mmotm 2018-03-07-16-19 uploaded

mmotm 2018-03-07-16-19 uploaded

[akpm]

The mm-of-the-moment snapshot 2018-03-07-16-19 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 (4.x
or 4.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 git tree which contains the memory management portion of this tree is
maintained at git://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git
by Michal Hocko.  It contains the patches which are between the
"#NEXT_PATCHES_START mm" and "#NEXT_PATCHES_END" markers, from the series
file, http://www.ozlabs.org/~akpm/mmotm/series.


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.

http://git.cmpxchg.org/cgit.cgi/linux-mmotm.git/

To develop on top of mmotm git:

  $ git remote add mmotm git://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git
  $ git remote update mmotm
  $ git checkout -b topic mmotm/master
  <make changes, commit>
  $ git send-email mmotm/master.. [...]

To rebase a branch with older patches to a new mmotm release:

  $ git remote update mmotm
  $ git rebase --onto mmotm/master <topic base> topic




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 available at

	http://git.cmpxchg.org/cgit.cgi/linux-mmots.git/

and use of this tree is similar to
http://git.cmpxchg.org/cgit.cgi/linux-mmotm.git/, described above.


This mmotm tree contains the following patches against 4.16-rc4:
(patches marked "*" will be included in linux-next)

  origin.patch
  i-need-old-gcc.patch
* hugetlb-fix-surplus-pages-accounting.patch
* bug-use-%pb-in-bug-and-stack-protector-failure.patch
* bug-exclude-non-bug-warn-exceptions-from-report_bug.patch
* mm-gup-teach-get_user_pages_unlocked-to-handle-foll_nowait.patch
* mm-memblock-hardcode-the-end_pfn-being-1.patch
* mm-memblock-hardcode-the-end_pfn-being-1-fix.patch
* mm-memblock-hardcode-the-end_pfn-being-1-fix-fix.patch
* mm-page_alloc-fix-memmap_init_zone-pageblock-alignment.patch
* selftests-vm-run_vmtests-adjust-hugetlb-size-accroding-to-nr_cpus.patch
* selftests-vm-run_vmtests-adjust-hugetlb-size-accroding-to-nr_cpus-v2.patch
* zboot-fix-stack-protector-in-compressed-boot-phase.patch
* test_kmod-fix-limit-check-on-number-of-test-devices-created.patch
* lockdep-fix-fs_reclaim-warning.patch
* arm-arch-arm-include-asm-pageh-needs-personalityh.patch
* prctl-add-pr_et_pdeathsig_proc.patch
* tile-pci_gx-make-setup_pcie_rc_delay-__init.patch
* ocfs2-use-osb-instead-of-ocfs2_sb.patch
* ocfs2-use-oi-instead-of-ocfs2_i.patch
* ocfs2-clean-up-some-unused-function-declaration.patch
* ocfs2-keep-the-trace-point-consistent-with-the-function-name.patch
* ocfs2-dlm-dont-handle-migrate-lockres-if-already-in-shutdown.patch
* ocfs2-dlm-dont-handle-migrate-lockres-if-already-in-shutdown-v3.patch
* ocfs2-remove-unnecessary-null-pointer-check-before-kmem_cache_destroy.patch
* ocfs2-clean-up-two-unused-functions-in-suballocc.patch
* ocfs2-dlm-clean-unrelated-comment.patch
* ocfs2-get-rid-of-ocfs2_is_o2cb_active-function.patch
* ocfs2-move-some-definitions-to-header-file.patch
* ocfs2-fix-some-small-problems.patch
* ocfs2-add-kobject-for-online-file-check.patch
