mmotm 2020-05-11-15-43 uploaded

mmotm 2020-05-11-15-43 uploaded

[Andrew Morton]

The mm-of-the-moment snapshot 2020-05-11-15-43 has been uploaded to

   http://www.ozlabs.org/~akpm/mmotm/

mmotm-readme.txt says

README for mm-of-the-moment:

http://www.ozlabs.org/~akpm/mmotm/

This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
more than once a week.

You will need quilt to apply these patches to the latest Linus release (5.x
or 5.x-rcY).  The series file is in broken-out.tar.gz and is duplicated in
http://ozlabs.org/~akpm/mmotm/series

The file broken-out.tar.gz contains two datestamp files: .DATE and
.DATE-yyyy-mm-dd-hh-mm-ss.  Both contain the string yyyy-mm-dd-hh-mm-ss,
followed by the base kernel version against which this patch series is to
be applied.

This tree is partially included in linux-next.  To see which patches are
included in linux-next, consult the `series' file.  Only the patches
within the #NEXT_PATCHES_START/#NEXT_PATCHES_END markers are included in
linux-next.


A full copy of the full kernel tree with the linux-next and mmotm patches
already applied is available through git within an hour of the mmotm
release.  Individual mmotm releases are tagged.  The master branch always
points to the latest release, so it's constantly rebasing.

	https://github.com/hnaz/linux-mm

The directory http://www.ozlabs.org/~akpm/mmots/ (mm-of-the-second)
contains daily snapshots of the -mm tree.  It is updated more frequently
than mmotm, and is untested.

A git copy of this tree is also available at

	https://github.com/hnaz/linux-mm



This mmotm tree contains the following patches against 5.7-rc5:
(patches marked "*" will be included in linux-next)

