tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: a6bd6c9333397f5a0e2667d4d82fef8c970108f2 commit: 9aa556ae32f93a3d72747460903fdd229be19d54 [2064/2532] mm: vmalloc: enable memory allocation profiling config: sparc-allmodconfig (https://download.01.org/0day-ci/archive/20240329/202403290754.Kzntd5yH-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240329/202403290754.Kzntd5yH-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202403290754.Kzntd5yH-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> mm/vmalloc.c:3724: warning: expecting prototype for __vmalloc_node_range_noprof(). Prototype was for __vmalloc_node_range() instead >> mm/vmalloc.c:3869: warning: expecting prototype for __vmalloc_node_noprof(). Prototype was for __vmalloc_node() instead >> mm/vmalloc.c:3942: warning: expecting prototype for vzalloc_noprof(). Prototype was for vzalloc() instead >> mm/vmalloc.c:3980: warning: expecting prototype for vmalloc_node_noprof(). Prototype was for vmalloc_node() instead >> mm/vmalloc.c:3998: warning: expecting prototype for vzalloc_node_noprof(). Prototype was for vzalloc_node() instead >> mm/vmalloc.c:4026: warning: expecting prototype for vmalloc_32_noprof(). Prototype was for vmalloc_32() instead >> mm/vmalloc.c:4042: warning: expecting prototype for vmalloc_32_user_noprof(). Prototype was for vmalloc_32_user() instead vim +3724 mm/vmalloc.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 3691 ^1da177e4c3f41 Linus Torvalds 2005-04-16 3692 /** 9aa556ae32f93a Kent Overstreet 2024-03-21 3693 * __vmalloc_node_range_noprof - allocate virtually contiguous memory ^1da177e4c3f41 Linus Torvalds 2005-04-16 3694 * @size: allocation size 2dca6999eed58d David Miller 2009-09-21 3695 * @align: desired alignment d0a21265dfb5fa David Rientjes 2011-01-13 3696 * @start: vm area range start d0a21265dfb5fa David Rientjes 2011-01-13 3697 * @end: vm area range end ^1da177e4c3f41 Linus Torvalds 2005-04-16 3698 * @gfp_mask: flags for the page level allocator ^1da177e4c3f41 Linus Torvalds 2005-04-16 3699 * @prot: protection mask for the allocated pages cb9e3c292d0115 Andrey Ryabinin 2015-02-13 3700 * @vm_flags: additional vm area flags (e.g. %VM_NO_GUARD) 00ef2d2f84babb David Rientjes 2013-02-22 3701 * @node: node to use for allocation or NUMA_NO_NODE c85d194bfd2e36 Randy Dunlap 2008-05-01 3702 * @caller: caller's return address ^1da177e4c3f41 Linus Torvalds 2005-04-16 3703 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 3704 * Allocate enough pages to cover @size from the page level b7d90e7a5ea8d6 Michal Hocko 2021-11-05 3705 * allocator with @gfp_mask flags. Please note that the full set of gfp 30d3f01191d305 Michal Hocko 2022-01-14 3706 * flags are not supported. GFP_KERNEL, GFP_NOFS and GFP_NOIO are all 30d3f01191d305 Michal Hocko 2022-01-14 3707 * supported. 30d3f01191d305 Michal Hocko 2022-01-14 3708 * Zone modifiers are not supported. From the reclaim modifiers 30d3f01191d305 Michal Hocko 2022-01-14 3709 * __GFP_DIRECT_RECLAIM is required (aka GFP_NOWAIT is not supported) 30d3f01191d305 Michal Hocko 2022-01-14 3710 * and only __GFP_NOFAIL is supported (i.e. __GFP_NORETRY and 30d3f01191d305 Michal Hocko 2022-01-14 3711 * __GFP_RETRY_MAYFAIL are not supported). 