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authorTejun Heo <tj@kernel.org>2014-02-13 06:58:41 -0500
committerTejun Heo <tj@kernel.org>2014-02-13 06:58:41 -0500
commit924f0d9a2078f49ff331bb43196ec5afadc16b8f (patch)
tree6df0c9852c7b16c2f2eb69b04f90aacae9f95132 /include/linux/cgroup.h
parentcb0f1fe9ba47c202a98a9d41ad5c12c0ac7732e9 (diff)
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cgroup: drop @skip_css from cgroup_taskset_for_each()
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>
Diffstat (limited to 'include/linux/cgroup.h')
-rw-r--r--include/linux/cgroup.h8
1 files changed, 2 insertions, 6 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 3bd0a7138371..581a124c7bc8 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -535,15 +535,11 @@ int cgroup_taskset_size(struct cgroup_taskset *tset);
/**
* cgroup_taskset_for_each - iterate cgroup_taskset
* @task: the loop cursor
- * @skip_css: skip if task's css matches this, %NULL to iterate through all
* @tset: taskset to iterate
*/
-#define cgroup_taskset_for_each(task, skip_css, tset) \
+#define cgroup_taskset_for_each(task, tset) \
for ((task) = cgroup_taskset_first((tset)); (task); \
- (task) = cgroup_taskset_next((tset))) \
- if (!(skip_css) || \
- cgroup_taskset_cur_css((tset), \
- (skip_css)->ss->id) != (skip_css))
+ (task) = cgroup_taskset_next((tset)))
/*
* Control Group subsystem type.