mmotm 2021-03-11-21-46 uploaded

The mm-of-the-moment snapshot 2021-03-11-21-46 has been uploaded to

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

mmotm-readme.txt says

README for mm-of-the-moment:

https://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
https://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 https://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 5.12-rc2:
(patches marked "*" will be included in linux-next)

origin.patch
* memblock-fix-section-mismatch-warning.patch
* stop_machine-mark-helpers-__always_inline.patch
* init-kconfig-make-compile_test-depend-on-has_iomem.patch
* mm-page_allocc-refactor-initialization-of-struct-page-for-holes-in-memory-layout.patch
* mm-page_allocc-refactor-initialization-of-struct-page-for-holes-in-memory-layout-fix.patch
* mm-fork-clear-pasid-for-new-mm.patch
* hugetlb_cgroup-fix-imbalanced-css_get-and-css_put-pair-for-shared-mappings.patch
* fix-zero_user_segments-with-start-end.patch
* binfmt_misc-fix-possible-deadlock-in-bm_register_write.patch
* maintainers-exclude-uapi-directories-in-api-abi-section.patch
* linux-compiler-clangh-define-have_builtin_bswap.patch
* kfence-fix-printk-format-for-ptrdiff_t.patch
* kfence-slab-fix-cache_alloc_debugcheck_after-for-bulk-allocations.patch
* kfence-fix-reports-if-constant-function-prefixes-exist.patch
* mm-use-rcu_dereference-in-in_vfork.patch
* mm-madvise-replace-ptrace-attach-requirement-for-process_madvise.patch
* ia64-fix-ia64_syscall_get_set_arguments-for-break-based-syscalls.patch
* ia64-fix-ptraceptrace_syscall_info_exit-sign.patch
* kasan-mm-fix-crash-with-hw_tags-and-debug_pagealloc.patch
* kasan-fix-kasan_stack-dependency-for-hw_tags.patch
* kasan-fix-per-page-tags-for-non-page_alloc-pages.patch
* mm-userfaultfd-fix-memory-corruption-due-to-writeprotect.patch
* mm-hwpoison-do-not-lock-page-again-when-me_huge_page-successfully-recovers.patch
* hugetlb-dedup-the-code-to-add-a-new-file_region.patch
* hugetlg-break-earlier-in-add_reservation_in_range-when-we-can.patch
* mm-introduce-page_needs_cow_for_dma-for-deciding-whether-cow.patch
* mm-use-is_cow_mapping-across-tree-where-proper.patch
* hugetlb-do-early-cow-when-page-pinned-on-src-mm.patch
* mm-memcg-rename-mem_cgroup_split_huge_fixup-to-split_page_memcg.patch
* mm-memcg-set-memcg-when-split-page.patch
* mm-mmu_notifiers-esnure-range_end-is-paired-with-range_start.patch
* z3fold-prevent-reclaim-free-race-for-headless-pages.patch
* squashfs-fix-inode-lookup-sanity-checks.patch
* squashfs-fix-xattr-id-and-id-lookup-sanity-checks.patch
* proc-kpageflags-prevent-an-integer-overflow-in-stable_page_flags.patch
* proc-kpageflags-do-not-use-uninitialized-struct-pages.patch
* module-remove-duplicate-include-in-arch-ia64-kernel-heads.patch
* ia64-kernel-few-typos-fixed-in-the-file-fsyss.patch
* sparse-can-do-constant-folding-of-__builtin_bswap.patch
* scripts-spellingtxt-add-overlfow.patch
* scripts-spellingtxt-add-diabled-typo.patch
* scripts-spellingtxt-add-overflw.patch
* sh-remove-duplicate-include-in-tlbh.patch
* ocfs2-replace-define_simple_attribute-with-define_debugfs_attribute.patch
* ocfs2-clear-links-count-in-ocfs2_mknod-if-an-error-occurs.patch
* ocfs2-fix-ocfs2-corrupt-when-iputting-an-inode.patch
* watchdog-rename-__touch_watchdog-to-a-better-descriptive-name.patch
* watchdog-explicitly-update-timestamp-when-reporting-softlockup.patch
* watchdog-softlockup-report-the-overall-time-of-softlockups.patch
* watchdog-softlockup-remove-logic-that-tried-to-prevent-repeated-reports.patch
