From: kernel test robot <lkp@intel.com>
To: Barry Song <21cnbao@gmail.com>
Cc: oe-kbuild-all@lists.linux.dev
Subject: Re: [PATCH RFC v4 1/2] mm: swap: introduce swapcache_prepare_nr and swapcache_clear_nr for large folios swap-in
Date: Sun, 30 Jun 2024 20:00:11 +0800 [thread overview]
Message-ID: <202406301911.VYfzWCHM-lkp@intel.com> (raw)
In-Reply-To: <20240629111010.230484-2-21cnbao@gmail.com>
[-- Attachment #1: Type: text/plain, Size: 38645 bytes --]
Hi Barry,
[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-everything]
url: https://github.com/intel-lab-lkp/linux/commits/Barry-Song/mm-swap-introduce-swapcache_prepare_nr-and-swapcache_clear_nr-for-large-folios-swap-in/20240630-180307
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/20240629111010.230484-2-21cnbao%40gmail.com
patch subject: [PATCH RFC v4 1/2] mm: swap: introduce swapcache_prepare_nr and swapcache_clear_nr for large folios swap-in
config: openrisc-allnoconfig
compiler: or1k-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build):
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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202406301911.VYfzWCHM-lkp@intel.com/
All errors (new ones prefixed by >>):
mm/memory.c: In function 'do_swap_page':
mm/memory.c:4085:29: error: implicit declaration of function 'swapcache_prepare'; did you mean 'swapcache_prepare_nr'? [-Werror=implicit-function-declaration]
4085 | if (swapcache_prepare(entry)) {
| ^~~~~~~~~~~~~~~~~
| swapcache_prepare_nr
>> mm/memory.c:4391:17: error: implicit declaration of function 'swapcache_clear'; did you mean 'swapcache_clear_nr'? [-Werror=implicit-function-declaration]
4391 | swapcache_clear(si, entry);
| ^~~~~~~~~~~~~~~
| swapcache_clear_nr
cc1: some warnings being treated as errors
vim +4391 mm/memory.c
5c041f5d1f23d3 Peter Xu 2022-05-12 3989
^1da177e4c3f41 Linus Torvalds 2005-04-16 3990 /*
c1e8d7c6a7a682 Michel Lespinasse 2020-06-08 3991 * We enter with non-exclusive mmap_lock (to exclude vma changes,
8f4e2101fd7df9 Hugh Dickins 2005-10-29 3992 * but allow concurrent faults), and pte mapped but not yet locked.
9a95f3cf7b33d6 Paul Cassella 2014-08-06 3993 * We return with pte unmapped and unlocked.
9a95f3cf7b33d6 Paul Cassella 2014-08-06 3994 *
c1e8d7c6a7a682 Michel Lespinasse 2020-06-08 3995 * We return with the mmap_lock locked or unlocked in the same cases
9a95f3cf7b33d6 Paul Cassella 2014-08-06 3996 * as does filemap_fault().
^1da177e4c3f41 Linus Torvalds 2005-04-16 3997 */
2b7403035459c7 Souptick Joarder 2018-08-23 3998 vm_fault_t do_swap_page(struct vm_fault *vmf)
^1da177e4c3f41 Linus Torvalds 2005-04-16 3999 {
82b0f8c39a3869 Jan Kara 2016-12-14 4000 struct vm_area_struct *vma = vmf->vma;
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4001) struct folio *swapcache, *folio = NULL;
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4002) struct page *page;
2799e77529c2a2 Miaohe Lin 2021-06-28 4003 struct swap_info_struct *si = NULL;
14f9135d547060 David Hildenbrand 2022-05-09 4004 rmap_t rmap_flags = RMAP_NONE;
13ddaf26be324a Kairui Song 2024-02-07 4005 bool need_clear_cache = false;
1493a1913e34b0 David Hildenbrand 2022-05-09 4006 bool exclusive = false;
65500d234e74fc Hugh Dickins 2005-10-29 4007 swp_entry_t entry;
^1da177e4c3f41 Linus Torvalds 2005-04-16 4008 pte_t pte;
2b7403035459c7 Souptick Joarder 2018-08-23 4009 vm_fault_t ret = 0;
aae466b0052e18 Joonsoo Kim 2020-08-11 4010 void *shadow = NULL;
b87b78172664e3 Chuanhua Han 2024-05-29 4011 int nr_pages;
b87b78172664e3 Chuanhua Han 2024-05-29 4012 unsigned long page_idx;
b87b78172664e3 Chuanhua Han 2024-05-29 4013 unsigned long address;
b87b78172664e3 Chuanhua Han 2024-05-29 4014 pte_t *ptep;
^1da177e4c3f41 Linus Torvalds 2005-04-16 4015
2ca99358671ad3 Peter Xu 2021-11-05 4016 if (!pte_unmap_same(vmf))
8f4e2101fd7df9 Hugh Dickins 2005-10-29 4017 goto out;
65500d234e74fc Hugh Dickins 2005-10-29 4018
2994302bc8a171 Jan Kara 2016-12-14 4019 entry = pte_to_swp_entry(vmf->orig_pte);
d1737fdbec7f90 Andi Kleen 2009-09-16 4020 if (unlikely(non_swap_entry(entry))) {
0697212a411c1d Christoph Lameter 2006-06-23 4021 if (is_migration_entry(entry)) {
82b0f8c39a3869 Jan Kara 2016-12-14 4022 migration_entry_wait(vma->vm_mm, vmf->pmd,
82b0f8c39a3869 Jan Kara 2016-12-14 4023 vmf->address);
b756a3b5e7ead8 Alistair Popple 2021-06-30 4024 } else if (is_device_exclusive_entry(entry)) {
b756a3b5e7ead8 Alistair Popple 2021-06-30 4025 vmf->page = pfn_swap_entry_to_page(entry);
b756a3b5e7ead8 Alistair Popple 2021-06-30 4026 ret = remove_device_exclusive_entry(vmf);
5042db43cc26f5 Jérôme Glisse 2017-09-08 4027 } else if (is_device_private_entry(entry)) {
1235ccd05b6dd6 Suren Baghdasaryan 2023-06-30 4028 if (vmf->flags & FAULT_FLAG_VMA_LOCK) {
1235ccd05b6dd6 Suren Baghdasaryan 2023-06-30 4029 /*
1235ccd05b6dd6 Suren Baghdasaryan 2023-06-30 4030 * migrate_to_ram is not yet ready to operate
1235ccd05b6dd6 Suren Baghdasaryan 2023-06-30 4031 * under VMA lock.
1235ccd05b6dd6 Suren Baghdasaryan 2023-06-30 4032 */
1235ccd05b6dd6 Suren Baghdasaryan 2023-06-30 4033 vma_end_read(vma);
1235ccd05b6dd6 Suren Baghdasaryan 2023-06-30 4034 ret = VM_FAULT_RETRY;
1235ccd05b6dd6 Suren Baghdasaryan 2023-06-30 4035 goto out;
1235ccd05b6dd6 Suren Baghdasaryan 2023-06-30 4036 }
1235ccd05b6dd6 Suren Baghdasaryan 2023-06-30 4037
af5cdaf82238fb Alistair Popple 2021-06-30 4038 vmf->page = pfn_swap_entry_to_page(entry);
16ce101db85db6 Alistair Popple 2022-09-28 4039 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd,
16ce101db85db6 Alistair Popple 2022-09-28 4040 vmf->address, &vmf->ptl);
3db82b9374ca92 Hugh Dickins 2023-06-08 4041 if (unlikely(!vmf->pte ||
c33c794828f212 Ryan Roberts 2023-06-12 4042 !pte_same(ptep_get(vmf->pte),
c33c794828f212 Ryan Roberts 2023-06-12 4043 vmf->orig_pte)))
3b65f437d9e8dd Ryan Roberts 2023-06-02 4044 goto unlock;
16ce101db85db6 Alistair Popple 2022-09-28 4045
16ce101db85db6 Alistair Popple 2022-09-28 4046 /*
16ce101db85db6 Alistair Popple 2022-09-28 4047 * Get a page reference while we know the page can't be
16ce101db85db6 Alistair Popple 2022-09-28 4048 * freed.
