Re: [patch 3/3] mm: memcontrol: continue cache reclaim from offlined groups

2014-10-08 Thread Michal Hocko
On Sat 20-09-14 16:00:35, Johannes Weiner wrote: > On cgroup deletion, outstanding page cache charges are moved to the > parent group so that they're not lost and can be reclaimed during > pressure on/inside said parent. But this reparenting is fairly tricky > and its synchroneous nature has led t

Re: [patch 3/3] mm: memcontrol: continue cache reclaim from offlined groups

2014-09-22 Thread Vladimir Davydov
On Sat, Sep 20, 2014 at 04:00:35PM -0400, Johannes Weiner wrote: > On cgroup deletion, outstanding page cache charges are moved to the > parent group so that they're not lost and can be reclaimed during > pressure on/inside said parent. But this reparenting is fairly tricky > and its synchroneous

[patch 3/3] mm: memcontrol: continue cache reclaim from offlined groups

2014-09-20 Thread Johannes Weiner
On cgroup deletion, outstanding page cache charges are moved to the parent group so that they're not lost and can be reclaimed during pressure on/inside said parent. But this reparenting is fairly tricky and its synchroneous nature has led to several lock-ups in the past. Since css iterators now