* watchdog-fix-barriers-when-printing-backtraces-from-all-cpus.patch
* watchdog-cleanup-handling-of-false-positives.patch
mm.patch
* mm-slub-introduce-two-counters-for-partial-objects.patch
* mm-slub-get-rid-of-count_partial.patch
* percpu-export-per_cpu_sum.patch
* mm-slub-use-percpu-partial-free-counter.patch
* mm-page_owner-record-the-timestamp-of-all-pages-during-free.patch
* mm-provide-filemap_range_needs_writeback-helper.patch
* mm-use-filemap_range_needs_writeback-for-o_direct-reads.patch
* iomap-use-filemap_range_needs_writeback-for-o_direct-reads.patch
* mm-filemap-use-filemap_read_page-in-filemap_fault.patch
* mm-filemap-drop-check-for-truncated-page-after-i-o.patch
* mm-page-writeback-simplify-memcg-handling-in-test_clear_page_writeback.patch
* mm-msync-exit-early-when-the-flags-is-an-ms_async-and-start-vm_start.patch
* mm-memremap-fixes-improper-spdx-comment-style.patch
* mm-memcontrol-fix-kernel-stack-account.patch
* memcg-cleanup-root-memcg-checks.patch
* memcg-enable-memcg-oom-kill-for-__gfp_nofail.patch
* memcg-charge-before-adding-to-swapcache-on-swapin.patch
* mm-memcontrol-fix-cpuhotplug-statistics-flushing.patch
* mm-memcontrol-kill-mem_cgroup_nodeinfo.patch
* mm-memcontrol-privatize-memcg_page_state-query-functions.patch
* cgroup-rstat-support-cgroup1.patch
* cgroup-rstat-punt-root-level-optimization-to-individual-controllers.patch
* mm-memcontrol-switch-to-rstat.patch
* mm-memcontrol-switch-to-rstat-fix.patch
* mm-memcontrol-consolidate-lruvec-stat-flushing.patch
* kselftests-cgroup-update-kmem-test-for-new-vmstat-implementation.patch
* mm-delete-bool-migrated.patch
* mm-interval_tree-add-comments-to-improve-code-reading.patch
* x86-vmemmap-drop-handling-of-4k-unaligned-vmemmap-range.patch
* x86-vmemmap-drop-handling-of-1gb-vmemmap-ranges.patch
* x86-vmemmap-handle-unpopulated-sub-pmd-ranges.patch
* x86-vmemmap-optimize-for-consecutive-sections-in-partial-populated-pmds.patch
* mm-tracing-improve-rss_stat-tracepoint-message.patch
* mm-allow-shmem-mappings-with-mremap_dontunmap.patch
* mm-dmapool-switch-from-strlcpy-to-strscpy.patch
* samples-vfio-mdev-mdpy-use-remap_vmalloc_range.patch
* mm-unexport-remap_vmalloc_range_partial.patch
* mm-vmalloc-use-rb_tree-instead-of-list-for-vread-lookups.patch
* kasan-remove-redundant-config-option.patch
* mm-kasan-switch-from-strlcpy-to-strscpy.patch
* kasan-initialize-shadow-to-tag_invalid-for-sw_tags.patch
* mm-kasan-dont-poison-boot-memory-with-tag-based-modes.patch
* arm64-kasan-allow-to-init-memory-when-setting-tags.patch
* kasan-init-memory-in-kasan_unpoison-for-hw_tags.patch
* kasan-mm-integrate-page_alloc-init-with-hw_tags.patch
* kasan-mm-integrate-slab-init_on_alloc-with-hw_tags.patch
* kasan-mm-integrate-slab-init_on_free-with-hw_tags.patch
* mm-page_alloc-drop-pr_info_ratelimited-in-alloc_contig_range.patch
* mm-remove-lru_add_drain_all-in-alloc_contig_range.patch
* mm-correctly-determine-last_cpupid_width.patch
* mm-clean-up-include-linux-page-flags-layouth.patch
* mm-page_alloc-rename-alloc_mask-to-alloc_gfp.patch
* mm-page_alloc-rename-gfp_mask-to-gfp.patch
* mm-page_alloc-combine-__alloc_pages-and-__alloc_pages_nodemask.patch
* mm-mempolicy-rename-alloc_pages_current-to-alloc_pages.patch
* mm-mempolicy-rewrite-alloc_pages-documentation.patch
* mm-mempolicy-rewrite-alloc_pages_vma-documentation.patch
* mm-mempolicy-fix-mpol_misplaced-kernel-doc.patch
* mm-page_alloc-dump-migrate-failed-pages.patch
* hugetlb-pass-vma-into-huge_pte_alloc-and-huge_pmd_share.patch
* hugetlb-pass-vma-into-huge_pte_alloc-and-huge_pmd_share-fix.patch
