[firefly] [PATCH 2/2] kernel: rcu: remove preemptible field from rcu_data structure

Iulia Manda iulia.manda21 at gmail.com
Tue Mar 11 10:32:22 EET 2014


Delete from rcu_structure unused member preemptible. It was also used in
rcu_init_per_cpu, but with no useful purpose, as it is only a parameter, 
but does not influence anything else.

Signed-off-by: Iulia Manda <iulia.manda21 at gmail.com>
---
 kernel/rcu/tree.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index b3d116c..e97513e 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3108,7 +3108,7 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
  * that this CPU cannot possibly have any RCU callbacks in flight yet.
  */
 static void
-rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptible)
+rcu_init_percpu_data(int cpu, struct rcu_state *rsp)
 {
 	unsigned long flags;
 	unsigned long mask;
@@ -3121,7 +3121,6 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptible)
 	/* Set up local state, ensuring consistent view of global state. */
 	raw_spin_lock_irqsave(&rnp->lock, flags);
 	rdp->beenonline = 1;	 /* We have now been online. */
-	rdp->preemptible = preemptible;
 	rdp->qlen_last_fqs_check = 0;
 	rdp->n_force_qs_snap = rsp->n_force_qs;
 	rdp->blimit = blimit;
@@ -3165,8 +3164,7 @@ static void rcu_prepare_cpu(int cpu)
 	struct rcu_state *rsp;
 
 	for_each_rcu_flavor(rsp)
-		rcu_init_percpu_data(cpu, rsp,
-				     strcmp(rsp->name, "rcu_preempt") == 0);
+		rcu_init_percpu_data(cpu, rsp);
 }
 
 /*
-- 
1.7.10.4



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