* ocfs2-add-duplicative-ino-number-check.patch
* ocfs2-without-quota-support-try-to-avoid-calling-quota-recovery.patch
* ocfs2-without-quota-support-try-to-avoid-calling-quota-recovery-checkpatch-fixes.patch
* block-restore-proc-partitions-to-not-display-non-partitionable-removable-devices.patch
* dentry-fix-kmemcheck-splat-at-take_dentry_name_snapshot.patch
  mm.patch
* slab-mark-kmalloc-machinery-as-__ro_after_init.patch
* slab-fixup-calculate_alignment-argument-type.patch
* slab-make-kmalloc_index-return-unsigned-int.patch
* slab-make-kmalloc_size-return-unsigned-int.patch
* slab-make-create_kmalloc_cache-work-with-32-bit-sizes.patch
* slab-make-create_boot_cache-work-with-32-bit-sizes.patch
* slab-make-kmem_cache_create-work-with-32-bit-sizes.patch
* slab-make-size_index-array-u8.patch
* slab-make-size_index_elem-unsigned-int.patch
* slub-make-remote_node_defrag_ratio-unsigned-int.patch
* slub-make-max_attr_size-unsigned-int.patch
* slub-make-red_left_pad-unsigned-int.patch
* slub-make-reserved-unsigned-int.patch
* slub-make-align-unsigned-int.patch
* slub-make-inuse-unsigned-int.patch
* slub-make-cpu_partial-unsigned-int.patch
* slub-make-offset-unsigned-int.patch
* slub-make-object_size-unsigned-int.patch
* slub-make-size-unsigned-int.patch
* slab-make-kmem_cache_flags-accept-32-bit-object-size.patch
* kasan-make-kasan_cache_create-work-with-32-bit-slab-cache-sizes.patch
* slab-make-usercopy-region-32-bit.patch
* slub-make-slab_index-return-unsigned-int.patch
* slub-make-struct-kmem_cache_order_objects-x-unsigned-int.patch
* slub-make-size_from_object-return-unsigned-int.patch
* slab-use-32-bit-arithmetic-in-freelist_randomize.patch
* mm-ksm-make-function-stable_node_dup-static.patch
* mm-always-print-rlimit_data-warning.patch
* mm-migrate-change-migration-reason-mr_cma-as-mr_contig_range.patch
* mm-hugetlbfs-move-hugetlbfs_i-outside-ifdef-config_hugetlbfs.patch
* mm-memfd-split-out-memfd-for-use-by-multiple-filesystems.patch
* mm-memfd-remove-memfd-code-from-shmem-files-and-use-new-memfd-files.patch
* mm-swap_slots-use-conditional-compilation-for-swap_slotsc.patch
* mm-initialize-pages-on-demand-during-boot.patch
* mm-initialize-pages-on-demand-during-boot-fix-3.patch
* mm-initialize-pages-on-demand-during-boot-fix-4.patch
* mm-initialize-pages-on-demand-during-boot-fix-4-fix.patch
* mm-thp-fix-potential-clearing-to-referenced-flag-in-page_idle_clear_pte_refs_one.patch
* mm-memory_hotplug-enforce-block-size-aligned-range-check.patch
* x86-mm-memory_hotplug-determine-block-size-based-on-the-end-of-boot-memory.patch
* x86-mm-memory_hotplug-determine-block-size-based-on-the-end-of-boot-memory-v4.patch
* mm-uninitialized-struct-page-poisoning-sanity-checking.patch
* mm-uninitialized-struct-page-poisoning-sanity-checking-v4.patch
* mm-memory_hotplug-optimize-probe-routine.patch
* mm-memory_hotplug-dont-read-nid-from-struct-page-during-hotplug.patch
* mm-memory_hotplug-dont-read-nid-from-struct-page-during-hotplug-v5.patch
* mm-memory_hotplug-optimize-memory-hotplug.patch
* mm-memory_hotplug-optimize-memory-hotplug-v5.patch
* mm-hwpoison-disable-memory-error-handling-on-1gb-hugepage.patch
