[PATCH] fork.c: Use RCU_INIT_POINTER() instead of rcu_access_pointer()

From: madhuparnabhowmik10
Date: Mon Jan 27 2020 - 12:58:36 EST


From: Madhuparna Bhowmik <madhuparnabhowmik10@xxxxxxxxx>

Use RCU_INIT_POINTER() instead of rcu_access_pointer() in
copy_sighand().

Suggested-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@xxxxxxxxx>
---
kernel/fork.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index 2508a4f238a3..42b71d4a50cb 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1508,7 +1508,7 @@ static int copy_sighand(unsigned long clone_flags, struct task_struct *tsk)
return 0;
}
sig = kmem_cache_alloc(sighand_cachep, GFP_KERNEL);
- rcu_assign_pointer(tsk->sighand, sig);
+ RCU_INIT_POINTER(tsk->sighand, sig);
if (!sig)
return -ENOMEM;

--
2.17.1