30d3f01191d305 Michal Hocko 2022-01-14 3712 * 30d3f01191d305 Michal Hocko 2022-01-14 3713 * __GFP_NOWARN can be used to suppress failures messages. b7d90e7a5ea8d6 Michal Hocko 2021-11-05 3714 * b7d90e7a5ea8d6 Michal Hocko 2021-11-05 3715 * Map them into contiguous kernel virtual space, using a pagetable b7d90e7a5ea8d6 Michal Hocko 2021-11-05 3716 * protection of @prot. a862f68a8b3600 Mike Rapoport 2019-03-05 3717 * a862f68a8b3600 Mike Rapoport 2019-03-05 3718 * Return: the address of the area or %NULL on failure ^1da177e4c3f41 Linus Torvalds 2005-04-16 3719 */ 9aa556ae32f93a Kent Overstreet 2024-03-21 3720 void *__vmalloc_node_range_noprof(unsigned long size, unsigned long align, d0a21265dfb5fa David Rientjes 2011-01-13 3721 unsigned long start, unsigned long end, gfp_t gfp_mask, cb9e3c292d0115 Andrey Ryabinin 2015-02-13 3722 pgprot_t prot, unsigned long vm_flags, int node, cb9e3c292d0115 Andrey Ryabinin 2015-02-13 3723 const void *caller) ^1da177e4c3f41 Linus Torvalds 2005-04-16 @3724 { ^1da177e4c3f41 Linus Torvalds 2005-04-16 3725 struct vm_struct *area; 19f1c3acf8f443 Andrey Konovalov 2022-03-24 3726 void *ret; f6e39794f4b6da Andrey Konovalov 2022-03-24 3727 kasan_vmalloc_flags_t kasan_flags = KASAN_VMALLOC_NONE; 89219d37a2377c Catalin Marinas 2009-06-11 3728 unsigned long real_size = size; 121e6f3258fe39 Nicholas Piggin 2021-04-29 3729 unsigned long real_align = align; 121e6f3258fe39 Nicholas Piggin 2021-04-29 3730 unsigned int shift = PAGE_SHIFT; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3731 d70bec8cc95ad3 Nicholas Piggin 2021-04-29 3732 if (WARN_ON_ONCE(!size)) d70bec8cc95ad3 Nicholas Piggin 2021-04-29 3733 return NULL; d70bec8cc95ad3 Nicholas Piggin 2021-04-29 3734 d70bec8cc95ad3 Nicholas Piggin 2021-04-29 3735 if ((size >> PAGE_SHIFT) > totalram_pages()) { d70bec8cc95ad3 Nicholas Piggin 2021-04-29 3736 warn_alloc(gfp_mask, NULL, f4bdfeaf18a44b Uladzislau Rezki (Sony 2021-06-28 3737) "vmalloc error: size %lu, exceeds total pages", f4bdfeaf18a44b Uladzislau Rezki (Sony 2021-06-28 3738) real_size); d70bec8cc95ad3 Nicholas Piggin 2021-04-29 3739 return NULL; 121e6f3258fe39 Nicholas Piggin 2021-04-29 3740 } 121e6f3258fe39 Nicholas Piggin 2021-04-29 3741 559089e0a93d44 Song Liu 2022-04-15 3742 if (vmap_allow_huge && (vm_flags & VM_ALLOW_HUGE_VMAP)) { 121e6f3258fe39 Nicholas Piggin 2021-04-29 3743 unsigned long size_per_node; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3744 121e6f3258fe39 Nicholas Piggin 2021-04-29 3745 /* 121e6f3258fe39 Nicholas Piggin 2021-04-29 3746 * Try huge pages. Only try for PAGE_KERNEL allocations, 121e6f3258fe39 Nicholas Piggin 2021-04-29 3747 * others like modules don't yet expect huge pages in 121e6f3258fe39 Nicholas Piggin 2021-04-29 3748 * their allocations due to apply_to_page_range not 121e6f3258fe39 Nicholas Piggin 2021-04-29 3749 * supporting them. 121e6f3258fe39 Nicholas Piggin 2021-04-29 3750 */ 121e6f3258fe39 Nicholas Piggin 2021-04-29 3751 121e6f3258fe39 Nicholas Piggin 2021-04-29 3752 size_per_node = size; 121e6f3258fe39 Nicholas Piggin 2021-04-29 3753 if (node == NUMA_NO_NODE) 121e6f3258fe39 Nicholas Piggin 2021-04-29 3754 size_per_node /= num_online_nodes(); 3382bbee0464bf Christophe Leroy 2021-06-30 