[lkml]   [2017]   [Nov]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 1/2] mm,vmscan: Kill global shrinker lock.
On Fri 17-11-17 09:35:21, Christoph Hellwig wrote:
> On Tue, Nov 14, 2017 at 06:37:42AM +0900, Tetsuo Handa wrote:
> > Since do_shrink_slab() can reschedule, we cannot protect shrinker_list
> > using one RCU section. But using atomic_inc()/atomic_dec() for each
> > do_shrink_slab() call will not impact so much.
> But you could use SRCU..

Davidlohr has tried that already
and failed. Doing SRCU inside core kernel is not seen with a great
Michal Hocko

 \ /
  Last update: 2017-11-20 10:26    [W:0.163 / U:0.504 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site