[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <0b10af801af45fdbf4835e8da54273e9752b239f.1398147734.git.nasa4836@gmail.com>
Date: Tue, 22 Apr 2014 14:31:01 +0800
From: Jianyu Zhan <nasa4836@...il.com>
To: davem@...emloft.net, tj@...nel.org, lizefan@...wei.com,
nhorman@...driver.com, daniel.wagner@...-carit.de,
nasa4836@...il.com, jiri@...nulli.us, gaofeng@...fujitsu.com,
stephen@...workplumber.org
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/4] netprio_cgroup: use accessor to get id from css
This is a prepared patch for converting from per-cgroup id to
per-subsystem id.
We should not access per-cgroup id directly, since this is
implemetation detail.
Use the accessor css_from_id() instead.
This patch has no functional change.
Signed-off-by: Jianyu Zhan <nasa4836@...il.com>
---
net/core/netprio_cgroup.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c
index ce285c6..fc21035 100644
--- a/net/core/netprio_cgroup.c
+++ b/net/core/netprio_cgroup.c
@@ -89,7 +89,7 @@ static int extend_netdev_table(struct net_device *dev, u32 target_idx)
static u32 netprio_prio(struct cgroup_subsys_state *css, struct net_device *dev)
{
struct netprio_map *map = rcu_dereference_rtnl(dev->priomap);
- int id = css->cgroup->id;
+ int id = css_to_id(css);
if (map && id < map->priomap_len)
return map->priomap[id];
@@ -109,7 +109,7 @@ static int netprio_set_prio(struct cgroup_subsys_state *css,
struct net_device *dev, u32 prio)
{
struct netprio_map *map;
- int id = css->cgroup->id;
+ int id = css_to_id(css);
int ret;
/* avoid extending priomap for zero writes */
@@ -170,7 +170,7 @@ static void cgrp_css_free(struct cgroup_subsys_state *css)
static u64 read_prioidx(struct cgroup_subsys_state *css, struct cftype *cft)
{
- return css->cgroup->id;
+ return css_to_id(css);
}
static int read_priomap(struct seq_file *sf, void *v)
@@ -222,7 +222,7 @@ static void net_prio_attach(struct cgroup_subsys_state *css,
struct cgroup_taskset *tset)
{
struct task_struct *p;
- void *v = (void *)(unsigned long)css->cgroup->id;
+ void *v = (void *)(unsigned long)css_to_id(css);
cgroup_taskset_for_each(p, tset) {
task_lock(p);
--
2.0.0-rc0
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists