On Thu, Jun 06, 2019 at 03:44:24PM +0100, Mel Gorman wrote: > > (I applied the patch on top of e577c8b64d58fe307ea4d5149d31615df2d90861, > > right?) > > Please try the following on top of 5.2-rc3 > > diff --git a/mm/compaction.c b/mm/compaction.c > index 9e1b9acb116b..69f4ddfddfa4 100644 > --- a/mm/compaction.c > +++ b/mm/compaction.c > @@ -277,8 +277,7 @@ __reset_isolation_pfn(struct zone *zone, unsigned long pfn, bool check_source, > } > > /* Ensure the end of the pageblock or zone is online and valid */ > - block_pfn += pageblock_nr_pages; > - block_pfn = min(block_pfn, zone_end_pfn(zone) - 1); > + block_pfn = min(pageblock_end_pfn(block_pfn), zone_end_pfn(zone) - 1); > end_page = pfn_to_online_page(block_pfn); > if (!end_page) > return false; > @@ -289,7 +288,7 @@ __reset_isolation_pfn(struct zone *zone, unsigned long pfn, bool check_source, > * is necessary for the block to be a migration source/target. > */ > do { > - if (pfn_valid_within(pfn)) { > + if (pfn_valid(pfn)) { > if (check_source && PageLRU(page)) { > clear_pageblock_skip(page); > return true; Any news with this patch? -- Mel Gorman SUSE Labs