From: Andrew Morton <akpm@linux-foundation.org> To: dancol@google.com, dave.hansen@intel.com, jannh@google.com, joel@joelfernandes.org, mhocko@suse.com, minchan@kernel.org, mm-commits@vger.kernel.org, stable@vger.kernel.org, vbabka@suse.cz Subject: + mm-do-not-allow-madv_pageout-for-cow-pages.patch added to -mm tree Date: Thu, 12 Mar 2020 17:26:32 -0700 [thread overview] Message-ID: <20200313002632.K95DZ6F32%akpm@linux-foundation.org> (raw) In-Reply-To: <20200305222751.6d781a3f2802d79510941e4e@linux-foundation.org> The patch titled Subject: mm: do not allow MADV_PAGEOUT for CoW pages has been added to the -mm tree. Its filename is mm-do-not-allow-madv_pageout-for-cow-pages.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-do-not-allow-madv_pageout-for-cow-pages.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-do-not-allow-madv_pageout-for-cow-pages.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Michal Hocko <mhocko@suse.com> Subject: mm: do not allow MADV_PAGEOUT for CoW pages Jann has brought up a very interesting point [1]. While shared pages are excluded from MADV_PAGEOUT normally, CoW pages can be easily reclaimed that way. This can lead to all sorts of hard to debug problems. E.g. performance problems outlined by Daniel [2]. There are runtime environments where there is a substantial memory shared among security domains via CoW memory and a easy to reclaim way of that memory, which MADV_{COLD,PAGEOUT} offers, can lead to either performance degradation in for the parent process which might be more privileged or even open side channel attacks. The feasibility of the latter is not really clear to me TBH but there is no real reason for exposure at this stage. It seems there is no real use case to depend on reclaiming CoW memory via madvise at this stage so it is much easier to simply disallow it and this is what this patch does. Put it simply MADV_{PAGEOUT,COLD} can operate only on the exclusively owned memory which is a straightforward semantic. [1] http://lkml.kernel.org/r/CAG48ez0G3JkMq61gUmyQAaCq=_TwHbi1XKzWRooxZkv08PQKuw@mail.gmail.com [2] http://lkml.kernel.org/r/CAKOZueua_v8jHCpmEtTB6f3i9e2YnmX4mqdYVWhV4E=Z-n+zRQ@mail.gmail.com Link: http://lkml.kernel.org/r/20200312082248.GS23944@dhcp22.suse.cz Fixes: 9c276cc65a58 ("mm: introduce MADV_COLD") Signed-off-by: Michal Hocko <mhocko@suse.com> Reported-by: Jann Horn <jannh@google.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Minchan Kim <minchan@kernel.org> Cc: Daniel Colascione <dancol@google.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: "Joel Fernandes (Google)" <joel@joelfernandes.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> --- mm/madvise.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) --- a/mm/madvise.c~mm-do-not-allow-madv_pageout-for-cow-pages +++ a/mm/madvise.c @@ -335,12 +335,14 @@ static int madvise_cold_or_pageout_pte_r } page = pmd_page(orig_pmd); + + /* Do not interfere with other mappings of this page */ + if (page_mapcount(page) != 1) + goto huge_unlock; + if (next - addr != HPAGE_PMD_SIZE) { int err; - if (page_mapcount(page) != 1) - goto huge_unlock;