* hugetlb-userfaultfd-forbid-huge-pmd-sharing-when-uffd-enabled.patch
* hugetlb-userfaultfd-forbid-huge-pmd-sharing-when-uffd-enabled-fix.patch
* mm-hugetlb-move-flush_hugetlb_tlb_range-into-hugetlbh.patch
* hugetlb-userfaultfd-unshare-all-pmds-for-hugetlbfs-when-register-wp.patch
* mm-hugetlb-remove-redundant-reservation-check-condition-in-alloc_huge_page.patch
* mm-generalize-hugetlb_page_size_variable.patch
* mm-hugetlb-use-some-helper-functions-to-cleanup-code.patch
* mm-hugetlb-optimize-the-surplus-state-transfer-code-in-move_hugetlb_state.patch
* hugetlb_cgroup-remove-unnecessary-vm_bug_on_page-in-hugetlb_cgroup_migrate.patch
* mm-hugetlb-simplify-the-code-when-alloc_huge_page-failed-in-hugetlb_no_page.patch
* mm-hugetlb-avoid-calculating-fault_mutex_hash-in-truncate_op-case.patch
* khugepaged-remove-unneeded-return-value-of-khugepaged_collapse_pte_mapped_thps.patch
* khugepaged-reuse-the-smp_wmb-inside-__setpageuptodate.patch
* khugepaged-use-helper-khugepaged_test_exit-in-__khugepaged_enter.patch
* khugepaged-fix-wrong-result-value-for-trace_mm_collapse_huge_page_isolate.patch
* mm-huge_memoryc-remove-unnecessary-local-variable-ret2.patch
* mm-huge_memory-a-new-debugfs-interface-for-splitting-thp-tests.patch
* userfaultfd-add-minor-fault-registration-mode.patch
* userfaultfd-disable-huge-pmd-sharing-for-minor-registered-vmas.patch
* userfaultfd-hugetlbfs-only-compile-uffd-helpers-if-config-enabled.patch
* userfaultfd-add-uffdio_continue-ioctl.patch
* userfaultfd-update-documentation-to-describe-minor-fault-handling.patch
* userfaultfd-selftests-add-test-exercising-minor-fault-handling.patch
* userfaultfd-support-minor-fault-handling-for-shmem.patch
* userfaultfd-selftests-use-memfd_create-for-shmem-test-type.patch
* userfaultfd-selftests-create-alias-mappings-in-the-shmem-test.patch
* userfaultfd-selftests-reinitialize-test-context-in-each-test.patch
* userfaultfd-selftests-exercise-minor-fault-handling-shmem-support.patch
* userfaultfd-selftests-use-user-mode-only.patch
* userfaultfd-selftests-remove-the-time-check-on-delayed-uffd.patch
* userfaultfd-selftests-dropping-verify-check-in-locking_thread.patch
* userfaultfd-selftests-only-dump-counts-if-mode-enabled.patch
* userfaultfd-selftests-unify-error-handling.patch
* mm-vmscan-move-reclaim-bits-to-uapi-header.patch
* mm-vmscan-replace-implicit-reclaim_zone-checks-with-explicit-checks.patch
* mm-vmscan-use-nid-from-shrink_control-for-tracepoint.patch
* mm-vmscan-consolidate-shrinker_maps-handling-code.patch
* mm-vmscan-use-shrinker_rwsem-to-protect-shrinker_maps-allocation.patch
* mm-vmscan-remove-memcg_shrinker_map_size.patch
* mm-vmscan-use-kvfree_rcu-instead-of-call_rcu.patch
* mm-memcontrol-rename-shrinker_map-to-shrinker_info.patch
* mm-vmscan-add-shrinker_info_protected-helper.patch
* mm-vmscan-use-a-new-flag-to-indicate-shrinker-is-registered.patch
* mm-vmscan-add-per-memcg-shrinker-nr_deferred.patch
* mm-vmscan-use-per-memcg-nr_deferred-of-shrinker.patch
* mm-vmscan-dont-need-allocate-shrinker-nr_deferred-for-memcg-aware-shrinkers.patch
* mm-memcontrol-reparent-nr_deferred-when-memcg-offline.patch
* mm-vmscan-shrink-deferred-objects-proportional-to-priority.patch
* mm-compaction-remove-unused-variable-sysctl_compact_memory.patch
* mm-compaction-update-the-compact-events-properly.patch
* mm-vmstat-add-cma-statistics.patch
* mm-cma-use-pr_err_ratelimited-for-cma-warning.patch
* mm-cma-support-sysfs.patch
* mm-restore-node-stat-checking-in-proc-sys-vm-stat_refresh.patch
* mm-no-more-einval-from-proc-sys-vm-stat_refresh.patch
