6b9f301c Guangliang Zhao 2014-05-12 790 #ifdef CONFIG_BTRFS_FS_POSIX_ACL
1751e8a6cb935e5 Linus Torvalds 2017-11-27 791 info->sb->s_flags |=
SB_POSIXACL;
bd0330ad2174d1a Qu Wenruo 2014-01-06 792 break;
45ff35d6b9f301c Guangliang Zhao 2014-05-12 793 #else
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 794 btrfs_err(info, "support
for ACL not compiled in!");
45ff35d6b9f301c Guangliang Zhao 2014-05-12 795 ret = -EINVAL;
45ff35d6b9f301c Guangliang Zhao 2014-05-12 796 goto out;
45ff35d6b9f301c Guangliang Zhao 2014-05-12 797 #endif
33268eaf0b3db5e Josef Bacik 2008-07-24 798 case Opt_noacl:
1751e8a6cb935e5 Linus Torvalds 2017-11-27 799 info->sb->s_flags &=
~SB_POSIXACL;
33268eaf0b3db5e Josef Bacik 2008-07-24 800 break;
3a5e14048a0a812 Sage Weil 2009-04-02 801 case Opt_notreelog:
3cdde2240d4533f Jeff Mahoney 2016-06-09 802 btrfs_set_and_info(info,
NOTREELOG,
078025347c8ed43 Qu Wenruo 2014-01-13 803 "disabling tree
log");
a88998f291fc707 Qu Wenruo 2014-01-06 804 break;
a88998f291fc707 Qu Wenruo 2014-01-06 805 case Opt_treelog:
3cdde2240d4533f Jeff Mahoney 2016-06-09 806 btrfs_clear_and_info(info,
NOTREELOG,
078025347c8ed43 Qu Wenruo 2014-01-13 807 "enabling tree
log");
3a5e14048a0a812 Sage Weil 2009-04-02 808 break;
fed8f166ebf3afb Qu Wenruo 2016-01-19 809 case Opt_norecovery:
96da09192cda57a Qu Wenruo 2016-01-19 810 case Opt_nologreplay:
74ef00185eb8642 Qu Wenruo 2020-06-04 811 btrfs_warn(info,
74ef00185eb8642 Qu Wenruo 2020-06-04 812 "'nologreplay' is
deprecated, use 'rescue=nologreplay' instead");
3cdde2240d4533f Jeff Mahoney 2016-06-09 813 btrfs_set_and_info(info,
NOLOGREPLAY,
96da09192cda57a Qu Wenruo 2016-01-19 814 "disabling log replay
at mount time");
96da09192cda57a Qu Wenruo 2016-01-19 815 break;
dccae9999508964 Sage Weil 2009-04-02 816 case Opt_flushoncommit:
3cdde2240d4533f Jeff Mahoney 2016-06-09 817 btrfs_set_and_info(info,
FLUSHONCOMMIT,
078025347c8ed43 Qu Wenruo 2014-01-13 818 "turning on
flush-on-commit");
dccae9999508964 Sage Weil 2009-04-02 819 break;
2c9ee85671f66cd Qu Wenruo 2014-01-06 820 case Opt_noflushoncommit:
3cdde2240d4533f Jeff Mahoney 2016-06-09 821 btrfs_clear_and_info(info,
FLUSHONCOMMIT,
078025347c8ed43 Qu Wenruo 2014-01-13 822 "turning off
flush-on-commit");
2c9ee85671f66cd Qu Wenruo 2014-01-06 823 break;
97e728d4353f38c Josef Bacik 2009-04-21 824 case Opt_ratio:
2c334e87f31783c Wang Shilong 2013-07-24 825 ret = match_int(&args[0],
&intarg);
764cb8b43d4d804 Anand Jain 2018-02-13 826 if (ret)
2c334e87f31783c Wang Shilong 2013-07-24 827 goto out;
97e728d4353f38c Josef Bacik 2009-04-21 828 info->metadata_ratio =
intarg;
764cb8b43d4d804 Anand Jain 2018-02-13 829 btrfs_info(info, "metadata
ratio %u",
97e728d4353f38c Josef Bacik 2009-04-21 830 info->metadata_ratio);
97e728d4353f38c Josef Bacik 2009-04-21 831 break;
e244a0aeb6a599c Christoph Hellwig 2009-10-14 832 case Opt_discard:
b0643e59cfa609c Dennis Zhou 2019-12-13 833 case Opt_discard_mode:
b0643e59cfa609c Dennis Zhou 2019-12-13 834 if (token == Opt_discard ||
b0643e59cfa609c Dennis Zhou 2019-12-13 835 strcmp(args[0].from,