3755 if (arch_vmap_pmd_supported(prot) && size_per_node >= PMD_SIZE) 121e6f3258fe39 Nicholas Piggin 2021-04-29 3756 shift = PMD_SHIFT; 3382bbee0464bf Christophe Leroy 2021-06-30 3757 else 3382bbee0464bf Christophe Leroy 2021-06-30 3758 shift = arch_vmap_pte_supported_shift(size_per_node); 3382bbee0464bf Christophe Leroy 2021-06-30 3759 121e6f3258fe39 Nicholas Piggin 2021-04-29 3760 align = max(real_align, 1UL << shift); 121e6f3258fe39 Nicholas Piggin 2021-04-29 3761 size = ALIGN(real_size, 1UL << shift); 121e6f3258fe39 Nicholas Piggin 2021-04-29 3762 } 121e6f3258fe39 Nicholas Piggin 2021-04-29 3763 121e6f3258fe39 Nicholas Piggin 2021-04-29 3764 again: 7ca3027b726be6 Daniel Axtens 2021-06-24 3765 area = __get_vm_area_node(real_size, align, shift, VM_ALLOC | 7ca3027b726be6 Daniel Axtens 2021-06-24 3766 VM_UNINITIALIZED | vm_flags, start, end, node, 7ca3027b726be6 Daniel Axtens 2021-06-24 3767 gfp_mask, caller); d70bec8cc95ad3 Nicholas Piggin 2021-04-29 3768 if (!area) { 9376130c390a76 Michal Hocko 2022-01-14 3769 bool nofail = gfp_mask & __GFP_NOFAIL; d70bec8cc95ad3 Nicholas Piggin 2021-04-29 3770 warn_alloc(gfp_mask, NULL, 9376130c390a76 Michal Hocko 2022-01-14 3771 "vmalloc error: size %lu, vm_struct allocation failed%s", 9376130c390a76 Michal Hocko 2022-01-14 3772 real_size, (nofail) ? ". Retrying." : ""); 9376130c390a76 Michal Hocko 2022-01-14 3773 if (nofail) { 9376130c390a76 Michal Hocko 2022-01-14 3774 schedule_timeout_uninterruptible(1); 9376130c390a76 Michal Hocko 2022-01-14 3775 goto again; 9376130c390a76 Michal Hocko 2022-01-14 3776 } de7d2b567d040e Joe Perches 2011-10-31 3777 goto fail; d70bec8cc95ad3 Nicholas Piggin 2021-04-29 3778 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 3779 f6e39794f4b6da Andrey Konovalov 2022-03-24 3780 /* f6e39794f4b6da Andrey Konovalov 2022-03-24 3781 * Prepare arguments for __vmalloc_area_node() and f6e39794f4b6da Andrey Konovalov 2022-03-24 3782 * kasan_unpoison_vmalloc(). f6e39794f4b6da Andrey Konovalov 2022-03-24 3783 */ f6e39794f4b6da Andrey Konovalov 2022-03-24 3784 if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) { f6e39794f4b6da Andrey Konovalov 2022-03-24 3785 if (kasan_hw_tags_enabled()) { 01d92c7f358ce8 Andrey Konovalov 2022-03-24 3786 /* 01d92c7f358ce8 Andrey Konovalov 2022-03-24 3787 * Modify protection bits to allow tagging. f6e39794f4b6da Andrey Konovalov 2022-03-24 3788 * This must be done before mapping. 01d92c7f358ce8 Andrey Konovalov 2022-03-24 3789 */ 01d92c7f358ce8 Andrey Konovalov 2022-03-24 3790 prot = arch_vmap_pgprot_tagged(prot); 01d92c7f358ce8 Andrey Konovalov 2022-03-24 3791 23689e91fb22c1 Andrey Konovalov 2022-03-24 3792 /* f6e39794f4b6da Andrey Konovalov 2022-03-24 3793 * Skip page_alloc poisoning and zeroing for physical f6e39794f4b6da Andrey Konovalov 2022-03-24 3794 * pages backing VM_ALLOC mapping. Memory is instead f6e39794f4b6da Andrey Konovalov 2022-03-24 3795 * poisoned and zeroed by kasan_unpoison_vmalloc(). 