16ce101db85db6 Alistair Popple 2022-09-28 4049 */
16ce101db85db6 Alistair Popple 2022-09-28 4050 get_page(vmf->page);
16ce101db85db6 Alistair Popple 2022-09-28 4051 pte_unmap_unlock(vmf->pte, vmf->ptl);
4a955bed882e73 Alistair Popple 2022-11-14 4052 ret = vmf->page->pgmap->ops->migrate_to_ram(vmf);
16ce101db85db6 Alistair Popple 2022-09-28 4053 put_page(vmf->page);
d1737fdbec7f90 Andi Kleen 2009-09-16 4054 } else if (is_hwpoison_entry(entry)) {
d1737fdbec7f90 Andi Kleen 2009-09-16 4055 ret = VM_FAULT_HWPOISON;
5c041f5d1f23d3 Peter Xu 2022-05-12 4056 } else if (is_pte_marker_entry(entry)) {
5c041f5d1f23d3 Peter Xu 2022-05-12 4057 ret = handle_pte_marker(vmf);
d1737fdbec7f90 Andi Kleen 2009-09-16 4058 } else {
2994302bc8a171 Jan Kara 2016-12-14 4059 print_bad_pte(vma, vmf->address, vmf->orig_pte, NULL);
d99be1a8ecf377 Hugh Dickins 2009-12-14 4060 ret = VM_FAULT_SIGBUS;
d1737fdbec7f90 Andi Kleen 2009-09-16 4061 }
0697212a411c1d Christoph Lameter 2006-06-23 4062 goto out;
0697212a411c1d Christoph Lameter 2006-06-23 4063 }
0bcac06f27d752 Minchan Kim 2017-11-15 4064
2799e77529c2a2 Miaohe Lin 2021-06-28 4065 /* Prevent swapoff from happening to us. */
2799e77529c2a2 Miaohe Lin 2021-06-28 4066 si = get_swap_device(entry);
2799e77529c2a2 Miaohe Lin 2021-06-28 4067 if (unlikely(!si))
2799e77529c2a2 Miaohe Lin 2021-06-28 4068 goto out;
0bcac06f27d752 Minchan Kim 2017-11-15 4069
5a423081b2465d Matthew Wilcox (Oracle 2022-09-02 4070) folio = swap_cache_get_folio(entry, vma, vmf->address);
5a423081b2465d Matthew Wilcox (Oracle 2022-09-02 4071) if (folio)
5a423081b2465d Matthew Wilcox (Oracle 2022-09-02 4072) page = folio_file_page(folio, swp_offset(entry));
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4073) swapcache = folio;
f80207727aaca3 Minchan Kim 2018-01-18 4074
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4075) if (!folio) {
a449bf58e45abf Qian Cai 2020-08-14 4076 if (data_race(si->flags & SWP_SYNCHRONOUS_IO) &&
eb085574a7526c Huang Ying 2019-07-11 4077 __swap_count(entry) == 1) {
13ddaf26be324a Kairui Song 2024-02-07 4078 /*
13ddaf26be324a Kairui Song 2024-02-07 4079 * Prevent parallel swapin from proceeding with
13ddaf26be324a Kairui Song 2024-02-07 4080 * the cache flag. Otherwise, another thread may
13ddaf26be324a Kairui Song 2024-02-07 4081 * finish swapin first, free the entry, and swapout
13ddaf26be324a Kairui Song 2024-02-07 4082 * reusing the same entry. It's undetectable as
13ddaf26be324a Kairui Song 2024-02-07 4083 * pte_same() returns true due to entry reuse.
13ddaf26be324a Kairui Song 2024-02-07 4084 */
13ddaf26be324a Kairui Song 2024-02-07 4085 if (swapcache_prepare(entry)) {
13ddaf26be324a Kairui Song 2024-02-07 4086 /* Relax a bit to prevent rapid repeated page faults */
13ddaf26be324a Kairui Song 2024-02-07 4087 schedule_timeout_uninterruptible(1);
13ddaf26be324a Kairui Song 2024-02-07 4088 goto out;
13ddaf26be324a Kairui Song 2024-02-07 4089 }
13ddaf26be324a Kairui Song 2024-02-07 4090 need_clear_cache = true;
13ddaf26be324a Kairui Song 2024-02-07 4091
0bcac06f27d752 Minchan Kim 2017-11-15 4092 /* skip swapcache */
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4093) folio = vma_alloc_folio(GFP_HIGHUSER_MOVABLE, 0,
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4094) vma, vmf->address, false);
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4095) page = &folio->page;
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4096) if (folio) {
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4097) __folio_set_locked(folio);
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4098) __folio_set_swapbacked(folio);
4c6355b25e8bb8 Johannes Weiner 2020-06-03 4099
6599591816f522 Matthew Wilcox (Oracle 2022-09-02 4100) if (mem_cgroup_swapin_charge_folio(folio,
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4101) vma->vm_mm, GFP_KERNEL,
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4102) entry)) {
545b1b077ca6b3 Michal Hocko 2020-06-25 4103 ret = VM_FAULT_OOM;
4c6355b25e8bb8 Johannes Weiner 2020-06-03 4104 goto out_page;
545b1b077ca6b3 Michal Hocko 2020-06-25 4105 }
0add0c77a9bd0c Shakeel Butt 2021-04-29 4106 mem_cgroup_swapin_uncharge_swap(entry);
4c6355b25e8bb8 Johannes Weiner 2020-06-03 4107
aae466b0052e18 Joonsoo Kim 2020-08-11 4108 shadow = get_shadow_from_swap_cache(entry);
aae466b0052e18 Joonsoo Kim 2020-08-11 4109 if (shadow)
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4110) workingset_refault(folio, shadow);
0076f029cb2906 Joonsoo Kim 2020-06-25 4111
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4112) folio_add_lru(folio);
0add0c77a9bd0c Shakeel Butt 2021-04-29 4113
c9bdf768dd9319 Matthew Wilcox (Oracle 2023-12-13 4114) /* To provide entry to swap_read_folio() */
3d2c9087688777 David Hildenbrand 2023-08-21 4115 folio->swap = entry;
420d8ce32b2681 Yosry Ahmed 2024-06-07 4116 swap_read_folio(folio, NULL);
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4117) folio->private = NULL;
0bcac06f27d752 Minchan Kim 2017-11-15 4118 }
aa8d22a11da933 Minchan Kim 2017-11-15 4119 } else {
e9e9b7ecee4a13 Minchan Kim 2018-04-05 4120 page = swapin_readahead(entry, GFP_HIGHUSER_MOVABLE,
e9e9b7ecee4a13 Minchan Kim 2018-04-05 4121 vmf);
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4122) if (page)
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4123) folio = page_folio(page);
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4124) swapcache = folio;
0bcac06f27d752 Minchan Kim 2017-11-15 4125 }
0bcac06f27d752 Minchan Kim 2017-11-15 4126
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4127) if (!folio) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 4128 /*
8f4e2101fd7df9 Hugh Dickins 2005-10-29 4129 * Back out if somebody else faulted in this pte
8f4e2101fd7df9 Hugh Dickins 2005-10-29 4130 * while we released the pte lock.
