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cgroups: __rcu annotations 

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Paul Menage <menage@google.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
Arnd Bergmann 2010-02-24 19:41:39 +01:00 committed by Paul E. McKenney
parent 67bdbffd69
commit 2c392b8c34
3 changed files with 4 additions and 4 deletions
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4
include/linux/cgroup.h
View File

@ -75,7 +75,7 @@ struct cgroup_subsys_state {
unsigned long flags;
/* ID for this css, if possible */
struct css_id *id;
struct css_id __rcu *id;
};
/* bits in struct cgroup_subsys_state flags field */
@ -205,7 +205,7 @@ struct cgroup {
struct list_head children; /* my children */
struct cgroup *parent; /* my parent */
struct dentry *dentry; /* cgroup fs entry, RCU protected */
struct dentry __rcu *dentry; /* cgroup fs entry, RCU protected */
/* Private pointers for each registered subsystem */
struct cgroup_subsys_state *subsys[CGROUP_SUBSYS_COUNT];

2
include/linux/sched.h
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@ -1418,7 +1418,7 @@ struct task_struct {
#endif
#ifdef CONFIG_CGROUPS
/* Control Group info protected by css_set_lock */
struct css_set *cgroups;
struct css_set __rcu *cgroups;
/* cg_list protected by css_set_lock and tsk->alloc_lock */
struct list_head cg_list;
#endif

2
kernel/cgroup.c
View File

@ -138,7 +138,7 @@ struct css_id {
* is called after synchronize_rcu(). But for safe use, css_is_removed()
* css_tryget() should be used for avoiding race.
*/
struct cgroup_subsys_state *css;
struct cgroup_subsys_state __rcu *css;
/*
* ID of this css.
*/