Re: [PATCH 2/2] mm/compaction: fix to initialize free scanner properly

2014-04-07 Thread Vlastimil Babka
On 04/03/2014 10:57 AM, Heesub Shin wrote: Free scanner does not works well on systems having zones which do not span to pageblock-aligned boundary. zone->compact_cached_free_pfn is reset when the migration and free scanner across or compaction restarts. After the reset, if end_pfn of the zone

Re: [PATCH 2/2] mm/compaction: fix to initialize free scanner properly

2014-04-07 Thread Vlastimil Babka
On 04/03/2014 10:57 AM, Heesub Shin wrote: Free scanner does not works well on systems having zones which do not span to pageblock-aligned boundary. zone-compact_cached_free_pfn is reset when the migration and free scanner across or compaction restarts. After the reset, if end_pfn of the zone

[PATCH 2/2] mm/compaction: fix to initialize free scanner properly

2014-04-03 Thread Heesub Shin
Free scanner does not works well on systems having zones which do not span to pageblock-aligned boundary. zone->compact_cached_free_pfn is reset when the migration and free scanner across or compaction restarts. After the reset, if end_pfn of the zone was not aligned to pageblock_nr_pages, free

[PATCH 2/2] mm/compaction: fix to initialize free scanner properly

2014-04-03 Thread Heesub Shin
Free scanner does not works well on systems having zones which do not span to pageblock-aligned boundary. zone-compact_cached_free_pfn is reset when the migration and free scanner across or compaction restarts. After the reset, if end_pfn of the zone was not aligned to pageblock_nr_pages, free