* mm-proc-sys-vm-stat_refresh-skip-checking-known-negative-stats.patch
* mm-proc-sys-vm-stat_refresh-stop-checking-monotonic-numa-stats.patch
* x86-mm-tracking-linear-mapping-split-events.patch
* mm-mmap-dont-unlock-vmas-in-remap_file_pages.patch
* mm-reduce-mem_dump_obj-object-size.patch
* mm-gup-dont-pin-migrated-cma-pages-in-movable-zone.patch
* mm-gup-check-every-subpage-of-a-compound-page-during-isolation.patch
* mm-gup-return-an-error-on-migration-failure.patch
* mm-gup-check-for-isolation-errors.patch
* mm-cma-rename-pf_memalloc_nocma-to-pf_memalloc_pin.patch
* mm-apply-per-task-gfp-constraints-in-fast-path.patch
* mm-honor-pf_memalloc_pin-for-all-movable-pages.patch
* mm-gup-do-not-migrate-zero-page.patch
* mm-gup-migrate-pinned-pages-out-of-movable-zone.patch
* memory-hotplugrst-add-a-note-about-zone_movable-and-page-pinning.patch
* mm-gup-change-index-type-to-long-as-it-counts-pages.patch
* mm-gup-longterm-pin-migration-cleanup.patch
* selftests-vm-gup_test-fix-test-flag.patch
* selftests-vm-gup_test-test-faulting-in-kernel-and-verify-pinnable-pages.patch
* mmmemory_hotplug-allocate-memmap-from-the-added-memory-range.patch
* mmmemory_hotplug-allocate-memmap-from-the-added-memory-range-fix.patch
* acpimemhotplug-enable-mhp_memmap_on_memory-when-supported.patch
* mmmemory_hotplug-add-kernel-boot-option-to-enable-memmap_on_memory.patch
* x86-kconfig-introduce-arch_mhp_memmap_on_memory_enable.patch
* arm64-kconfig-introduce-arch_mhp_memmap_on_memory_enable.patch
* mm-zswap-switch-from-strlcpy-to-strscpy.patch
* iov_iter-lift-memzero_page-to-highmemh.patch
* mm-highmem-convert-memzero_page-to-kmap_local_page.patch
* btrfs-use-memzero_page-instead-of-open-coded-kmap-pattern.patch
* mm-highmemc-fix-coding-style-issue.patch
* mm-highmem-remove-deprecated-kmap_atomic.patch
* mm-mempool-minor-coding-style-tweaks.patch
* mm-swapfile-minor-coding-style-tweaks.patch
* mm-sparse-minor-coding-style-tweaks.patch
* mm-vmscan-minor-coding-style-tweaks.patch
* mm-compaction-minor-coding-style-tweaks.patch
* mm-oom_kill-minor-coding-style-tweaks.patch
* mm-shmem-minor-coding-style-tweaks.patch
* mm-page_alloc-minor-coding-style-tweaks.patch
* mm-filemap-minor-coding-style-tweaks.patch
* mm-mlock-minor-coding-style-tweaks.patch
* mm-frontswap-minor-coding-style-tweaks.patch
* mm-vmalloc-minor-coding-style-tweaks.patch
* mm-memory_hotplug-minor-coding-style-tweaks.patch
* mm-mempolicy-minor-coding-style-tweaks.patch
* mm-process_vm_access-remove-duplicate-include.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
* procfs-allow-reading-fdinfo-with-ptrace_mode_read.patch
* procfs-dmabuf-add-inode-number-to-proc-fdinfo.patch
* proc-sysctl-make-protected_-world-readable.patch
* include-remove-pagemaph-from-blkdevh.patch
* kernel-asyncc-fix-pr_debug-statement.patch
* kernel-credc-make-init_groups-static.patch
* lib-fix-a-typo-in-the-file-bchc.patch
* lib-fix-inconsistent-indenting-in-process_bit1.patch
* compat-remove-unneeded-declaration-from-compat_syscall_definex.patch
* fs-fat-fix-spelling-typo-of-values.patch
* simplify-copy_mm.patch
* kernel-crash_core-add-crashkernel=auto-for-vmcore-creation.patch
* kexec-add-kexec-reboot-string.patch
* kernel-kexec_file-fix-error-return-code-of-kexec_calculate_store_digests.patch
* aio-simplify-read_events.patch
* gdb-lx-symbols-store-the-abspath.patch
* kernel-asyncc-stop-guarding-pr_debug-statements.patch
* kernel-asyncc-remove-async_unregister_domain.patch
linux-next.patch
linux-next-rejects.patch
linux-next-git-rejects.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