"sync") == 0) {
b0643e59cfa609c Dennis Zhou 2019-12-13 836
btrfs_clear_opt(info->mount_opt, DISCARD_ASYNC);
46b27f5059e6ce7 Dennis Zhou 2019-12-13 837 btrfs_set_and_info(info,
DISCARD_SYNC,
46b27f5059e6ce7 Dennis Zhou 2019-12-13 838 "turning on sync
discard");
b0643e59cfa609c Dennis Zhou 2019-12-13 839 } else if (strcmp(args[0].from,
"async") == 0) {
b0643e59cfa609c Dennis Zhou 2019-12-13 840
btrfs_clear_opt(info->mount_opt, DISCARD_SYNC);
b0643e59cfa609c Dennis Zhou 2019-12-13 841 btrfs_set_and_info(info,
DISCARD_ASYNC,
b0643e59cfa609c Dennis Zhou 2019-12-13 842 "turning on async
discard");
b0643e59cfa609c Dennis Zhou 2019-12-13 843 } else {
b0643e59cfa609c Dennis Zhou 2019-12-13 844 ret = -EINVAL;
b0643e59cfa609c Dennis Zhou 2019-12-13 845 goto out;
b0643e59cfa609c Dennis Zhou 2019-12-13 846 }
e244a0aeb6a599c Christoph Hellwig 2009-10-14 847 break;
e07a2ade4426a2c Qu Wenruo 2014-01-06 848 case Opt_nodiscard:
46b27f5059e6ce7 Dennis Zhou 2019-12-13 849 btrfs_clear_and_info(info,
DISCARD_SYNC,
078025347c8ed43 Qu Wenruo 2014-01-13 850 "turning off
discard");
b0643e59cfa609c Dennis Zhou 2019-12-13 851 btrfs_clear_and_info(info,
DISCARD_ASYNC,
b0643e59cfa609c Dennis Zhou 2019-12-13 852 "turning off async
discard");
e07a2ade4426a2c Qu Wenruo 2014-01-06 853 break;
0af3d00bad38d3b Josef Bacik 2010-06-21 854 case Opt_space_cache:
70f6d82ec73c3ae Omar Sandoval 2015-09-29 855 case Opt_space_cache_version:
70f6d82ec73c3ae Omar Sandoval 2015-09-29 856 if (token == Opt_space_cache
||
70f6d82ec73c3ae Omar Sandoval 2015-09-29 857 strcmp(args[0].from,
"v1") == 0) {
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 858
btrfs_clear_opt(info->mount_opt,
70f6d82ec73c3ae Omar Sandoval 2015-09-29 859 FREE_SPACE_TREE);
3cdde2240d4533f Jeff Mahoney 2016-06-09 860 btrfs_set_and_info(info,
SPACE_CACHE,
078025347c8ed43 Qu Wenruo 2014-01-13 861 "enabling disk space
caching");
70f6d82ec73c3ae Omar Sandoval 2015-09-29 862 } else if (strcmp(args[0].from,
"v2") == 0) {
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 863
btrfs_clear_opt(info->mount_opt,
70f6d82ec73c3ae Omar Sandoval 2015-09-29 864 SPACE_CACHE);
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 865 btrfs_set_and_info(info,
FREE_SPACE_TREE,
70f6d82ec73c3ae Omar Sandoval 2015-09-29 866 "enabling free space
tree");
70f6d82ec73c3ae Omar Sandoval 2015-09-29 867 } else {
70f6d82ec73c3ae Omar Sandoval 2015-09-29 868 ret = -EINVAL;
70f6d82ec73c3ae Omar Sandoval 2015-09-29 869 goto out;
70f6d82ec73c3ae Omar Sandoval 2015-09-29 870 }
0de90876c6cb774 Josef Bacik 2010-11-19 871 break;
f420ee1e923b931 Stefan Behrens 2013-08-15 872 case Opt_rescan_uuid_tree:
f420ee1e923b931 Stefan Behrens 2013-08-15 873
btrfs_set_opt(info->mount_opt, RESCAN_UUID_TREE);
f420ee1e923b931 Stefan Behrens 2013-08-15 874 break;
73bc187680f94be Josef Bacik 2011-10-03 875 case Opt_no_space_cache:
3cdde2240d4533f Jeff Mahoney 2016-06-09 876 if (btrfs_test_opt(info,
SPACE_CACHE)) {
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 877 btrfs_clear_and_info(info,
