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SubjectRe: [PATCH] mm: thp: don't have to lock page anymore when splitting PMD
On 07.03.22 03:07, Andrew Morton wrote:
> On Fri, 4 Mar 2022 19:50:08 +0100 David Hildenbrand <david@redhat.com> wrote:
>
>> @Andrew, the last mail I received was
>>
>> + mm-huge_memory-remove-stale-locking-logic-from-__split_huge_pmd.patch
>> added to -mm tree
>>
>> The patch shows up in mmotm as
>>
>> #[merged]mm-huge_memory-remove-stale-locking-logic-from-__split_huge_pmd.patch
>>
>> ... which shouldn't be true.
>
> I guess I mislabelled the reason for dropping it. Should have been to-be-updated,
> due to https://lkml.kernel.org/r/CAHbLzkpbnQyHRckoRtbZoaLvANu92MY4kEsbKudaQ8MDUA3nVg@mail.gmail.com
>

Let me clarify.

1. I sent [1] (9 patches)

2. You queued the 9 patches

E.g., in "mmotm 2022-02-15-20-22 uploaded"

* mm-optimize-do_wp_page-for-exclusive-pages-in-the-swapcache.patch
* mm-optimize-do_wp_page-for-fresh-pages-in-local-lru-pagevecs.patch
* mm-slightly-clarify-ksm-logic-in-do_swap_page.patch
* mm-streamline-cow-logic-in-do_swap_page.patch
* mm-huge_memory-streamline-cow-logic-in-do_huge_pmd_wp_page.patch
* mm-khugepaged-remove-reuse_swap_page-usage.patch
* mm-swapfile-remove-stale-reuse_swap_page.patch
* mm-huge_memory-remove-stale-page_trans_huge_mapcount.patch
* mm-huge_memory-remove-stale-locking-logic-from-__split_huge_pmd.patch

3. The last patch in the series was dropped. What remains are 8 patches.

E.g., in "mmotm 2022-02-24-22-38 uploaded"

* mm-optimize-do_wp_page-for-exclusive-pages-in-the-swapcache.patch
* mm-optimize-do_wp_page-for-fresh-pages-in-local-lru-pagevecs.patch
* mm-slightly-clarify-ksm-logic-in-do_swap_page.patch
* mm-streamline-cow-logic-in-do_swap_page.patch
* mm-huge_memory-streamline-cow-logic-in-do_huge_pmd_wp_page.patch
* mm-khugepaged-remove-reuse_swap_page-usage.patch
* mm-swapfile-remove-stale-reuse_swap_page.patch
* mm-huge_memory-remove-stale-page_trans_huge_mapcount.patch

4. Yang Shi sent his patch (the one we're replying to)

5. You picked his patch and dropped it again due to [2]


I'm wondering why 3 happened and why
https://www.ozlabs.org/~akpm/mmotm/series contains:


mm-optimize-do_wp_page-for-exclusive-pages-in-the-swapcache.patch
mm-optimize-do_wp_page-for-fresh-pages-in-local-lru-pagevecs.patch
mm-slightly-clarify-ksm-logic-in-do_swap_page.patch
mm-streamline-cow-logic-in-do_swap_page.patch
mm-huge_memory-streamline-cow-logic-in-do_huge_pmd_wp_page.patch
mm-khugepaged-remove-reuse_swap_page-usage.patch
mm-swapfile-remove-stale-reuse_swap_page.patch
mm-huge_memory-remove-stale-page_trans_huge_mapcount.patch
...
#[merged]mm-huge_memory-remove-stale-locking-logic-from-__split_huge_pmd.patch


[1]
https://lore.kernel.org/linux-mm/20220131162940.210846-1-david@redhat.com/

[2]
https://lkml.kernel.org/r/CAHbLzkpbnQyHRckoRtbZoaLvANu92MY4kEsbKudaQ8MDUA3nVg@mail.gmail.com

--
Thanks,

David / dhildenb

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