Messages in this thread Patch in this message | | | Date | Mon, 18 Aug 2014 15:05:37 +0300 | From | Andreea-Cristina Bernat <> | Subject | [PATCH] tcm_fc: Replace rcu_assign_pointer() with RCU_INIT_POINTER() |
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The use of "rcu_assign_pointer()" is NULLing out the pointer. According to RCU_INIT_POINTER()'s block comment: "1. This use of RCU_INIT_POINTER() is NULLing out the pointer" it is better to use it instead of rcu_assign_pointer() because it has a smaller overhead.
The following Coccinelle semantic patch was used: @@ @@
- rcu_assign_pointer + RCU_INIT_POINTER (..., NULL)
Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com> --- drivers/target/tcm_fc/tfc_sess.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c index 21ce508..ccee7e3 100644 --- a/drivers/target/tcm_fc/tfc_sess.c +++ b/drivers/target/tcm_fc/tfc_sess.c @@ -98,7 +98,7 @@ static void ft_tport_delete(struct ft_tport *tport) ft_sess_delete_all(tport); lport = tport->lport; BUG_ON(tport != lport->prov[FC_TYPE_FCP]); - rcu_assign_pointer(lport->prov[FC_TYPE_FCP], NULL); + RCU_INIT_POINTER(lport->prov[FC_TYPE_FCP], NULL); tpg = tport->tpg; if (tpg) { -- 1.9.1
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