SPACE_CACHE,
078025347c8ed43 Qu Wenruo 2014-01-13 878 "disabling disk
space caching");
70f6d82ec73c3ae Omar Sandoval 2015-09-29 879 }
3cdde2240d4533f Jeff Mahoney 2016-06-09 880 if (btrfs_test_opt(info,
FREE_SPACE_TREE)) {
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 881 btrfs_clear_and_info(info,
FREE_SPACE_TREE,
70f6d82ec73c3ae Omar Sandoval 2015-09-29 882 "disabling free
space tree");
70f6d82ec73c3ae Omar Sandoval 2015-09-29 883 }
73bc187680f94be Josef Bacik 2011-10-03 884 break;
4b9465cb9e38591 Chris Mason 2011-06-03 885 case Opt_inode_cache:
b547a88ea5776a8 David Sterba 2020-06-18 886 btrfs_warn(info,
b547a88ea5776a8 David Sterba 2020-06-18 887 "the 'inode_cache'
option is deprecated and will have no effect from 5.11");
7e1876aca815029 David Sterba 2014-02-05 888
btrfs_set_pending_and_info(info, INODE_MAP_CACHE,
078025347c8ed43 Qu Wenruo 2014-01-13 889 "enabling inode map
caching");
3818aea27542323 Qu Wenruo 2014-01-13 890 break;
3818aea27542323 Qu Wenruo 2014-01-13 891 case Opt_noinode_cache:
7e1876aca815029 David Sterba 2014-02-05 892
btrfs_clear_pending_and_info(info, INODE_MAP_CACHE,
078025347c8ed43 Qu Wenruo 2014-01-13 893 "disabling inode
map caching");
4b9465cb9e38591 Chris Mason 2011-06-03 894 break;
88c2ba3b069f1e0 Josef Bacik 2010-09-21 895 case Opt_clear_cache:
3cdde2240d4533f Jeff Mahoney 2016-06-09 896 btrfs_set_and_info(info,
CLEAR_CACHE,
078025347c8ed43 Qu Wenruo 2014-01-13 897 "force clearing of
disk cache");
0af3d00bad38d3b Josef Bacik 2010-06-21 898 break;
4260f7c7516f4c2 Sage Weil 2010-10-29 899 case
Opt_user_subvol_rm_allowed:
4260f7c7516f4c2 Sage Weil 2010-10-29 900
btrfs_set_opt(info->mount_opt, USER_SUBVOL_RM_ALLOWED);
4260f7c7516f4c2 Sage Weil 2010-10-29 901 break;
91435650c233b93 Chris Mason 2011-02-16 902 case Opt_enospc_debug:
91435650c233b93 Chris Mason 2011-02-16 903
btrfs_set_opt(info->mount_opt, ENOSPC_DEBUG);
91435650c233b93 Chris Mason 2011-02-16 904 break;
530362934332e4e Qu Wenruo 2014-01-06 905 case Opt_noenospc_debug:
530362934332e4e Qu Wenruo 2014-01-06 906
btrfs_clear_opt(info->mount_opt, ENOSPC_DEBUG);
530362934332e4e Qu Wenruo 2014-01-06 907 break;
4cb5300bc839b8a Chris Mason 2011-05-24 908 case Opt_defrag:
3cdde2240d4533f Jeff Mahoney 2016-06-09 909 btrfs_set_and_info(info,
AUTO_DEFRAG,
078025347c8ed43 Qu Wenruo 2014-01-13 910 "enabling auto
defrag");
4cb5300bc839b8a Chris Mason 2011-05-24 911 break;
fc0ca9af180b91a Qu Wenruo 2014-01-06 912 case Opt_nodefrag:
3cdde2240d4533f Jeff Mahoney 2016-06-09 913 btrfs_clear_and_info(info,
AUTO_DEFRAG,
078025347c8ed43 Qu Wenruo 2014-01-13 914 "disabling auto
defrag");
fc0ca9af180b91a Qu Wenruo 2014-01-06 915 break;
af31f5e5b84b5bf Chris Mason 2011-11-03 916 case Opt_recovery:
8dcddfa048de637 Qu Wenruo 2016-01-19 917 case Opt_usebackuproot:
74ef00185eb8642 Qu Wenruo 2020-06-04 918 btrfs_warn(info,
74ef00185eb8642 Qu Wenruo 2020-06-04 919 "'%s' is
deprecated, use 'rescue=usebackuproot' instead",
74ef00185eb8642 Qu Wenruo 2020-06-04 920 token == Opt_recovery ?
