linux-kernel - Re: [PATCH] slab.c ifdef reduction breaks build

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Message-ID: <Pine.LNX.4.64.0701291240020.401@schroedinger.engr.sgi.com>
Date:	Mon, 29 Jan 2007 12:41:33 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Jeff Dike <jdike@...toit.com>
cc:	akpm@...l.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] slab.c ifdef reduction breaks build

I also hit the same issue. Here is the patch:


Fix slab build failure if !CONFIG_ZONE_DMA

I also needed this to get 2.6.20-rc6-mm2 to build. Fixes the fix by the
complainer about the fixes. #ifdef cannot be avoided since cs_dmacachep
is no longer defined.

Signed-off-by: Christoph Lameter <clameter@....com>

Index: linux-2.6.20-rc6-mm2/mm/slab.c
===================================================================
--- linux-2.6.20-rc6-mm2.orig/mm/slab.c	2007-01-29 14:27:58.000000000 -0600
+++ linux-2.6.20-rc6-mm2/mm/slab.c	2007-01-29 14:33:04.270329009 -0600
@@ -1503,6 +1503,7 @@ void __init kmem_cache_init(void)
 					ARCH_KMALLOC_FLAGS|SLAB_PANIC,
 					NULL, NULL);
 		}
+#ifdef CONFIG_ZONE_DMA
 		if (CONFIG_ZONE_DMA_FLAG)
 			sizes->cs_dmacachep = kmem_cache_create(
 					names->name_dma,
@@ -1511,6 +1512,7 @@ void __init kmem_cache_init(void)
 					ARCH_KMALLOC_FLAGS|SLAB_CACHE_DMA|
 						SLAB_PANIC,
 					NULL, NULL);
+#endif
 		sizes++;
 		names++;
 	}
-
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