^1da177e4c3f41 Linus Torvalds 2005-04-16 4131 */
82b0f8c39a3869 Jan Kara 2016-12-14 4132 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd,
82b0f8c39a3869 Jan Kara 2016-12-14 4133 vmf->address, &vmf->ptl);
c33c794828f212 Ryan Roberts 2023-06-12 4134 if (likely(vmf->pte &&
c33c794828f212 Ryan Roberts 2023-06-12 4135 pte_same(ptep_get(vmf->pte), vmf->orig_pte)))
^1da177e4c3f41 Linus Torvalds 2005-04-16 4136 ret = VM_FAULT_OOM;
65500d234e74fc Hugh Dickins 2005-10-29 4137 goto unlock;
^1da177e4c3f41 Linus Torvalds 2005-04-16 4138 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 4139
^1da177e4c3f41 Linus Torvalds 2005-04-16 4140 /* Had to read the page from swap area: Major fault */
^1da177e4c3f41 Linus Torvalds 2005-04-16 4141 ret = VM_FAULT_MAJOR;
f8891e5e1f93a1 Christoph Lameter 2006-06-30 4142 count_vm_event(PGMAJFAULT);
2262185c5b287f Roman Gushchin 2017-07-06 4143 count_memcg_event_mm(vma->vm_mm, PGMAJFAULT);
d1737fdbec7f90 Andi Kleen 2009-09-16 4144 } else if (PageHWPoison(page)) {
71f72525dfaaec Wu Fengguang 2009-12-16 4145 /*
71f72525dfaaec Wu Fengguang 2009-12-16 4146 * hwpoisoned dirty swapcache pages are kept for killing
71f72525dfaaec Wu Fengguang 2009-12-16 4147 * owner processes (which may be unknown at hwpoison time)
71f72525dfaaec Wu Fengguang 2009-12-16 4148 */
d1737fdbec7f90 Andi Kleen 2009-09-16 4149 ret = VM_FAULT_HWPOISON;
4779cb31c0ee3b Andi Kleen 2009-10-14 4150 goto out_release;
^1da177e4c3f41 Linus Torvalds 2005-04-16 4151 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 4152
fdc724d6aa44ef Suren Baghdasaryan 2023-06-30 4153 ret |= folio_lock_or_retry(folio, vmf);
fdc724d6aa44ef Suren Baghdasaryan 2023-06-30 4154 if (ret & VM_FAULT_RETRY)
d065bd810b6deb Michel Lespinasse 2010-10-26 4155 goto out_release;
073e587ec2cc37 KAMEZAWA Hiroyuki 2008-10-18 4156
84d60fdd3733fb David Hildenbrand 2022-03-24 4157 if (swapcache) {
4969c1192d15af Andrea Arcangeli 2010-09-09 4158 /*
3b344157c0c15b Matthew Wilcox (Oracle 2022-09-02 4159) * Make sure folio_free_swap() or swapoff did not release the
84d60fdd3733fb David Hildenbrand 2022-03-24 4160 * swapcache from under us. The page pin, and pte_same test
84d60fdd3733fb David Hildenbrand 2022-03-24 4161 * below, are not enough to exclude that. Even if it is still
84d60fdd3733fb David Hildenbrand 2022-03-24 4162 * swapcache, we need to check that the page's swap has not
84d60fdd3733fb David Hildenbrand 2022-03-24 4163 * changed.
4969c1192d15af Andrea Arcangeli 2010-09-09 4164 */
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4165) if (unlikely(!folio_test_swapcache(folio) ||
cfeed8ffe55b37 David Hildenbrand 2023-08-21 4166 page_swap_entry(page).val != entry.val))
4969c1192d15af Andrea Arcangeli 2010-09-09 4167 goto out_page;
4969c1192d15af Andrea Arcangeli 2010-09-09 4168
84d60fdd3733fb David Hildenbrand 2022-03-24 4169 /*
84d60fdd3733fb David Hildenbrand 2022-03-24 4170 * KSM sometimes has to copy on read faults, for example, if
84d60fdd3733fb David Hildenbrand 2022-03-24 4171 * page->index of !PageKSM() pages would be nonlinear inside the
84d60fdd3733fb David Hildenbrand 2022-03-24 4172 * anon VMA -- PageKSM() is lost on actual swapout.
84d60fdd3733fb David Hildenbrand 2022-03-24 4173 */
96db66d9c8f3c1 Matthew Wilcox (Oracle 2023-12-11 4174) folio = ksm_might_need_to_copy(folio, vma, vmf->address);
96db66d9c8f3c1 Matthew Wilcox (Oracle 2023-12-11 4175) if (unlikely(!folio)) {
5ad6468801d28c Hugh Dickins 2009-12-14 4176 ret = VM_FAULT_OOM;
96db66d9c8f3c1 Matthew Wilcox (Oracle 2023-12-11 4177) folio = swapcache;
4969c1192d15af Andrea Arcangeli 2010-09-09 4178 goto out_page;
96db66d9c8f3c1 Matthew Wilcox (Oracle 2023-12-11 4179) } else if (unlikely(folio == ERR_PTR(-EHWPOISON))) {
6b970599e807ea Kefeng Wang 2022-12-09 4180 ret = VM_FAULT_HWPOISON;
96db66d9c8f3c1 Matthew Wilcox (Oracle 2023-12-11 4181) folio = swapcache;
6b970599e807ea Kefeng Wang 2022-12-09 4182 goto out_page;
4969c1192d15af Andrea Arcangeli 2010-09-09 4183 }
96db66d9c8f3c1 Matthew Wilcox (Oracle 2023-12-11 4184) if (folio != swapcache)
96db66d9c8f3c1 Matthew Wilcox (Oracle 2023-12-11 4185) page = folio_page(folio, 0);
c145e0b47c77eb David Hildenbrand 2022-03-24 4186
c145e0b47c77eb David Hildenbrand 2022-03-24 4187 /*
c145e0b47c77eb David Hildenbrand 2022-03-24 4188 * If we want to map a page that's in the swapcache writable, we
c145e0b47c77eb David Hildenbrand 2022-03-24 4189 * have to detect via the refcount if we're really the exclusive
c145e0b47c77eb David Hildenbrand 2022-03-24 4190 * owner. Try removing the extra reference from the local LRU
1fec6890bf2247 Matthew Wilcox (Oracle 2023-06-21 4191) * caches if required.
c145e0b47c77eb David Hildenbrand 2022-03-24 4192 */
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4193) if ((vmf->flags & FAULT_FLAG_WRITE) && folio == swapcache &&
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4194) !folio_test_ksm(folio) && !folio_test_lru(folio))
c145e0b47c77eb David Hildenbrand 2022-03-24 4195 lru_add_drain();
84d60fdd3733fb David Hildenbrand 2022-03-24 4196 }
5ad6468801d28c Hugh Dickins 2009-12-14 4197
4231f8425833b1 Kefeng Wang 2023-03-02 4198 folio_throttle_swaprate(folio, GFP_KERNEL);
8a9f3ccd24741b Balbir Singh 2008-02-07 4199
^1da177e4c3f41 Linus Torvalds 2005-04-16 4200 /*
8f4e2101fd7df9 Hugh Dickins 2005-10-29 4201 * Back out if somebody else already faulted in this pte.
