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Date: Wed, 14 Jul 2010 13:09:38 -0700 From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> To: linux-kernel@...r.kernel.org Cc: mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com, akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca, josh@...htriplett.org, dvhltc@...ibm.com, niv@...ibm.com, tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu, dhowells@...hat.com, eric.dumazet@...il.com, Arnd Bergmann <arnd@...db.de>, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, Li Zefan <lizf@...fujitsu.com> Subject: [PATCH RFC tip/core/rcu 04/30] cgroups: __rcu annotations From: Arnd Bergmann <arnd@...db.de> Signed-off-by: Arnd Bergmann <arnd@...db.de> Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com> Acked-by: Paul Menage <menage@...gle.com> Cc: Li Zefan <lizf@...fujitsu.com> --- include/linux/cgroup.h | 4 ++-- include/linux/sched.h | 2 +- kernel/cgroup.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index e3d00fd..1e7ce60 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -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]; diff --git a/include/linux/sched.h b/include/linux/sched.h index f118809..97fc7ee 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1427,7 +1427,7 @@ 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 diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 3ac6f5b..30c459b 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -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. */ -- 1.7.0.6 -- 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/
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