* checkpatch-test-git_dir-changes.patch
* proc-kpageflags-prevent-an-integer-overflow-in-stable_page_flags.patch
* proc-kpageflags-do-not-use-uninitialized-struct-pages.patch
* kcov-cleanup-debug-messages.patch
* kcov-fix-potential-use-after-free-in-kcov_remote_start.patch
* kcov-move-t-kcov-assignments-into-kcov_start-stop.patch
* kcov-move-t-kcov_sequence-assignment.patch
* kcov-use-t-kcov_mode-as-enabled-indicator.patch
* kcov-collect-coverage-from-interrupts.patch
* usb-core-kcov-collect-coverage-from-usb-complete-callback.patch
* memcg-optimize-memorynuma_stat-like-memorystat.patch
* mm-memcg-fix-inconsistent-oom-event-behavior.patch
* epoll-call-final-ep_events_available-check-under-the-lock.patch
* mm-gup-fix-fixup_user_fault-on-multiple-retries.patch
* lib-lzo-fix-ambiguous-encoding-bug-in-lzo-rle.patch
* userfaultfd-fix-remap-event-with-mremap_dontunmap.patch
* ipc-utilc-sysvipc_find_ipc-incorrectly-updates-position-index.patch
* ipc-utilc-sysvipc_find_ipc-incorrectly-updates-position-index-fix.patch
* device-dax-dont-leak-kernel-memory-to-user-space-after-unloading-kmem.patch
* scripts-support-compiled-source-improved-precise.patch
* scripts-add-a-intermediate-file-for-make-gtags.patch
* squashfs-migrate-from-ll_rw_block-usage-to-bio.patch
* squashfs-migrate-from-ll_rw_block-usage-to-bio-fix.patch
* ocfs2-add-missing-annotation-for-dlm_empty_lockres.patch
* ocfs2-mount-shared-volume-without-ha-stack.patch
* drivers-tty-serial-sh-scic-suppress-uninitialized-var-warning.patch
* ramfs-support-o_tmpfile.patch
* vfs-track-per-sb-writeback-errors-and-report-them-to-syncfs.patch
* buffer-record-blockdev-write-errors-in-super_block-that-it-backs.patch
* kernel-watchdog-flush-all-printk-nmi-buffers-when-hardlockup-detected.patch
  mm.patch
* usercopy-mark-dma-kmalloc-caches-as-usercopy-caches.patch
* mm-slub-fix-corrupted-freechain-in-deactivate_slab.patch
* mm-slub-fix-corrupted-freechain-in-deactivate_slab-fix.patch
* slub-remove-userspace-notifier-for-cache-add-remove.patch
* slub-remove-kmalloc-under-list_lock-from-list_slab_objects.patch
* mm-slub-fix-stack-overruns-with-slub_stats.patch
* mm-slub-add-panic_on_error-to-the-debug-facilities.patch
* mm-slub-add-panic_on_error-to-the-debug-facilities-fix.patch
* mm-dump_page-do-not-crash-with-invalid-mapping-pointer.patch
* mm-move-readahead-prototypes-from-mmh.patch
* mm-return-void-from-various-readahead-functions.patch
* mm-ignore-return-value-of-readpages.patch
* mm-move-readahead-nr_pages-check-into-read_pages.patch
* mm-add-new-readahead_control-api.patch
* mm-use-readahead_control-to-pass-arguments.patch
* mm-rename-various-offset-parameters-to-index.patch
* mm-rename-readahead-loop-variable-to-i.patch
* mm-remove-page_offset-from-readahead-loop.patch
* mm-put-readahead-pages-in-cache-earlier.patch
* mm-add-readahead-address-space-operation.patch
* mm-move-end_index-check-out-of-readahead-loop.patch
* mm-add-page_cache_readahead_unbounded.patch
* mm-document-why-we-dont-set-pagereadahead.patch
* mm-use-memalloc_nofs_save-in-readahead-path.patch
* fs-convert-mpage_readpages-to-mpage_readahead.patch
* btrfs-convert-from-readpages-to-readahead.patch
* erofs-convert-uncompressed-files-from-readpages-to-readahead.patch
* erofs-convert-compressed-files-from-readpages-to-readahead.patch
* ext4-convert-from-readpages-to-readahead.patch
* ext4-pass-the-inode-to-ext4_mpage_readpages.patch
* f2fs-convert-from-readpages-to-readahead.patch
* f2fs-pass-the-inode-to-f2fs_mpage_readpages.patch
* fuse-convert-from-readpages-to-readahead.patch
* fuse-convert-from-readpages-to-readahead-fix.patch
* iomap-convert-from-readpages-to-readahead.patch
* mm-gupc-updating-the-documentation.patch
* mm-gupc-updating-the-documentation-fix.patch
* mm-swapfile-use-list_prevnext_entry-instead-of-open-coding.patch
* mm-swap_state-fix-a-data-race-in-swapin_nr_pages.patch
* mm-swap-properly-update-readahead-statistics-in-unuse_pte_range.patch
* mm-swapfilec-offset-is-only-used-when-there-is-more-slots.patch
* mm-swapfilec-explicitly-show-ssd-non-ssd-is-handled-mutually-exclusive.patch
* mm-swapfilec-remove-the-unnecessary-goto-for-ssd-case.patch
* mm-swapfilec-simplify-the-calculation-of-n_goal.patch
* mm-swapfilec-remove-the-extra-check-in-scan_swap_map_slots.patch
* mm-swapfilec-found_free-could-be-represented-by-tmp-max.patch
* mm-swapfilec-tmp-is-always-smaller-than-max.patch
* mm-swapfilec-omit-a-duplicate-code-by-compare-tmp-and-max-first.patch
* swap-try-to-scan-more-free-slots-even-when-fragmented.patch
* mm-swapfilec-classify-swap_map_xxx-to-make-it-more-readable.patch
* mm-swapfilec-classify-swap_map_xxx-to-make-it-more-readable-fix.patch
* mm-swapfilec-__swap_entry_free-always-free-1-entry.patch
* mm-memcg-add-workingset_restore-in-memorystat.patch
* mm-memcg-avoid-stale-protection-values-when-cgroup-is-above-protection.patch
* mm-memcg-decouple-elowmin-state-mutations-from-protection-checks.patch
* mm-memcontrol-simplify-value-comparison-between-count-and-limit.patch
* mm-fix-numa-node-file-count-error-in-replace_page_cache.patch
* mm-memcontrol-fix-stat-corrupting-race-in-charge-moving.patch
* mm-memcontrol-drop-compound-parameter-from-memcg-charging-api.patch
* mm-shmem-remove-rare-optimization-when-swapin-races-with-hole-punching.patch
* mm-memcontrol-move-out-cgroup-swaprate-throttling.patch
* mm-memcontrol-convert-page-cache-to-a-new-mem_cgroup_charge-api.patch
* mm-memcontrol-prepare-uncharging-for-removal-of-private-page-type-counters.patch
* mm-memcontrol-prepare-move_account-for-removal-of-private-page-type-counters.patch
* mm-memcontrol-prepare-cgroup-vmstat-infrastructure-for-native-anon-counters.patch
* mm-memcontrol-switch-to-native-nr_file_pages-and-nr_shmem-counters.patch
* mm-memcontrol-switch-to-native-nr_anon_mapped-counter.patch
* mm-memcontrol-switch-to-native-nr_anon_thps-counter.patch
* mm-memcontrol-convert-anon-and-file-thp-to-new-mem_cgroup_charge-api.patch
* mm-memcontrol-drop-unused-try-commit-cancel-charge-api.patch
* mm-memcontrol-prepare-swap-controller-setup-for-integration.patch
* mm-memcontrol-make-swap-tracking-an-integral-part-of-memory-control.patch
* mm-memcontrol-charge-swapin-pages-on-instantiation.patch
* mm-memcontrol-document-the-new-swap-control-behavior.patch
* mm-memcontrol-delete-unused-lrucare-handling.patch
* mm-memcontrol-update-page-mem_cgroup-stability-rules.patch
* memcg-expose-root-cgroups-memorystat.patch
* h8300-remove-usage-of-__arch_use_5level_hack.patch
* arm-add-support-for-folded-p4d-page-tables.patch
* arm-add-support-for-folded-p4d-page-tables-fix.patch
* arm64-add-support-for-folded-p4d-page-tables.patch
* arm64-add-support-for-folded-p4d-page-tables-fix.patch
* hexagon-remove-__arch_use_5level_hack.patch
* ia64-add-support-for-folded-p4d-page-tables.patch
* nios2-add-support-for-folded-p4d-page-tables.patch
* openrisc-add-support-for-folded-p4d-page-tables.patch
* powerpc-add-support-for-folded-p4d-page-tables.patch
* powerpc-add-support-for-folded-p4d-page-tables-fix.patch
* sh-fault-modernize-printing-of-kernel-messages.patch
* sh-drop-__pxd_offset-macros-that-duplicate-pxd_index-ones.patch
* sh-add-support-for-folded-p4d-page-tables.patch
* unicore32-remove-__arch_use_5level_hack.patch
* asm-generic-remove-pgtable-nop4d-hackh.patch
* mm-remove-__arch_has_5level_hack-and-include-asm-generic-5level-fixuph.patch
* mm-gupc-further-document-vma_permits_fault.patch
* proc-pid-smaps-add-pmd-migration-entry-parsing.patch
* mm-mmap-fix-the-adjusted-length-error.patch
* mm-memory-remove-unnecessary-pte_devmap-case-in-copy_one_pte.patch
* x86-hyperv-use-vmalloc_exec-for-the-hypercall-page.patch
* x86-fix-vmap-arguments-in-map_irq_stack.patch
* staging-android-ion-use-vmap-instead-of-vm_map_ram.patch
* staging-media-ipu3-use-vmap-instead-of-reimplementing-it.patch
* dma-mapping-use-vmap-insted-of-reimplementing-it.patch
* powerpc-add-an-ioremap_phb-helper.patch
* powerpc-remove-__ioremap_at-and-__iounmap_at.patch
* mm-remove-__get_vm_area.patch
* mm-unexport-unmap_kernel_range_noflush.patch
* mm-rename-config_pgtable_mapping-to-config_zsmalloc_pgtable_mapping.patch
* mm-only-allow-page-table-mappings-for-built-in-zsmalloc.patch
* mm-pass-addr-as-unsigned-long-to-vb_free.patch
* mm-remove-vmap_page_range_noflush-and-vunmap_page_range.patch
* mm-rename-vmap_page_range-to-map_kernel_range.patch
* mm-dont-return-the-number-of-pages-from-map_kernel_range_noflush.patch
* mm-remove-map_vm_range.patch
* mm-remove-unmap_vmap_area.patch
* mm-remove-the-prot-argument-from-vm_map_ram.patch
* mm-enforce-that-vmap-cant-map-pages-executable.patch
* gpu-drm-remove-the-powerpc-hack-in-drm_legacy_sg_alloc.patch
* mm-remove-the-pgprot-argument-to-__vmalloc.patch
* mm-remove-the-prot-argument-to-__vmalloc_node.patch
* mm-remove-both-instances-of-__vmalloc_node_flags.patch
* mm-remove-__vmalloc_node_flags_caller.patch
* mm-remove-__vmalloc_node_flags_caller-fix.patch
* mm-switch-the-test_vmalloc-module-to-use-__vmalloc_node.patch
* mm-switch-the-test_vmalloc-module-to-use-__vmalloc_node-fix.patch
* mm-switch-the-test_vmalloc-module-to-use-__vmalloc_node-fix-fix.patch
* mm-remove-vmalloc_user_node_flags.patch
* mm-remove-vmalloc_user_node_flags-fix.patch
* arm64-use-__vmalloc_node-in-arch_alloc_vmap_stack.patch
* powerpc-use-__vmalloc_node-in-alloc_vm_stack.patch
* s390-use-__vmalloc_node-in-stack_alloc.patch
* mm-init-report-kasan-tag-information-stored-in-page-flags.patch
* kasan-stop-tests-being-eliminated-as-dead-code-with-fortify_source.patch