* mm-page_alloc-extend-kernelcore-and-movablecore-for-percent.patch
* mm-page_alloc-extend-kernelcore-and-movablecore-for-percent-fix.patch
* mm-page_alloc-move-mirrored_kernelcore-to-__meminitdata.patch
* mm-re-use-define_show_attribute-macro.patch
* mm-re-use-define_show_attribute-macro-v2.patch
* mm-fix-races-between-address_space-dereference-and-free-in-page_evicatable.patch
* mm-page_ref-use-atomic_set_release-in-page_ref_unfreeze.patch
* mm-huge_memoryc-reorder-operations-in-__split_huge_page_tail.patch
* z3fold-limit-use-of-stale-list-for-allocation.patch
* mmvmscan-dont-pretend-forward-progress-upon-shrinker_rwsem-contention.patch
* mm-swap-clean-up-swap-readahead.patch
* mm-swap-clean-up-swap-readahead-fix.patch
* mm-swap-unify-cluster-based-and-vma-based-swap-readahead.patch
* mm-page_alloc-skip-over-regions-of-invalid-pfns-on-uma.patch
* mm-page_alloc-skip-over-regions-of-invalid-pfns-on-uma-fix.patch
* mm-kmemleak-make-kmemleak_boot_config-__init.patch
* mm-page_owner-make-early_page_owner_param-__init.patch
* mm-page_poison-make-early_page_poison_param-__init.patch
* mm-make-should_failslab-always-available-for-fault-injection.patch
* mm-compaction-drain-pcps-for-zone-when-kcompactd-fails.patch
* mm-free_pcppages_bulk-update-pcp-count-inside.patch
* mm-free_pcppages_bulk-do-not-hold-lock-when-picking-pages-to-free.patch
* mm-free_pcppages_bulk-prefetch-buddy-while-not-holding-lock.patch
* mm-sparse-add-a-static-variable-nr_present_sections.patch
* mm-sparsemem-defer-the-ms-section_mem_map-clearing.patch
* mm-sparse-add-a-new-parameter-data_unit_size-for-alloc_usemap_and_memmap.patch
* mm-sparse-optimize-memmap-allocation-during-sparse_init.patch
* mm-gupc-fixed-coding-style-issues.patch
* mm-powerpc-use-vma_kernel_pagesize-in-vma_mmu_pagesize.patch
* mm-hugetlbfs-introduce-pagesize-to-vm_operations_struct.patch
* device-dax-implement-pagesize-for-smaps-to-report-mmupagesize.patch
* mm-provide-consistent-declaration-for-num_poisoned_pages.patch
* direct-io-minor-cleanups-in-do_blockdev_direct_io.patch
* direct-io-minor-cleanups-in-do_blockdev_direct_io-fix.patch
* mm-introduce-nr_indirectly_reclaimable_bytes.patch
* mm-treat-indirectly-reclaimable-memory-as-available-in-memavailable.patch
* dcache-account-external-names-as-indirectly-reclaimable-memory.patch
* mm-fix-races-between-swapoff-and-flush-dcache.patch
* mm-fix-races-between-swapoff-and-flush-dcache-fix.patch
* zsmalloc-introduce-zs_huge_class_size-function.patch
* zram-drop-max_zpage_size-and-use-zs_huge_class_size.patch
* mm-nommu-remove-description-of-alloc_vm_area.patch
* mm-swap-remove-cold-parameter-description-for-release_pages.patch
* mm-kernel-doc-add-missing-parameter-descriptions.patch
* block_invalidatepage-only-release-page-if-the-full-page-was-invalidated.patch
* mm-swap-make-bool-enable_vma_readahead-and-function-swap_vma_readahead-static.patch
* mm-swap-fix-race-between-swapoff-and-some-swap-operations.patch
* mm-swap-fix-race-between-swapoff-and-some-swap-operations-v6.patch
* mmvmscan-mark-register_shrinker-as-__must_check.patch
