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authorLi Zefan <lizf@cn.fujitsu.com>2012-01-31 06:47:36 +0100
committerTejun Heo <tj@kernel.org>2012-02-02 18:20:22 +0100
commit761b3ef50e1c2649cffbfa67a4dcb2dcdb7982ed (patch)
tree67ab6a9a2520811c9c0b4d70d1c19b4bfca16237 /kernel/sched
parentcgroup: remove extra calls to find_existing_css_set (diff)
downloadlinux-761b3ef50e1c2649cffbfa67a4dcb2dcdb7982ed.tar.xz
linux-761b3ef50e1c2649cffbfa67a4dcb2dcdb7982ed.zip
cgroup: remove cgroup_subsys argument from callbacks
The argument is not used at all, and it's not necessary, because a specific callback handler of course knows which subsys it belongs to. Now only ->pupulate() takes this argument, because the handlers of this callback always call cgroup_add_file()/cgroup_add_files(). So we reduce a few lines of code, though the shrinking of object size is minimal. 16 files changed, 113 insertions(+), 162 deletions(-) text data bss dec hex filename 5486240 656987 7039960 13183187 c928d3 vmlinux.o.orig 5486170 656987 7039960 13183117 c9288d vmlinux.o Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/sched')
-rw-r--r--kernel/sched/core.c20
1 files changed, 8 insertions, 12 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index df00cb09263e..ff12f7216062 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7530,8 +7530,7 @@ static inline struct task_group *cgroup_tg(struct cgroup *cgrp)
struct task_group, css);
}
-static struct cgroup_subsys_state *
-cpu_cgroup_create(struct cgroup_subsys *ss, struct cgroup *cgrp)
+static struct cgroup_subsys_state *cpu_cgroup_create(struct cgroup *cgrp)
{
struct task_group *tg, *parent;
@@ -7548,15 +7547,14 @@ cpu_cgroup_create(struct cgroup_subsys *ss, struct cgroup *cgrp)
return &tg->css;
}
-static void
-cpu_cgroup_destroy(struct cgroup_subsys *ss, struct cgroup *cgrp)
+static void cpu_cgroup_destroy(struct cgroup *cgrp)
{
struct task_group *tg = cgroup_tg(cgrp);
sched_destroy_group(tg);
}
-static int cpu_cgroup_can_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
+static int cpu_cgroup_can_attach(struct cgroup *cgrp,
struct cgroup_taskset *tset)
{
struct task_struct *task;
@@ -7574,7 +7572,7 @@ static int cpu_cgroup_can_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
return 0;
}
-static void cpu_cgroup_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
+static void cpu_cgroup_attach(struct cgroup *cgrp,
struct cgroup_taskset *tset)
{
struct task_struct *task;
@@ -7584,8 +7582,8 @@ static void cpu_cgroup_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
}
static void
-cpu_cgroup_exit(struct cgroup_subsys *ss, struct cgroup *cgrp,
- struct cgroup *old_cgrp, struct task_struct *task)
+cpu_cgroup_exit(struct cgroup *cgrp, struct cgroup *old_cgrp,
+ struct task_struct *task)
{
/*
* cgroup_exit() is called in the copy_process() failure path.
@@ -7935,8 +7933,7 @@ struct cgroup_subsys cpu_cgroup_subsys = {
*/
/* create a new cpu accounting group */
-static struct cgroup_subsys_state *cpuacct_create(
- struct cgroup_subsys *ss, struct cgroup *cgrp)
+static struct cgroup_subsys_state *cpuacct_create(struct cgroup *cgrp)
{
struct cpuacct *ca;
@@ -7966,8 +7963,7 @@ out:
}
/* destroy an existing cpu accounting group */
-static void
-cpuacct_destroy(struct cgroup_subsys *ss, struct cgroup *cgrp)
+static void cpuacct_destroy(struct cgroup *cgrp)
{
struct cpuacct *ca = cgroup_ca(cgrp);