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| author | Linus Walleij <linus.walleij@linaro.org> | 2020-11-17 22:23:05 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2020-11-17 22:23:05 +0100 |
| commit | ad9a72f9c6fd3998f0080701f1cc1f43a4317b7c (patch) | |
| tree | dd53a560a1523f5dcd9823b29ae92bdcc0b7da4d /mm/compaction.c | |
| parent | b9bf97105f4b9adc32604d24072147b242564fb3 (diff) | |
| parent | 09162bc32c880a791c6c0668ce0745cf7958f576 (diff) | |
Merge tag 'v5.10-rc4' into devel
Linux 5.10-rc4
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 6e0ee5641788..13cb7a961b31 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -817,6 +817,10 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, * delay for some time until fewer pages are isolated */ while (unlikely(too_many_isolated(pgdat))) { + /* stop isolation if there are still pages not migrated */ + if (cc->nr_migratepages) + return 0; + /* async migration should just abort */ if (cc->mode == MIGRATE_ASYNC) return 0; @@ -1012,8 +1016,8 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, isolate_success: list_add(&page->lru, &cc->migratepages); - cc->nr_migratepages++; - nr_isolated++; + cc->nr_migratepages += compound_nr(page); + nr_isolated += compound_nr(page); /* * Avoid isolating too much unless this block is being @@ -1021,7 +1025,7 @@ isolate_success: * or a lock is contended. For contention, isolate quickly to * potentially remove one source of contention. */ - if (cc->nr_migratepages == COMPACT_CLUSTER_MAX && + if (cc->nr_migratepages >= COMPACT_CLUSTER_MAX && !cc->rescan && !cc->contended) { ++low_pfn; break; @@ -1132,7 +1136,7 @@ isolate_migratepages_range(struct compact_control *cc, unsigned long start_pfn, if (!pfn) break; - if (cc->nr_migratepages == COMPACT_CLUSTER_MAX) + if (cc->nr_migratepages >= COMPACT_CLUSTER_MAX) break; } |