* kasan-stop-tests-being-eliminated-as-dead-code-with-fortify_source-v4.patch
* stringh-fix-incompatibility-between-fortify_source-and-kasan.patch
* mm-clarify-__gfp_memalloc-usage.patch
* mm-memblock-replace-dereferences-of-memblock_regionnid-with-api-calls.patch
* mm-make-early_pfn_to_nid-and-related-defintions-close-to-each-other.patch
* mm-remove-config_have_memblock_node_map-option.patch
* mm-free_area_init-use-maximal-zone-pfns-rather-than-zone-sizes.patch
* mm-use-free_area_init-instead-of-free_area_init_nodes.patch
* alpha-simplify-detection-of-memory-zone-boundaries.patch
* arm-simplify-detection-of-memory-zone-boundaries.patch
* arm64-simplify-detection-of-memory-zone-boundaries-for-uma-configs.patch
* csky-simplify-detection-of-memory-zone-boundaries.patch
* m68k-mm-simplify-detection-of-memory-zone-boundaries.patch
* parisc-simplify-detection-of-memory-zone-boundaries.patch
* sparc32-simplify-detection-of-memory-zone-boundaries.patch
* unicore32-simplify-detection-of-memory-zone-boundaries.patch
* xtensa-simplify-detection-of-memory-zone-boundaries.patch
* mm-memmap_init-iterate-over-memblock-regions-rather-that-check-each-pfn.patch
* mm-memmap_init-iterate-over-memblock-regions-rather-that-check-each-pfn-fix.patch
* mm-remove-early_pfn_in_nid-and-config_nodes_span_other_nodes.patch
* mm-free_area_init-allow-defining-max_zone_pfn-in-descending-order.patch
* mm-free_area_init-allow-defining-max_zone_pfn-in-descending-order-fix.patch
* mm-free_area_init-allow-defining-max_zone_pfn-in-descending-order-fix-2.patch
* mm-rename-free_area_init_node-to-free_area_init_memoryless_node.patch
* mm-clean-up-free_area_init_node-and-its-helpers.patch
* mm-simplify-find_min_pfn_with_active_regions.patch
* docs-vm-update-memory-models-documentation.patch
* mm-page_allocc-bad_-is-not-necessary-when-pagehwpoison.patch
* mm-page_allocc-bad_flags-is-not-necessary-for-bad_page.patch
* mm-page_allocc-rename-free_pages_check_bad-to-check_free_page_bad.patch
* mm-page_allocc-rename-free_pages_check-to-check_free_page.patch
* mm-page_allocc-extract-check__page_bad-common-part-to-page_bad_reason.patch
* mmpage_alloccma-conditionally-prefer-cma-pageblocks-for-movable-allocations.patch
* mmpage_alloccma-conditionally-prefer-cma-pageblocks-for-movable-allocations-fix.patch
* mm-call-touch_nmi_watchdog-on-max-order-boundaries-in-deferred-init.patch
* mm-initialize-deferred-pages-with-interrupts-enabled.patch
* mm-call-cond_resched-from-deferred_init_memmap.patch
* mm-remove-unused-free_bootmem_with_active_regions.patch
* mm-page_allocc-only-tune-sysctl_lowmem_reserve_ratio-value-once-when-changing-it.patch
* mm-page_allocc-clear-out-zone-lowmem_reserve-if-the-zone-is-empty.patch
* mm-vmstatc-do-not-show-lowmem-reserve-protection-information-of-empty-zone.patch
* mm-page_alloc-use-ac-high_zoneidx-for-classzone_idx.patch
* mm-page_alloc-integrate-classzone_idx-and-high_zoneidx.patch
* mm-page_allocc-use-node_mask_none-in-build_zonelists.patch
* mm-rename-gfpflags_to_migratetype-to-gfp_migratetype-for-same-convention.patch
* mm-reset-numa-stats-for-boot-pagesets.patch
* mm-reset-numa-stats-for-boot-pagesets-v3.patch
* mm-vmscanc-use-update_lru_size-in-update_lru_sizes.patch
* mm-vmscan-count-layzfree-pages-and-fix-nr_isolated_-mismatch.patch
* mm-vmscanc-change-prototype-for-shrink_page_list.patch
* mm-vmscan-update-the-comment-of-should_continue_reclaim.patch
* tools-vm-page_owner_sort-filter-out-unneeded-line.patch
* mm-mempolicy-fix-up-gup-usage-in-lookup_node.patch
* mm-memblock-fix-minor-typo-and-unclear-comment.patch
* hugetlb_cgroup-remove-unused-variable-i.patch
* khugepaged-add-self-test.patch
* khugepaged-add-self-test-fix.patch
* khugepaged-add-self-test-fix-2.patch
* khugepaged-add-self-test-fix-2-fix.patch
* khugepaged-do-not-stop-collapse-if-less-than-half-ptes-are-referenced.patch
* khugepaged-drain-all-lru-caches-before-scanning-pages.patch
* khugepaged-drain-lru-add-pagevec-after-swapin.patch
* khugepaged-allow-to-collapse-a-page-shared-across-fork.patch
* khugepaged-allow-to-collapse-pte-mapped-compound-pages.patch
* thp-change-cow-semantics-for-anon-thp.patch
* khugepaged-introduce-max_ptes_shared-tunable.patch
* khugepaged-introduce-max_ptes_shared-tunable-fix.patch
* hugetlbfs-add-arch_hugetlb_valid_size.patch
* hugetlbfs-move-hugepagesz=-parsing-to-arch-independent-code.patch
* hugetlbfs-remove-hugetlb_add_hstate-warning-for-existing-hstate.patch
* hugetlbfs-remove-hugetlb_add_hstate-warning-for-existing-hstate-fix.patch
* hugetlbfs-clean-up-command-line-processing.patch
* hugetlbfs-move-hugepagesz=-parsing-to-arch-independent-code-fix.patch
* mm-hugetlb-avoid-unnecessary-check-on-pud-and-pmd-entry-in-huge_pte_offset.patch
* arm64-mm-drop-__have_arch_huge_ptep_get.patch
* mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range.patch
* mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags.patch
* arch-kmap-remove-bug_on.patch
* arch-xtensa-move-kmap-build-bug-out-of-the-way.patch
* arch-kmap-remove-redundant-arch-specific-kmaps.patch
* arch-kunmap-remove-duplicate-kunmap-implementations.patch
* arch-kunmap-remove-duplicate-kunmap-implementations-fix.patch
* x86powerpcmicroblaze-kmap-move-preempt-disable.patch
* arch-kmap_atomic-consolidate-duplicate-code.patch
* arch-kmap_atomic-consolidate-duplicate-code-checkpatch-fixes.patch
* arch-kunmap_atomic-consolidate-duplicate-code.patch
* arch-kunmap_atomic-consolidate-duplicate-code-checkpatch-fixes.patch
* arch-kmap-ensure-kmap_prot-visibility.patch
* arch-kmap-dont-hard-code-kmap_prot-values.patch
* arch-kmap-define-kmap_atomic_prot-for-all-archs.patch
* drm-remove-drm-specific-kmap_atomic-code.patch
* kmap-remove-kmap_atomic_to_page.patch
* parisc-kmap-remove-duplicate-kmap-code.patch
* sparc-remove-unnecessary-includes.patch
* kmap-consolidate-kmap_prot-definitions.patch
* kmap-consolidate-kmap_prot-definitions-checkpatch-fixes.patch
* mm-thp-dont-need-drain-lru-cache-when-splitting-and-mlocking-thp.patch
* powerpc-mm-drop-platform-defined-pmd_mknotpresent.patch
* mm-thp-rename-pmd_mknotpresent-as-pmd_mknotvalid.patch
* mm-thp-rename-pmd_mknotpresent-as-pmd_mkinvalid-v2.patch
* drivers-base-memoryc-cache-memory-blocks-in-xarray-to-accelerate-lookup.patch
* drivers-base-memoryc-cache-memory-blocks-in-xarray-to-accelerate-lookup-fix.patch
* mm-add-debug_wx-support.patch
* mm-add-debug_wx-support-fix.patch
* mm-add-debug_wx-support-fix-2.patch
* mm-add-debug_wx-support-fix-3.patch
* riscv-support-debug_wx.patch
* riscv-support-debug_wx-fix.patch
* x86-mm-use-arch_has_debug_wx-instead-of-arch-defined.patch
* arm64-mm-use-arch_has_debug_wx-instead-of-arch-defined.patch
* mm-add-kvfree_sensitive-for-freeing-sensitive-data-objects.patch
* mm-memory_hotplug-refrain-from-adding-memory-into-an-impossible-node.patch
* powerpc-pseries-hotplug-memory-stop-checking-is_mem_section_removable.patch
* mm-memory_hotplug-remove-is_mem_section_removable.patch
* mm-memory_hotplug-set-node_start_pfn-of-hotadded-pgdat-to-0.patch
* mm-memory_hotplug-handle-memblocks-only-with-config_arch_keep_memblock.patch
* mm-memory_hotplug-introduce-add_memory_driver_managed.patch
* kexec_file-dont-place-kexec-images-on-ioresource_mem_driver_managed.patch
* device-dax-add-memory-via-add_memory_driver_managed.patch
* mm-replace-zero-length-array-with-flexible-array-member.patch
* mm-replace-zero-length-array-with-flexible-array-member-fix.patch
* mm-memory_hotplug-fix-a-typo-in-comment-recoreded-recorded.patch
* mm-ksm-fix-a-typo-in-comment-alreaady-already.patch
* mm-ksm-fix-a-typo-in-comment-alreaady-already-v2.patch
* mm-mmap-fix-a-typo-in-comment-compatbility-compatibility.patch
* mm-hugetlb-fix-a-typo-in-comment-manitained-maintained.patch
* mm-hugetlb-fix-a-typo-in-comment-manitained-maintained-v2.patch
* mm-hugetlb-fix-a-typo-in-comment-manitained-maintained-v2-checkpatch-fixes.patch
* mm-vmsan-fix-some-typos-in-comment.patch
* mm-compaction-fix-a-typo-in-comment-pessemistic-pessimistic.patch
* mm-memblock-fix-a-typo-in-comment-implict-implicit.patch
* mm-list_lru-fix-a-typo-in-comment-numbesr-numbers.patch
* mm-filemap-fix-a-typo-in-comment-unneccssary-unnecessary.patch
* mm-frontswap-fix-some-typos-in-frontswapc.patch
* mm-memcg-fix-some-typos-in-memcontrolc.patch
* mm-fix-a-typo-in-comment-strucure-structure.patch
* mm-slub-fix-a-typo-in-comment-disambiguiation-disambiguation.patch
* mm-sparse-fix-a-typo-in-comment-convienence-convenience.patch
* mm-page-writeback-fix-a-typo-in-comment-effictive-effective.patch
* mm-memory-fix-a-typo-in-comment-attampt-attempt.patch
* mm-use-false-for-bool-variable.patch
* mm-return-true-in-cpupid_pid_unset.patch
* zcomp-use-array_size-for-backends-list.patch
* info-task-hung-in-generic_file_write_iter.patch
* info-task-hung-in-generic_file_write-fix.patch
* kernel-hung_taskc-monitor-killed-tasks.patch
* proc-rename-catch-function-argument.patch
* x86-mm-define-mm_p4d_folded.patch
* mm-debug-add-tests-validating-architecture-page-table-helpers.patch
* mm-debug-add-tests-validating-architecture-page-table-helpers-v17.patch
* mm-debug-add-tests-validating-architecture-page-table-helpers-v18.patch
* userc-make-uidhash_table-static.patch
* dynamic_debug-add-an-option-to-enable-dynamic-debug-for-modules-only.patch
* dynamic_debug-add-an-option-to-enable-dynamic-debug-for-modules-only-v2.patch
* get_maintainer-add-email-addresses-from-yaml-files.patch
* bitops-avoid-clang-shift-count-overflow-warnings.patch
* lib-math-avoid-trailing-n-hidden-in-pr_fmt.patch
