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authorChristoph Lameter <clameter@sgi.com>2006-09-27 12:50:06 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-27 19:26:12 +0400
commit08e0f6a9705376732fd3bc9bf8ba97a6b5211eb1 (patch)
treedfb761013377b983641fae33223157880171c498 /include/linux/kernel.h
parentc72419138fa34e1bc1f1c6fa54ee77df55a05ed0 (diff)
downloadlinux-08e0f6a9705376732fd3bc9bf8ba97a6b5211eb1.tar.xz
[PATCH] Add NUMA_BUILD definition in kernel.h to avoid #ifdef CONFIG_NUMA
The NUMA_BUILD constant is always available and will be set to 1 on NUMA_BUILDs. That way checks valid only under CONFIG_NUMA can easily be done without #ifdef CONFIG_NUMA F.e. if (NUMA_BUILD && <numa_condition>) { ... } [akpm: not a thing we'd normally do, but CONFIG_NUMA is special: it is causing ifdef explosion in core kernel, so let's see if this is a comfortable way in whcih to control that] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/kernel.h')
-rw-r--r--include/linux/kernel.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 4fa373bb18ac..4d00988dad03 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -350,4 +350,11 @@ struct sysinfo {
/* Trap pasters of __FUNCTION__ at compile-time */
#define __FUNCTION__ (__func__)
+/* This helps us to avoid #ifdef CONFIG_NUMA */
+#ifdef CONFIG_NUMA
+#define NUMA_BUILD 1
+#else
+#define NUMA_BUILD 0
+#endif
+
#endif