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authorArnd Bergmann <arnd@arndb.de>2012-02-24 12:39:18 +0000
committerArnd Bergmann <arnd@arndb.de>2012-02-24 12:39:18 +0000
commitfdc24d4ba20499febb90ff17d3b75674026712f8 (patch)
tree83cebb162add24be7b395090b4daca4bd752641b /include/net/netprio_cgroup.h
parenta5f17d1f4c2831b9b9bf8b1a537cdbac995d6e13 (diff)
parent059289b260826deb43601644a7ad39c2608e6861 (diff)
downloadtalos-obmc-linux-fdc24d4ba20499febb90ff17d3b75674026712f8.tar.gz
talos-obmc-linux-fdc24d4ba20499febb90ff17d3b75674026712f8.zip
Merge branch 'vexpress-dt-v3.3-rc4' of git://git.linaro.org/people/pawelmoll/linux into next/dt
* 'vexpress-dt-v3.3-rc4' of git://git.linaro.org/people/pawelmoll/linux: (573 commits) ARM: vexpress: Add Device Tree for V2P-CA15 core tile (TC1 variant) ARM: vexpress: Add Device Tree for V2P-CA9 core tile ARM: vexpress: Add Device Tree for V2P-CA5s core tile ARM: vexpress: Motherboard RS1 memory map support ARM: vexpress: Add Device Tree support ARM: vexpress: Use FDT data in platform SMP calls ARM: versatile: Map local timers using Device Tree when possible ARM: vexpress: Get rid of MMIO_P2V This adds full device tree boot support for the versatile express platform, as has been awaited for a long time. Conflicts: arch/arm/mach-vexpress/core.h The definition of AMBA_DEVICE was removed in one branch, and the definition of MMIO_P2V was removed in the other branch. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include/net/netprio_cgroup.h')
-rw-r--r--include/net/netprio_cgroup.h48
1 files changed, 40 insertions, 8 deletions
diff --git a/include/net/netprio_cgroup.h b/include/net/netprio_cgroup.h
index 7b2d43139c8e..d58fdec47597 100644
--- a/include/net/netprio_cgroup.h
+++ b/include/net/netprio_cgroup.h
@@ -37,19 +37,51 @@ extern int net_prio_subsys_id;
extern void sock_update_netprioidx(struct sock *sk);
-static inline struct cgroup_netprio_state
- *task_netprio_state(struct task_struct *p)
+#if IS_BUILTIN(CONFIG_NETPRIO_CGROUP)
+
+static inline u32 task_netprioidx(struct task_struct *p)
{
-#if IS_ENABLED(CONFIG_NETPRIO_CGROUP)
- return container_of(task_subsys_state(p, net_prio_subsys_id),
- struct cgroup_netprio_state, css);
-#else
- return NULL;
-#endif
+ struct cgroup_netprio_state *state;
+ u32 idx;
+
+ rcu_read_lock();
+ state = container_of(task_subsys_state(p, net_prio_subsys_id),
+ struct cgroup_netprio_state, css);
+ idx = state->prioidx;
+ rcu_read_unlock();
+ return idx;
+}
+
+#elif IS_MODULE(CONFIG_NETPRIO_CGROUP)
+
+static inline u32 task_netprioidx(struct task_struct *p)
+{
+ struct cgroup_netprio_state *state;
+ int subsys_id;
+ u32 idx = 0;
+
+ rcu_read_lock();
+ subsys_id = rcu_dereference_index_check(net_prio_subsys_id,
+ rcu_read_lock_held());
+ if (subsys_id >= 0) {
+ state = container_of(task_subsys_state(p, subsys_id),
+ struct cgroup_netprio_state, css);
+ idx = state->prioidx;
+ }
+ rcu_read_unlock();
+ return idx;
}
#else
+static inline u32 task_netprioidx(struct task_struct *p)
+{
+ return 0;
+}
+
+#endif /* CONFIG_NETPRIO_CGROUP */
+
+#else
#define sock_update_netprioidx(sk)
#endif
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