Unverified Commit 0c282b06 authored Jan 27, 2020 by Madhuparna Bhowmik Committed by Christian Brauner Feb 28, 2020

fork: Use RCU_INIT_POINTER() instead of rcu_access_pointer()



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

Suggested-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
[christian.brauner@ubuntu.com: edit commit message]
Link: https://lore.kernel.org/r/20200127175821.10833-1-madhuparnabhowmik10@gmail.com


Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

parent bb6d3fb3

kernel/fork.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;

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