^1da177e4c3f41 Linus Torvalds 2005-04-16 4202 */
82b0f8c39a3869 Jan Kara 2016-12-14 4203 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, vmf->address,
82b0f8c39a3869 Jan Kara 2016-12-14 4204 &vmf->ptl);
c33c794828f212 Ryan Roberts 2023-06-12 4205 if (unlikely(!vmf->pte || !pte_same(ptep_get(vmf->pte), vmf->orig_pte)))
b81074800b98ac Kirill Korotaev 2005-05-16 4206 goto out_nomap;
b81074800b98ac Kirill Korotaev 2005-05-16 4207
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4208) if (unlikely(!folio_test_uptodate(folio))) {
b81074800b98ac Kirill Korotaev 2005-05-16 4209 ret = VM_FAULT_SIGBUS;
b81074800b98ac Kirill Korotaev 2005-05-16 4210 goto out_nomap;
^1da177e4c3f41 Linus Torvalds 2005-04-16 4211 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 4212
b87b78172664e3 Chuanhua Han 2024-05-29 4213 nr_pages = 1;
b87b78172664e3 Chuanhua Han 2024-05-29 4214 page_idx = 0;
b87b78172664e3 Chuanhua Han 2024-05-29 4215 address = vmf->address;
b87b78172664e3 Chuanhua Han 2024-05-29 4216 ptep = vmf->pte;
b87b78172664e3 Chuanhua Han 2024-05-29 4217 if (folio_test_large(folio) && folio_test_swapcache(folio)) {
b87b78172664e3 Chuanhua Han 2024-05-29 4218 int nr = folio_nr_pages(folio);
b87b78172664e3 Chuanhua Han 2024-05-29 4219 unsigned long idx = folio_page_idx(folio, page);
b87b78172664e3 Chuanhua Han 2024-05-29 4220 unsigned long folio_start = address - idx * PAGE_SIZE;
b87b78172664e3 Chuanhua Han 2024-05-29 4221 unsigned long folio_end = folio_start + nr * PAGE_SIZE;
b87b78172664e3 Chuanhua Han 2024-05-29 4222 pte_t *folio_ptep;
b87b78172664e3 Chuanhua Han 2024-05-29 4223 pte_t folio_pte;
b87b78172664e3 Chuanhua Han 2024-05-29 4224
b87b78172664e3 Chuanhua Han 2024-05-29 4225 if (unlikely(folio_start < max(address & PMD_MASK, vma->vm_start)))
b87b78172664e3 Chuanhua Han 2024-05-29 4226 goto check_folio;
b87b78172664e3 Chuanhua Han 2024-05-29 4227 if (unlikely(folio_end > pmd_addr_end(address, vma->vm_end)))
b87b78172664e3 Chuanhua Han 2024-05-29 4228 goto check_folio;
b87b78172664e3 Chuanhua Han 2024-05-29 4229
b87b78172664e3 Chuanhua Han 2024-05-29 4230 folio_ptep = vmf->pte - idx;
b87b78172664e3 Chuanhua Han 2024-05-29 4231 folio_pte = ptep_get(folio_ptep);
b87b78172664e3 Chuanhua Han 2024-05-29 4232 if (!pte_same(folio_pte, pte_move_swp_offset(vmf->orig_pte, -idx)) ||
b87b78172664e3 Chuanhua Han 2024-05-29 4233 swap_pte_batch(folio_ptep, nr, folio_pte) != nr)
b87b78172664e3 Chuanhua Han 2024-05-29 4234 goto check_folio;
b87b78172664e3 Chuanhua Han 2024-05-29 4235
b87b78172664e3 Chuanhua Han 2024-05-29 4236 page_idx = idx;
b87b78172664e3 Chuanhua Han 2024-05-29 4237 address = folio_start;
b87b78172664e3 Chuanhua Han 2024-05-29 4238 ptep = folio_ptep;
b87b78172664e3 Chuanhua Han 2024-05-29 4239 nr_pages = nr;
b87b78172664e3 Chuanhua Han 2024-05-29 4240 entry = folio->swap;
b87b78172664e3 Chuanhua Han 2024-05-29 4241 page = &folio->page;
b87b78172664e3 Chuanhua Han 2024-05-29 4242 }
b87b78172664e3 Chuanhua Han 2024-05-29 4243
b87b78172664e3 Chuanhua Han 2024-05-29 4244 check_folio:
78fbe906cc900b David Hildenbrand 2022-05-09 4245 /*
78fbe906cc900b David Hildenbrand 2022-05-09 4246 * PG_anon_exclusive reuses PG_mappedtodisk for anon pages. A swap pte
78fbe906cc900b David Hildenbrand 2022-05-09 4247 * must never point at an anonymous page in the swapcache that is
78fbe906cc900b David Hildenbrand 2022-05-09 4248 * PG_anon_exclusive. Sanity check that this holds and especially, that
78fbe906cc900b David Hildenbrand 2022-05-09 4249 * no filesystem set PG_mappedtodisk on a page in the swapcache. Sanity
78fbe906cc900b David Hildenbrand 2022-05-09 4250 * check after taking the PT lock and making sure that nobody
78fbe906cc900b David Hildenbrand 2022-05-09 4251 * concurrently faulted in this page and set PG_anon_exclusive.
78fbe906cc900b David Hildenbrand 2022-05-09 4252 */
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4253) BUG_ON(!folio_test_anon(folio) && folio_test_mappedtodisk(folio));
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4254) BUG_ON(folio_test_anon(folio) && PageAnonExclusive(page));
78fbe906cc900b David Hildenbrand 2022-05-09 4255
1493a1913e34b0 David Hildenbrand 2022-05-09 4256 /*
1493a1913e34b0 David Hildenbrand 2022-05-09 4257 * Check under PT lock (to protect against concurrent fork() sharing
1493a1913e34b0 David Hildenbrand 2022-05-09 4258 * the swap entry concurrently) for certainly exclusive pages.
1493a1913e34b0 David Hildenbrand 2022-05-09 4259 */
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4260) if (!folio_test_ksm(folio)) {
1493a1913e34b0 David Hildenbrand 2022-05-09 4261 exclusive = pte_swp_exclusive(vmf->orig_pte);
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4262) if (folio != swapcache) {
1493a1913e34b0 David Hildenbrand 2022-05-09 4263 /*
1493a1913e34b0 David Hildenbrand 2022-05-09 4264 * We have a fresh page that is not exposed to the
1493a1913e34b0 David Hildenbrand 2022-05-09 4265 * swapcache -> certainly exclusive.
1493a1913e34b0 David Hildenbrand 2022-05-09 4266 */
1493a1913e34b0 David Hildenbrand 2022-05-09 4267 exclusive = true;
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4268) } else if (exclusive && folio_test_writeback(folio) &&
eacde32757c756 Miaohe Lin 2022-05-19 4269 data_race(si->flags & SWP_STABLE_WRITES)) {
1493a1913e34b0 David Hildenbrand 2022-05-09 4270 /*
1493a1913e34b0 David Hildenbrand 2022-05-09 4271 * This is tricky: not all swap backends support
1493a1913e34b0 David Hildenbrand 2022-05-09 4272 * concurrent page modifications while under writeback.
1493a1913e34b0 David Hildenbrand 2022-05-09 4273 *
1493a1913e34b0 David Hildenbrand 2022-05-09 4274 * So if we stumble over such a page in the swapcache
1493a1913e34b0 David Hildenbrand 2022-05-09 4275 * we must not set the page exclusive, otherwise we can
1493a1913e34b0 David Hildenbrand 2022-05-09 4276 * map it writable without further checks and modify it
1493a1913e34b0 David Hildenbrand 2022-05-09 4277 * while still under writeback.
1493a1913e34b0 David Hildenbrand 2022-05-09 4278 *
1493a1913e34b0 David Hildenbrand 2022-05-09 4279 * For these problematic swap backends, simply drop the
1493a1913e34b0 David Hildenbrand 2022-05-09 4280 * exclusive marker: this is perfectly fine as we start
1493a1913e34b0 David Hildenbrand 2022-05-09 4281 * writeback only if we fully unmapped the page and
1493a1913e34b0 David Hildenbrand 2022-05-09 4282 * there are no unexpected references on the page after
1493a1913e34b0 David Hildenbrand 2022-05-09 4283 * unmapping succeeded. After fully unmapped, no
1493a1913e34b0 David Hildenbrand 2022-05-09 4284 * further GUP references (FOLL_GET and FOLL_PIN) can
1493a1913e34b0 David Hildenbrand 2022-05-09 4285 * appear, so dropping the exclusive marker and mapping
1493a1913e34b0 David Hildenbrand 2022-05-09 4286 * it only R/O is fine.
