radix tree test suite: Add config option for map shift
Add config option "SHIFT=<value>" to Makefile for building test suite
with any value of RADIX_TREE_MAP_SHIFT between 3 and 7 inclusive.
Signed-off-by: Rehas Sachdeva <aquannie@gmail.com>
[mawilcox@microsoft.com: .gitignore, quieten grep, remove on clean]
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
diff --git a/tools/testing/radix-tree/.gitignore b/tools/testing/radix-tree/.gitignore
index 26dedaf..d4706c0 100644
--- a/tools/testing/radix-tree/.gitignore
+++ b/tools/testing/radix-tree/.gitignore
@@ -1,3 +1,4 @@
+generated/map-shift.h
idr.c
idr-test
main
diff --git a/tools/testing/radix-tree/Makefile b/tools/testing/radix-tree/Makefile
index ecea846..f11315b 100644
--- a/tools/testing/radix-tree/Makefile
+++ b/tools/testing/radix-tree/Makefile
@@ -6,11 +6,11 @@
OFILES = main.o $(CORE_OFILES) regression1.o regression2.o regression3.o \
tag_check.o multiorder.o idr-test.o iteration_check.o benchmark.o
-ifdef BENCHMARK
- CFLAGS += -DBENCHMARK=1
+ifndef SHIFT
+ SHIFT=3
endif
-targets: $(TARGETS)
+targets: mapshift $(TARGETS)
main: $(OFILES)
$(CC) $(CFLAGS) $(LDFLAGS) $^ -o main
@@ -22,11 +22,11 @@
$(CC) $(CFLAGS) $(LDFLAGS) $^ -o multiorder
clean:
- $(RM) $(TARGETS) *.o radix-tree.c idr.c
+ $(RM) $(TARGETS) *.o radix-tree.c idr.c generated/map-shift.h
vpath %.c ../../lib
-$(OFILES): *.h */*.h \
+$(OFILES): *.h */*.h generated/map-shift.h \
../../include/linux/*.h \
../../include/asm/*.h \
../../../include/linux/radix-tree.h \
@@ -37,3 +37,11 @@
idr.c: ../../../lib/idr.c
sed -e 's/^static //' -e 's/__always_inline //' -e 's/inline //' < $< > $@
+
+.PHONY: mapshift
+
+mapshift:
+ @if ! grep -qw $(SHIFT) generated/map-shift.h; then \
+ echo "#define RADIX_TREE_MAP_SHIFT $(SHIFT)" > \
+ generated/map-shift.h; \
+ fi
diff --git a/tools/testing/radix-tree/linux/kernel.h b/tools/testing/radix-tree/linux/kernel.h
index 677b8c0..b21a77f 100644
--- a/tools/testing/radix-tree/linux/kernel.h
+++ b/tools/testing/radix-tree/linux/kernel.h
@@ -12,12 +12,6 @@
#include <linux/log2.h>
#include "../../../include/linux/kconfig.h"
-#ifdef BENCHMARK
-#define RADIX_TREE_MAP_SHIFT 6
-#else
-#define RADIX_TREE_MAP_SHIFT 3
-#endif
-
#define printk printf
#define pr_debug printk
#define pr_cont printk
diff --git a/tools/testing/radix-tree/linux/radix-tree.h b/tools/testing/radix-tree/linux/radix-tree.h
index ddd135f..bf1bb23 100644
--- a/tools/testing/radix-tree/linux/radix-tree.h
+++ b/tools/testing/radix-tree/linux/radix-tree.h
@@ -1,5 +1,7 @@
#ifndef _TEST_RADIX_TREE_H
#define _TEST_RADIX_TREE_H
+
+#include "generated/map-shift.h"
#include "../../../../include/linux/radix-tree.h"
extern int kmalloc_verbose;