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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-03-08 20:21:04 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-03-08 20:21:04 +0000
commit988addf82e4c03739375279de73929580a2d4a6a (patch)
tree989ae1cd4e264bbad80c65f04480486246e7b9f3 /kernel/pid.c
parent004c1c7096659d352b83047a7593e91d8a30e3c5 (diff)
parent25cf84cf377c0aae5dbcf937ea89bc7893db5176 (diff)
downloadlinux-988addf82e4c03739375279de73929580a2d4a6a.tar.bz2
Merge branch 'origin' into devel-stable
Conflicts: arch/arm/mach-mx2/devices.c arch/arm/mach-mx2/devices.h sound/soc/pxa/pxa-ssp.c
Diffstat (limited to 'kernel/pid.c')
-rw-r--r--kernel/pid.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/pid.c b/kernel/pid.c
index 2e17c9c92cbe..86b296943e5f 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -367,7 +367,7 @@ struct task_struct *pid_task(struct pid *pid, enum pid_type type)
struct task_struct *result = NULL;
if (pid) {
struct hlist_node *first;
- first = rcu_dereference(pid->tasks[type].first);
+ first = rcu_dereference_check(pid->tasks[type].first, rcu_read_lock_held() || lockdep_is_held(&tasklist_lock));
if (first)
result = hlist_entry(first, struct task_struct, pids[(type)].node);
}
@@ -376,7 +376,7 @@ struct task_struct *pid_task(struct pid *pid, enum pid_type type)
EXPORT_SYMBOL(pid_task);
/*
- * Must be called under rcu_read_lock() or with tasklist_lock read-held.
+ * Must be called under rcu_read_lock().
*/
struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
{