1493a1913e34b0 David Hildenbrand 2022-05-09 4287 */
1493a1913e34b0 David Hildenbrand 2022-05-09 4288 exclusive = false;
1493a1913e34b0 David Hildenbrand 2022-05-09 4289 }
1493a1913e34b0 David Hildenbrand 2022-05-09 4290 }
1493a1913e34b0 David Hildenbrand 2022-05-09 4291
6dca4ac6fc91fd Peter Collingbourne 2023-05-22 4292 /*
6dca4ac6fc91fd Peter Collingbourne 2023-05-22 4293 * Some architectures may have to restore extra metadata to the page
6dca4ac6fc91fd Peter Collingbourne 2023-05-22 4294 * when reading from swap. This metadata may be indexed by swap entry
6dca4ac6fc91fd Peter Collingbourne 2023-05-22 4295 * so this must be called before swap_free().
6dca4ac6fc91fd Peter Collingbourne 2023-05-22 4296 */
f238b8c33c6738 Barry Song 2024-03-23 4297 arch_swap_restore(folio_swap(entry, folio), folio);
6dca4ac6fc91fd Peter Collingbourne 2023-05-22 4298
8c7c6e34a1256a KAMEZAWA Hiroyuki 2009-01-07 4299 /*
c145e0b47c77eb David Hildenbrand 2022-03-24 4300 * Remove the swap entry and conditionally try to free up the swapcache.
c145e0b47c77eb David Hildenbrand 2022-03-24 4301 * We're already holding a reference on the page but haven't mapped it
c145e0b47c77eb David Hildenbrand 2022-03-24 4302 * yet.
8c7c6e34a1256a KAMEZAWA Hiroyuki 2009-01-07 4303 */
b87b78172664e3 Chuanhua Han 2024-05-29 4304 swap_free_nr(entry, nr_pages);
a160e5377b55bc Matthew Wilcox (Oracle 2022-09-02 4305) if (should_try_to_free_swap(folio, vma, vmf->flags))
a160e5377b55bc Matthew Wilcox (Oracle 2022-09-02 4306) folio_free_swap(folio);
^1da177e4c3f41 Linus Torvalds 2005-04-16 4307
b87b78172664e3 Chuanhua Han 2024-05-29 4308 add_mm_counter(vma->vm_mm, MM_ANONPAGES, nr_pages);
b87b78172664e3 Chuanhua Han 2024-05-29 4309 add_mm_counter(vma->vm_mm, MM_SWAPENTS, -nr_pages);
^1da177e4c3f41 Linus Torvalds 2005-04-16 4310 pte = mk_pte(page, vma->vm_page_prot);
83e66de687b62a Barry Song 2024-06-02 4311 if (pte_swp_soft_dirty(vmf->orig_pte))
83e66de687b62a Barry Song 2024-06-02 4312 pte = pte_mksoft_dirty(pte);
83e66de687b62a Barry Song 2024-06-02 4313 if (pte_swp_uffd_wp(vmf->orig_pte))
83e66de687b62a Barry Song 2024-06-02 4314 pte = pte_mkuffd_wp(pte);
c145e0b47c77eb David Hildenbrand 2022-03-24 4315
c145e0b47c77eb David Hildenbrand 2022-03-24 4316 /*
1493a1913e34b0 David Hildenbrand 2022-05-09 4317 * Same logic as in do_wp_page(); however, optimize for pages that are
1493a1913e34b0 David Hildenbrand 2022-05-09 4318 * certainly not shared either because we just allocated them without
1493a1913e34b0 David Hildenbrand 2022-05-09 4319 * exposing them to the swapcache or because the swap entry indicates
1493a1913e34b0 David Hildenbrand 2022-05-09 4320 * exclusivity.
c145e0b47c77eb David Hildenbrand 2022-03-24 4321 */
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4322) if (!folio_test_ksm(folio) &&
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4323) (exclusive || folio_ref_count(folio) == 1)) {
83e66de687b62a Barry Song 2024-06-02 4324 if ((vma->vm_flags & VM_WRITE) && !userfaultfd_pte_wp(vma, pte) &&
6d3fd7a399ad57 Barry Song 2024-06-08 4325 !pte_needs_soft_dirty_wp(vma, pte)) {
83e66de687b62a Barry Song 2024-06-02 4326 pte = pte_mkwrite(pte, vma);
6c287605fd5646 David Hildenbrand 2022-05-09 4327 if (vmf->flags & FAULT_FLAG_WRITE) {
83e66de687b62a Barry Song 2024-06-02 4328 pte = pte_mkdirty(pte);
82b0f8c39a3869 Jan Kara 2016-12-14 4329 vmf->flags &= ~FAULT_FLAG_WRITE;
6c287605fd5646 David Hildenbrand 2022-05-09 4330 }
83e66de687b62a Barry Song 2024-06-02 4331 }
14f9135d547060 David Hildenbrand 2022-05-09 4332 rmap_flags |= RMAP_EXCLUSIVE;
^1da177e4c3f41 Linus Torvalds 2005-04-16 4333 }
b87b78172664e3 Chuanhua Han 2024-05-29 4334 folio_ref_add(folio, nr_pages - 1);
b87b78172664e3 Chuanhua Han 2024-05-29 4335 flush_icache_pages(vma, page, nr_pages);
b87b78172664e3 Chuanhua Han 2024-05-29 4336 vmf->orig_pte = pte_advance_pfn(pte, page_idx);
0bcac06f27d752 Minchan Kim 2017-11-15 4337
0bcac06f27d752 Minchan Kim 2017-11-15 4338 /* ksm created a completely new copy */
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4339) if (unlikely(folio != swapcache && swapcache)) {
92493c3b92b1e7 Barry Song 2024-06-18 4340 folio_add_new_anon_rmap(folio, vma, address, RMAP_EXCLUSIVE);
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4341) folio_add_lru_vma(folio, vma);
db4fb1039a1973 Barry Song 2024-06-18 4342 } else if (!folio_test_anon(folio)) {
db4fb1039a1973 Barry Song 2024-06-18 4343 /*
db4fb1039a1973 Barry Song 2024-06-18 4344 * We currently only expect small !anon folios, which are either
db4fb1039a1973 Barry Song 2024-06-18 4345 * fully exclusive or fully shared. If we ever get large folios
db4fb1039a1973 Barry Song 2024-06-18 4346 * here, we have to be careful.
db4fb1039a1973 Barry Song 2024-06-18 4347 */
db4fb1039a1973 Barry Song 2024-06-18 4348 VM_WARN_ON_ONCE(folio_test_large(folio));
db4fb1039a1973 Barry Song 2024-06-18 4349 VM_WARN_ON_FOLIO(!folio_test_locked(folio), folio);
db4fb1039a1973 Barry Song 2024-06-18 4350 folio_add_new_anon_rmap(folio, vma, address, rmap_flags);
0bcac06f27d752 Minchan Kim 2017-11-15 4351 } else {
b87b78172664e3 Chuanhua Han 2024-05-29 4352 folio_add_anon_rmap_ptes(folio, page, nr_pages, vma, address,
b832a354d787bf David Hildenbrand 2023-12-20 4353 rmap_flags);
00501b531c4723 Johannes Weiner 2014-08-08 4354 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 4355
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4356) VM_BUG_ON(!folio_test_anon(folio) ||
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4357) (pte_write(pte) && !PageAnonExclusive(page)));
b87b78172664e3 Chuanhua Han 2024-05-29 4358 set_ptes(vma->vm_mm, address, ptep, pte, nr_pages);
b87b78172664e3 Chuanhua Han 2024-05-29 4359 arch_do_swap_page_nr(vma->vm_mm, vma, address,
b87b78172664e3 Chuanhua Han 2024-05-29 4360 pte, pte, nr_pages);
1eba86c096e35e Pasha Tatashin 2022-01-14 4361
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4362) folio_unlock(folio);
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4363) if (folio != swapcache && swapcache) {
4969c1192d15af Andrea Arcangeli 2010-09-09 4364 /*
4969c1192d15af Andrea Arcangeli 2010-09-09 4365 * Hold the lock to avoid the swap entry to be reused
4969c1192d15af Andrea Arcangeli 2010-09-09 4366 * until we take the PT lock for the pte_same() check
4969c1192d15af Andrea Arcangeli 2010-09-09 4367 * (to avoid false positives from pte_same). For
4969c1192d15af Andrea Arcangeli 2010-09-09 4368 * further safety release the lock after the swap_free
4969c1192d15af Andrea Arcangeli 2010-09-09 4369 * so that the swap count won't change under a
4969c1192d15af Andrea Arcangeli 2010-09-09 4370 * parallel locked swapcache.
