lkml.org 
[lkml]   [2016]   [Mar]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] android: lmk: add swap pte pmd in tasksize
On Fri, Mar 11, 2016 at 05:05:45PM +0800, Chen Feng wrote:
>
>
> On 2016/3/11 15:30, yalin wang wrote:
> >
> >> On Mar 11, 2016, at 15:23, Lu Bing <albert.lubing@hisilicon.com> wrote:
> >>
> >> From: l00215322 <albert.lubing@hisilicon.com>
> >>
> >> Many android devices have zram,so we should add "MM_SWAPENTS" in tasksize.
> >> Refer oom_kill.c,we add pte&pmd also.
> >>
> >> Reviewed-by: Chen Feng <puck.chen@hisilicon.com>
> >> Reviewed-by: Fu Jun <oliver.fu@hisilicon.com>
> >> Reviewed-by: Xu YiPing <xuyiping@hisilicon.com>
> >> Reviewed-by: Yu DongBin <yudongbin@hisilicon.com>
> >> Signed-off-by: Lu Bing <albert.lubing@hisilicon.com>
> >> ---
> >> drivers/staging/android/lowmemorykiller.c | 4 +++-
> >> 1 file changed, 3 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
> >> index 8b5a4a8..0817d3b 100644
> >> --- a/drivers/staging/android/lowmemorykiller.c
> >> +++ b/drivers/staging/android/lowmemorykiller.c
> >> @@ -139,7 +139,9 @@ static unsigned long lowmem_scan(struct shrinker *s, struct shrink_control *sc)
> >> task_unlock(p);
> >> continue;
> >> }
> >> - tasksize = get_mm_rss(p->mm);
> >> + tasksize = get_mm_rss(p->mm) +
> >> + get_mm_counter(p->mm, MM_SWAPENTS) +
> >> + atomic_long_read(&p->mm->nr_ptes) + mm_nr_pmds(p->mm);
> > why not introduce a mm_nr_ptes() help function here ?
> > more clear to see .
> >
> Since the code is in staging, we can add another patch to do this.

I do not understand this, please explain.

thanks,

greg k-h

\
 
 \ /
  Last update: 2016-03-11 19:01    [W:0.074 / U:1.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site