linux-kernel - [PATCH 25/49] jbd2: Remove printk from J_ASSERT to preserve registers during BUG

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Message-Id: <1200970948-17903-26-git-send-email-tytso@mit.edu>
Date:	Mon, 21 Jan 2008 22:02:04 -0500
From:	"Theodore Ts'o" <tytso@....EDU>
To:	linux-kernel@...r.kernel.org
Cc:	Chris Snook <csnook@...hat.com>,
	"Stephen C. Tweedie" <sct@...hat.com>,
	"Theodore Ts'o" <tytso@....edu>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 25/49] jbd2: Remove printk from J_ASSERT to preserve registers during BUG

From: Chris Snook <csnook@...hat.com>

Signed-off-by: Chris Snook <csnook@...hat.com>
Cc: "Stephen C. Tweedie" <sct@...hat.com>
Cc: Theodore Ts'o <tytso@....edu>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: "Theodore Ts'o" <tytso@....edu>
---
 include/linux/jbd2.h |   16 +---------------
 1 files changed, 1 insertions(+), 15 deletions(-)

diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 06ef114..d5f7cff 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -256,17 +256,7 @@ typedef struct journal_superblock_s
 #include <linux/fs.h>
 #include <linux/sched.h>
 
-#define JBD2_ASSERTIONS
-#ifdef JBD2_ASSERTIONS
-#define J_ASSERT(assert)						\
-do {									\
-	if (!(assert)) {						\
-		printk (KERN_EMERG					\
-			"Assertion failure in %s() at %s:%d: \"%s\"\n",	\
-			__FUNCTION__, __FILE__, __LINE__, # assert);	\
-		BUG();							\
-	}								\
-} while (0)
+#define J_ASSERT(assert)	BUG_ON(!(assert))
 
 #if defined(CONFIG_BUFFER_DEBUG)
 void buffer_assertion_failure(struct buffer_head *bh);
@@ -282,10 +272,6 @@ void buffer_assertion_failure(struct buffer_head *bh);
 #define J_ASSERT_JH(jh, expr)	J_ASSERT(expr)
 #endif
 
-#else
-#define J_ASSERT(assert)	do { } while (0)
-#endif		/* JBD2_ASSERTIONS */
-
 #if defined(JBD2_PARANOID_IOFAIL)
 #define J_EXPECT(expr, why...)		J_ASSERT(expr)
 #define J_EXPECT_BH(bh, expr, why...)	J_ASSERT_BH(bh, expr)
-- 
1.5.4.rc3.31.g1271-dirty

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