4969c1192d15af Andrea Arcangeli 2010-09-09 4371 */
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4372) folio_unlock(swapcache);
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4373) folio_put(swapcache);
4969c1192d15af Andrea Arcangeli 2010-09-09 4374 }
c475a8ab625d56 Hugh Dickins 2005-06-21 4375
82b0f8c39a3869 Jan Kara 2016-12-14 4376 if (vmf->flags & FAULT_FLAG_WRITE) {
2994302bc8a171 Jan Kara 2016-12-14 4377 ret |= do_wp_page(vmf);
61469f1d51777f Hugh Dickins 2008-03-04 4378 if (ret & VM_FAULT_ERROR)
61469f1d51777f Hugh Dickins 2008-03-04 4379 ret &= VM_FAULT_ERROR;
^1da177e4c3f41 Linus Torvalds 2005-04-16 4380 goto out;
^1da177e4c3f41 Linus Torvalds 2005-04-16 4381 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 4382
^1da177e4c3f41 Linus Torvalds 2005-04-16 4383 /* No need to invalidate - it was non-present before */
b87b78172664e3 Chuanhua Han 2024-05-29 4384 update_mmu_cache_range(vmf, vma, address, ptep, nr_pages);
65500d234e74fc Hugh Dickins 2005-10-29 4385 unlock:
3db82b9374ca92 Hugh Dickins 2023-06-08 4386 if (vmf->pte)
82b0f8c39a3869 Jan Kara 2016-12-14 4387 pte_unmap_unlock(vmf->pte, vmf->ptl);
^1da177e4c3f41 Linus Torvalds 2005-04-16 4388 out:
13ddaf26be324a Kairui Song 2024-02-07 4389 /* Clear the swap cache pin for direct swapin after PTL unlock */
13ddaf26be324a Kairui Song 2024-02-07 4390 if (need_clear_cache)
13ddaf26be324a Kairui Song 2024-02-07 @4391 swapcache_clear(si, entry);
2799e77529c2a2 Miaohe Lin 2021-06-28 4392 if (si)
2799e77529c2a2 Miaohe Lin 2021-06-28 4393 put_swap_device(si);
^1da177e4c3f41 Linus Torvalds 2005-04-16 4394 return ret;
b81074800b98ac Kirill Korotaev 2005-05-16 4395 out_nomap:
3db82b9374ca92 Hugh Dickins 2023-06-08 4396 if (vmf->pte)
82b0f8c39a3869 Jan Kara 2016-12-14 4397 pte_unmap_unlock(vmf->pte, vmf->ptl);
bc43f75cd98158 Johannes Weiner 2009-04-30 4398 out_page:
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4399) folio_unlock(folio);
4779cb31c0ee3b Andi Kleen 2009-10-14 4400 out_release:
63ad4add382305 Matthew Wilcox (Oracle 2022-09-02 4401) folio_put(folio);
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4402) if (folio != swapcache && swapcache) {
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4403) folio_unlock(swapcache);
d4f9565ae598bd Matthew Wilcox (Oracle 2022-09-02 4404) folio_put(swapcache);
4969c1192d15af Andrea Arcangeli 2010-09-09 4405 }
13ddaf26be324a Kairui Song 2024-02-07 4406 if (need_clear_cache)
13ddaf26be324a Kairui Song 2024-02-07 4407 swapcache_clear(si, entry);
2799e77529c2a2 Miaohe Lin 2021-06-28 4408 if (si)
2799e77529c2a2 Miaohe Lin 2021-06-28 4409 put_swap_device(si);
65500d234e74fc Hugh Dickins 2005-10-29 4410 return ret;
^1da177e4c3f41 Linus Torvalds 2005-04-16 4411 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 4412
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
[-- Attachment #2: reproduce --]
[-- Type: text/plain, Size: 723 bytes --]
reproduce (this is a W=1 build):
git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git
git fetch akpm-mm mm-everything
git checkout akpm-mm/mm-everything
b4 shazam https://lore.kernel.org/r/20240629111010.230484-2-21cnbao@gmail.com
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=openrisc olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-13.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=openrisc SHELL=/bin/bash mm/
[-- Attachment #3: config --]
[-- Type: text/plain, Size: 24042 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/openrisc 6.10.0-rc5 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="or1k-linux-gcc (GCC) 13.2.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=130200
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=24100
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=24100
CONFIG_LLD_VERSION=0
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT=y
CONFIG_GCC_ASM_GOTO_OUTPUT_WORKAROUND=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=127
CONFIG_IRQ_WORK=y
#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_BUILD_SALT=""
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
# CONFIG_SYSVIPC is not set
# CONFIG_WATCH_QUEUE is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_USELIB is not set
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_SPARSE_IRQ=y
# end of IRQ subsystem
CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
#
# Timers subsystem
#
CONFIG_HZ_PERIODIC=y
# CONFIG_NO_HZ_IDLE is not set
# CONFIG_NO_HZ is not set
# CONFIG_HIGH_RES_TIMERS is not set
# end of Timers subsystem
#
# BPF subsystem
#
# CONFIG_BPF_SYSCALL is not set
# end of BPF subsystem
CONFIG_PREEMPT_NONE_BUILD=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting
#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_TINY_SRCU=y
# end of RCU Subsystem
# CONFIG_IKCONFIG is not set
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=17
#
# Scheduler features
#
# end of Scheduler features
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_GCC10_NO_ARRAY_BOUNDS=y
CONFIG_CC_NO_ARRAY_BOUNDS=y
CONFIG_GCC_NO_STRINGOP_OVERFLOW=y
CONFIG_CC_NO_STRINGOP_OVERFLOW=y
# CONFIG_CGROUPS is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_BOOT_CONFIG is not set
# CONFIG_INITRAMFS_PRESERVE_MTIME is not set
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_CACHESTAT_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_SELFTEST is not set
CONFIG_KALLSYMS_BASE_RELATIVE=y
#
# Kernel Performance Events And Counters
#
# end of Kernel Performance Events And Counters
# CONFIG_PROFILING is not set
#
# Kexec and crash features
#
# end of Kexec and crash features
# end of General setup
CONFIG_OPENRISC=y
CONFIG_CPU_BIG_ENDIAN=y
CONFIG_MMU=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_NO_IOPORT_MAP=y
CONFIG_GENERIC_CSUM=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
#
# Processor type and features
#
CONFIG_OR1K_1200=y
# CONFIG_DCACHE_WRITETHROUGH is not set
CONFIG_OPENRISC_BUILTIN_DTB=""
#
# Class II Instructions
#
# CONFIG_OPENRISC_HAVE_INST_FF1 is not set
# CONFIG_OPENRISC_HAVE_INST_FL1 is not set
# CONFIG_OPENRISC_HAVE_INST_MUL is not set
# CONFIG_OPENRISC_HAVE_INST_DIV is not set
# CONFIG_OPENRISC_HAVE_INST_CMOV is not set
# CONFIG_OPENRISC_HAVE_INST_ROR is not set
# CONFIG_OPENRISC_HAVE_INST_RORI is not set
# CONFIG_OPENRISC_HAVE_INST_SEXT is not set
# end of Class II Instructions
# CONFIG_SMP is not set
# CONFIG_FPU is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_OPENRISC_NO_SPR_SR_DSX is not set
# CONFIG_OPENRISC_HAVE_SHADOW_GPRS is not set
CONFIG_CMDLINE=""
#
# Debugging options
#
# CONFIG_JUMP_UPON_UNHANDLED_EXCEPTION is not set
# CONFIG_OPENRISC_ESR_EXCEPTION_BUG_CHECK is not set
# end of Debugging options
# end of Processor type and features
CONFIG_CPU_MITIGATIONS=y
#
# General architecture-dependent options
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_DMA_SET_UNCACHED=y
CONFIG_ARCH_HAS_DMA_CLEAR_UNCACHED=y
CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_MMU_GATHER_NO_RANGE=y
CONFIG_MMU_GATHER_MERGE_VMAS=y
CONFIG_MMU_LAZY_TLB_REFCOUNT=y
CONFIG_LTO_NONE=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_PGTABLE_LEVELS=2
CONFIG_HAVE_PAGE_SIZE_8KB=y
CONFIG_PAGE_SIZE_8KB=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_PAGE_SHIFT=13
# CONFIG_COMPAT_32BIT_TIME is not set
CONFIG_CPU_NO_EFFICIENT_FFS=y
#
# GCOV-based kernel profiling
#
# end of GCOV-based kernel profiling
CONFIG_FUNCTION_ALIGNMENT=0