* list_lru-prefetch-neighboring-list-entries-before-acquiring-lock.patch
* list_lru-prefetch-neighboring-list-entries-before-acquiring-lock-fix.patch
* mm-oom-refactor-the-oom_kill_process-function.patch
* mm-implement-mem_cgroup_scan_tasks-for-the-root-memory-cgroup.patch
* mm-oom-cgroup-aware-oom-killer.patch
* mm-oom-cgroup-aware-oom-killer-fix.patch
* mm-oom-introduce-memoryoom_group.patch
* mm-oom-introduce-memoryoom_group-fix.patch
* mm-oom-add-cgroup-v2-mount-option-for-cgroup-aware-oom-killer.patch
* mm-oom-docs-describe-the-cgroup-aware-oom-killer.patch
* mm-oom-docs-describe-the-cgroup-aware-oom-killer-fix.patch
* mm-oom-docs-describe-the-cgroup-aware-oom-killer-fix-2.patch
* mm-oom-docs-describe-the-cgroup-aware-oom-killer-fix-2-fix.patch
* cgroup-list-groupoom-in-cgroup-features.patch
* mm-add-strictlimit-knob-v2.patch
* mm-page_alloc-dont-reserve-zone_highmem-for-zone_movable-request.patch
* mm-cma-manage-the-memory-of-the-cma-area-by-using-the-zone_movable.patch
* mm-cma-remove-alloc_cma.patch
* arm-cma-avoid-double-mapping-to-the-cma-area-if-config_highmem-=-y.patch
* mm-dont-expose-page-to-fast-gup-before-its-ready.patch
* mm-swap-make-pointer-swap_avail_heads-static.patch
* mm-numa-rework-do_pages_move.patch
* mm-migrate-remove-reason-argument-from-new_page_t.patch
* mm-unclutter-thp-migration.patch
* mm-page_owner-align-with-pageblock_nr_pages.patch
* mm-make-count-list_lru_one-nr_items-lockless.patch
* mm-page_owner-align-with-pageblock_nr-pages.patch
* kasan-slub-fix-handling-of-kasan_slab_free-hook.patch
* kasan-slub-fix-handling-of-kasan_slab_free-hook-v2.patch
* kasan-fix-invalid-free-test-crashing-the-kernel.patch
* kasan-disallow-compiler-to-optimize-away-memset-in-tests.patch
* mm-kasan-dont-vfree-nonexistent-vm_area.patch
* procfs-add-seq_put_hex_ll-to-speed-up-proc-pid-maps.patch
* procfs-add-seq_put_hex_ll-to-speed-up-proc-pid-maps-v3.patch
* procfs-optimize-seq_pad-to-speed-up-proc-pid-maps.patch
* proc-get-rid-of-task-lock-unlock-pair-to-read-umask-for-the-status-file.patch
* proc-do-less-stuff-under-pde_unload_lock.patch
* proc-move-proc-sysvipc-creation-to-where-it-belongs.patch
* proc-faster-open-close-of-files-without-release-hook.patch
* proc-randomize-struct-pde_opener.patch
* proc-move-struct-pde_opener-to-kmem-cache.patch
* proc-account-struct-pde_opener.patch
* proc-add-seq_put_decimal_ull_width-to-speed-up-proc-pid-smaps.patch
* proc-add-seq_put_decimal_ull_width-to-speed-up-proc-pid-smaps-fix.patch
* proc-replace-seq_printf-on-seq_putc-to-speed-up-proc-pid-smaps.patch
* proc-optimize-single-symbol-delimiters-to-spead-up-seq_put_decimal_ull.patch
* proc-replace-seq_printf-by-seq_put_smth-to-speed-up-proc-pid-status.patch
* proc-check-permissions-earlier-for-proc-wchan.patch
* proc-use-set_puts-at-proc-wchan.patch
* fs-sysctl-fix-potential-page-fault-while-unregistering-sysctl-table.patch
* fs-sysctl-remove-redundant-link-check-in-proc_sys_link_fill_cache.patch
* proc-test-proc-self-wchan.patch
* proc-test-proc-self-syscall.patch
* proc-move-struct-proc_dir_entry-into-kmem-cache.patch
* proc-fix-proc-map_files-lookup-some-more.patch
