radix tree test suite: Fix build

 - Add an empty linux/compiler_types.h (now being included by kconfig.h)
 - Add __GFP_ZERO
 - Add kzalloc
 - Test __GFP_DIRECT_RECLAIM instead of __GFP_NOWARN

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>

diff --git a/tools/testing/radix-tree/linux.c b/tools/testing/radix-tree/linux.c
index 6903ccf..44a0d1a 100644 (file)
--- a/tools/testing/radix-tree/linux.c
+++ b/tools/testing/radix-tree/linux.c
@@ -29,7 +29,7 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, int flags)
 {
        struct radix_tree_node *node;
 
-       if (flags & __GFP_NOWARN)
+       if (!(flags & __GFP_DIRECT_RECLAIM))
                return NULL;
 
        pthread_mutex_lock(&cachep->lock);
@@ -73,10 +73,17 @@ void kmem_cache_free(struct kmem_cache *cachep, void *objp)
 
 void *kmalloc(size_t size, gfp_t gfp)
 {
-       void *ret = malloc(size);
+       void *ret;
+
+       if (!(gfp & __GFP_DIRECT_RECLAIM))
+               return NULL;
+
+       ret = malloc(size);
        uatomic_inc(&nr_allocated);
        if (kmalloc_verbose)
                printf("Allocating %p from malloc\n", ret);
+       if (gfp & __GFP_ZERO)
+               memset(ret, 0, size);
        return ret;
 }
 

diff --git a/tools/testing/radix-tree/linux/compiler_types.h b/tools/testing/radix-tree/linux/compiler_types.h
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/tools/testing/radix-tree/linux/gfp.h b/tools/testing/radix-tree/linux/gfp.h
index e9fff59..e3201cc 100644 (file)
--- a/tools/testing/radix-tree/linux/gfp.h
+++ b/tools/testing/radix-tree/linux/gfp.h
@@ -11,6 +11,7 @@
 #define __GFP_IO               0x40u
 #define __GFP_FS               0x80u
 #define __GFP_NOWARN           0x200u
+#define __GFP_ZERO             0x8000u
 #define __GFP_ATOMIC           0x80000u
 #define __GFP_ACCOUNT          0x100000u
 #define __GFP_DIRECT_RECLAIM   0x400000u

diff --git a/tools/testing/radix-tree/linux/slab.h b/tools/testing/radix-tree/linux/slab.h
index 979baee..a037def 100644 (file)
--- a/tools/testing/radix-tree/linux/slab.h
+++ b/tools/testing/radix-tree/linux/slab.h
@@ -3,6 +3,7 @@
 #define SLAB_H
 
 #include <linux/types.h>
+#include <linux/gfp.h>
 
 #define SLAB_HWCACHE_ALIGN 1
 #define SLAB_PANIC 2
@@ -11,6 +12,11 @@
 void *kmalloc(size_t size, gfp_t);
 void kfree(void *);
 
+static inline void *kzalloc(size_t size, gfp_t gfp)
+{
+        return kmalloc(size, gfp | __GFP_ZERO);
+}
+
 void *kmem_cache_alloc(struct kmem_cache *cachep, int flags);
 void kmem_cache_free(struct kmem_cache *cachep, void *objp);