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org> To: dancol@google.com, dave.hansen@intel.com, jannh@google.com, joel@joelfernandes.org, mhocko@suse.com, minchan@kernel.org, mm-commits@vger.kernel.org, stable@vger.kernel.org, vbabka@suse.cz Subject: + mm-do-not-allow-madv_pageout-for-cow-pages.patch added to -mm tree Date: Thu, 12 Mar 2020 17:26:32 -0700 [thread overview] Message-ID: <20200313002632.K95DZ6F32%akpm@linux-foundation.org> (raw) In-Reply-To: <20200305222751.6d781a3f2802d79510941e4e@linux-foundation.org> The patch titled Subject: mm: do not allow MADV_PAGEOUT for CoW pages has been added to the -mm tree. Its filename is mm-do-not-allow-madv_pageout-for-cow-pages.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-do-not-allow-madv_pageout-for-cow-pages.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-do-not-allow-madv_pageout-for-cow-pages.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Michal Hocko <mhocko@suse.com> Subject: mm: do not allow MADV_PAGEOUT for CoW pages Jann has brought up a very interesting point [1]. While shared pages are excluded from MADV_PAGEOUT normally, CoW pages can be easily reclaimed that way. This can lead to all sorts of hard to debug problems. E.g. performance problems outlined by Daniel [2]. There are runtime environments where there is a substantial memory shared among security domains via CoW memory and a easy to reclaim way of that memory, which MADV_{COLD,PAGEOUT} offers, can lead to either performance degradation in for the parent process which might be more privileged or even open side channel attacks. The feasibility of the latter is not really clear to me TBH but there is no real reason for exposure at this stage. It seems there is no real use case to depend on reclaiming CoW memory via madvise at this stage so it is much easier to simply disallow it and this is what this patch does. Put it simply MADV_{PAGEOUT,COLD} can operate only on the exclusively owned memory which is a straightforward semantic. [1] http://lkml.kernel.org/r/CAG48ez0G3JkMq61gUmyQAaCq=_TwHbi1XKzWRooxZkv08PQKuw@mail.gmail.com [2] http://lkml.kernel.org/r/CAKOZueua_v8jHCpmEtTB6f3i9e2YnmX4mqdYVWhV4E=Z-n+zRQ@mail.gmail.com Link: http://lkml.kernel.org/r/20200312082248.GS23944@dhcp22.suse.cz Fixes: 9c276cc65a58 ("mm: introduce MADV_COLD") Signed-off-by: Michal Hocko <mhocko@suse.com> Reported-by: Jann Horn <jannh@google.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Minchan Kim <minchan@kernel.org> Cc: Daniel Colascione <dancol@google.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: "Joel Fernandes (Google)" <joel@joelfernandes.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> --- mm/madvise.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) --- a/mm/madvise.c~mm-do-not-allow-madv_pageout-for-cow-pages +++ a/mm/madvise.c @@ -335,12 +335,14 @@ static int madvise_cold_or_pageout_pte_r } page = pmd_page(orig_pmd); + + /* Do not interfere with other mappings of this page */ + if (page_mapcount(page) != 1) + goto huge_unlock; + if (next - addr != HPAGE_PMD_SIZE) { int err; - if (page_mapcount(page) != 1) - goto huge_unlock; - get_page(page); spin_unlock(ptl); lock_page(page); @@ -426,6 +428,10 @@ regular_page: continue; } + /* Do not interfere with other mappings of this page */ + if (page_mapcount(page) != 1) + continue; + VM_BUG_ON_PAGE(PageTransCompound(page), page); if (pte_young(ptent)) { _ Patches currently in -mm which might be from mhocko@suse.com are mm-do-not-allow-madv_pageout-for-cow-pages.patch