* taint-convert-to-indexed-initialization.patch
* taint-consolidate-documentation.patch
* taint-add-taint-for-randstruct.patch
* uts-create-struct-uts_namespace-from-kmem_cache.patch
* lib-kconfigdebug-debug-lockups-and-hangs-keep-softlockup-options-together.patch
* test_bitmap-do-not-accidentally-use-stack-vla.patch
* vsprintf-remove-accidental-vla-usage.patch
* vsprintf-remove-accidental-vla-usage-fix.patch
* checkpatch-improve-parse_email-signature-checking.patch
* checkpatchpl-add-spdx-license-tag-check.patch
* checkpatch-add-crypto-on_stack-to-declaration_macros.patch
* checkpatch-add-sub-routine-get_stat_real.patch
* checkpatch-remove-unused-variable-declarations.patch
* checkpatch-add-sub-routine-get_stat_here.patch
* checkpatch-warn-for-use-of-%px.patch
* checkpatch-improve-get_quoted_string-for-trace_event-macros.patch
* checkpatch-two-spelling-fixes.patch
* init-ramdisk-use-pr_cont-at-the-end-of-ramdisk-loading.patch
* seq_file-delete-small-value-optimization.patch
* fork-unconditionally-clear-stack-on-fork.patch
* exec-pass-stack-rlimit-into-mm-layout-functions.patch
* exec-introduce-finalize_exec-before-start_thread.patch
* exec-pin-stack-limit-during-exec.patch
* kernel-downgrade-warning-for-unsafe-parameters.patch
* ipc-shm-introduce-shmctlshm_stat_any.patch
* ipc-sem-introduce-semctlsem_stat_any.patch
* ipc-msg-introduce-msgctlmsg_stat_any.patch
* proc-sysctl-fix-typo-in-sysctl_check_table_array.patch
* sysctl-add-kdoc-comments-to-do_proc_douintvec_minmax_conv_param.patch
* sysctl-add-flags-to-support-min-max-range-clamping.patch
* sysctl-add-flags-to-support-min-max-range-clamping-fix.patch
* sysctl-warn-when-a-clamped-sysctl-parameter-is-set-out-of-range.patch
* ipc-clamp-msgmni-and-shmmni-to-the-real-ipcmni-limit.patch
* ipc-clamp-semmni-to-the-real-ipcmni-limit.patch
  linux-next.patch
  linux-next-rejects.patch
  linux-next-fixup.patch
  linux-next-git-rejects.patch
* ipc-mqueue-add-missing-error-code-in-init_mqueue_fs.patch
* drivers-gpu-drm-i915-intel_guc_logc-work-around-gcc-444-union-initializer-issue.patch
* mm-introduce-map_fixed_safe.patch
* fs-elf-drop-map_fixed-usage-from-elf_map.patch
* elf-enforce-map_fixed-on-overlaying-elf-segments.patch
* xen-mm-allow-deferred-page-initialization-for-xen-pv-domains.patch
* linux-consth-prefix-include-guard-of-uapi-linux-consth-with-_uapi.patch
* linux-consth-move-ul-macro-to-include-linux-consth.patch
* linux-consth-refactor-_bitul-and-_bitull-a-bit.patch
* linux-consth-move-bit_ull-to-linux-consth-for-use-in-assembly.patch
* mm-memcg-remote-memcg-charging-for-kmem-allocations.patch
* fs-fsnotify-account-fsnotify-metadata-to-kmemcg.patch
* headers-untangle-kmemleakh-from-mmh.patch
* headers-untangle-kmemleakh-from-mmh-fix.patch
* fix-read-buffer-overflow-in-delta-ipc.patch
* sparc64-ng4-memset-32-bits-overflow.patch
  make-sure-nobodys-leaking-resources.patch
  releasing-resources-with-children.patch
  kernel-forkc-export-kernel_thread-to-modules.patch
  mutex-subsystem-synchro-test-module.patch
  slab-leaks3-default-y.patch
  workaround-for-a-pci-restoring-bug.patch

