Messages in this thread Patch in this message | | | From | Monam Agarwal <> | Subject | [PATCH] kernel: Use RCU_INIT_POINTER(x, NULL) in tracepoint.c | Date | Mon, 24 Mar 2014 00:39:08 +0530 |
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This patch replaces rcu_assign_pointer(x, NULL) with RCU_INIT_POINTER(x, NULL)
The rcu_assign_pointer() ensures that the initialization of a structure is carried out before storing a pointer to that structure. And in the case of the NULL pointer, there is no structure to initialize. So, rcu_assign_pointer(p, NULL) can be safely converted to RCU_INIT_POINTER(p, NULL)
Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com> --- kernel/tracepoint.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c index 031cc56..72dfa96 100644 --- a/kernel/tracepoint.c +++ b/kernel/tracepoint.c @@ -291,7 +291,7 @@ static void disable_tracepoint(struct tracepoint *elem) if (static_key_enabled(&elem->key)) static_key_slow_dec(&elem->key); - rcu_assign_pointer(elem->funcs, NULL); + RCU_INIT_POINTER(elem->funcs, NULL); } /** -- 1.7.9.5
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