The patch titled
Subject: mm: memcontrol: Use CSS_TASK_ITER_PROCS at mem_cgroup_scan_tasks().
has been added to the -mm tree. Its filename is
mm-memcontrol-use-css_task_iter_procs-at-mem_cgroup_scan_tasks.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-memcontrol-use-css_task_iter_procs-at-mem_cgroup_scan_tasks.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-memcontrol-use-css_task_iter_procs-at-mem_cgroup_scan_tasks.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Subject: mm: memcontrol: Use CSS_TASK_ITER_PROCS at mem_cgroup_scan_tasks().
Since c03cd7738a83b137 ("cgroup: Include dying leaders with live threads
in PROCS iterations") corrected how CSS_TASK_ITER_PROCS works,
mem_cgroup_scan_tasks() can use CSS_TASK_ITER_PROCS in order to check only
one thread from each thread group.
Link: http://lkml.kernel.org/r/c763afc8-f0ae-756a-56a7-395f625b95fc@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/memcontrol.c~mm-memcontrol-use-css_task_iter_procs-at-mem_cgroup_scan_tasks
+++ a/mm/memcontrol.c
@@ -1167,7 +1167,7 @@ int mem_cgroup_scan_tasks(struct mem_cgr
struct css_task_iter it;
struct task_struct *task;
- css_task_iter_start(&iter->css, 0, &it);
+ css_task_iter_start(&iter->css, CSS_TASK_ITER_PROCS, &it);
while (!ret && (task = css_task_iter_next(&it)))
ret = fn(task, arg);
css_task_iter_end(&it);
_
Patches currently in -mm which might be from penguin-kernel@xxxxxxxxxxxxxxxxxxx are
mm-memcontrol-use-css_task_iter_procs-at-mem_cgroup_scan_tasks.patch
info-task-hung-in-generic_file_write_iter.patch
info-task-hung-in-generic_file_write-fix.patch
