Re: [PATCH] vmpressure: Fix subtree pressure detection

2016-02-01 Thread Andrew Morton
On Fri, 29 Jan 2016 11:37:49 +0300 Vladimir Davydov wrote: > On Thu, Jan 28, 2016 at 08:24:30PM +0100, Vlastimil Babka wrote: > > On 28.1.2016 16:55, Michal Hocko wrote: > > > On Wed 27-01-16 19:28:57, Vladimir Davydov wrote: > > >> When vmpressure is called for the entire subtree under pressure

Re: [PATCH] vmpressure: Fix subtree pressure detection

2016-01-29 Thread Vladimir Davydov
On Thu, Jan 28, 2016 at 08:24:30PM +0100, Vlastimil Babka wrote: > On 28.1.2016 16:55, Michal Hocko wrote: > > On Wed 27-01-16 19:28:57, Vladimir Davydov wrote: > >> When vmpressure is called for the entire subtree under pressure we > >> mistakenly use vmpressure->scanned instead of vmpressure->tre

Re: [PATCH] vmpressure: Fix subtree pressure detection

2016-01-28 Thread Vlastimil Babka
On 28.1.2016 16:55, Michal Hocko wrote: > On Wed 27-01-16 19:28:57, Vladimir Davydov wrote: >> When vmpressure is called for the entire subtree under pressure we >> mistakenly use vmpressure->scanned instead of vmpressure->tree_scanned >> when checking if vmpressure work is to be scheduled. This re

Re: [PATCH] vmpressure: Fix subtree pressure detection

2016-01-28 Thread Michal Hocko
On Wed 27-01-16 19:28:57, Vladimir Davydov wrote: > When vmpressure is called for the entire subtree under pressure we > mistakenly use vmpressure->scanned instead of vmpressure->tree_scanned > when checking if vmpressure work is to be scheduled. This results in > suppressing all vmpressure events

Re: [PATCH] vmpressure: Fix subtree pressure detection

2016-01-27 Thread Johannes Weiner
On Wed, Jan 27, 2016 at 07:28:57PM +0300, Vladimir Davydov wrote: > When vmpressure is called for the entire subtree under pressure we > mistakenly use vmpressure->scanned instead of vmpressure->tree_scanned > when checking if vmpressure work is to be scheduled. This results in > suppressing all vm

[PATCH] vmpressure: Fix subtree pressure detection

2016-01-27 Thread Vladimir Davydov
When vmpressure is called for the entire subtree under pressure we mistakenly use vmpressure->scanned instead of vmpressure->tree_scanned when checking if vmpressure work is to be scheduled. This results in suppressing all vmpressure events in the legacy cgroup hierarchy. Fix it. Fixes: 8e8ae64524