# end of General architecture-dependent options
CONFIG_RT_MUTEXES=y
# CONFIG_MODULES is not set
CONFIG_BLOCK=y
# CONFIG_BLOCK_LEGACY_AUTOLOAD is not set
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_DEV_WRITE_MOUNTED is not set
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_WBT is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types
#
# IO Schedulers
#
# CONFIG_MQ_IOSCHED_DEADLINE is not set
# CONFIG_MQ_IOSCHED_KYBER is not set
# CONFIG_IOSCHED_BFQ is not set
# end of IO Schedulers
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
#
# Executable file formats
#
# CONFIG_BINFMT_ELF is not set
# CONFIG_BINFMT_SCRIPT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
# end of Executable file formats
#
# Memory Management options
#
# CONFIG_SWAP is not set
CONFIG_HAVE_ZSMALLOC=y
#
# Slab allocator options
#
CONFIG_SLUB=y
# CONFIG_SLAB_MERGE_DEFAULT is not set
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_RANDOM_KMALLOC_CACHES is not set
# end of Slab allocator options
# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_FLATMEM=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_COMPACTION is not set
# CONFIG_PAGE_REPORTING is not set
CONFIG_PCP_BATCH_SCALE_MAX=5
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CMA is not set
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_PERCPU_STATS is not set
#
# GUP_TEST needs to have DEBUG_FS enabled
#
# CONFIG_DMAPOOL_TEST is not set
# CONFIG_ANON_VMA_NAME is not set
# CONFIG_USERFAULTFD is not set
# CONFIG_LRU_GEN is not set
#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options
# CONFIG_NET is not set
#
# Device Drivers
#
CONFIG_HAVE_PCI=y
CONFIG_GENERIC_PCI_IOMAP=y
# CONFIG_PCI is not set
# CONFIG_PCCARD is not set
#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
# CONFIG_DEVTMPFS is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER is not set
# CONFIG_FW_LOADER_COMPRESS is not set
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader
CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_GENERIC_CPU_DEVICES=y
# CONFIG_FW_DEVLINK_SYNC_STATE_TIMEOUT is not set
# end of Generic Driver Options
#
# Bus devices
#
# CONFIG_MHI_BUS is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices
#
# Cache Drivers
#
# end of Cache Drivers
#
# Firmware Drivers
#
#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol
# CONFIG_GOOGLE_FIRMWARE is not set
#
# Qualcomm firmware drivers
#
# end of Qualcomm firmware drivers
#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers
# CONFIG_GNSS is not set
# CONFIG_MTD is not set
CONFIG_DTC=y
CONFIG_OF=y
# CONFIG_OF_UNITTEST is not set
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_KOBJ=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_IRQ=y
CONFIG_OF_RESERVED_MEM=y
# CONFIG_OF_OVERLAY is not set
# CONFIG_PARPORT is not set
# CONFIG_BLK_DEV is not set
#
# NVME Support
#
# CONFIG_NVME_FC is not set
# end of NVME Support
#
# Misc devices
#
# CONFIG_DUMMY_IRQ is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_SRAM is not set
# CONFIG_XILINX_SDFEC is not set
# CONFIG_OPEN_DICE is not set
# CONFIG_VCPU_STALL_DETECTOR is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# end of EEPROM support
#
# Texas Instruments shared transport line discipline
#
# end of Texas Instruments shared transport line discipline
#
# Altera FPGA firmware download module (requires I2C)
#
# CONFIG_ECHO is not set
# CONFIG_PVPANIC is not set
# end of Misc devices
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
# end of SCSI device support
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set
#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set
#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_LEGACY_TIOCSTI is not set
# CONFIG_LDISC_AUTOLOAD is not set
#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_UARTLITE is not set
# CONFIG_SERIAL_SIFIVE is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_CONEXANT_DIGICOLOR is not set
# CONFIG_SERIAL_SPRD is not set
# end of Serial drivers
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NULL_TTY is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_VIRTIO_CONSOLE is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_DEVMEM is not set
# CONFIG_TCG_TPM is not set
# CONFIG_XILLYBUS is not set
# end of Character devices
#
# I2C support
#
# CONFIG_I2C is not set
# end of I2C support
# CONFIG_I3C is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
# CONFIG_PPS is not set
#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK_OPTIONAL=y
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# end of PTP clock support
# CONFIG_PINCTRL is not set
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_OF_GPIO=y
CONFIG_GPIO_CDEV=y
# CONFIG_GPIO_CDEV_V1 is not set
#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_74XX_MMIO is not set
# CONFIG_GPIO_ALTERA is not set
# CONFIG_GPIO_CADENCE is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_FTGPIO010 is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_GRGPIO is not set
# CONFIG_GPIO_HLWD is not set
# CONFIG_GPIO_MB86S7X is not set
# CONFIG_GPIO_SIFIVE is not set
# CONFIG_GPIO_XILINX is not set
# CONFIG_GPIO_AMD_FCH is not set
# end of Memory mapped GPIO drivers
#
# MFD GPIO expanders
#
# end of MFD GPIO expanders
#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_LATCH is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_SIM is not set
# end of Virtual GPIO drivers
# CONFIG_W1 is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
# CONFIG_MFD_ATMEL_FLEXCOM is not set
# CONFIG_MFD_ATMEL_HLCDC is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_MFD_HI6421_PMIC is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TQMX86 is not set
# end of Multifunction device drivers
# CONFIG_REGULATOR is not set
# CONFIG_RC_CORE is not set
#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support
# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
#
# CONFIG_AUXDISPLAY is not set
# CONFIG_DRM is not set
#
# Frame buffer Devices
#
# CONFIG_FB is not set
# end of Frame buffer Devices
#
# Backlight & LCD device support
#
# CONFIG_LCD_CLASS_DEVICE is not set
# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
# end of Backlight & LCD device support
#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
# end of Console display driver support
# end of Graphics support
# CONFIG_SOUND is not set
# CONFIG_HID_SUPPORT is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_RTC_CLASS is not set
# CONFIG_DMADEVICES is not set
#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_DMABUF_HEAPS is not set
# end of DMABUF options
# CONFIG_UIO is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
# CONFIG_VIRTIO_MENU is not set
# CONFIG_VHOST_MENU is not set
#
# Microsoft Hyper-V guest support
#
# end of Microsoft Hyper-V guest support
# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
# CONFIG_GOLDFISH is not set
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
# CONFIG_COMMON_CLK_AXI_CLKGEN is not set
# CONFIG_COMMON_CLK_FIXED_MMIO is not set
# CONFIG_XILINX_VCU is not set
# CONFIG_COMMON_CLK_XLNX_CLKWZRD is not set
# CONFIG_HWSPINLOCK is not set
#
# Clock Source drivers
#
# end of Clock Source drivers
# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set
#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers
