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authorLi Zefan <lizf@cn.fujitsu.com>2012-01-31 13:47:36 +0800
committerTejun Heo <tj@kernel.org>2012-02-02 09:20:22 -0800
commit761b3ef50e1c2649cffbfa67a4dcb2dcdb7982ed (patch)
tree67ab6a9a2520811c9c0b4d70d1c19b4bfca16237 /kernel/cgroup_freezer.c
parent61d1d219c4c0761059236a46867bc49943c4d29d (diff)
downloadlinux-761b3ef50e1c2649cffbfa67a4dcb2dcdb7982ed.tar.bz2
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/cgroup_freezer.c')
-rw-r--r--kernel/cgroup_freezer.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/kernel/cgroup_freezer.c b/kernel/cgroup_freezer.c
index fc0646b78a64..f86e93920b62 100644
--- a/kernel/cgroup_freezer.c
+++ b/kernel/cgroup_freezer.c
@@ -128,8 +128,7 @@ struct cgroup_subsys freezer_subsys;
* task->alloc_lock (inside __thaw_task(), prevents race with refrigerator())
* sighand->siglock
*/
-static struct cgroup_subsys_state *freezer_create(struct cgroup_subsys *ss,
- struct cgroup *cgroup)
+static struct cgroup_subsys_state *freezer_create(struct cgroup *cgroup)
{
struct freezer *freezer;
@@ -142,8 +141,7 @@ static struct cgroup_subsys_state *freezer_create(struct cgroup_subsys *ss,
return &freezer->css;
}
-static void freezer_destroy(struct cgroup_subsys *ss,
- struct cgroup *cgroup)
+static void freezer_destroy(struct cgroup *cgroup)
{
struct freezer *freezer = cgroup_freezer(cgroup);
@@ -164,8 +162,7 @@ static bool is_task_frozen_enough(struct task_struct *task)
* a write to that file racing against an attach, and hence the
* can_attach() result will remain valid until the attach completes.
*/
-static int freezer_can_attach(struct cgroup_subsys *ss,
- struct cgroup *new_cgroup,
+static int freezer_can_attach(struct cgroup *new_cgroup,
struct cgroup_taskset *tset)
{
struct freezer *freezer;
@@ -185,7 +182,7 @@ static int freezer_can_attach(struct cgroup_subsys *ss,
return 0;
}
-static void freezer_fork(struct cgroup_subsys *ss, struct task_struct *task)
+static void freezer_fork(struct task_struct *task)
{
struct freezer *freezer;