[PATCH 2/3] mm,compaction: Add COMPACTION_BUILD

[Mel Gorman]

To avoid #ifdef COMPACTION in a following patch, this patch adds
COMPACTION_BUILD that is similar to NUMA_BUILD in operation.

Signed-off-by: Mel Gorman <mel@xxxxxxxxx>
---
 include/linux/kernel.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 450092c..c00c5d1 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -826,6 +826,13 @@ struct sysinfo {
 #define NUMA_BUILD 0
 #endif
 
+/* This helps us avoid #ifdef CONFIG_COMPACTION */
+#ifdef CONFIG_COMPACTION
+#define COMPACTION_BUILD 1
+#else
+#define COMPACTION_BUILD 0
+#endif
+
 /* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */
 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
 # define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD
-- 
1.7.1

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