Re: mmotm 2018-03-07-16-19 uploaded (UML & memcg)

[Randy Dunlap]

On 03/07/2018 04:20 PM, akpm@linux-foundation.org wrote:
> The mm-of-the-moment snapshot 2018-03-07-16-19 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.

UML on i386 and/or x86_64:

defconfig, CONFIG_MEMCG is not set:

../fs/notify/group.c: In function 'fsnotify_final_destroy_group':
../fs/notify/group.c:41:24: error: dereferencing pointer to incomplete type
   css_put(&group->memcg->css);
                        ^

From: Shakeel Butt <shakeelb@google.com>
Subject: fs: fsnotify: account fsnotify metadata to kmemcg


-- 
~Randy

Re: mmotm 2018-03-07-16-19 uploaded (UML & memcg)

[Randy Dunlap]

On 03/07/2018 06:20 PM, Randy Dunlap wrote:
> On 03/07/2018 04:20 PM, akpm@linux-foundation.org wrote:
>> The mm-of-the-moment snapshot 2018-03-07-16-19 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.
> 
> UML on i386 and/or x86_64:
> 
> defconfig, CONFIG_MEMCG is not set:
> 
> ../fs/notify/group.c: In function 'fsnotify_final_destroy_group':
> ../fs/notify/group.c:41:24: error: dereferencing pointer to incomplete type
>    css_put(&group->memcg->css);
>                         ^
> 
> From: Shakeel Butt <shakeelb@google.com>
> Subject: fs: fsnotify: account fsnotify metadata to kmemcg



or x86 any time that CONFIG_MEMCG is not enabled.


-- 
~Randy

Re: mmotm 2018-03-07-16-19 uploaded (UML & memcg)

[Shakeel Butt]

On Wed, Mar 7, 2018 at 6:23 PM, Randy Dunlap <rdunlap@infradead.org> wrote:
> On 03/07/2018 06:20 PM, Randy Dunlap wrote:
>> On 03/07/2018 04:20 PM, akpm@linux-foundation.org wrote:
>>> The mm-of-the-moment snapshot 2018-03-07-16-19 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.
>>
>> UML on i386 and/or x86_64:
>>
>> defconfig, CONFIG_MEMCG is not set:
>>
>> ../fs/notify/group.c: In function 'fsnotify_final_destroy_group':
>> ../fs/notify/group.c:41:24: error: dereferencing pointer to incomplete type
>>    css_put(&group->memcg->css);
>>                         ^
>>
>> From: Shakeel Butt <shakeelb@google.com>
>> Subject: fs: fsnotify: account fsnotify metadata to kmemcg
>
>
>
> or x86 any time that CONFIG_MEMCG is not enabled.
>
>

Sorry about that. Replacing this with mem_cgroup_put(group->memcg)
should solve the issue on the mm tree.

Re: mmotm 2018-03-07-16-19 uploaded (UML & memcg)

[Shakeel Butt]

On Wed, Mar 7, 2018 at 6:34 PM, Shakeel Butt <shakeelb@google.com> wrote:
> On Wed, Mar 7, 2018 at 6:23 PM, Randy Dunlap <rdunlap@infradead.org> wrote:
>> On 03/07/2018 06:20 PM, Randy Dunlap wrote:
>>> On 03/07/2018 04:20 PM, akpm@linux-foundation.org wrote:
>>>> The mm-of-the-moment snapshot 2018-03-07-16-19 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.
>>>
>>> UML on i386 and/or x86_64:
>>>
>>> defconfig, CONFIG_MEMCG is not set:
>>>
>>> ../fs/notify/group.c: In function 'fsnotify_final_destroy_group':
>>> ../fs/notify/group.c:41:24: error: dereferencing pointer to incomplete type
>>>    css_put(&group->memcg->css);
>>>                         ^
>>>
>>> From: Shakeel Butt <shakeelb@google.com>
>>> Subject: fs: fsnotify: account fsnotify metadata to kmemcg
>>
>>
>>
>> or x86 any time that CONFIG_MEMCG is not enabled.
>>
>>
>
> Sorry about that. Replacing this with mem_cgroup_put(group->memcg)
> should solve the issue on the mm tree.