on x86_64 or i386 or uml (arch/um/):

../mm/shmem.c:2365:12: warning: ‘enum mcopy_atomic_mode’ declared inside parameter list will not be visible outside of this definition or declaration
enum mcopy_atomic_mode mode, struct page **pagep)
^~~~~~~~~~~~~~~~~
../mm/shmem.c:2365:30: error: parameter 6 (‘mode’) has incomplete type
enum mcopy_atomic_mode mode, struct page **pagep)
^~~~
../mm/shmem.c:2362:5: error: function declaration isn’t a prototype [-Werror=strict-prototypes]
int shmem_mcopy_atomic_pte(struct mm_struct *dst_mm, pmd_t *dst_pmd,

     ^~~~~~~~~~~~~~~~~~~~~~
  CC      arch/x86/kernel/cpu/mtrr/generic.o
../mm/shmem.c: In function ‘shmem_mcopy_atomic_pte’:
../mm/shmem.c:2367:30: error: ‘MCOPY_ATOMIC_CONTINUE’ undeclared (first use in this function); did you mean ‘__ATOMIC_CONSUME’?
  bool is_continue = (mode == MCOPY_ATOMIC_CONTINUE);
                              ^~~~~~~~~~~~~~~~~~~~~
                              __ATOMIC_CONSUME

../mm/shmem.c:2367:30: note: each undeclared identifier is reported only once for each function it appears in
CC arch/x86/crypto/twofish_glue_3way.o
../mm/shmem.c:2394:15: error: ‘MCOPY_ATOMIC_NORMAL’ undeclared (first use in this function); did you mean ‘MCOPY_ATOMIC_CONTINUE’?
if (mode == MCOPY_ATOMIC_NORMAL) { /* mcopy_atomic */

               ^~~~~~~~~~~~~~~~~~~
               MCOPY_ATOMIC_CONTINUE

Full randconfig file is attached.

~Randy
Reported-by: Randy Dunlap <[email protected]>