* lib-add-might_fault-to-strncpy_from_user.patch
* lib-optimize-cpumask_local_spread.patch
* lib-test_lockupc-make-test_inode-static.patch
* lib-zlib-remove-outdated-and-incorrect-pre-increment-optimization.patch
* percpu_ref-use-a-more-common-logging-style.patch
* lib-flex_proportionsc-cleanup-__fprop_inc_percpu_max.patch
* checkpatch-additional-maintainer-section-entry-ordering-checks.patch
* checkpatch-look-for-c99-comments-in-ctx_locate_comment.patch
* checkpatch-disallow-git-and-file-fix.patch
* checkpatch-use-patch-subject-when-reading-from-stdin.patch
* checkpatch-use-patch-subject-when-reading-from-stdin-fix.patch
* fs-binfmt_elf-remove-redundant-elf_map-ifndef.patch
* elfnote-mark-all-note-sections-shf_alloc.patch
* fs-binfmt_elfc-allocate-initialized-memory-in-fill_thread_core_info.patch
* fat-dont-allow-to-mount-if-the-fat-length-==-0.patch
* fat-improve-the-readahead-for-fat-entries.patch
* fs-seq_filec-seq_read-update-pr_info_ratelimited.patch
* seq_file-introduce-define_seq_attribute-helper-macro.patch
* seq_file-introduce-define_seq_attribute-helper-macro-checkpatch-fixes.patch
* mm-vmstat-convert-to-use-define_seq_attribute-macro.patch
* kernel-kprobes-convert-to-use-define_seq_attribute-macro.patch
* exec-simplify-the-copy_strings_kernel-calling-convention.patch
* exec-open-code-copy_string_kernel.patch
* umh-fix-refcount-underflow-in-fork_usermode_blob.patch
* rapidio-avoid-data-race-between-file-operation-callbacks-and-mport_cdev_add.patch
* kernel-relayc-fix-read_pos-error-when-multiple-readers.patch
* aio-simplify-read_events.patch
* add-kernel-config-option-for-twisting-kernel-behavior.patch
* twist-allow-disabling-k_spec-function-in-drivers-tty-vt-keyboardc.patch
* twist-add-option-for-selecting-twist-options-for-syzkallers-testing.patch
* selftests-x86-pkeys-move-selftests-to-arch-neutral-directory.patch
* selftests-vm-pkeys-rename-all-references-to-pkru-to-a-generic-name.patch
* selftests-vm-pkeys-move-generic-definitions-to-header-file.patch
* selftests-vm-pkeys-move-some-definitions-to-arch-specific-header.patch
* selftests-vm-pkeys-make-gcc-check-arguments-of-sigsafe_printf.patch
* selftests-vm-pkeys-use-sane-types-for-pkey-register.patch
* selftests-vm-pkeys-add-helpers-for-pkey-bits.patch
* selftests-vm-pkeys-fix-pkey_disable_clear.patch
* selftests-vm-pkeys-fix-assertion-in-pkey_disable_set-clear.patch
* selftests-vm-pkeys-fix-alloc_random_pkey-to-make-it-really-random.patch
* selftests-vm-pkeys-use-the-correct-huge-page-size.patch
* selftests-vm-pkeys-introduce-generic-pkey-abstractions.patch
* selftests-vm-pkeys-introduce-powerpc-support.patch
* selftests-vm-pkeys-introduce-powerpc-support-fix.patch
* selftests-vm-pkeys-fix-number-of-reserved-powerpc-pkeys.patch
* selftests-vm-pkeys-fix-assertion-in-test_pkey_alloc_exhaust.patch
* selftests-vm-pkeys-improve-checks-to-determine-pkey-support.patch
* selftests-vm-pkeys-associate-key-on-a-mapped-page-and-detect-access-violation.patch
* selftests-vm-pkeys-associate-key-on-a-mapped-page-and-detect-write-violation.patch
* selftests-vm-pkeys-detect-write-violation-on-a-mapped-access-denied-key-page.patch
* selftests-vm-pkeys-introduce-a-sub-page-allocator.patch
* selftests-vm-pkeys-test-correct-behaviour-of-pkey-0.patch
* selftests-vm-pkeys-override-access-right-definitions-on-powerpc.patch
* selftests-vm-pkeys-override-access-right-definitions-on-powerpc-fix.patch
* selftests-vm-pkeys-use-the-correct-page-size-on-powerpc.patch
* selftests-vm-pkeys-fix-multilib-builds-for-x86.patch
* tools-testing-selftests-vm-remove-duplicate-headers.patch
* ubsan-fix-gcc-10-warnings.patch
* ipc-msg-add-missing-annotation-for-freeque.patch
* ipc-use-a-work-queue-to-free_ipc.patch
* ipc-convert-ipcs_idr-to-xarray.patch
* ipc-convert-ipcs_idr-to-xarray-update.patch
  linux-next.patch
  linux-next-rejects.patch
* xarrayh-correct-return-code-for-xa_store_bhirq.patch
* kernel-sysctl-support-setting-sysctl-parameters-from-kernel-command-line.patch
* kernel-sysctl-support-handling-command-line-aliases.patch
* kernel-hung_task-convert-hung_task_panic-boot-parameter-to-sysctl.patch
* tools-testing-selftests-sysctl-sysctlsh-support-config_test_sysctl=y.patch
* lib-test_sysctl-support-testing-of-sysctl-boot-parameter.patch
* kernel-watchdogc-convert-soft-hardlockup-boot-parameters-to-sysctl-aliases.patch
* kernel-hung_taskc-introduce-sysctl-to-print-all-traces-when-a-hung-task-is-detected.patch
* panic-add-sysctl-to-dump-all-cpus-backtraces-on-oops-event.patch
* stacktrace-cleanup-inconsistent-variable-type.patch
* amdgpu-a-null-mm-does-not-mean-a-thread-is-a-kthread.patch
* kernel-move-use_mm-unuse_mm-to-kthreadc.patch
* kernel-move-use_mm-unuse_mm-to-kthreadc-v2.patch
* kernel-better-document-the-use_mm-unuse_mm-api-contract.patch
* kernel-better-document-the-use_mm-unuse_mm-api-contract-v2.patch
* kernel-better-document-the-use_mm-unuse_mm-api-contract-v2-fix.patch
* kernel-set-user_ds-in-kthread_use_mm.patch
* mm-kmemleak-silence-kcsan-splats-in-checksum.patch
* kallsyms-printk-add-loglvl-to-print_ip_sym.patch
* alpha-add-show_stack_loglvl.patch
* arc-add-show_stack_loglvl.patch
* arm-asm-add-loglvl-to-c_backtrace.patch
* arm-add-loglvl-to-unwind_backtrace.patch
* arm-add-loglvl-to-dump_backtrace.patch
* arm-wire-up-dump_backtrace_entrystm.patch
* arm-add-show_stack_loglvl.patch
* arm64-add-loglvl-to-dump_backtrace.patch
* arm64-add-show_stack_loglvl.patch
* c6x-add-show_stack_loglvl.patch
* csky-add-show_stack_loglvl.patch
* h8300-add-show_stack_loglvl.patch
* hexagon-add-show_stack_loglvl.patch
* ia64-pass-log-level-as-arg-into-ia64_do_show_stack.patch
* ia64-add-show_stack_loglvl.patch
* m68k-add-show_stack_loglvl.patch
* microblaze-add-loglvl-to-microblaze_unwind_inner.patch
* microblaze-add-loglvl-to-microblaze_unwind.patch
* microblaze-add-show_stack_loglvl.patch
* mips-add-show_stack_loglvl.patch
* nds32-add-show_stack_loglvl.patch
* nios2-add-show_stack_loglvl.patch
* openrisc-add-show_stack_loglvl.patch
* parisc-add-show_stack_loglvl.patch
* powerpc-add-show_stack_loglvl.patch
* riscv-add-show_stack_loglvl.patch
* s390-add-show_stack_loglvl.patch
* sh-add-loglvl-to-dump_mem.patch
* sh-remove-needless-printk.patch
* sh-add-loglvl-to-printk_address.patch
* sh-add-loglvl-to-show_trace.patch
* sh-add-show_stack_loglvl.patch
* sparc-add-show_stack_loglvl.patch
* um-sysrq-remove-needless-variable-sp.patch
* um-add-show_stack_loglvl.patch
* unicore32-remove-unused-pmode-argument-in-c_backtrace.patch
* unicore32-add-loglvl-to-c_backtrace.patch
* unicore32-add-show_stack_loglvl.patch
* x86-add-missing-const-qualifiers-for-log_lvl.patch
* x86-add-show_stack_loglvl.patch
* xtensa-add-loglvl-to-show_trace.patch
* xtensa-add-loglvl-to-show_trace-fix.patch
* xtensa-add-show_stack_loglvl.patch
* sysrq-use-show_stack_loglvl.patch
* x86-amd_gart-print-stacktrace-for-a-leak-with-kern_err.patch
* power-use-show_stack_loglvl.patch
* kdb-dont-play-with-console_loglevel.patch
* sched-print-stack-trace-with-kern_info.patch
* kernel-use-show_stack_loglvl.patch
* kernel-rename-show_stack_loglvl-=-show_stack.patch
* mm-frontswap-mark-various-intentional-data-races.patch
* mm-page_io-mark-various-intentional-data-races.patch
* mm-page_io-mark-various-intentional-data-races-v2.patch
* mm-swap_state-mark-various-intentional-data-races.patch
* mm-filemap-fix-a-data-race-in-filemap_fault.patch
* mm-swapfile-fix-and-annotate-various-data-races.patch
* mm-swapfile-fix-and-annotate-various-data-races-v2.patch
* mm-page_counter-fix-various-data-races-at-memsw.patch
* mm-memcontrol-fix-a-data-race-in-scan-count.patch
* mm-list_lru-fix-a-data-race-in-list_lru_count_one.patch
* mm-mempool-fix-a-data-race-in-mempool_free.patch
* mm-util-annotate-an-data-race-at-vm_committed_as.patch
* mm-rmap-annotate-a-data-race-at-tlb_flush_batched.patch
* mm-annotate-a-data-race-in-page_zonenum.patch
* mm-swap-annotate-data-races-for-lru_rotate_pvecs.patch
* net-zerocopy-use-vm_insert_pages-for-tcp-rcv-zerocopy.patch
* mm-mmapc-add-more-sanity-checks-to-get_unmapped_area.patch
* mm-mmapc-do-not-allow-mappings-outside-of-allowed-limits.patch
* mm-pass-task-and-mm-to-do_madvise.patch
* mm-introduce-external-memory-hinting-api.patch
* mm-introduce-external-memory-hinting-api-fix.patch
* mm-introduce-external-memory-hinting-api-fix-2.patch
* mm-introduce-external-memory-hinting-api-fix-2-fix.patch
* mm-check-fatal-signal-pending-of-target-process.patch
* pid-move-pidfd_get_pid-function-to-pidc.patch
* mm-support-both-pid-and-pidfd-for-process_madvise.patch
* mm-madvise-allow-ksm-hints-for-remote-api.patch
* mm-support-vector-address-ranges-for-process_madvise.patch
* mm-support-vector-address-ranges-for-process_madvise-fix.patch
* mm-support-vector-address-ranges-for-process_madvise-fix-fix.patch
* mm-support-vector-address-ranges-for-process_madvise-fix-fix-fix.patch
* mm-support-vector-address-ranges-for-process_madvise-fix-fix-fix-fix.patch
* mm-support-vector-address-ranges-for-process_madvise-fix-fix-fix-fix-fix.patch
* mm-remove-duplicated-include-from-madvisec.patch
* mm-expand-documentation-over-__read_mostly.patch
* doc-cgroup-update-note-about-conditions-when-oom-killer-is-invoked.patch
* doc-cgroup-update-note-about-conditions-when-oom-killer-is-invoked-fix.patch
* fix-read-buffer-overflow-in-delta-ipc.patch
  make-sure-nobodys-leaking-resources.patch
  releasing-resources-with-children.patch
  mutex-subsystem-synchro-test-module.patch
  kernel-forkc-export-kernel_thread-to-modules.patch
  workaround-for-a-pci-restoring-bug.patch

