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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com,
	akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca,
	josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de,
	peterz@infradead.org, rostedt@goodmis.org,
	Valdis.Kletnieks@vt.edu, dhowells@redhat.com,
	edumazet@google.com, darren@dvhart.com, fweisbec@gmail.com,
	sbw@mit.edu, "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 03/13] rcu: Remove rcu_preempt_check_callbacks()
Date: Mon, 20 May 2013 07:58:10 -0700	[thread overview]
Message-ID: <1369061900-546-3-git-send-email-paulmck@linux.vnet.ibm.com> (raw)
In-Reply-To: <1369061900-546-1-git-send-email-paulmck@linux.vnet.ibm.com>

From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>

With the removal of CONFIG_TINY_PREEMPT_RCU, rcu_preempt_check_callbacks()
is now an empty function.  This commit therefore eliminates it by
inlining it.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
 kernel/rcutiny.c        | 1 -
 kernel/rcutiny_plugin.h | 8 --------
 2 files changed, 9 deletions(-)

diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index a0714a5..9178282 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -257,7 +257,6 @@ void rcu_check_callbacks(int cpu, int user)
 		rcu_sched_qs(cpu);
 	else if (!in_softirq())
 		rcu_bh_qs(cpu);
-	rcu_preempt_check_callbacks();
 }
 
 /*
diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h
index cf0bc22..404b3a3 100644
--- a/kernel/rcutiny_plugin.h
+++ b/kernel/rcutiny_plugin.h
@@ -104,14 +104,6 @@ static void check_cpu_stalls(void)
 
 /*
  * Because preemptible RCU does not exist, it never has any callbacks
- * to check.
- */
-static void rcu_preempt_check_callbacks(void)
-{
-}
-
-/*
- * Because preemptible RCU does not exist, it never has any callbacks
  * to remove.
  */
 static void rcu_preempt_remove_callbacks(struct rcu_ctrlblk *rcp)
-- 
1.8.1.5


  parent reply	other threads:[~2013-05-20 15:00 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-20 14:57 [PATCH tip/core/rcu 0/13] v2 TINY_RCU changes for 3.11 Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 01/13] rcu: Remove TINY_PREEMPT_RCU Paul E. McKenney
2013-05-20 14:58   ` [PATCH tip/core/rcu 02/13] rcu: Remove show_tiny_preempt_stats() Paul E. McKenney
2013-05-20 14:58   ` Paul E. McKenney [this message]
2013-05-20 14:58   ` [PATCH tip/core/rcu 04/13] rcu: Remove rcu_preempt_remove_callbacks() Paul E. McKenney
2013-05-20 14:58   ` [PATCH tip/core/rcu 05/13] rcu: Remove rcu_preempt_process_callbacks() Paul E. McKenney
2013-05-20 14:58   ` [PATCH tip/core/rcu 06/13] rcu: Simplify RCU_TINY RCU callback invocation Paul E. McKenney
2013-05-20 14:58   ` [PATCH tip/core/rcu 07/13] rcu: Remove check_cpu_stall_preempt() Paul E. McKenney
2013-05-20 14:58   ` [PATCH tip/core/rcu 08/13] rcu: Remove the CONFIG_TINY_RCU ifdefs in rcutiny.h Paul E. McKenney
2013-05-20 14:58   ` [PATCH tip/core/rcu 09/13] rcu: Remove rcu_preempt_note_context_switch() Paul E. McKenney
2013-05-20 14:58   ` [PATCH tip/core/rcu 10/13] rcu: Consolidate rcutiny_plugin.h ifdefs Paul E. McKenney
2013-05-20 14:58   ` [PATCH tip/core/rcu 11/13] rcu: Remove TINY_PREEMPT_RCU tracing documentation Paul E. McKenney
2013-05-20 14:58   ` [PATCH tip/core/rcu 12/13] rcu: Shrink TINY_RCU by moving exit_rcu() Paul E. McKenney
2013-05-20 14:58   ` [PATCH tip/core/rcu 13/13] rcu: Shrink TINY_RCU by reworking CPU-stall ifdefs Paul E. McKenney
2013-05-21 17:31     ` Josh Triplett
2013-05-21 21:09       ` Paul E. McKenney
2013-05-21 21:48         ` Josh Triplett

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