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Message-Id: <1495749601-21574-60-git-send-email-paulmck@linux.vnet.ibm.com>
Date: Thu, 25 May 2017 14:59:33 -0700
From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To: linux-kernel@...r.kernel.org
Cc: mingo@...nel.org, jiangshanlai@...il.com, dipankar@...ibm.com,
akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
fweisbec@...il.com, oleg@...hat.com, bobby.prani@...il.com,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 60/88] rcu: Move rcu_ftrace_dump() from rcupdate.h to rcu.h
The rcu_ftrace_dump() function is used only internally to RCU. This
commit therefore moves its declaration from include/linux/rcupdate.h
to kernel/rcu/rcu.h.
Reported-by: Ingo Molnar <mingo@...nel.org>
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
include/linux/rcupdate.h | 12 ------------
kernel/rcu/rcu.h | 12 ++++++++++++
2 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 003427425e27..ad5e6934dcf3 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -884,18 +884,6 @@ static inline void rcu_sysidle_force_exit(void) { }
/*
- * Dump the ftrace buffer, but only one time per callsite per boot.
- */
-#define rcu_ftrace_dump(oops_dump_mode) \
-do { \
- static atomic_t ___rfd_beenhere = ATOMIC_INIT(0); \
- \
- if (!atomic_read(&___rfd_beenhere) && \
- !atomic_xchg(&___rfd_beenhere, 1)) \
- ftrace_dump(oops_dump_mode); \
-} while (0)
-
-/*
* Place this after a lock-acquisition primitive to guarantee that
* an UNLOCK+LOCK pair acts as a full barrier. This guarantee applies
* if the UNLOCK and LOCK are executed by the same CPU or if the
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
index 2f344662c568..cdbaa441bdac 100644
--- a/kernel/rcu/rcu.h
+++ b/kernel/rcu/rcu.h
@@ -212,6 +212,18 @@ int rcu_jiffies_till_stall_check(void);
*/
#define TPS(x) tracepoint_string(x)
+/*
+ * Dump the ftrace buffer, but only one time per callsite per boot.
+ */
+#define rcu_ftrace_dump(oops_dump_mode) \
+do { \
+ static atomic_t ___rfd_beenhere = ATOMIC_INIT(0); \
+ \
+ if (!atomic_read(&___rfd_beenhere) && \
+ !atomic_xchg(&___rfd_beenhere, 1)) \
+ ftrace_dump(oops_dump_mode); \
+} while (0)
+
void rcu_early_boot_tests(void);
void rcu_test_sync_prims(void);
--
2.5.2
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