Re: mmotm 2020-05-11-15-43 uploaded (mm/memcontrol.c, huge pages)

[Johannes Weiner]

On Mon, May 11, 2020 at 09:41:24PM -0700, Randy Dunlap wrote:
> On 5/11/20 3:44 PM, Andrew Morton wrote:
> > The mm-of-the-moment snapshot 2020-05-11-15-43 has been uploaded to
> > 
> >    http://www.ozlabs.org/~akpm/mmotm/
> > 
> > mmotm-readme.txt says
> > 
> > README for mm-of-the-moment:
> > 
> > http://www.ozlabs.org/~akpm/mmotm/
> > 
> > This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
> > more than once a week.
> > 
> > You will need quilt to apply these patches to the latest Linus release (5.x
> > or 5.x-rcY).  The series file is in broken-out.tar.gz and is duplicated in
> > http://ozlabs.org/~akpm/mmotm/series
> > 
> > The file broken-out.tar.gz contains two datestamp files: .DATE and
> > .DATE-yyyy-mm-dd-hh-mm-ss.  Both contain the string yyyy-mm-dd-hh-mm-ss,
> > followed by the base kernel version against which this patch series is to
> > be applied.
> > 
> > This tree is partially included in linux-next.  To see which patches are
> > included in linux-next, consult the `series' file.  Only the patches
> > within the #NEXT_PATCHES_START/#NEXT_PATCHES_END markers are included in
> > linux-next.
> > 
> > 
> > A full copy of the full kernel tree with the linux-next and mmotm patches
> > already applied is available through git within an hour of the mmotm
> > release.  Individual mmotm releases are tagged.  The master branch always
> > points to the latest release, so it's constantly rebasing.
> > 
> > 	https://github.com/hnaz/linux-mm
> > 
> > The directory http://www.ozlabs.org/~akpm/mmots/ (mm-of-the-second)
> > contains daily snapshots of the -mm tree.  It is updated more frequently
> > than mmotm, and is untested.
> > 
> > A git copy of this tree is also available at
> > 
> > 	https://github.com/hnaz/linux-mm

Thanks for the report, Randy.

---

Randy reports:

> on x86_64:
> 
> In file included from ../arch/x86/include/asm/atomic.h:5:0,
>                  from ../include/linux/atomic.h:7,
>                  from ../include/linux/page_counter.h:5,
>                  from ../mm/memcontrol.c:25:
> ../mm/memcontrol.c: In function ‘memcg_stat_show’:
> ../include/linux/compiler.h:394:38: error: call to ‘__compiletime_assert_383’ declared with attribute error: BUILD_BUG failed
>   _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
>                                       ^
> ../include/linux/compiler.h:375:4: note: in definition of macro ‘__compiletime_assert’
>     prefix ## suffix();    \
>     ^~~~~~
> ../include/linux/compiler.h:394:2: note: in expansion of macro ‘_compiletime_assert’
>   _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
>   ^~~~~~~~~~~~~~~~~~~
> ../include/linux/build_bug.h:39:37: note: in expansion of macro ‘compiletime_assert’
>  #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
>                                      ^~~~~~~~~~~~~~~~~~
> ../include/linux/build_bug.h:59:21: note: in expansion of macro ‘BUILD_BUG_ON_MSG’
>  #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
>                      ^~~~~~~~~~~~~~~~
> ../include/linux/huge_mm.h:319:28: note: in expansion of macro ‘BUILD_BUG’
>  #define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; })

The THP page size macros are CONFIG_TRANSPARENT_HUGEPAGE only.

We already ifdef most THP-related code in memcg, but not these
particular stats. Memcg used to track the pages as they came in, and
PageTransHuge() + hpage_nr_pages() work when THP is not compiled in.

Switching to native vmstat counters, memcg doesn't see the pages, it
only gets a count of THPs. To translate that to bytes, it has to know
how big the THPs are - and that's only available for CONFIG_THP.

Add the necessary ifdefs. /proc/meminfo, smaps etc. also don't show
the THP counters when the feature is compiled out. The event counts
(THP_FAULT_ALLOC, THP_COLLAPSE_ALLOC) were already conditional also.

Style touchup: HPAGE_PMD_NR * PAGE_SIZE is silly. Use HPAGE_PMD_SIZE.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
---

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 738d071ba1ef..47c685088a2c 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1401,9 +1401,11 @@ static char *memory_stat_format(struct mem_cgroup *memcg)
 		       (u64)memcg_page_state(memcg, NR_WRITEBACK) *
 		       PAGE_SIZE);
 
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
 	seq_buf_printf(&s, "anon_thp %llu\n",
 		       (u64)memcg_page_state(memcg, NR_ANON_THPS) *
-		       HPAGE_PMD_NR * PAGE_SIZE);
+		       HPAGE_PMD_SIZE);
+#endif
 
 	for (i = 0; i < NR_LRU_LISTS; i++)
 		seq_buf_printf(&s, "%s %llu\n", lru_list_name(i),
@@ -3752,7 +3754,9 @@ static int memcg_numa_stat_show(struct seq_file *m, void *v)
 static const unsigned int memcg1_stats[] = {
 	NR_FILE_PAGES,
 	NR_ANON_MAPPED,
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
 	NR_ANON_THPS,
+#endif
 	NR_SHMEM,
 	NR_FILE_MAPPED,
 	NR_FILE_DIRTY,
@@ -3763,7 +3767,9 @@ static const unsigned int memcg1_stats[] = {
 static const char *const memcg1_stat_names[] = {
 	"cache",
 	"rss",
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
 	"rss_huge",
+#endif
 	"shmem",
 	"mapped_file",
 	"dirty",
@@ -3794,8 +3800,10 @@ static int memcg_stat_show(struct seq_file *m, void *v)
 		if (memcg1_stats[i] == MEMCG_SWAP && !do_memsw_account())
 			continue;
 		nr = memcg_page_state_local(memcg, memcg1_stats[i]);
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
 		if (memcg1_stats[i] == NR_ANON_THPS)
 			nr *= HPAGE_PMD_NR;
+#endif
 		seq_printf(m, "%s %lu\n", memcg1_stat_names[i], nr * PAGE_SIZE);
 	}
 

Re: mmotm 2020-05-11-15-43 uploaded (mm/memcontrol.c, huge pages)

[Randy Dunlap]

On 5/12/20 5:17 AM, Johannes Weiner wrote:

