linux-kernel - [PATCH] Fix for memory initialisation debugging framework

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Date:	Wed, 30 Apr 2008 12:31:04 +0100
From:	Mel Gorman <mel@....ul.ie>
To:	akpm@...ux-foundation.org
Cc:	apw@...dowen.org, clameter@....com, mingo@...e.hu,
	linux-kernel@...r.kernel.org
Subject: [PATCH] Fix for memory initialisation debugging framework

On (29/04/08 14:26), akpm@...ux-foundation.org didst pronounce:
> 
> The patch titled
>      mm: add a basic debugging framework for memory initialisation
> has been added to the -mm tree.  Its filename is
>      mm-add-a-basic-debugging-framework-for-memory-initialisation.patch
> 

This patch is a fix to
mm-add-a-basic-debugging-framework-for-memory-initialisation.patch pointed out
by an off-list reviewer. The intention of the code was to change the printk
loglevel depending on the message level passed to mminit_dprintk(). What
actually happens is that for MMINIT_WARNING and levels, only the loglevel
is sent to printk() and not the message. This patch fixes the code to behave
as intended.

It can be folded safely into
mm-add-a-basic-debugging-framework-for-memory-initialisation.patch without
causing collisions later in the set.

Signed-off-by: Mel Gorman <mel@....ul.ie>
---
 mm/internal.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff -rup -X /usr/src/patchset-0.6/bin//dontdiff linux-2.6.25-mm1-0010_mminit_debug_framework/mm/internal.h linux-2.6.25-mm1-0015_fix_mminit_dprink/mm/internal.h
--- linux-2.6.25-mm1-0010_mminit_debug_framework/mm/internal.h	2008-04-30 09:47:55.000000000 +0100
+++ linux-2.6.25-mm1-0015_fix_mminit_dprink/mm/internal.h	2008-04-30 11:33:41.000000000 +0100
@@ -73,8 +73,8 @@ extern int mminit_loglevel;
 #define mminit_dprintk(level, prefix, fmt, arg...) \
 do { \
 	if (level < mminit_loglevel) { \
-		printk(level <= MMINIT_WARNING ? KERN_WARNING : KERN_DEBUG \
-			"mminit:: " prefix " " fmt, ##arg); \
+		printk(level <= MMINIT_WARNING ? KERN_WARNING : KERN_DEBUG); \
+		printk(KERN_CONT "mminit::" prefix " " fmt, ##arg); \
 	} \
 } while (0)
 

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