A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 02:32:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

memcontrol: schedule throttling if we are congested

Browse source 
Memory allocations can induce swapping via kswapd or direct reclaim.  If
we are having IO done for us by kswapd and don't actually go into direct
reclaim we may never get scheduled for throttling.  So instead check to
see if our cgroup is congested, and if so schedule the throttling.
Before we return to user space the throttling stuff will only throttle
if we actually required it.

Signed-off-by: Tejun Heo <[email protected]>
Signed-off-by: Josef Bacik <[email protected]>
Acked-by: Johannes Weiner <[email protected]>
Acked-by: Andrew Morton <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Tejun Heo 2018-07-03 11:14:56 -04:00 • committed by Jens Axboe
commit 2cf855837b
7 changed files with 81 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

13
mm/memcontrol.c
View file

@ -5593,6 +5593,19 @@ out:
return ret;
}
int mem_cgroup_try_charge_delay(struct page *page, struct mm_struct *mm,
gfp_t gfp_mask, struct mem_cgroup **memcgp,
bool compound)
{
struct mem_cgroup *memcg;
int ret;
ret = mem_cgroup_try_charge(page, mm, gfp_mask, memcgp, compound);
memcg = *memcgp;
mem_cgroup_throttle_swaprate(memcg, page_to_nid(page), gfp_mask);
return ret;
}
/**
* mem_cgroup_commit_charge - commit a page charge
* @page: page to charge