> 
> ---
> 
> Randy reports:
> 
>> on x86_64:
>>
>> In file included from ../arch/x86/include/asm/atomic.h:5:0,
>>                  from ../include/linux/atomic.h:7,
>>                  from ../include/linux/page_counter.h:5,
>>                  from ../mm/memcontrol.c:25:
>> ../mm/memcontrol.c: In function ‘memcg_stat_show’:
>> ../include/linux/compiler.h:394:38: error: call to ‘__compiletime_assert_383’ declared with attribute error: BUILD_BUG failed
>>   _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
>>                                       ^
>> ../include/linux/compiler.h:375:4: note: in definition of macro ‘__compiletime_assert’
>>     prefix ## suffix();    \
>>     ^~~~~~
>> ../include/linux/compiler.h:394:2: note: in expansion of macro ‘_compiletime_assert’
>>   _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
>>   ^~~~~~~~~~~~~~~~~~~
>> ../include/linux/build_bug.h:39:37: note: in expansion of macro ‘compiletime_assert’
>>  #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
>>                                      ^~~~~~~~~~~~~~~~~~
>> ../include/linux/build_bug.h:59:21: note: in expansion of macro ‘BUILD_BUG_ON_MSG’
>>  #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
>>                      ^~~~~~~~~~~~~~~~
>> ../include/linux/huge_mm.h:319:28: note: in expansion of macro ‘BUILD_BUG’
>>  #define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; })
> 
> The THP page size macros are CONFIG_TRANSPARENT_HUGEPAGE only.
> 
> We already ifdef most THP-related code in memcg, but not these
> particular stats. Memcg used to track the pages as they came in, and
> PageTransHuge() + hpage_nr_pages() work when THP is not compiled in.
> 
> Switching to native vmstat counters, memcg doesn't see the pages, it
> only gets a count of THPs. To translate that to bytes, it has to know
> how big the THPs are - and that's only available for CONFIG_THP.
> 
> Add the necessary ifdefs. /proc/meminfo, smaps etc. also don't show
> the THP counters when the feature is compiled out. The event counts
> (THP_FAULT_ALLOC, THP_COLLAPSE_ALLOC) were already conditional also.
> 
> Style touchup: HPAGE_PMD_NR * PAGE_SIZE is silly. Use HPAGE_PMD_SIZE.
> 
> Reported-by: Randy Dunlap <rdunlap@infradead.org>
> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>

Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested

Thanks.

> ---
> 
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 738d071ba1ef..47c685088a2c 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -1401,9 +1401,11 @@ static char *memory_stat_format(struct mem_cgroup *memcg)
>  		       (u64)memcg_page_state(memcg, NR_WRITEBACK) *
>  		       PAGE_SIZE);
>  
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>  	seq_buf_printf(&s, "anon_thp %llu\n",
>  		       (u64)memcg_page_state(memcg, NR_ANON_THPS) *
> -		       HPAGE_PMD_NR * PAGE_SIZE);
> +		       HPAGE_PMD_SIZE);
> +#endif
>  
>  	for (i = 0; i < NR_LRU_LISTS; i++)
>  		seq_buf_printf(&s, "%s %llu\n", lru_list_name(i),
> @@ -3752,7 +3754,9 @@ static int memcg_numa_stat_show(struct seq_file *m, void *v)
>  static const unsigned int memcg1_stats[] = {
>  	NR_FILE_PAGES,
>  	NR_ANON_MAPPED,
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>  	NR_ANON_THPS,
> +#endif
>  	NR_SHMEM,
>  	NR_FILE_MAPPED,
>  	NR_FILE_DIRTY,
> @@ -3763,7 +3767,9 @@ static const unsigned int memcg1_stats[] = {
>  static const char *const memcg1_stat_names[] = {
>  	"cache",
>  	"rss",
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>  	"rss_huge",
> +#endif
>  	"shmem",
>  	"mapped_file",
>  	"dirty",
> @@ -3794,8 +3800,10 @@ static int memcg_stat_show(struct seq_file *m, void *v)
>  		if (memcg1_stats[i] == MEMCG_SWAP && !do_memsw_account())
>  			continue;
>  		nr = memcg_page_state_local(memcg, memcg1_stats[i]);
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>  		if (memcg1_stats[i] == NR_ANON_THPS)
>  			nr *= HPAGE_PMD_NR;
> +#endif
>  		seq_printf(m, "%s %lu\n", memcg1_stat_names[i], nr * PAGE_SIZE);
>  	}
>  
> 


-- 
~Randy

Re: mmotm 2020-05-11-15-43 uploaded (mm/memcontrol.c, huge pages)

[Naresh Kamboju]

> The THP page size macros are CONFIG_TRANSPARENT_HUGEPAGE only.
>
> We already ifdef most THP-related code in memcg, but not these
> particular stats. Memcg used to track the pages as they came in, and
> PageTransHuge() + hpage_nr_pages() work when THP is not compiled in.
>
> Switching to native vmstat counters, memcg doesn't see the pages, it
> only gets a count of THPs. To translate that to bytes, it has to know
> how big the THPs are - and that's only available for CONFIG_THP.
>
> Add the necessary ifdefs. /proc/meminfo, smaps etc. also don't show
> the THP counters when the feature is compiled out. The event counts
> (THP_FAULT_ALLOC, THP_COLLAPSE_ALLOC) were already conditional also.
>
> Style touchup: HPAGE_PMD_NR * PAGE_SIZE is silly. Use HPAGE_PMD_SIZE.

Build tested and build pass on x86_64.

>
> Reported-by: Randy Dunlap <rdunlap@infradead.org>
> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>

Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>

> ---
>
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 738d071ba1ef..47c685088a2c 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -1401,9 +1401,11 @@ static char *memory_stat_format(struct mem_cgroup *memcg)
>                        (u64)memcg_page_state(memcg, NR_WRITEBACK) *
>                        PAGE_SIZE);
>
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>         seq_buf_printf(&s, "anon_thp %llu\n",
>                        (u64)memcg_page_state(memcg, NR_ANON_THPS) *
> -                      HPAGE_PMD_NR * PAGE_SIZE);
> +                      HPAGE_PMD_SIZE);
> +#endif
>
>         for (i = 0; i < NR_LRU_LISTS; i++)
>                 seq_buf_printf(&s, "%s %llu\n", lru_list_name(i),
> @@ -3752,7 +3754,9 @@ static int memcg_numa_stat_show(struct seq_file *m, void *v)
>  static const unsigned int memcg1_stats[] = {
>         NR_FILE_PAGES,
>         NR_ANON_MAPPED,
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>         NR_ANON_THPS,
> +#endif
>         NR_SHMEM,
>         NR_FILE_MAPPED,
>         NR_FILE_DIRTY,
> @@ -3763,7 +3767,9 @@ static const unsigned int memcg1_stats[] = {
>  static const char *const memcg1_stat_names[] = {
>         "cache",
>         "rss",
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>         "rss_huge",
> +#endif
>         "shmem",
>         "mapped_file",
>         "dirty",
> @@ -3794,8 +3800,10 @@ static int memcg_stat_show(struct seq_file *m, void *v)
>                 if (memcg1_stats[i] == MEMCG_SWAP && !do_memsw_account())
>                         continue;
>                 nr = memcg_page_state_local(memcg, memcg1_stats[i]);
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>                 if (memcg1_stats[i] == NR_ANON_THPS)
>                         nr *= HPAGE_PMD_NR;
> +#endif
>                 seq_printf(m, "%s %lu\n", memcg1_stat_names[i], nr * PAGE_SIZE);
>         }
>


-- 
Linaro LKFT
https://lkft.linaro.org

Re: mmotm 2020-05-11-15-43 uploaded (mm/memcontrol.c, huge pages)

[Geert Uytterhoeven]

