/* Pageblock boundaries */
start_pfn = pageblock_start_pfn(pfn);
- end_pfn = min(start_pfn + pageblock_nr_pages, zone_end_pfn(cc->zone));
+ end_pfn = min(pageblock_end_pfn(pfn), zone_end_pfn(cc->zone)) - 1;
/* Scan before */
if (start_pfn != pfn) {
/* Scan after */
start_pfn = pfn + nr_isolated;
- if (start_pfn != end_pfn)
+ if (start_pfn < end_pfn)
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 */