From d3f3f3f25b1d4ee152f3f19a812c3a282da4c120 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Sun, 18 Jan 2015 18:21:09 -0800 Subject: [PATCH] rcu: Abstract default callback-list initialization from init_callback_list() In preparation for early-boot posting of callbacks, this commit abstracts initialization of the default (non-no-CB) callbacks list from the init_callback_list() function into a new init_default_callback_list() function. Signed-off-by: Paul E. McKenney --- kernel/rcu/tree.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 48d640ca1a05..f8cdb92da10b 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -1328,19 +1328,29 @@ void rcu_cpu_stall_reset(void) } /* - * Initialize the specified rcu_data structure's callback list to empty. + * Initialize the specified rcu_data structure's default callback list + * to empty. The default callback list is the one that is not used by + * no-callbacks CPUs. */ -static void init_callback_list(struct rcu_data *rdp) +static void init_default_callback_list(struct rcu_data *rdp) { int i; - if (init_nocb_callback_list(rdp)) - return; rdp->nxtlist = NULL; for (i = 0; i < RCU_NEXT_SIZE; i++) rdp->nxttail[i] = &rdp->nxtlist; } +/* + * Initialize the specified rcu_data structure's callback list to empty. + */ +static void init_callback_list(struct rcu_data *rdp) +{ + if (init_nocb_callback_list(rdp)) + return; + init_default_callback_list(rdp); +} + /* * Determine the value that ->completed will have at the end of the * next subsequent grace period. This is used to tag callbacks so that -- 2.39.5