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cgroup: remove cgroup_subsys argument from callbacks

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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>
This commit is contained in:
Li Zefan
2012-01-31 13:47:36 +08:00
committed by Tejun Heo
parent 61d1d219c4
commit 761b3ef50e
16 changed files with 113 additions and 162 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
net/core/netprio_cgroup.c
View File

@@ -23,9 +23,8 @@
#include <net/sock.h>
#include <net/netprio_cgroup.h>
static struct cgroup_subsys_state *cgrp_create(struct cgroup_subsys *ss,
struct cgroup *cgrp);
static void cgrp_destroy(struct cgroup_subsys *ss, struct cgroup *cgrp);
static struct cgroup_subsys_state *cgrp_create(struct cgroup *cgrp);
static void cgrp_destroy(struct cgroup *cgrp);
static int cgrp_populate(struct cgroup_subsys *ss, struct cgroup *cgrp);
struct cgroup_subsys net_prio_subsys = {
@@ -120,8 +119,7 @@ static void update_netdev_tables(void)
rtnl_unlock();
}
static struct cgroup_subsys_state *cgrp_create(struct cgroup_subsys *ss,
struct cgroup *cgrp)
static struct cgroup_subsys_state *cgrp_create(struct cgroup *cgrp)
{
struct cgroup_netprio_state *cs;
int ret;
@@ -145,7 +143,7 @@ static struct cgroup_subsys_state *cgrp_create(struct cgroup_subsys *ss,
return &cs->css;
}
static void cgrp_destroy(struct cgroup_subsys *ss, struct cgroup *cgrp)
static void cgrp_destroy(struct cgroup *cgrp)
{
struct cgroup_netprio_state *cs;
struct net_device *dev;

6
net/core/sock.c
View File

@@ -160,19 +160,19 @@ int mem_cgroup_sockets_init(struct cgroup *cgrp, struct cgroup_subsys *ss)
out:
list_for_each_entry_continue_reverse(proto, &proto_list, node)
if (proto->destroy_cgroup)
proto->destroy_cgroup(cgrp, ss);
proto->destroy_cgroup(cgrp);
mutex_unlock(&proto_list_mutex);
return ret;
}
void mem_cgroup_sockets_destroy(struct cgroup *cgrp, struct cgroup_subsys *ss)
void mem_cgroup_sockets_destroy(struct cgroup *cgrp)
{
struct proto *proto;
mutex_lock(&proto_list_mutex);
list_for_each_entry_reverse(proto, &proto_list, node)
if (proto->destroy_cgroup)
proto->destroy_cgroup(cgrp, ss);
proto->destroy_cgroup(cgrp);
mutex_unlock(&proto_list_mutex);
}
#endif