#
# Rpmsg drivers
#
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers
# CONFIG_SOUNDWIRE is not set
#
# SOC (System On Chip) specific Drivers
#
#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers
#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers
#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers
#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers
#
# i.MX SoC drivers
#
# end of i.MX SoC drivers
#
# Enable LiteX SoC Builder specific drivers
#
# CONFIG_LITEX_SOC_CONTROLLER is not set
# end of Enable LiteX SoC Builder specific drivers
# CONFIG_WPCM450_SOC is not set
#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers
# CONFIG_SOC_TI is not set
#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers
#
# PM Domains
#
#
# Amlogic PM Domains
#
# end of Amlogic PM Domains
#
# Broadcom PM Domains
#
# end of Broadcom PM Domains
#
# i.MX PM Domains
#
# end of i.MX PM Domains
#
# Qualcomm PM Domains
#
# end of Qualcomm PM Domains
# end of PM Domains
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_PWM is not set
#
# IRQ chip support
#
CONFIG_IRQCHIP=y
# CONFIG_AL_FIC is not set
CONFIG_OR1K_PIC=y
# CONFIG_XILINX_INTC is not set
# end of IRQ chip support
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set
#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms
# CONFIG_PHY_CADENCE_TORRENT is not set
# CONFIG_PHY_CADENCE_DPHY is not set
# CONFIG_PHY_CADENCE_DPHY_RX is not set
# CONFIG_PHY_CADENCE_SALVO is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# end of PHY Subsystem
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
# CONFIG_RAS is not set
#
# Android
#
# CONFIG_ANDROID_BINDER_IPC is not set
# end of Android
# CONFIG_DAX is not set
# CONFIG_NVMEM is not set
#
# HW tracing support
#
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
# end of HW tracing support
# CONFIG_FPGA is not set
# CONFIG_FSI is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers
#
# File systems
#
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_IOMAP=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_EXT4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_BCACHEFS_FS is not set
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY_USER is not set
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set
#
# Caches
#
# end of Caches
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
# end of CD-ROM/DVD Filesystems
#
# DOS/FAT/EXFAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS3_FS is not set
# CONFIG_NTFS_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
# CONFIG_TMPFS is not set
# CONFIG_CONFIGFS_FS is not set
# end of Pseudo filesystems
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NLS is not set
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
# CONFIG_HARDENED_USERCOPY is not set
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,bpf"
#
# Kernel hardening options
#
#
# Memory initialization
#
CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_BARE=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
# CONFIG_INIT_STACK_NONE is not set
# CONFIG_INIT_STACK_ALL_PATTERN is not set
CONFIG_INIT_STACK_ALL_ZERO=y
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization
#
# Hardening of kernel data structures
#
# CONFIG_LIST_HARDENED is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# end of Hardening of kernel data structures
CONFIG_RANDSTRUCT_NONE=y
# end of Kernel hardening options
# end of Security options
# CONFIG_CRYPTO is not set
#
# Library routines
#
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
# CONFIG_CORDIC is not set
# CONFIG_PRIME_NUMBERS is not set
CONFIG_RATIONAL=y
#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
# CONFIG_CRYPTO_LIB_CHACHA is not set
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1
# CONFIG_CRYPTO_LIB_POLY1305 is not set
# end of Crypto library routines
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC64_ROCKSOFT is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC64 is not set
# CONFIG_CRC4 is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_RANDOM32_SELFTEST is not set
# CONFIG_XZ_DEC is not set
CONFIG_HAS_IOMEM=y
CONFIG_HAS_DMA=y
CONFIG_DMA_DECLARE_COHERENT=y
CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE=y
CONFIG_DMA_NEED_SYNC=y
# CONFIG_DMA_API_DEBUG is not set
CONFIG_FORCE_NR_CPUS=y
CONFIG_GENERIC_ATOMIC64=y
# CONFIG_IRQ_POLL is not set
CONFIG_LIBFDT=y
CONFIG_STACKDEPOT=y
CONFIG_STACKDEPOT_MAX_FRAMES=64
CONFIG_SBITMAP=y
# CONFIG_LWQ_TEST is not set
# end of Library routines
CONFIG_GENERIC_IOREMAP=y
#
# Kernel hacking
#
#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
# CONFIG_PRINTK_CALLER is not set
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_DYNAMIC_DEBUG_CORE is not set
# CONFIG_SYMBOLIC_ERRNAME is not set
# end of printk and dmesg options
# CONFIG_DEBUG_KERNEL is not set
#
# Compile-time checks and compiler options
#
CONFIG_AS_HAS_NON_CONST_ULEB128=y
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
# CONFIG_FRAME_POINTER is not set
# end of Compile-time checks and compiler options
#
# Generic Kernel Debugging Instruments
#
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_DEBUG_FS is not set
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments
#
# Networking Debugging
#
# end of Networking Debugging
#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
CONFIG_SLUB_DEBUG=y
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_PAGE_POISONING is not set
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_MEM_ALLOC_PROFILING is not set
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# end of Memory Debugging
#
# Debug Oops, Lockups and Hangs
#
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
# end of Debug Oops, Lockups and Hangs
#
# Scheduler Debugging
#
# CONFIG_SCHEDSTATS is not set
# end of Scheduler Debugging
# CONFIG_DEBUG_TIMEKEEPING is not set
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_WW_MUTEX_SELFTEST is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)
# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
#
# Debug kernel data structures
#
# end of Debug kernel data structures
#
# RCU Debugging
#
# end of RCU Debugging
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_SAMPLES is not set
#
# openrisc Debugging
#
# end of openrisc Debugging
#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_RUNTIME_TESTING_MENU is not set
# end of Kernel Testing and Coverage
#
# Rust hacking
#
# end of Rust hacking
# end of Kernel hacking
next prev parent reply other threads:[~2024-06-30 12:01 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-29 11:10 [PATCH RFC v4 0/2] mm: support mTHP swap-in for zRAM-like swapfile Barry Song
2024-06-29 11:10 ` [PATCH RFC v4 1/2] mm: swap: introduce swapcache_prepare_nr and swapcache_clear_nr for large folios swap-in Barry Song
2024-06-30 12:00 ` kernel test robot [this message]
2024-06-30 12:14 ` kernel test robot
2024-06-29 11:10 ` [PATCH RFC v4 2/2] mm: support large folios swapin as a whole for zRAM-like swapfile Barry Song
2024-07-01 13:52 ` Yosry Ahmed
2024-07-01 21:27 ` Barry Song
2024-07-03 6:31 ` [PATCH RFC v4 0/2] mm: support mTHP swap-in " Huang, Ying
2024-07-03 7:58 ` Barry Song
2024-07-03 8:32 ` Barry Song
2024-07-04 1:40 ` Huang, Ying
2024-07-04 10:23 ` Barry Song
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