Re: [PATCH 3/3 v3] memory-hotplug: fix kswapd looping forever problem

2012-07-19 Thread Kamezawa Hiroyuki
From: Andrew Morton Subject: memory-hotplug-fix-kswapd-looping-forever-problem-fix simplify nr_zone_isolate_freepages(), rework zone_watermark_ok_safe() comment, simplify set_pageblock_isolate() and restore_pageblock_isolate(). Cc: Aaditya Kumar Cc: KAMEZAWA Hiroyuki Cc: Mel Gorman Cc:

Re: [PATCH 3/3 v3] memory-hotplug: fix kswapd looping forever problem

2012-07-19 Thread Kamezawa Hiroyuki
From: Andrew Morton a...@linux-foundation.org Subject: memory-hotplug-fix-kswapd-looping-forever-problem-fix simplify nr_zone_isolate_freepages(), rework zone_watermark_ok_safe() comment, simplify set_pageblock_isolate() and restore_pageblock_isolate(). Cc: Aaditya Kumar

Re: [PATCH 3/3 v3] memory-hotplug: fix kswapd looping forever problem

2012-07-12 Thread Minchan Kim
On Thu, Jul 12, 2012 at 02:01:54PM -0700, Andrew Morton wrote: > On Thu, 12 Jul 2012 11:50:49 +0900 > Minchan Kim wrote: > > > When hotplug offlining happens on zone A, it starts to mark freed page > > as MIGRATE_ISOLATE type in buddy for preventing further allocation. > > (MIGRATE_ISOLATE is

Re: [PATCH 3/3 v3] memory-hotplug: fix kswapd looping forever problem

2012-07-12 Thread Andrew Morton
On Thu, 12 Jul 2012 11:50:49 +0900 Minchan Kim wrote: > When hotplug offlining happens on zone A, it starts to mark freed page > as MIGRATE_ISOLATE type in buddy for preventing further allocation. > (MIGRATE_ISOLATE is very irony type because it's apparently on buddy > but we can't allocate

Re: [PATCH 3/3 v3] memory-hotplug: fix kswapd looping forever problem

2012-07-12 Thread Minchan Kim
On Thu, Jul 12, 2012 at 02:01:54PM -0700, Andrew Morton wrote: On Thu, 12 Jul 2012 11:50:49 +0900 Minchan Kim minc...@kernel.org wrote: When hotplug offlining happens on zone A, it starts to mark freed page as MIGRATE_ISOLATE type in buddy for preventing further allocation.

Re: [PATCH 3/3 v3] memory-hotplug: fix kswapd looping forever problem

2012-07-12 Thread Andrew Morton
On Thu, 12 Jul 2012 11:50:49 +0900 Minchan Kim minc...@kernel.org wrote: When hotplug offlining happens on zone A, it starts to mark freed page as MIGRATE_ISOLATE type in buddy for preventing further allocation. (MIGRATE_ISOLATE is very irony type because it's apparently on buddy but we can't

[PATCH 3/3 v3] memory-hotplug: fix kswapd looping forever problem

2012-07-11 Thread Minchan Kim
When hotplug offlining happens on zone A, it starts to mark freed page as MIGRATE_ISOLATE type in buddy for preventing further allocation. (MIGRATE_ISOLATE is very irony type because it's apparently on buddy but we can't allocate them). When the memory shortage happens during hotplug offlining,

[PATCH 3/3 v3] memory-hotplug: fix kswapd looping forever problem

2012-07-11 Thread Minchan Kim
When hotplug offlining happens on zone A, it starts to mark freed page as MIGRATE_ISOLATE type in buddy for preventing further allocation. (MIGRATE_ISOLATE is very irony type because it's apparently on buddy but we can't allocate them). When the memory shortage happens during hotplug offlining,