linux-kernel - [tip:tracing/core] ring-buffer: Wrap open-coded WARN

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Message-ID: <tip-956097912c40a03bf22603a3be73503fd9ea9e44@git.kernel.org>
Date:	Tue, 4 May 2010 18:09:35 GMT
From:	tip-bot for Borislav Petkov <bp@...en8.de>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	rostedt@...dmis.org, tglx@...utronix.de, bp@...en8.de
Subject: [tip:tracing/core] ring-buffer: Wrap open-coded WARN_ONCE

Commit-ID:  956097912c40a03bf22603a3be73503fd9ea9e44
Gitweb:     http://git.kernel.org/tip/956097912c40a03bf22603a3be73503fd9ea9e44
Author:     Borislav Petkov <bp@...en8.de>
AuthorDate: Sun, 2 May 2010 08:03:54 +0200
Committer:  Steven Rostedt <rostedt@...dmis.org>
CommitDate: Tue, 4 May 2010 12:23:47 -0400

ring-buffer: Wrap open-coded WARN_ONCE

Wrap open-coded WARN_ONCE functionality into the equivalent macro.

Signed-off-by: Borislav Petkov <bp@...en8.de>
LKML-Reference: <20100502060354.GA5281@...ndog.tnic>
Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
---
 kernel/trace/ring_buffer.c |   14 +++++---------
 1 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 2a09044..7f6059c 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -2000,17 +2000,13 @@ rb_add_time_stamp(struct ring_buffer_per_cpu *cpu_buffer,
 		  u64 *ts, u64 *delta)
 {
 	struct ring_buffer_event *event;
-	static int once;
 	int ret;
 
-	if (unlikely(*delta > (1ULL << 59) && !once++)) {
-		printk(KERN_WARNING "Delta way too big! %llu"
-		       " ts=%llu write stamp = %llu\n",
-		       (unsigned long long)*delta,
-		       (unsigned long long)*ts,
-		       (unsigned long long)cpu_buffer->write_stamp);
-		WARN_ON(1);
-	}
+	WARN_ONCE(*delta > (1ULL << 59),
+		  KERN_WARNING "Delta way too big! %llu ts=%llu write stamp = %llu\n",
+		  (unsigned long long)*delta,
+		  (unsigned long long)*ts,
+		  (unsigned long long)cpu_buffer->write_stamp);
 
 	/*
 	 * The delta is too big, we to add a
--
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