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| author | Robert Richter <robert.richter@amd.com> | 2010-10-01 08:54:17 +0200 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2010-10-01 08:54:17 +0200 |
| commit | ef70fcc0cd5d98f5e2df82c9e598b47f351d4f66 (patch) | |
| tree | b801ba4d7ebb1155df68d530df49444ffa6252cc /include/net/cls_cgroup.h | |
| parent | 4cbe75be5c6ae86bdc7daec864eeb2dfd66f48bb (diff) | |
| parent | 98d943b02f6f1b57787ff1aa6f34d019a407e3ee (diff) | |
Merge branch 'oprofile/urgent' into oprofile/core
Conflicts:
arch/arm/oprofile/common.c
Signed-off-by: Robert Richter <robert.richter@amd.com>
Diffstat (limited to 'include/net/cls_cgroup.h')
| -rw-r--r-- | include/net/cls_cgroup.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/include/net/cls_cgroup.h b/include/net/cls_cgroup.h index 726cc353640..ef6c24a529e 100644 --- a/include/net/cls_cgroup.h +++ b/include/net/cls_cgroup.h @@ -27,11 +27,17 @@ struct cgroup_cls_state #ifdef CONFIG_NET_CLS_CGROUP static inline u32 task_cls_classid(struct task_struct *p) { + int classid; + if (in_interrupt()) return 0; - return container_of(task_subsys_state(p, net_cls_subsys_id), - struct cgroup_cls_state, css)->classid; + rcu_read_lock(); + classid = container_of(task_subsys_state(p, net_cls_subsys_id), + struct cgroup_cls_state, css)->classid; + rcu_read_unlock(); + + return classid; } #else extern int net_cls_subsys_id; |