diff options
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 216081ab325a..38c8d216c6a3 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -933,11 +933,12 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, /* * Check if the pageblock has already been marked skipped. - * Only the aligned PFN is checked as the caller isolates + * Only the first PFN is checked as the caller isolates * COMPACT_CLUSTER_MAX at a time so the second call must * not falsely conclude that the block should be skipped. */ - if (!valid_page && pageblock_aligned(low_pfn)) { + if (!valid_page && (pageblock_aligned(low_pfn) || + low_pfn == cc->zone->zone_start_pfn)) { if (!isolation_suitable(cc, page)) { low_pfn = end_pfn; folio = NULL; @@ -2030,7 +2031,8 @@ static isolate_migrate_t isolate_migratepages(struct compact_control *cc) * before making it "skip" so other compaction instances do * not scan the same block. */ - if (pageblock_aligned(low_pfn) && + if ((pageblock_aligned(low_pfn) || + low_pfn == cc->zone->zone_start_pfn) && !fast_find_block && !isolation_suitable(cc, page)) continue; |