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cgroup: drop @skip_css from cgroup_taskset_for_each()

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If !NULL, @skip_css makes cgroup_taskset_for_each() skip the matching
css.  The intention of the interface is to make it easy to skip css's
(cgroup_subsys_states) which already match the migration target;
however, this is entirely unnecessary as migration taskset doesn't
include tasks which are already in the target cgroup.  Drop @skip_css
from cgroup_taskset_for_each().

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Daniel Borkmann <dborkman@redhat.com>
This commit is contained in:
Tejun Heo
2014-02-13 06:58:41 -05:00
parent cb0f1fe9ba
commit 924f0d9a20
8 changed files with 11 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
net/core/netclassid_cgroup.c
View File

@@ -73,7 +73,7 @@ static void cgrp_attach(struct cgroup_subsys_state *css,
void *v = (void *)(unsigned long)cs->classid;
struct task_struct *p;
cgroup_taskset_for_each(p, css, tset) {
cgroup_taskset_for_each(p, tset) {
task_lock(p);
iterate_fd(p->files, 0, update_classid, v);
task_unlock(p);

2
net/core/netprio_cgroup.c
View File

@@ -224,7 +224,7 @@ static void net_prio_attach(struct cgroup_subsys_state *css,
struct task_struct *p;
void *v = (void *)(unsigned long)css->cgroup->id;
cgroup_taskset_for_each(p, css, tset) {
cgroup_taskset_for_each(p, tset) {
task_lock(p);
iterate_fd(p->files, 0, update_netprio, v);
task_unlock(p);