Re: [PATCH 0/3] OOM detection rework v4

From: Tetsuo Handa
Date: Fri Mar 11 2016 - 08:32:12 EST

Michal Hocko wrote:
> On Fri 11-03-16 19:45:29, Tetsuo Handa wrote:
> > (Posting as a reply to this thread.)
> I really do not see how this is related to this thread.

All allocating tasks are looping at

* If we didn't make any progress and have a lot of
* dirty + writeback pages then we should wait for
* an IO to complete to slow down the reclaim and
* prevent from pre mature OOM
if (!did_some_progress && 2*(writeback + dirty) > reclaimable) {
congestion_wait(BLK_RW_ASYNC, HZ/10);
return true;

in should_reclaim_retry().

should_reclaim_retry() was added by OOM detection rework, wan't it?