search for: pmd_migrat

Displaying 4 results from an estimated 4 matches for "pmd_migrat".

2020 Sep 02
0
[PATCH v2 1/7] mm/thp: fix __split_huge_pmd_locked() for migration PMD
...tomic_inc(&page[i]._mapcount); - pte_unmap(pte); - } - - /* - * Set PG_double_map before dropping compound_mapcount to avoid - * false-negative page_mapped(). - */ - if (compound_mapcount(page) > 1 && !TestSetPageDoubleMap(page)) { - for (i = 0; i < HPAGE_PMD_NR; i++) + if (!pmd_migration) atomic_inc(&page[i]._mapcount); + pte_unmap(pte); } - lock_page_memcg(page); - if (atomic_add_negative(-1, compound_mapcount_ptr(page))) { - /* Last compound_mapcount is gone. */ - __dec_lruvec_page_state(page, NR_ANON_THPS); - if (TestClearPageDoubleMap(page)) { - /* No need...
2020 Sep 02
1
[PATCH v2 1/7] mm/thp: fix __split_huge_pmd_locked() for migration PMD
...ap(pte); > - } > - > - /* > - * Set PG_double_map before dropping compound_mapcount to avoid > - * false-negative page_mapped(). > - */ > - if (compound_mapcount(page) > 1 && !TestSetPageDoubleMap(page)) { > - for (i = 0; i < HPAGE_PMD_NR; i++) > + if (!pmd_migration) > atomic_inc(&page[i]._mapcount); > + pte_unmap(pte); > } > > - lock_page_memcg(page); > - if (atomic_add_negative(-1, compound_mapcount_ptr(page))) { > - /* Last compound_mapcount is gone. */ > - __dec_lruvec_page_state(page, NR_ANON_THPS); > - if (Test...
2020 Sep 03
1
[PATCH v3] mm/thp: fix __split_huge_pmd_locked() for migration PMD
...tomic_inc(&page[i]._mapcount); - pte_unmap(pte); - } - - /* - * Set PG_double_map before dropping compound_mapcount to avoid - * false-negative page_mapped(). - */ - if (compound_mapcount(page) > 1 && !TestSetPageDoubleMap(page)) { - for (i = 0; i < HPAGE_PMD_NR; i++) + if (!pmd_migration) atomic_inc(&page[i]._mapcount); + pte_unmap(pte); } - lock_page_memcg(page); - if (atomic_add_negative(-1, compound_mapcount_ptr(page))) { - /* Last compound_mapcount is gone. */ - __dec_lruvec_page_state(page, NR_ANON_THPS); - if (TestClearPageDoubleMap(page)) { - /* No need...
2020 Sep 02
10
[PATCH v2 0/7] mm/hmm/nouveau: add THP migration to migrate_vma_*
This series adds support for transparent huge page migration to migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers. An earlier version was posted previously [1]. This version now supports splitting a THP midway in the migration process which led to a number of changes. The patches apply cleanly to the current linux-mm tree. Since there are a couple of patches in linux-mm from Dan