Andrew, do you want me to extract mem_cgroup_put() API from Roman's
patches as a separate patch?

Re: mmotm 2018-03-07-16-19 uploaded (UML & memcg)

[Andrew Morton]

On Wed, 7 Mar 2018 18:20:12 -0800 Randy Dunlap <rdunlap@infradead.org> wrote:

> On 03/07/2018 04:20 PM, akpm@linux-foundation.org wrote:
> > The mm-of-the-moment snapshot 2018-03-07-16-19 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.
> 
> UML on i386 and/or x86_64:
> 
> defconfig, CONFIG_MEMCG is not set:
> 
> ../fs/notify/group.c: In function 'fsnotify_final_destroy_group':
> ../fs/notify/group.c:41:24: error: dereferencing pointer to incomplete type
>    css_put(&group->memcg->css);

oops.

From: Andrew Morton <akpm@linux-foundation.org>
Subject: fs-fsnotify-account-fsnotify-metadata-to-kmemcg-fix

fix CONFIG_MEMCG=n build

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/notify/group.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/notify/group.c~fs-fsnotify-account-fsnotify-metadata-to-kmemcg-fix
+++ a/fs/notify/group.c
@@ -38,7 +38,7 @@ static void fsnotify_final_destroy_group
 		group->ops->free_group_priv(group);
 
 	if (group->memcg)
-		css_put(&group->memcg->css);
+		mem_cgroup_put(group->memcg);
 
 	kfree(group);
 }
_

Re: mmotm 2018-03-07-16-19 uploaded (UML & memcg)

[Stephen Rothwell]

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Hi Andrew,

On Wed, 7 Mar 2018 18:41:41 -0800 Andrew Morton <akpm@linux-foundation.org> wrote:
>
> On Wed, 7 Mar 2018 18:20:12 -0800 Randy Dunlap <rdunlap@infradead.org> wrote:
> 
> > On 03/07/2018 04:20 PM, akpm@linux-foundation.org wrote:  
> > > The mm-of-the-moment snapshot 2018-03-07-16-19 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.  
> > 
> > UML on i386 and/or x86_64:
> > 
> > defconfig, CONFIG_MEMCG is not set:
> > 
> > ../fs/notify/group.c: In function 'fsnotify_final_destroy_group':
> > ../fs/notify/group.c:41:24: error: dereferencing pointer to incomplete type
> >    css_put(&group->memcg->css);  
> 
> oops.
> 
> From: Andrew Morton <akpm@linux-foundation.org>
> Subject: fs-fsnotify-account-fsnotify-metadata-to-kmemcg-fix
> 
> fix CONFIG_MEMCG=n build
> 
> Reported-by: Randy Dunlap <rdunlap@infradead.org>
> Cc: Amir Goldstein <amir73il@gmail.com>
> Cc: Christoph Lameter <cl@linux.com>
> Cc: David Rientjes <rientjes@google.com>
> Cc: Greg Thelen <gthelen@google.com>
> Cc: Jan Kara <jack@suse.cz>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
> Cc: Mel Gorman <mgorman@suse.de>
> Cc: Michal Hocko <mhocko@kernel.org>
> Cc: Pekka Enberg <penberg@kernel.org>
> Cc: Shakeel Butt <shakeelb@google.com>
> Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
> Cc: Vlastimil Babka <vbabka@suse.cz>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> ---
> 
>  fs/notify/group.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- a/fs/notify/group.c~fs-fsnotify-account-fsnotify-metadata-to-kmemcg-fix
> +++ a/fs/notify/group.c
> @@ -38,7 +38,7 @@ static void fsnotify_final_destroy_group
>  		group->ops->free_group_priv(group);
>  
>  	if (group->memcg)
> -		css_put(&group->memcg->css);
> +		mem_cgroup_put(group->memcg);
>  
>  	kfree(group);
>  }

I have applied that to linux-next today.
-- 
Cheers,
Stephen Rothwell

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