diff options
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 0758afd6325d..7a2675dbf3cc 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1219,7 +1219,7 @@ move_freelist_tail(struct list_head *freelist, struct page *freepage) } static void -fast_isolate_around(struct compact_control *cc, unsigned long pfn, unsigned long nr_isolated) +fast_isolate_around(struct compact_control *cc, unsigned long pfn) { unsigned long start_pfn, end_pfn; struct page *page = pfn_to_page(pfn); @@ -1236,21 +1236,13 @@ fast_isolate_around(struct compact_control *cc, unsigned long pfn, unsigned long start_pfn = pageblock_start_pfn(pfn); end_pfn = min(pageblock_end_pfn(pfn), zone_end_pfn(cc->zone)) - 1; - /* Scan before */ - if (start_pfn != pfn) { - isolate_freepages_block(cc, &start_pfn, pfn, &cc->freepages, 1, false); - if (cc->nr_freepages >= cc->nr_migratepages) - return; - } - - /* Scan after */ - start_pfn = pfn + nr_isolated; - if (start_pfn < end_pfn) - isolate_freepages_block(cc, &start_pfn, end_pfn, &cc->freepages, 1, false); + isolate_freepages_block(cc, &start_pfn, end_pfn, &cc->freepages, 1, false); /* Skip this pageblock in the future as it's full or nearly full */ if (cc->nr_freepages < cc->nr_migratepages) set_pageblock_skip(page); + + return; } /* Search orders in round-robin fashion */ @@ -1422,7 +1414,7 @@ fast_isolate_freepages(struct compact_control *cc) return cc->free_pfn; low_pfn = page_to_pfn(page); - fast_isolate_around(cc, low_pfn, nr_isolated); + fast_isolate_around(cc, low_pfn); return low_pfn; } |