Hi Johannes,

On Tue, May 12, 2020 at 2:20 PM Johannes Weiner <hannes@cmpxchg.org> wrote:
> On Mon, May 11, 2020 at 09:41:24PM -0700, Randy Dunlap wrote:
> > On 5/11/20 3:44 PM, Andrew Morton wrote:
> > > The mm-of-the-moment snapshot 2020-05-11-15-43 has been uploaded to
> > >
> > >    http://www.ozlabs.org/~akpm/mmotm/
> > >
> > > mmotm-readme.txt says
> > >
> > > README for mm-of-the-moment:
> > >
> > > http://www.ozlabs.org/~akpm/mmotm/
> > >
> > > This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
> > > more than once a week.
> > >
> > > You will need quilt to apply these patches to the latest Linus release (5.x
> > > or 5.x-rcY).  The series file is in broken-out.tar.gz and is duplicated in
> > > http://ozlabs.org/~akpm/mmotm/series
> > >
> > > The file broken-out.tar.gz contains two datestamp files: .DATE and
> > > .DATE-yyyy-mm-dd-hh-mm-ss.  Both contain the string yyyy-mm-dd-hh-mm-ss,
> > > followed by the base kernel version against which this patch series is to
> > > be applied.
> > >
> > > This tree is partially included in linux-next.  To see which patches are
> > > included in linux-next, consult the `series' file.  Only the patches
> > > within the #NEXT_PATCHES_START/#NEXT_PATCHES_END markers are included in
> > > linux-next.
> > >
> > >
> > > A full copy of the full kernel tree with the linux-next and mmotm patches
> > > already applied is available through git within an hour of the mmotm
> > > release.  Individual mmotm releases are tagged.  The master branch always
> > > points to the latest release, so it's constantly rebasing.
> > >
> > >     https://github.com/hnaz/linux-mm
> > >
> > > The directory http://www.ozlabs.org/~akpm/mmots/ (mm-of-the-second)
> > > contains daily snapshots of the -mm tree.  It is updated more frequently
> > > than mmotm, and is untested.
> > >
> > > A git copy of this tree is also available at
> > >
> > >     https://github.com/hnaz/linux-mm
>
> Thanks for the report, Randy.
>
> ---
>
> Randy reports:
>
> > on x86_64:
> >
> > In file included from ../arch/x86/include/asm/atomic.h:5:0,
> >                  from ../include/linux/atomic.h:7,
> >                  from ../include/linux/page_counter.h:5,
> >                  from ../mm/memcontrol.c:25:
> > ../mm/memcontrol.c: In function ‘memcg_stat_show’:
> > ../include/linux/compiler.h:394:38: error: call to ‘__compiletime_assert_383’ declared with attribute error: BUILD_BUG failed
> >   _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
> >                                       ^
> > ../include/linux/compiler.h:375:4: note: in definition of macro ‘__compiletime_assert’
> >     prefix ## suffix();    \
> >     ^~~~~~
> > ../include/linux/compiler.h:394:2: note: in expansion of macro ‘_compiletime_assert’
> >   _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
> >   ^~~~~~~~~~~~~~~~~~~
> > ../include/linux/build_bug.h:39:37: note: in expansion of macro ‘compiletime_assert’
> >  #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
> >                                      ^~~~~~~~~~~~~~~~~~
> > ../include/linux/build_bug.h:59:21: note: in expansion of macro ‘BUILD_BUG_ON_MSG’
> >  #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
> >                      ^~~~~~~~~~~~~~~~
> > ../include/linux/huge_mm.h:319:28: note: in expansion of macro ‘BUILD_BUG’
> >  #define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; })
>
> The THP page size macros are CONFIG_TRANSPARENT_HUGEPAGE only.
>
> We already ifdef most THP-related code in memcg, but not these
> particular stats. Memcg used to track the pages as they came in, and
> PageTransHuge() + hpage_nr_pages() work when THP is not compiled in.
>
> Switching to native vmstat counters, memcg doesn't see the pages, it
> only gets a count of THPs. To translate that to bytes, it has to know
> how big the THPs are - and that's only available for CONFIG_THP.
>
> Add the necessary ifdefs. /proc/meminfo, smaps etc. also don't show
> the THP counters when the feature is compiled out. The event counts
> (THP_FAULT_ALLOC, THP_COLLAPSE_ALLOC) were already conditional also.
>
> Style touchup: HPAGE_PMD_NR * PAGE_SIZE is silly. Use HPAGE_PMD_SIZE.
>
> Reported-by: Randy Dunlap <rdunlap@infradead.org>
> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
> ---
>
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 738d071ba1ef..47c685088a2c 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -1401,9 +1401,11 @@ static char *memory_stat_format(struct mem_cgroup *memcg)
>                        (u64)memcg_page_state(memcg, NR_WRITEBACK) *
>                        PAGE_SIZE);
>
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>         seq_buf_printf(&s, "anon_thp %llu\n",
>                        (u64)memcg_page_state(memcg, NR_ANON_THPS) *
> -                      HPAGE_PMD_NR * PAGE_SIZE);
> +                      HPAGE_PMD_SIZE);
> +#endif
>
>         for (i = 0; i < NR_LRU_LISTS; i++)
>                 seq_buf_printf(&s, "%s %llu\n", lru_list_name(i),
> @@ -3752,7 +3754,9 @@ static int memcg_numa_stat_show(struct seq_file *m, void *v)
>  static const unsigned int memcg1_stats[] = {
>         NR_FILE_PAGES,
>         NR_ANON_MAPPED,
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>         NR_ANON_THPS,
> +#endif
>         NR_SHMEM,
>         NR_FILE_MAPPED,
>         NR_FILE_DIRTY,
> @@ -3763,7 +3767,9 @@ static const unsigned int memcg1_stats[] = {
>  static const char *const memcg1_stat_names[] = {
>         "cache",
>         "rss",
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>         "rss_huge",
> +#endif
>         "shmem",
>         "mapped_file",
>         "dirty",
> @@ -3794,8 +3800,10 @@ static int memcg_stat_show(struct seq_file *m, void *v)
>                 if (memcg1_stats[i] == MEMCG_SWAP && !do_memsw_account())
>                         continue;
>                 nr = memcg_page_state_local(memcg, memcg1_stats[i]);
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
>                 if (memcg1_stats[i] == NR_ANON_THPS)
>                         nr *= HPAGE_PMD_NR;
> +#endif
>                 seq_printf(m, "%s %lu\n", memcg1_stat_names[i], nr * PAGE_SIZE);
>         }

Fixes the build issue with m68k/allmodconfig, too.
Not boot-tested.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: mmotm 2020-05-11-15-43 uploaded (mm/memcontrol.c, huge pages)

[Geert Uytterhoeven]

On Tue, May 12, 2020 at 6:44 AM Randy Dunlap <rdunlap@infradead.org> wrote:
> On 5/11/20 3:44 PM, Andrew Morton wrote:
> > The mm-of-the-moment snapshot 2020-05-11-15-43 has been uploaded to
> >
> >    http://www.ozlabs.org/~akpm/mmotm/
> >
> > mmotm-readme.txt says
> >
> > README for mm-of-the-moment:
> >
> > http://www.ozlabs.org/~akpm/mmotm/
> >
> > This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
> > more than once a week.
> >
> > You will need quilt to apply these patches to the latest Linus release (5.x
> > or 5.x-rcY).  The series file is in broken-out.tar.gz and is duplicated in
> > http://ozlabs.org/~akpm/mmotm/series
> >
> > The file broken-out.tar.gz contains two datestamp files: .DATE and
> > .DATE-yyyy-mm-dd-hh-mm-ss.  Both contain the string yyyy-mm-dd-hh-mm-ss,
> > followed by the base kernel version against which this patch series is to
> > be applied.
> >
> > This tree is partially included in linux-next.  To see which patches are
> > included in linux-next, consult the `series' file.  Only the patches
> > within the #NEXT_PATCHES_START/#NEXT_PATCHES_END markers are included in
> > linux-next.
> >
> >
> > A full copy of the full kernel tree with the linux-next and mmotm patches
> > already applied is available through git within an hour of the mmotm
> > release.  Individual mmotm releases are tagged.  The master branch always
> > points to the latest release, so it's constantly rebasing.
> >
> >       https://github.com/hnaz/linux-mm
> >
> > The directory http://www.ozlabs.org/~akpm/mmots/ (mm-of-the-second)
> > contains daily snapshots of the -mm tree.  It is updated more frequently
> > than mmotm, and is untested.
> >
> > A git copy of this tree is also available at
> >
> >       https://github.com/hnaz/linux-mm
>
> on x86_64:
>
> In file included from ../arch/x86/include/asm/atomic.h:5:0,
>                  from ../include/linux/atomic.h:7,
>                  from ../include/linux/page_counter.h:5,
>                  from ../mm/memcontrol.c:25:
> ../mm/memcontrol.c: In function ‘memcg_stat_show’:
> ../include/linux/compiler.h:394:38: error: call to ‘__compiletime_assert_383’ declared with attribute error: BUILD_BUG failed
>   _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
>                                       ^
> ../include/linux/compiler.h:375:4: note: in definition of macro ‘__compiletime_assert’
>     prefix ## suffix();    \
>     ^~~~~~
> ../include/linux/compiler.h:394:2: note: in expansion of macro ‘_compiletime_assert’
>   _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
>   ^~~~~~~~~~~~~~~~~~~
> ../include/linux/build_bug.h:39:37: note: in expansion of macro ‘compiletime_assert’
>  #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
>                                      ^~~~~~~~~~~~~~~~~~
> ../include/linux/build_bug.h:59:21: note: in expansion of macro ‘BUILD_BUG_ON_MSG’
>  #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
>                      ^~~~~~~~~~~~~~~~
> ../include/linux/huge_mm.h:319:28: note: in expansion of macro ‘BUILD_BUG’
>  #define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; })
>                             ^~~~~~~~~
> ../include/linux/huge_mm.h:115:26: note: in expansion of macro ‘HPAGE_PMD_SHIFT’
>  #define HPAGE_PMD_ORDER (HPAGE_PMD_SHIFT-PAGE_SHIFT)
>                           ^~~~~~~~~~~~~~~
> ../include/linux/huge_mm.h:116:26: note: in expansion of macro ‘HPAGE_PMD_ORDER’
>  #define HPAGE_PMD_NR (1<<HPAGE_PMD_ORDER)
>                           ^~~~~~~~~~~~~~~
> ../mm/memcontrol.c:3746:10: note: in expansion of macro ‘HPAGE_PMD_NR’
>     nr *= HPAGE_PMD_NR;
>           ^~~~~~~~~~~~
>   CC      arch/x86/kernel/jump_label.o
> ../mm/memcontrol.c: In function ‘memory_stat_format’:
> ../include/linux/compiler.h:394:38: error: call to ‘__compiletime_assert_356’ declared with attribute error: BUILD_BUG failed
>   _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
>                                       ^
> ../include/linux/compiler.h:375:4: note: in definition of macro ‘__compiletime_assert’
>     prefix ## suffix();    \
>     ^~~~~~
> ../include/linux/compiler.h:394:2: note: in expansion of macro ‘_compiletime_assert’
>   _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
>   ^~~~~~~~~~~~~~~~~~~
> ../include/linux/build_bug.h:39:37: note: in expansion of macro ‘compiletime_assert’
>  #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
>                                      ^~~~~~~~~~~~~~~~~~
> ../include/linux/build_bug.h:59:21: note: in expansion of macro ‘BUILD_BUG_ON_MSG’
>  #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
>                      ^~~~~~~~~~~~~~~~
> ../include/linux/huge_mm.h:319:28: note: in expansion of macro ‘BUILD_BUG’
>  #define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; })
>                             ^~~~~~~~~
> ../include/linux/huge_mm.h:115:26: note: in expansion of macro ‘HPAGE_PMD_SHIFT’
>  #define HPAGE_PMD_ORDER (HPAGE_PMD_SHIFT-PAGE_SHIFT)
>                           ^~~~~~~~~~~~~~~
> ../include/linux/huge_mm.h:116:26: note: in expansion of macro ‘HPAGE_PMD_ORDER’
>  #define HPAGE_PMD_NR (1<<HPAGE_PMD_ORDER)
>                           ^~~~~~~~~~~~~~~
> ../mm/memcontrol.c:1405:10: note: in expansion of macro ‘HPAGE_PMD_NR’
>           HPAGE_PMD_NR * PAGE_SIZE);
>           ^~~~~~~~~~~~
>
>
>
> Full randconfig file is attached.
>
> This might be relevant to mm-memcontrol-switch-to-native-nr_anon_thps-counter.patch

