diff options
| -rw-r--r-- | mm/compaction.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index ec74cf0123ef..4f0151cfd238 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -479,6 +479,16 @@ isolate_freepages_range(struct compact_control *cc, block_end_pfn = min(block_end_pfn, end_pfn); + /* + * pfn could pass the block_end_pfn if isolated freepage + * is more than pageblock order. In this case, we adjust + * scanning range to right one. + */ + if (pfn >= block_end_pfn) { + block_end_pfn = ALIGN(pfn + 1, pageblock_nr_pages); + block_end_pfn = min(block_end_pfn, end_pfn); + } + if (!pageblock_pfn_to_page(pfn, block_end_pfn, cc->zone)) break; |