"recovery" :
74ef00185eb8642 Qu Wenruo 2020-06-04 921
"usebackuproot");
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 922 btrfs_info(info,
8dcddfa048de637 Qu Wenruo 2016-01-19 923 "trying to use backup
root at mount time");
8dcddfa048de637 Qu Wenruo 2016-01-19 924
btrfs_set_opt(info->mount_opt, USEBACKUPROOT);
af31f5e5b84b5bf Chris Mason 2011-11-03 925 break;
9555c6c180600b4 Ilya Dryomov 2012-01-16 926 case Opt_skip_balance:
9555c6c180600b4 Ilya Dryomov 2012-01-16 927
btrfs_set_opt(info->mount_opt, SKIP_BALANCE);
9555c6c180600b4 Ilya Dryomov 2012-01-16 928 break;
21adbd5cbb5344a Stefan Behrens 2011-11-09 929 #ifdef
CONFIG_BTRFS_FS_CHECK_INTEGRITY
21adbd5cbb5344a Stefan Behrens 2011-11-09 930 case
Opt_check_integrity_including_extent_data:
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 931 btrfs_info(info,
efe120a067c8674 Frank Holton 2013-12-20 932 "enabling check
integrity including extent data");
21adbd5cbb5344a Stefan Behrens 2011-11-09 933
btrfs_set_opt(info->mount_opt,
21adbd5cbb5344a Stefan Behrens 2011-11-09 934
CHECK_INTEGRITY_INCLUDING_EXTENT_DATA);
21adbd5cbb5344a Stefan Behrens 2011-11-09 935
btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY);
21adbd5cbb5344a Stefan Behrens 2011-11-09 936 break;
21adbd5cbb5344a Stefan Behrens 2011-11-09 937 case Opt_check_integrity:
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 938 btrfs_info(info, "enabling
check integrity");
21adbd5cbb5344a Stefan Behrens 2011-11-09 939
btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY);
21adbd5cbb5344a Stefan Behrens 2011-11-09 940 break;
21adbd5cbb5344a Stefan Behrens 2011-11-09 941 case
Opt_check_integrity_print_mask:
2c334e87f31783c Wang Shilong 2013-07-24 942 ret = match_int(&args[0],
&intarg);
02453bdeb02482c Anand Jain 2018-02-13 943 if (ret)
2c334e87f31783c Wang Shilong 2013-07-24 944 goto out;
21adbd5cbb5344a Stefan Behrens 2011-11-09 945
info->check_integrity_print_mask = intarg;
02453bdeb02482c Anand Jain 2018-02-13 946 btrfs_info(info,
"check_integrity_print_mask 0x%x",
21adbd5cbb5344a Stefan Behrens 2011-11-09 947
info->check_integrity_print_mask);
21adbd5cbb5344a Stefan Behrens 2011-11-09 948 break;
21adbd5cbb5344a Stefan Behrens 2011-11-09 949 #else
21adbd5cbb5344a Stefan Behrens 2011-11-09 950 case
Opt_check_integrity_including_extent_data:
21adbd5cbb5344a Stefan Behrens 2011-11-09 951 case Opt_check_integrity:
21adbd5cbb5344a Stefan Behrens 2011-11-09 952 case
Opt_check_integrity_print_mask:
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 953 btrfs_err(info,
efe120a067c8674 Frank Holton 2013-12-20 954 "support for
check_integrity* not compiled in!");
21adbd5cbb5344a Stefan Behrens 2011-11-09 955 ret = -EINVAL;
21adbd5cbb5344a Stefan Behrens 2011-11-09 956 goto out;
21adbd5cbb5344a Stefan Behrens 2011-11-09 957 #endif
8c3429300181be4 Jeff Mahoney 2011-10-03 958 case Opt_fatal_errors:
8c3429300181be4 Jeff Mahoney 2011-10-03 959 if (strcmp(args[0].from,
"panic") == 0)
8c3429300181be4 Jeff Mahoney 2011-10-03 960
btrfs_set_opt(info->mount_opt,