next prev parent reply other threads:[~2020-03-13 0:26 UTC|newest] Thread overview: 212+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-03-06 6:27 incoming Andrew Morton 2020-03-06 6:28 ` [patch 1/7] mm, numa: fix bad pmd by atomically check for pmd_trans_huge when marking page tables prot_numa Andrew Morton 2020-03-06 6:28 ` [patch 2/7] mm: fix possible PMD dirty bit lost in set_pmd_migration_entry() Andrew Morton 2020-03-06 6:28 ` [patch 3/7] mm: avoid data corruption on CoW fault into PFN-mapped VMA Andrew Morton 2020-03-06 6:28 ` [patch 4/7] fat: fix uninit-memory access for partial initialized inode Andrew Morton 2020-03-06 6:28 ` Andrew Morton 2020-03-06 6:28 ` [patch 5/7] mm/z3fold.c: do not include rwlock.h directly Andrew Morton 2020-03-06 6:28 ` [patch 6/7] mm, hotplug: fix page online with DEBUG_PAGEALLOC compiled but not enabled Andrew Morton 2020-03-06 6:28 ` [patch 7/7] arch/Kconfig: update HAVE_RELIABLE_STACKTRACE description Andrew Morton 2020-03-07 20:49 ` + proc-speed-up-proc-statm.patch added to -mm tree Andrew Morton 2020-03-07 20:58 ` + mm-hotplug-fix-hot-remove-failure-in-sparsememvmemmap-case.patch " Andrew Morton 2020-03-07 21:01 ` + mm-use-fallthrough.patch " Andrew Morton 2020-03-07 21:53 ` + mm-gup-track-foll_pin-pages-fix.patch " Andrew Morton 2020-03-07 22:10 ` + mm-shmem-add-vmstat-for-hugepage-fallback.patch " Andrew Morton 2020-03-07 22:10 ` + mm-thp-track-fallbacks-due-to-failed-memcg-charges-separately.patch " Andrew Morton 2020-03-07 22:39 ` + mmpage_alloccma-conditionally-prefer-cma-pageblocks-for-movable-allocations.patch " Andrew Morton 2020-03-07 23:04 ` + mm-memory_hotplug-drop-the-flags-field-from-struct-mhp_restrictions.patch " Andrew Morton 2020-03-07 23:04 ` + mm-memory_hotplug-rename-mhp_restrictions-to-mhp_params.patch " Andrew Morton 2020-03-07 23:04 ` + x86-mm-thread-pgprot_t-through-init_memory_mapping.patch " Andrew Morton 2020-03-07 23:04 ` + x86-mm-introduce-__set_memory_prot.patch " Andrew Morton 2020-03-07 23:04 ` + powerpc-mm-thread-pgprot_t-through-create_section_mapping.patch " Andrew Morton 2020-03-07 23:04 ` + mm-memory_hotplug-add-pgprot_t-to-mhp_params.patch " Andrew Morton 2020-03-07 23:05 ` + mm-memremap-set-caching-mode-for-pci-p2pdma-memory-to-wc.patch " Andrew Morton 2020-03-07 23:11 ` + kasan-detect-negative-size-in-memory-operation-function-fix.patch " Andrew Morton 2020-03-07 23:25 ` + mm-gup-track-foll_pin-pages-fix-2.patch " Andrew Morton 2020-03-11 1:46 ` John Hubbard 2020-03-11 10:13 ` Claudio Imbrenda 2020-03-12 0:14 ` John Hubbard 2020-03-12 0:51 ` Andrew Morton 2020-03-12 0:51 ` Andrew Morton 2020-03-07 23:25 ` + mm-gup-writeback-add-callbacks-for-inaccessible-pages.patch " Andrew Morton 2020-03-07 23:33 ` + mm-sparsemem-use-wrapped-macros-instead-of-open-coding.patch " Andrew Morton 2020-03-09 23:34 ` + checkpatch-check-proper-licensing-of-devicetree-bindings.patch " Andrew Morton 2020-03-09 23:37 ` + kcov-cleanup-debug-messages.patch " Andrew Morton 2020-03-09 23:37 ` + kcov-collect-coverage-from-interrupts.patch " Andrew Morton 2020-03-09 23:37 ` + usb-core-kcov-collect-coverage-from-usb-complete-callback.patch " Andrew Morton 2020-03-10 0:49 ` + mm-swap_slotsc-dont-reset-the-cache-slot-after-use.patch " Andrew Morton 2020-03-10 0:51 ` + mm-hotplug-fix-hot-remove-failure-in-sparsememvmemmap-case-fix.patch " Andrew Morton 2020-03-10 0:57 ` + linux-bitsh-add-compile-time-sanity-check-of-genmask-inputs.patch " Andrew Morton 2020-03-10 2:29 ` + mm-page_alloc-use-free_area_empty-instead-of-open-coding.patch " Andrew Morton 2020-03-10 2:50 ` + mm-special-create-generic-fallbacks-for-pte_special-and-pte_mkspecial.patch " Andrew Morton 2020-03-10 2:53 ` + ocfs2-cluster-replace-zero-length-array-with-flexible-array-member.patch " Andrew Morton 2020-03-10 2:54 ` + ocfs2-dlm-replace-zero-length-array-with-flexible-array-member.patch " Andrew Morton 2020-03-10 2:54 ` + ocfs2-ocfs2_fsh-replace-zero-length-array-with-flexible-array-member.patch " Andrew Morton 2020-03-10 2:56 ` + mm-page_allocc-micro-optimisation-remove-unnecessary-branch.patch " Andrew Morton 2020-03-10 3:38 ` + mm-gup-rename-nonblocking-to-locked-where-proper.patch " Andrew Morton 2020-03-10 3:38 ` + mm-gup-fix-__get_user_pages-on-fault-retry-of-hugetlb.patch " Andrew Morton 2020-03-10 3:38 ` + mm-introduce-fault_signal_pending.patch " Andrew Morton 2020-03-10 3:38 ` + x86-mm-use-helper-fault_signal_pending.patch " Andrew Morton 2020-03-10 3:38 ` + arc-mm-use-helper-fault_signal_pending.patch " Andrew Morton 2020-03-10 3:38 ` + arm64-mm-use-helper-fault_signal_pending.patch " Andrew Morton 2020-03-10 3:38 ` + powerpc-mm-use-helper-fault_signal_pending.patch " Andrew Morton 2020-03-10 3:38 ` + sh-mm-use-helper-fault_signal_pending.patch " Andrew Morton 2020-03-10 3:38 ` + mm-return-faster-for-non-fatal-signals-in-user-mode-faults.patch " Andrew Morton 2020-03-10 3:38 ` + userfaultfd-dont-retake-mmap_sem-to-emulate-nopage.patch " Andrew Morton 2020-03-10 3:38 ` + mm-introduce-fault_flag_default.patch " Andrew Morton 2020-03-10 3:39 ` + mm-introduce-fault_flag_interruptible.patch " Andrew Morton 2020-03-10 3:39 ` + mm-allow-vm_fault_retry-for-multiple-times.patch " Andrew Morton 2020-03-10 3:39 ` + mm-gup-allow-vm_fault_retry-for-multiple-times.patch " Andrew Morton 2020-03-10 3:39 ` + mm-gup-allow-to-react-to-fatal-signals.patch " Andrew Morton 2020-03-10 3:39 ` + mm-userfaultfd-honor-fault_flag_killable-in-fault-path.patch " Andrew Morton 2020-03-10 3:41 ` + userfaultfd-wp-add-helper-for-writeprotect-check.patch " Andrew Morton 2020-03-10 3:41 ` + userfaultfd-wp-hook-userfault-handler-to-write-protection-fault.patch " Andrew Morton 2020-03-10 3:41 ` + userfaultfd-wp-add-wp-pagetable-tracking-to-x86.patch " Andrew Morton 2020-03-10 3:41 ` + userfaultfd-wp-userfaultfd_pte-huge_pmd_wp-helpers.patch " Andrew Morton 2020-03-10 3:41 ` + userfaultfd-wp-add-uffdio_copy_mode_wp.patch " Andrew Morton 2020-03-10 3:41 ` + mm-merge-parameters-for-change_protection.patch " Andrew Morton 2020-03-10 3:41 ` + userfaultfd-wp-apply-_page_uffd_wp-bit.patch " Andrew Morton 2020-03-10 3:41 ` + userfaultfd-wp-drop-_page_uffd_wp-properly-when-fork.patch " Andrew Morton 2020-03-10 3:41 ` + userfaultfd-wp-add-pmd_swp_uffd_wp-helpers.patch " Andrew Morton 2020-03-10 3:41 ` + userfaultfd-wp-support-swap-and-page-migration.patch " Andrew Morton 2020-03-10 3:41 ` + khugepaged-skip-collapse-if-uffd-wp-detected.patch " Andrew Morton 2020-03-10 3:41 ` + userfaultfd-wp-support-write-protection-for-userfault-vma-range.patch " Andrew Morton 2020-03-10 3:41 ` + userfaultfd-wp-add-the-writeprotect-api-to-userfaultfd-ioctl.patch " Andrew Morton 2020-03-10 3:41 ` + userfaultfd-wp-enabled-write-protection-in-userfaultfd-api.patch " Andrew Morton 2020-03-10 3:42 ` + userfaultfd-wp-dont-wake-up-when-doing-write-protect.patch " Andrew Morton 2020-03-10 3:42 ` + userfaultfd-wp-uffdio_register_mode_wp-documentation-update.patch " Andrew Morton 2020-03-10 3:42 ` + userfaultfd-wp-declare-_uffdio_writeprotect-conditionally.patch " Andrew Morton 2020-03-10 3:42 ` + userfaultfd-selftests-refactor-statistics.patch " Andrew Morton 2020-03-10 3:42 ` + userfaultfd-selftests-add-write-protect-test.patch " Andrew Morton 2020-03-10 23:59 ` + kmod-make-request_module-return-an-error-when-autoloading-is-disabled.patch " Andrew Morton 2020-03-11 0:19 ` + mm-filemapc-remove-unused-argument-from-shrink_readahead_size_eio.patch " Andrew Morton 2020-03-11 22:08 ` + mm-hugetlb-remove-unnecessary-memory-fetch-in-pageheadhuge.patch " Andrew Morton 2020-03-11 22:10 ` + fs_parse-remove-pr_notice-about-each-validation.patch " Andrew Morton 2020-03-11 23:26 ` + mmpage_alloccma-conditionally-prefer-cma-pageblocks-for-movable-allocations-fix.patch " Andrew Morton 2020-03-11 23:29 ` + mm-hugetlb-optionally-allocate-gigantic-hugepages-using-cma.patch " Andrew Morton 2020-03-11 23:33 ` + virtio-balloon-switch-back-to-oom-handler-for-virtio_balloon_f_deflate_on_oom.patch " Andrew Morton 2020-03-11 23:38 ` + kasan-fix-wstringop-overflow-warning.patch " Andrew Morton 2020-03-11 23:42 ` + mm-fix-tick-timer-stall-during-deferred-page-init.patch " Andrew Morton 2020-03-12 0:00 ` + drivers-base-memory-map-mmop_offline-to-0.patch " Andrew Morton 2020-03-12 0:00 ` + drivers-base-memory-store-mapping-between-mmop_-and-string-in-an-array.patch " Andrew Morton 2020-03-12 0:00 ` + mm-memory_hotplug-convert-memhp_auto_online-to-store-an-online_type.patch " Andrew Morton 2020-03-12 0:00 ` + mm-memory_hotplug-allow-to-specify-a-default-online_type.patch " Andrew Morton 2020-03-12 0:18 ` + mm-debug-add-tests-validating-architecture-page-table-helpers.patch " Andrew Morton 2020-03-12 0:25 ` + mm-swap_slotsc-assignreset-cache-slot-by-value-directly.patch " Andrew Morton 2020-03-12 0:25 ` [alternative-merged] mm-swap_slotsc-dont-reset-the-cache-slot-after-use.patch removed from " Andrew Morton 2020-03-12 0:33 ` + mm-introduce-fault_signal_pending-fix.patch added to " Andrew Morton 2020-03-12 0:34 ` [failures] mm-sparsemem-use-wrapped-macros-instead-of-open-coding.patch removed from " Andrew Morton 2020-03-12 1:04 ` + kasan-detect-negative-size-in-memory-operation-function-fix-2.patch added to " Andrew Morton 2020-03-12 1:08 ` + page-flags-fix-a-crash-at-setpageerrorthp_swap.patch " Andrew Morton 2020-03-12 1:11 ` + mm-page_alloc-simplify-page_is_buddy-for-better-code-readability.patch " Andrew Morton 2020-03-12 1:17 ` + mm-special-create-generic-fallbacks-for-pte_special-and-pte_mkspecial-v3.patch " Andrew Morton 2020-03-12 2:40 ` + memcg-fix-null-pointer-dereference-in-__mem_cgroup_usage_unregister_event-fix.patch " Andrew Morton 2020-03-12 2:58 ` + list-prevent-compiler-reloads-inside-safe-list-iteration.patch " Andrew Morton 2020-03-14 14:13 ` Paul E. McKenney 2020-03-12 3:14 ` + mm-clarify-a-confusing-comment-of-remap_pfn_range.patch " Andrew Morton 2020-03-12 4:12 ` mmotm 2020-03-11-21-11 uploaded Andrew Morton 2020-03-12 15:03 ` mmotm 2020-03-11-21-11 uploaded (sound/soc/codecs/wcd9335.c) Randy Dunlap 2020-03-12 16:59 ` Srinivas Kandagatla 2020-03-13 4:52 ` Masahiro Yamada 2020-03-13 4:52 ` Masahiro Yamada 2020-03-12 22:29 ` + fs-filesystemsc-downgrade-user-reachable-warn_once-to-pr_warn_once.patch added to -mm tree Andrew Morton 2020-03-12 22:29 ` + docs-admin-guide-document-the-kernelmodprobe-sysctl.patch " Andrew Morton 2020-03-12 22:29 ` + selftests-kmod-test-disabling-module-autoloading.patch " Andrew Morton 2020-03-12 22:35 ` + mm-memcg-fix-corruption-on-64-bit-divisor-in-memoryhigh-throttling.patch " Andrew Morton 2020-03-12 22:35 ` + mm-memcg-throttle-allocators-based-on-ancestral-memoryhigh.patch " Andrew Morton 2020-03-12 22:44 ` + mm-memcg-prevent-memoryhigh-load-store-tearing.patch " Andrew Morton 2020-03-12 22:45 ` + mm-memcg-prevent-memorymax-load-tearing.patch " Andrew Morton 2020-03-12 22:45 ` + mm-memcg-prevent-memorylow-load-store-tearing.patch " Andrew Morton 2020-03-12 22:45 ` + mm-memcg-prevent-memorymin-load-store-tearing.patch " Andrew Morton 2020-03-12 22:45 ` + mm-memcg-prevent-memoryswapmax-load-tearing.patch " Andrew Morton 2020-03-12 22:45 ` + mm-memcg-prevent-mem_cgroup_protected-store-tearing.patch " Andrew Morton 2020-03-12 22:46 ` + mm-memcg-bypass-high-reclaim-iteration-for-cgroup-hierarchy-root.patch " Andrew Morton 2020-03-12 22:47 ` [failures] hugetlbfs-use-i_mmap_rwsem-for-more-pmd-sharing-synchronization.patch removed from " Andrew Morton 2020-03-12 22:47 ` [failures] hugetlbfs-use-i_mmap_rwsem-to-address-page-fault-truncate-race.patch " Andrew Morton 2020-03-12 22:53 ` + mm-sparsec-use-kvmalloc_node-kvfree-to-alloc-free-memmap-for-the-classic-sparse.patch added to " Andrew Morton 2020-03-12 23:41 ` + mm-sparsec-introduce-new-function-fill_subsection_map.patch " Andrew Morton 2020-03-12 23:41 ` + mm-sparsec-introduce-a-new-function-clear_subsection_map.patch " Andrew Morton 2020-03-12 23:41 ` + mm-sparsec-only-use-subsection-map-in-vmemmap-case.patch " Andrew Morton 2020-03-12 23:41 ` + mm-sparsec-add-note-about-only-vmemmap-supporting-sub-section-hotplug.patch " Andrew Morton 2020-03-12 23:41 ` + mm-sparsec-move-subsection_map-related-functions-together.patch " Andrew Morton 2020-03-12 23:43 ` + mm-make-may_enter_fs-bool-in-shrink_page_list.patch " Andrew Morton 2020-03-12 23:44 ` + stackdepot-check-depot_index-before-accessing-the-stack-slab-fix.patch " Andrew Morton 2020-03-13 0:26 ` Andrew Morton [this message] 2020-03-13 0:26 ` + mm-do-not-allow-madv_pageout-for-cow-pages.patch " Andrew Morton 2020-03-13 0:32 ` + mm-gup-track-foll_pin-pages-fix-2-fix.patch " Andrew Morton 2020-03-13 3:05 ` + a.patch " Andrew Morton 2020-03-13 3:05 ` + mm-hugetlb-optionally-allocate-gigantic-hugepages-using-cma-fix.patch " Andrew Morton 2020-03-13 3:13 ` + kasan-stackdepot-move-filter_irq_stacks-to-stackdepotc-fix-1.patch " Andrew Morton 2020-03-13 3:13 ` + kasan-stackdepot-move-filter_irq_stacks-to-stackdepotc-fix-2.patch " Andrew Morton 2020-03-13 3:25 ` + selftests-vm-fix-map_hugetlb-length-used-for-testing-read-and-write.patch " Andrew Morton 2020-03-13 4:49 ` mmotm 2020-03-12-21-49 uploaded Andrew Morton 2020-03-18 2:58 ` + proc-inline-vma_stop-into-m_stop.patch added to -mm tree