noreply@ellerman.id.au pointed me to a similar failure for m68k/allmodconfig:
http://kisskb.ellerman.id.au/kisskb/buildresult/14236262/

I've bisected it to 157f1f1385447604 ("mm: memcontrol: switch to native
NR_ANON_THPS counter").

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: mmotm 2020-05-11-15-43 uploaded (ethernet/ti/ti_cpsw)

[Grygorii Strashko]

On 12/05/2020 05:12, Randy Dunlap wrote:
> On 5/11/20 3:44 PM, Andrew Morton wrote:
>> The mm-of-the-moment snapshot 2020-05-11-15-43 has been uploaded to
>>
>>     http://www.ozlabs.org/~akpm/mmotm/
>>
>> mmotm-readme.txt says
>>
>> README for mm-of-the-moment:
>>
>> http://www.ozlabs.org/~akpm/mmotm/
>>
>> This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
>> more than once a week.
>>
>> You will need quilt to apply these patches to the latest Linus release (5.x
>> or 5.x-rcY).  The series file is in broken-out.tar.gz and is duplicated in
>> http://ozlabs.org/~akpm/mmotm/series
>>
>> The file broken-out.tar.gz contains two datestamp files: .DATE and
>> .DATE-yyyy-mm-dd-hh-mm-ss.  Both contain the string yyyy-mm-dd-hh-mm-ss,
>> followed by the base kernel version against which this patch series is to
>> be applied.
>>
>> This tree is partially included in linux-next.  To see which patches are
>> included in linux-next, consult the `series' file.  Only the patches
>> within the #NEXT_PATCHES_START/#NEXT_PATCHES_END markers are included in
>> linux-next.
>>
>>
>> A full copy of the full kernel tree with the linux-next and mmotm patches
>> already applied is available through git within an hour of the mmotm
>> release.  Individual mmotm releases are tagged.  The master branch always
>> points to the latest release, so it's constantly rebasing.
>>
>> 	https://github.com/hnaz/linux-mm
>>
>> The directory http://www.ozlabs.org/~akpm/mmots/ (mm-of-the-second)
>> contains daily snapshots of the -mm tree.  It is updated more frequently
>> than mmotm, and is untested.
>>
>> A git copy of this tree is also available at
>>
>> 	https://github.com/hnaz/linux-mm
> 
> on i386:
> 
> ERROR: modpost: "cpts_register" [drivers/net/ethernet/ti/ti_cpsw_new.ko] undefined!
> ERROR: modpost: "cpts_unregister" [drivers/net/ethernet/ti/ti_cpsw_new.ko] undefined!
> ERROR: modpost: "cpts_tx_timestamp" [drivers/net/ethernet/ti/ti_cpsw_new.ko] undefined!
> ERROR: modpost: "cpts_create" [drivers/net/ethernet/ti/ti_cpsw_new.ko] undefined!
> ERROR: modpost: "cpts_misc_interrupt" [drivers/net/ethernet/ti/ti_cpsw_new.ko] undefined!
> ERROR: modpost: "cpts_release" [drivers/net/ethernet/ti/ti_cpsw_new.ko] undefined!
> ERROR: modpost: "cpts_tx_timestamp" [drivers/net/ethernet/ti/ti_cpsw.ko] undefined!
> ERROR: modpost: "cpts_create" [drivers/net/ethernet/ti/ti_cpsw.ko] undefined!
> ERROR: modpost: "cpts_misc_interrupt" [drivers/net/ethernet/ti/ti_cpsw.ko] undefined!
> ERROR: modpost: "cpts_release" [drivers/net/ethernet/ti/ti_cpsw.ko] undefined!
> 
> 
> Full randconfig file is attached.
> 

It's expected to be fixed by
https://lkml.org/lkml/2020/5/12/333

-- 
Best regards,
grygorii

Re: mmotm 2020-05-11-15-43 uploaded (ethernet/ti/ti_cpsw)

[Randy Dunlap]

On 5/13/20 2:20 AM, Grygorii Strashko wrote:
> 
> 
> On 12/05/2020 05:12, Randy Dunlap wrote:
>> On 5/11/20 3:44 PM, Andrew Morton wrote:
>>> The mm-of-the-moment snapshot 2020-05-11-15-43 has been uploaded to
>>>
>>>     http://www.ozlabs.org/~akpm/mmotm/
>>>
>>> mmotm-readme.txt says
>>>
>>> README for mm-of-the-moment:
>>>
>>> http://www.ozlabs.org/~akpm/mmotm/
>>>
>>> This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
>>> more than once a week.
>>>
>>> You will need quilt to apply these patches to the latest Linus release (5.x
>>> or 5.x-rcY).  The series file is in broken-out.tar.gz and is duplicated in
>>> http://ozlabs.org/~akpm/mmotm/series
>>>
>>> The file broken-out.tar.gz contains two datestamp files: .DATE and
>>> .DATE-yyyy-mm-dd-hh-mm-ss.  Both contain the string yyyy-mm-dd-hh-mm-ss,
>>> followed by the base kernel version against which this patch series is to
>>> be applied.
>>>
>>> This tree is partially included in linux-next.  To see which patches are
>>> included in linux-next, consult the `series' file.  Only the patches
>>> within the #NEXT_PATCHES_START/#NEXT_PATCHES_END markers are included in
>>> linux-next.
>>>
>>>
>>> A full copy of the full kernel tree with the linux-next and mmotm patches
>>> already applied is available through git within an hour of the mmotm
>>> release.  Individual mmotm releases are tagged.  The master branch always
>>> points to the latest release, so it's constantly rebasing.
>>>
>>>     https://github.com/hnaz/linux-mm
>>>
>>> The directory http://www.ozlabs.org/~akpm/mmots/ (mm-of-the-second)
>>> contains daily snapshots of the -mm tree.  It is updated more frequently
>>> than mmotm, and is untested.
>>>
>>> A git copy of this tree is also available at
>>>
>>>     https://github.com/hnaz/linux-mm
>>
>> on i386:
>>
>> ERROR: modpost: "cpts_register" [drivers/net/ethernet/ti/ti_cpsw_new.ko] undefined!
>> ERROR: modpost: "cpts_unregister" [drivers/net/ethernet/ti/ti_cpsw_new.ko] undefined!
>> ERROR: modpost: "cpts_tx_timestamp" [drivers/net/ethernet/ti/ti_cpsw_new.ko] undefined!
>> ERROR: modpost: "cpts_create" [drivers/net/ethernet/ti/ti_cpsw_new.ko] undefined!
>> ERROR: modpost: "cpts_misc_interrupt" [drivers/net/ethernet/ti/ti_cpsw_new.ko] undefined!
>> ERROR: modpost: "cpts_release" [drivers/net/ethernet/ti/ti_cpsw_new.ko] undefined!
>> ERROR: modpost: "cpts_tx_timestamp" [drivers/net/ethernet/ti/ti_cpsw.ko] undefined!
>> ERROR: modpost: "cpts_create" [drivers/net/ethernet/ti/ti_cpsw.ko] undefined!
>> ERROR: modpost: "cpts_misc_interrupt" [drivers/net/ethernet/ti/ti_cpsw.ko] undefined!
>> ERROR: modpost: "cpts_release" [drivers/net/ethernet/ti/ti_cpsw.ko] undefined!
>>
>>
>> Full randconfig file is attached.
>>
> 
> It's expected to be fixed by
> https://lkml.org/lkml/2020/5/12/333

Works for me. Thanks.

Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested

-- 
~Randy