8c3429300181be4 Jeff Mahoney 2011-10-03 961 PANIC_ON_FATAL_ERROR);
8c3429300181be4 Jeff Mahoney 2011-10-03 962 else if (strcmp(args[0].from,
"bug") == 0)
8c3429300181be4 Jeff Mahoney 2011-10-03 963
btrfs_clear_opt(info->mount_opt,
8c3429300181be4 Jeff Mahoney 2011-10-03 964 PANIC_ON_FATAL_ERROR);
8c3429300181be4 Jeff Mahoney 2011-10-03 965 else {
8c3429300181be4 Jeff Mahoney 2011-10-03 966 ret = -EINVAL;
8c3429300181be4 Jeff Mahoney 2011-10-03 967 goto out;
8c3429300181be4 Jeff Mahoney 2011-10-03 968 }
8c3429300181be4 Jeff Mahoney 2011-10-03 969 break;
8b87dc17fbc7443 David Sterba 2013-08-01 970 case Opt_commit_interval:
8b87dc17fbc7443 David Sterba 2013-08-01 971 intarg = 0;
8b87dc17fbc7443 David Sterba 2013-08-01 972 ret = match_int(&args[0],
&intarg);
d3740608646f72f Anand Jain 2018-02-13 973 if (ret)
8b87dc17fbc7443 David Sterba 2013-08-01 974 goto out;
d3740608646f72f Anand Jain 2018-02-13 975 if (intarg == 0) {
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 976 btrfs_info(info,
d3740608646f72f Anand Jain 2018-02-13 977 "using default commit
interval %us",
8b87dc17fbc7443 David Sterba 2013-08-01 978
BTRFS_DEFAULT_COMMIT_INTERVAL);
d3740608646f72f Anand Jain 2018-02-13 979 intarg =
BTRFS_DEFAULT_COMMIT_INTERVAL;
d3740608646f72f Anand Jain 2018-02-13 980 } else if (intarg > 300) {
d3740608646f72f Anand Jain 2018-02-13 981 btrfs_warn(info,
"excessive commit interval %d",
d3740608646f72f Anand Jain 2018-02-13 982 intarg);
8b87dc17fbc7443 David Sterba 2013-08-01 983 }
d3740608646f72f Anand Jain 2018-02-13 984 info->commit_interval =
intarg;
8b87dc17fbc7443 David Sterba 2013-08-01 985 break;
74ef00185eb8642 Qu Wenruo 2020-06-04 986 case Opt_rescue:
74ef00185eb8642 Qu Wenruo 2020-06-04 987 ret =
parse_rescue_options(info, args[0].from);
74ef00185eb8642 Qu Wenruo 2020-06-04 988 if (ret < 0)
74ef00185eb8642 Qu Wenruo 2020-06-04 989 goto out;
74ef00185eb8642 Qu Wenruo 2020-06-04 990 break;
d0bd456074dca08 Josef Bacik 2015-09-23 991 #ifdef CONFIG_BTRFS_DEBUG
d0bd456074dca08 Josef Bacik 2015-09-23 992 case Opt_fragment_all:
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 993 btrfs_info(info,
"fragmenting all space");
d0bd456074dca08 Josef Bacik 2015-09-23 994
btrfs_set_opt(info->mount_opt, FRAGMENT_DATA);
d0bd456074dca08 Josef Bacik 2015-09-23 995
btrfs_set_opt(info->mount_opt, FRAGMENT_METADATA);
d0bd456074dca08 Josef Bacik 2015-09-23 996 break;
d0bd456074dca08 Josef Bacik 2015-09-23 997 case Opt_fragment_metadata:
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 998 btrfs_info(info,
"fragmenting metadata");
d0bd456074dca08 Josef Bacik 2015-09-23 999
btrfs_set_opt(info->mount_opt,
d0bd456074dca08 Josef Bacik 2015-09-23 1000 FRAGMENT_METADATA);
d0bd456074dca08 Josef Bacik 2015-09-23 1001 break;
d0bd456074dca08 Josef Bacik 2015-09-23 1002 case Opt_fragment_data:
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 1003 btrfs_info(info,
"fragmenting data");
d0bd456074dca08 Josef Bacik 2015-09-23 1004
btrfs_set_opt(info->mount_opt, FRAGMENT_DATA);
d0bd456074dca08 Josef Bacik 2015-09-23 1005 break;
fb592373cddeb4e Josef Bacik 2017-09-29 1006 #endif
