Messages in this thread Patch in this message | | | From | paulmck@kernel ... | Subject | [PATCH tip/core/rcu 04/24] rcu: Initialize at declaration time in rcu_exp_handler() | Date | Mon, 31 Aug 2020 11:00:56 -0700 |
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From: "Paul E. McKenney" <paulmck@kernel.org>
This commit moves the initialization of the CONFIG_PREEMPT=n version of the rcu_exp_handler() function's rdp and rnp local variables into their respective declarations to save a couple lines of code.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org> --- kernel/rcu/tree_exp.h | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h index 1888c0e..8760b6e 100644 --- a/kernel/rcu/tree_exp.h +++ b/kernel/rcu/tree_exp.h @@ -732,11 +732,9 @@ static void rcu_exp_need_qs(void) /* Invoked on each online non-idle CPU for expedited quiescent state. */ static void rcu_exp_handler(void *unused) { - struct rcu_data *rdp; - struct rcu_node *rnp; + struct rcu_data *rdp = this_cpu_ptr(&rcu_data); + struct rcu_node *rnp = rdp->mynode; - rdp = this_cpu_ptr(&rcu_data); - rnp = rdp->mynode; if (!(READ_ONCE(rnp->expmask) & rdp->grpmask) || __this_cpu_read(rcu_data.cpu_no_qs.b.exp)) return; -- 2.9.5
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