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&gt; 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': 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&gt; :::::: CC: Chris Mason <chris.mason(a)oracle.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org