fb592373cddeb4e Josef Bacik 2017-09-29 1007 #ifdef CONFIG_BTRFS_FS_REF_VERIFY
fb592373cddeb4e Josef Bacik 2017-09-29 1008 case Opt_ref_verify:
fb592373cddeb4e Josef Bacik 2017-09-29 1009 btrfs_info(info, "doing
ref verification");
fb592373cddeb4e Josef Bacik 2017-09-29 1010
btrfs_set_opt(info->mount_opt, REF_VERIFY);
fb592373cddeb4e Josef Bacik 2017-09-29 1011 break;
d0bd456074dca08 Josef Bacik 2015-09-23 1012 #endif
a7a3f7cadd9bdee Sage Weil 2009-11-07 1013 case Opt_err:
7e8f19e50e3ccf0 David Sterba 2019-11-27 1014 btrfs_err(info,
"unrecognized mount option '%s'", p);
a7a3f7cadd9bdee Sage Weil 2009-11-07 1015 ret = -EINVAL;
a7a3f7cadd9bdee Sage Weil 2009-11-07 1016 goto out;
95e0528919cb0c7 Chris Mason 2007-08-29 1017 default:
be20aa9dbadc8c0 Chris Mason 2007-12-17 1018 break;
95e0528919cb0c7 Chris Mason 2007-08-29 1019 }
95e0528919cb0c7 Chris Mason 2007-08-29 1020 }
96da09192cda57a Qu Wenruo 2016-01-19 1021 check:
5fbc6eb594ec691 Josef Bacik 2020-10-16 1022 /* We're read-only, don't
have to check. */
5fbc6eb594ec691 Josef Bacik 2020-10-16 1023 if (new_flags & SB_RDONLY)
5fbc6eb594ec691 Josef Bacik 2020-10-16 1024 goto out;
5fbc6eb594ec691 Josef Bacik 2020-10-16 1025
7450eeae7bb4345 Josef Bacik 2020-10-16 1026 if (check_ro_option(info,
BTRFS_MOUNT_NOLOGREPLAY, "nologreplay") ||
b60fde497be1f9a Josef Bacik 2020-10-16 1027 check_ro_option(info,
BTRFS_MOUNT_IGNOREBADROOTS, "ignorebadroots") ||
b60fde497be1f9a Josef Bacik 2020-10-16 1028 check_ro_option(info,
BTRFS_MOUNT_IGNOREDATACSUMS, "ignoredatacsums"))
96da09192cda57a Qu Wenruo 2016-01-19 1029 ret = -EINVAL;
a7a3f7cadd9bdee Sage Weil 2009-11-07 1030 out:
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 1031 if (btrfs_fs_compat_ro(info,
FREE_SPACE_TREE) &&
3cdde2240d4533f Jeff Mahoney 2016-06-09 1032 !btrfs_test_opt(info,
FREE_SPACE_TREE) &&
3cdde2240d4533f Jeff Mahoney 2016-06-09 1033 !btrfs_test_opt(info,
CLEAR_CACHE)) {
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 1034 btrfs_err(info, "cannot
disable free space tree");
70f6d82ec73c3ae Omar Sandoval 2015-09-29 1035 ret = -EINVAL;
70f6d82ec73c3ae Omar Sandoval 2015-09-29 1036
70f6d82ec73c3ae Omar Sandoval 2015-09-29 1037 }
3cdde2240d4533f Jeff Mahoney 2016-06-09 1038 if (!ret &&
btrfs_test_opt(info, SPACE_CACHE))
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 1039 btrfs_info(info, "disk
space caching is enabled");
3cdde2240d4533f Jeff Mahoney 2016-06-09 1040 if (!ret &&
btrfs_test_opt(info, FREE_SPACE_TREE))
0b246afa62b0cf5 Jeff Mahoney 2016-06-22 1041 btrfs_info(info, "using
free space tree");
a7a3f7cadd9bdee Sage Weil 2009-11-07 1042 return ret;
edf24abe51493cc Christoph Hellwig 2008-06-10 @1043 }
edf24abe51493cc Christoph Hellwig 2008-06-10 1044
:::::: The code at line 1043 was first introduced by commit
:::::: edf24abe51493ccda384644d487fe2f796ac21c8 btrfs: sanity mount option parsing and
early mount code
:::::: TO: Christoph Hellwig <hch(a)lst.de>
:::::: CC: Chris Mason <chris.mason(a)oracle.com>
---
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