23689e91fb22c1 Andrey Konovalov 2022-03-24 3796 */ 0a54864f8dfb64 Peter Collingbourne 2023-03-09 3797 gfp_mask |= __GFP_SKIP_KASAN | __GFP_SKIP_ZERO; 23689e91fb22c1 Andrey Konovalov 2022-03-24 3798 } 23689e91fb22c1 Andrey Konovalov 2022-03-24 3799 f6e39794f4b6da Andrey Konovalov 2022-03-24 3800 /* Take note that the mapping is PAGE_KERNEL. */ f6e39794f4b6da Andrey Konovalov 2022-03-24 3801 kasan_flags |= KASAN_VMALLOC_PROT_NORMAL; f6e39794f4b6da Andrey Konovalov 2022-03-24 3802 } f6e39794f4b6da Andrey Konovalov 2022-03-24 3803 01d92c7f358ce8 Andrey Konovalov 2022-03-24 3804 /* Allocate physical pages and map them into vmalloc space. */ 19f1c3acf8f443 Andrey Konovalov 2022-03-24 3805 ret = __vmalloc_area_node(area, gfp_mask, prot, shift, node); 19f1c3acf8f443 Andrey Konovalov 2022-03-24 3806 if (!ret) 121e6f3258fe39 Nicholas Piggin 2021-04-29 3807 goto fail; 89219d37a2377c Catalin Marinas 2009-06-11 3808 23689e91fb22c1 Andrey Konovalov 2022-03-24 3809 /* 23689e91fb22c1 Andrey Konovalov 2022-03-24 3810 * Mark the pages as accessible, now that they are mapped. 6c2f761dad7851 Andrey Konovalov 2022-06-09 3811 * The condition for setting KASAN_VMALLOC_INIT should complement the 6c2f761dad7851 Andrey Konovalov 2022-06-09 3812 * one in post_alloc_hook() with regards to the __GFP_SKIP_ZERO check 6c2f761dad7851 Andrey Konovalov 2022-06-09 3813 * to make sure that memory is initialized under the same conditions. f6e39794f4b6da Andrey Konovalov 2022-03-24 3814 * Tag-based KASAN modes only assign tags to normal non-executable f6e39794f4b6da Andrey Konovalov 2022-03-24 3815 * allocations, see __kasan_unpoison_vmalloc(). 23689e91fb22c1 Andrey Konovalov 2022-03-24 3816 */ f6e39794f4b6da Andrey Konovalov 2022-03-24 3817 kasan_flags |= KASAN_VMALLOC_VM_ALLOC; 6c2f761dad7851 Andrey Konovalov 2022-06-09 3818 if (!want_init_on_free() && want_init_on_alloc(gfp_mask) && 6c2f761dad7851 Andrey Konovalov 2022-06-09 3819 (gfp_mask & __GFP_SKIP_ZERO)) 23689e91fb22c1 Andrey Konovalov 2022-03-24 3820 kasan_flags |= KASAN_VMALLOC_INIT; f6e39794f4b6da Andrey Konovalov 2022-03-24 3821 /* KASAN_VMALLOC_PROT_NORMAL already set if required. */ 23689e91fb22c1 Andrey Konovalov 2022-03-24 3822 area->addr = kasan_unpoison_vmalloc(area->addr, real_size, kasan_flags); 19f1c3acf8f443 Andrey Konovalov 2022-03-24 3823 f5252e009d5b87 Mitsuo Hayasaka 2011-10-31 3824 /* 20fc02b477c526 Zhang Yanfei 2013-07-08 3825 * In this function, newly allocated vm_struct has VM_UNINITIALIZED 20fc02b477c526 Zhang Yanfei 2013-07-08 3826 * flag. It means that vm_struct is not fully initialized. 4341fa454796b8 Joonsoo Kim 2013-04-29 3827 * Now, it is fully initialized, so remove this flag here. f5252e009d5b87 Mitsuo Hayasaka 2011-10-31 3828 */ 20fc02b477c526 Zhang Yanfei 2013-07-08 3829 clear_vm_uninitialized_flag(area); f5252e009d5b87 Mitsuo Hayasaka 2011-10-31 3830 7ca3027b726be6 Daniel Axtens 2021-06-24 3831 size = PAGE_ALIGN(size); 60115fa54ad7b9 Kefeng Wang 2022-01-14 3832 if (!(vm_flags & VM_DEFER_KMEMLEAK)) 94f4a1618b4c2b Catalin Marinas 2017-07-06 3833 kmemleak_vmalloc(area, size, gfp_mask); 89219d37a2377c Catalin Marinas 2009-06-11 3834 19f1c3acf8f443 Andrey Konovalov 2022-03-24 3835 return area->addr; de7d2b567d040e Joe Perches 2011-10-31 3836 de7d2b567d040e Joe Perches 2011-10-31 3837 fail: 121e6f3258fe39 Nicholas Piggin 2021-04-29 3838 if (shift > PAGE_SHIFT) { 121e6f3258fe39 Nicholas Piggin 2021-04-29 3839 shift = PAGE_SHIFT; 121e6f3258fe39 Nicholas Piggin 2021-04-29 3840 