Andrew Morton 2020-03-18 2:58 ` + proc-remove-m_cache_vma.patch " Andrew Morton 2020-03-18 2:58 ` + proc-use-ppos-instead-of-m-version.patch " Andrew Morton 2020-03-18 2:58 ` + seq_file-remove-m-version.patch " Andrew Morton 2020-03-18 2:58 ` + proc-inline-m_next_vma-into-m_next.patch " Andrew Morton 2020-03-18 2:59 ` + mm-kmemleak-silence-kcsan-splats-in-checksum.patch " Andrew Morton 2020-03-18 3:07 ` + mm-swap-make-page_evictable-inline.patch " Andrew Morton 2020-03-18 3:07 ` + mm-swap-use-smp_mb__after_atomic-to-order-lru-bit-set.patch " Andrew Morton 2020-03-18 3:12 ` + mm-mmu_notifier-silence-prove_rcu_list-warnings.patch " Andrew Morton 2020-03-18 3:19 ` + lib-test_lockup-test-module-to-generate-lockups-fix.patch " Andrew Morton 2020-03-18 3:25 ` + ocfs2-roll-back-the-reference-count-modification-of-the-parent-directory-if-an-error-occurs.patch " Andrew Morton 2020-03-18 4:08 ` + hv_balloon-dont-check-for-memhp_auto_online-manually-fix.patch " Andrew Morton 2020-03-18 4:08 ` + drivers-base-memory-rename-mmop_online_keep-to-mmop_online.patch " Andrew Morton 2020-03-18 4:08 ` + drivers-base-memory-map-mmop_offline-to-0.patch " Andrew Morton 2020-03-18 4:08 ` + drivers-base-memory-store-mapping-between-mmop_-and-string-in-an-array.patch " Andrew Morton 2020-03-18 4:08 ` + powernv-memtrace-always-online-added-memory-blocks.patch " Andrew Morton 2020-03-18 4:08 ` + hv_balloon-dont-check-for-memhp_auto_online-manually.patch " Andrew Morton 2020-03-18 4:08 ` + hv_balloon-dont-check-for-memhp_auto_online-manually-fix.patch " Andrew Morton 2020-03-18 4:08 ` + mm-memory_hotplug-unexport-memhp_auto_online.patch " Andrew Morton 2020-03-18 4:08 ` + mm-memory_hotplug-convert-memhp_auto_online-to-store-an-online_type.patch " Andrew Morton 2020-03-18 4:08 ` + mm-memory_hotplug-allow-to-specify-a-default-online_type.patch " Andrew Morton 2020-03-18 4:57 ` + mm-code-cleanup-for-madv_free.patch " Andrew Morton 2020-03-18 5:02 ` + mm-hugetlb-fix-build-failure-with-hugetlb_page-but-not-hugebtlbfs.patch " Andrew Morton 2020-03-18 20:21 ` + mm-compactionc-clean-code-by-removing-unnecessary-assignment.patch " Andrew Morton 2020-03-18 20:31 ` + mm-hugetlb-fix-hugetlb_cma_reserve-if-config_numa-isnt-set.patch " Andrew Morton 2020-03-18 20:39 ` + mm-clarify-a-confusing-comment-for-vm_iomap_memory.patch " Andrew Morton 2020-03-18 21:03 ` + psi-move-pf_memstall-out-of-task-flags.patch " Andrew Morton 2020-03-18 21:08 ` + ocfs2-use-scnprintf-for-avoiding-potential-buffer-overflow.patch " Andrew Morton 2020-03-18 21:12 ` + mm-memcg-make-memoryoomgroup-tolerable-to-task-migration.patch " Andrew Morton 2020-03-18 21:14 ` [to-be-updated] mm-swap-make-page_evictable-inline.patch removed from " Andrew Morton 2020-03-18 21:14 ` [to-be-updated] mm-swap-use-smp_mb__after_atomic-to-order-lru-bit-set.patch " Andrew Morton 2020-03-18 21:19 ` + memremap-remove-stale-comments.patch added to " Andrew Morton 2020-03-18 21:30 ` + hugetlbfs-use-i_mmap_rwsem-for-more-pmd-sharing-synchronization.patch " Andrew Morton 2020-03-18 21:30 ` + hugetlbfs-use-i_mmap_rwsem-to-address-page-fault-truncate-race.patch " Andrew Morton 2020-03-20 23:36 ` + mm-dmapoolc-micro-optimisation-remove-unnecessary-branch.patch " Andrew Morton 2020-03-20 23:48 ` + mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch " Andrew Morton 2020-03-20 23:48 ` Andrew Morton 2020-03-20 23:48 ` + revert-topology-add-support-for-node_to_mem_node-to-determine-the-fallback-node.patch " Andrew Morton 2020-03-20 23:55 ` + mmap-remove-inline-of-vm_unmapped_area.patch " Andrew Morton 2020-03-20 23:55 ` + mm-mmap-add-trace-point-of-vm_unmapped_area.patch " Andrew Morton 2020-03-21 0:23 ` [to-be-updated] kcov-cleanup-debug-messages.patch removed from " Andrew Morton 2020-03-21 0:23 ` [to-be-updated] kcov-collect-coverage-from-interrupts.patch " Andrew Morton 2020-03-21 0:23 ` [to-be-updated] usb-core-kcov-collect-coverage-from-usb-complete-callback.patch " Andrew Morton 2020-03-21 0:27 ` + kcov-cleanup-debug-messages.patch added to " Andrew Morton 2020-03-21 0:27 ` + kcov-fix-potential-use-after-free-in-kcov_remote_start.patch " Andrew Morton 2020-03-21 0:27 ` + kcov-move-t-kcov-assignments-into-kcov_start-stop.patch " Andrew Morton 2020-03-21 0:27 ` + kcov-move-t-kcov_sequence-assignment.patch " Andrew Morton 2020-03-21 0:27 ` + kcov-use-t-kcov_mode-as-enabled-indicator.patch " Andrew Morton 2020-03-21 0:27 ` + kcov-collect-coverage-from-interrupts.patch " Andrew Morton 2020-03-21 0:27 ` + usb-core-kcov-collect-coverage-from-usb-complete-callback.patch " Andrew Morton 2020-03-21 0:40 ` + dynamic_debug-use-address-of-operator-on-section-symbols.patch " Andrew Morton 2020-03-21 0:45 ` + mm-vmscanc-do_try_to_free_pages-clean-code-by-removing-unnecessary-assignment.patch " Andrew Morton 2020-03-21 0:54 ` + mm-compaction-disable-compact_unevictable_allowed-on-rt-v5.patch " Andrew Morton 2020-03-21 1:22 ` + mm-swap-make-page_evictable-inline.patch " Andrew Morton 2020-03-21 1:22 ` + mm-swap-use-smp_mb__after_atomic-to-order-lru-bit-set.patch " Andrew Morton 2020-03-21 2:07 ` + sparcx86-vdso-remove-meaningless-undefining-config_optimize_inlining.patch " Andrew Morton 2020-03-21 2:07 ` + compiler-remove-config_optimize_inlining-entirely.patch " Andrew Morton 2020-03-21 2:13 ` + mm-swap-make-page_evictable-inline-fix.patch " Andrew Morton 2020-03-21 2:23 ` + selftests-kmod-fix-handling-test-numbers-above-9.patch " Andrew Morton 2020-03-21 2:42 ` + mm-hugetlbc-fix-printk-format-warning-for-32-bit-phys_addr_t.patch " Andrew Morton 2020-03-21 2:42 ` + mm-hugetlbc-fix-printk-format-warning-for-32-bit-phys_addr_t-fix.patch " Andrew Morton 2020-03-21 2:48 ` [to-be-updated] mm-sparsec-use-kvmalloc_node-kvfree-to-alloc-free-memmap-for-the-classic-sparse.patch removed from " Andrew Morton 2020-03-21 2:48 ` + mm-sparsec-use-kvmalloc-kvfree-to-alloc-free-memmap-for-the-classic-sparse.patch added to " Andrew Morton 2020-03-21 3:05 ` + mm-memory_hotplug-use-__pfn_to_section-instead-of-open-coding.patch " Andrew Morton 2020-03-21 20:24 ` + mm-swap_statec-use-the-same-way-to-count-page-in-_swap_cache.patch " Andrew Morton 2020-03-21 20:36 ` + change-email-address-for-pali-rohar.patch " Andrew Morton 2020-03-21 20:41 ` + hugetlb_cgroup-fix-illegal-access-to-memory.patch " Andrew Morton 2020-03-21 20:43 ` + scripts-spellingtxt-add-more-spellings-to-spellingtxt.patch " Andrew Morton 2020-03-21 21:14 ` + mm-sparsec-move-subsection_map-related-functions-together-fix.patch " Andrew Morton 2020-03-21 22:17 ` mmotm 2020-03-21-15-17 uploaded Andrew Morton
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