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authorMatthew Wilcox <willy@infradead.org>2017-11-07 14:57:46 -0500
committerMatthew Wilcox <willy@infradead.org>2018-10-21 10:45:57 -0400
commitad3d6c7263e368abdc151e1cc13dc78aa39cc7a7 (patch)
tree54279b42ac6fbede3abc75ea44fbe1554b633228 /tools/testing
parentxarray: Add documentation (diff)
downloadlinux-dev-ad3d6c7263e368abdc151e1cc13dc78aa39cc7a7.tar.xz
linux-dev-ad3d6c7263e368abdc151e1cc13dc78aa39cc7a7.zip
xarray: Add XArray load operation
The xa_load function brings with it a lot of infrastructure; xa_empty(), xa_is_err(), and large chunks of the XArray advanced API that are used to implement xa_load. As the test-suite demonstrates, it is possible to use the XArray functions on a radix tree. The radix tree functions depend on the GFP flags being stored in the root of the tree, so it's not possible to use the radix tree functions on an XArray. Signed-off-by: Matthew Wilcox <willy@infradead.org>
Diffstat (limited to 'tools/testing')
-rw-r--r--tools/testing/radix-tree/.gitignore1
-rw-r--r--tools/testing/radix-tree/Makefile6
-rw-r--r--tools/testing/radix-tree/linux/kernel.h1
-rw-r--r--tools/testing/radix-tree/linux/rcupdate.h2
-rw-r--r--tools/testing/radix-tree/main.c1
-rw-r--r--tools/testing/radix-tree/test.h1
-rw-r--r--tools/testing/radix-tree/xarray.c28
7 files changed, 38 insertions, 2 deletions
diff --git a/tools/testing/radix-tree/.gitignore b/tools/testing/radix-tree/.gitignore
index d4706c0ffceb..3834899b6693 100644
--- a/tools/testing/radix-tree/.gitignore
+++ b/tools/testing/radix-tree/.gitignore
@@ -4,3 +4,4 @@ idr-test
main
multiorder
radix-tree.c
+xarray
diff --git a/tools/testing/radix-tree/Makefile b/tools/testing/radix-tree/Makefile
index c0cf1c79efd5..1379f1d78d0b 100644
--- a/tools/testing/radix-tree/Makefile
+++ b/tools/testing/radix-tree/Makefile
@@ -4,7 +4,7 @@ CFLAGS += -I. -I../../include -g -Og -Wall -D_LGPL_SOURCE -fsanitize=address \
-fsanitize=undefined
LDFLAGS += -fsanitize=address -fsanitize=undefined
LDLIBS+= -lpthread -lurcu
-TARGETS = main idr-test multiorder
+TARGETS = main idr-test multiorder xarray
CORE_OFILES := xarray.o radix-tree.o idr.o linux.o test.o find_bit.o
OFILES = main.o $(CORE_OFILES) regression1.o regression2.o regression3.o \
tag_check.o multiorder.o idr-test.o iteration_check.o benchmark.o
@@ -25,6 +25,8 @@ main: $(OFILES)
idr-test.o: ../../../lib/test_ida.c
idr-test: idr-test.o $(CORE_OFILES)
+xarray: $(CORE_OFILES)
+
multiorder: multiorder.o $(CORE_OFILES)
clean:
@@ -45,7 +47,7 @@ radix-tree.c: ../../../lib/radix-tree.c
idr.c: ../../../lib/idr.c
sed -e 's/^static //' -e 's/__always_inline //' -e 's/inline //' < $< > $@
-xarray.o: ../../../lib/xarray.c
+xarray.o: ../../../lib/xarray.c ../../../lib/test_xarray.c
generated/map-shift.h:
@if ! grep -qws $(SHIFT) generated/map-shift.h; then \
diff --git a/tools/testing/radix-tree/linux/kernel.h b/tools/testing/radix-tree/linux/kernel.h
index 426f32f28547..5d06ac75a14d 100644
--- a/tools/testing/radix-tree/linux/kernel.h
+++ b/tools/testing/radix-tree/linux/kernel.h
@@ -14,6 +14,7 @@
#include "../../../include/linux/kconfig.h"
#define printk printf
+#define pr_info printk
#define pr_debug printk
#define pr_cont printk
diff --git a/tools/testing/radix-tree/linux/rcupdate.h b/tools/testing/radix-tree/linux/rcupdate.h
index 73ed33658203..fd280b070fdb 100644
--- a/tools/testing/radix-tree/linux/rcupdate.h
+++ b/tools/testing/radix-tree/linux/rcupdate.h
@@ -6,5 +6,7 @@
#define rcu_dereference_raw(p) rcu_dereference(p)
#define rcu_dereference_protected(p, cond) rcu_dereference(p)
+#define rcu_dereference_check(p, cond) rcu_dereference(p)
+#define RCU_INIT_POINTER(p, v) (p) = (v)
#endif
diff --git a/tools/testing/radix-tree/main.c b/tools/testing/radix-tree/main.c
index b741686e53d6..09deaf4f0959 100644
--- a/tools/testing/radix-tree/main.c
+++ b/tools/testing/radix-tree/main.c
@@ -365,6 +365,7 @@ int main(int argc, char **argv)
rcu_register_thread();
radix_tree_init();
+ xarray_tests();
regression1_test();
regression2_test();
regression3_test();
diff --git a/tools/testing/radix-tree/test.h b/tools/testing/radix-tree/test.h
index 92d901eacf49..e3dc7a16f09b 100644
--- a/tools/testing/radix-tree/test.h
+++ b/tools/testing/radix-tree/test.h
@@ -34,6 +34,7 @@ int tag_tagged_items(struct radix_tree_root *, pthread_mutex_t *,
unsigned iftag, unsigned thentag);
unsigned long find_item(struct radix_tree_root *, void *item);
+void xarray_tests(void);
void tag_check(void);
void multiorder_checks(void);
void iteration_test(unsigned order, unsigned duration);
diff --git a/tools/testing/radix-tree/xarray.c b/tools/testing/radix-tree/xarray.c
index 9bbd667172a7..e61e43efe463 100644
--- a/tools/testing/radix-tree/xarray.c
+++ b/tools/testing/radix-tree/xarray.c
@@ -4,4 +4,32 @@
* Copyright (c) 2018 Matthew Wilcox <willy@infradead.org>
*/
+#define XA_DEBUG
+#include "test.h"
+
+#define module_init(x)
+#define module_exit(x)
+#define MODULE_AUTHOR(x)
+#define MODULE_LICENSE(x)
+#define dump_stack() assert(0)
+
#include "../../../lib/xarray.c"
+#undef XA_DEBUG
+#include "../../../lib/test_xarray.c"
+
+void xarray_tests(void)
+{
+ xarray_checks();
+ xarray_exit();
+}
+
+int __weak main(void)
+{
+ radix_tree_init();
+ xarray_tests();
+ radix_tree_cpu_dead(1);
+ rcu_barrier();
+ if (nr_allocated)
+ printf("nr_allocated = %d\n", nr_allocated);
+ return 0;
+}