align = real_align; 121e6f3258fe39 Nicholas Piggin 2021-04-29 3841 size = real_size; 121e6f3258fe39 Nicholas Piggin 2021-04-29 3842 goto again; 121e6f3258fe39 Nicholas Piggin 2021-04-29 3843 } 121e6f3258fe39 Nicholas Piggin 2021-04-29 3844 de7d2b567d040e Joe Perches 2011-10-31 3845 return NULL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 3846 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 3847 d0a21265dfb5fa David Rientjes 2011-01-13 3848 /** 9aa556ae32f93a Kent Overstreet 2024-03-21 3849 * __vmalloc_node_noprof - allocate virtually contiguous memory d0a21265dfb5fa David Rientjes 2011-01-13 3850 * @size: allocation size d0a21265dfb5fa David Rientjes 2011-01-13 3851 * @align: desired alignment d0a21265dfb5fa David Rientjes 2011-01-13 3852 * @gfp_mask: flags for the page level allocator 00ef2d2f84babb David Rientjes 2013-02-22 3853 * @node: node to use for allocation or NUMA_NO_NODE d0a21265dfb5fa David Rientjes 2011-01-13 3854 * @caller: caller's return address d0a21265dfb5fa David Rientjes 2011-01-13 3855 * f38fcb9c1c5e9d Christoph Hellwig 2020-06-01 3856 * Allocate enough pages to cover @size from the page level allocator with f38fcb9c1c5e9d Christoph Hellwig 2020-06-01 3857 * @gfp_mask flags. Map them into contiguous kernel virtual space. a7c3e901a46ff5 Michal Hocko 2017-05-08 3858 * dcda9b04713c3f Michal Hocko 2017-07-12 3859 * Reclaim modifiers in @gfp_mask - __GFP_NORETRY, __GFP_RETRY_MAYFAIL a7c3e901a46ff5 Michal Hocko 2017-05-08 3860 * and __GFP_NOFAIL are not supported a7c3e901a46ff5 Michal Hocko 2017-05-08 3861 * a7c3e901a46ff5 Michal Hocko 2017-05-08 3862 * Any use of gfp flags outside of GFP_KERNEL should be consulted a7c3e901a46ff5 Michal Hocko 2017-05-08 3863 * with mm people. a862f68a8b3600 Mike Rapoport 2019-03-05 3864 * a862f68a8b3600 Mike Rapoport 2019-03-05 3865 * Return: pointer to the allocated memory or %NULL on error d0a21265dfb5fa David Rientjes 2011-01-13 3866 */ 9aa556ae32f93a Kent Overstreet 2024-03-21 3867 void *__vmalloc_node_noprof(unsigned long size, unsigned long align, f38fcb9c1c5e9d Christoph Hellwig 2020-06-01 3868 gfp_t gfp_mask, int node, const void *caller) d0a21265dfb5fa David Rientjes 2011-01-13 @3869 { 9aa556ae32f93a Kent Overstreet 2024-03-21 3870 return __vmalloc_node_range_noprof(size, align, VMALLOC_START, VMALLOC_END, f38fcb9c1c5e9d Christoph Hellwig 2020-06-01 3871 gfp_mask, PAGE_KERNEL, 0, node, caller); d0a21265dfb5fa David Rientjes 2011-01-13 3872 } c3f896dcf1e479 Christoph Hellwig 2020-06-01 3873 /* c3f896dcf1e479 Christoph Hellwig 2020-06-01 3874 * This is only for performance analysis of vmalloc and stress purpose. c3f896dcf1e479 Christoph Hellwig 2020-06-01 3875 * It is required by vmalloc test module, therefore do not use it other c3f896dcf1e479 Christoph Hellwig 2020-06-01 3876 * than that. c3f896dcf1e479 Christoph Hellwig 2020-06-01 3877 */ c3f896dcf1e479 Christoph Hellwig 2020-06-01 3878 #ifdef CONFIG_TEST_VMALLOC_MODULE 9aa556ae32f93a Kent Overstreet 2024-03-21 3879 EXPORT_SYMBOL_GPL(__vmalloc_node_noprof); c3f896dcf1e479 Christoph Hellwig 2020-06-01 3880 #endif d0a21265dfb5fa David Rientjes 2011-01-13 3881 :::::: The code at line 3724 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
