66 	void *buf;  in do_alloc_pages_order()  local
70 	buf = page_address(page);  in do_alloc_pages_order()
71 	fill_with_garbage(buf, size);  in do_alloc_pages_order()
75 	buf = page_address(page);  in do_alloc_pages_order()
76 	if (count_nonzero_bytes(buf, size))  in do_alloc_pages_order()
78 	fill_with_garbage(buf, size);  in do_alloc_pages_order()
100 	void *buf;  in do_kmalloc_size()  local
102 	buf = kmalloc(size, GFP_KERNEL);  in do_kmalloc_size()
103 	fill_with_garbage(buf, size);  in do_kmalloc_size()
104 	kfree(buf);  in do_kmalloc_size()
106 	buf = kmalloc(size, GFP_KERNEL);  in do_kmalloc_size()
107 	if (count_nonzero_bytes(buf, size))  in do_kmalloc_size()
109 	fill_with_garbage(buf, size);  in do_kmalloc_size()
110 	kfree(buf);  in do_kmalloc_size()
117 	void *buf;  in do_vmalloc_size()  local
119 	buf = vmalloc(size);  in do_vmalloc_size()
120 	fill_with_garbage(buf, size);  in do_vmalloc_size()
121 	vfree(buf);  in do_vmalloc_size()
123 	buf = vmalloc(size);  in do_vmalloc_size()
124 	if (count_nonzero_bytes(buf, size))  in do_vmalloc_size()
126 	fill_with_garbage(buf, size);  in do_vmalloc_size()
127 	vfree(buf);  in do_vmalloc_size()
166 static bool __init check_buf(void *buf, int size, bool want_ctor,  in check_buf()  argument
172 	bytes = count_nonzero_bytes(buf, size);  in check_buf()
177 		if (*(unsigned int *)buf != CTOR_PATTERN)  in check_buf()
200 	void *buf, *buf_copy;  in do_kmem_cache_size()  local
206 		buf = kmem_cache_alloc(c, alloc_mask);  in do_kmem_cache_size()
208 		fail = check_buf(buf, size, want_ctor, want_rcu, want_zero);  in do_kmem_cache_size()
209 		fill_with_garbage_skip(buf, size, want_ctor ? CTOR_BYTES : 0);  in do_kmem_cache_size()
212 			kmem_cache_free(c, buf);  in do_kmem_cache_size()
227 			memcpy(buf_copy, buf, size);  in do_kmem_cache_size()
229 		kmem_cache_free(c, buf);  in do_kmem_cache_size()
235 		fail |= check_buf(buf, size, want_ctor, want_rcu,  in do_kmem_cache_size()
238 			fail |= (bool)memcmp(buf, buf_copy, size);  in do_kmem_cache_size()
256 	void *buf, *buf_contents, *saved_ptr;  in do_kmem_cache_rcu_persistent()  local
263 	buf = kmem_cache_alloc(c, GFP_KERNEL);  in do_kmem_cache_rcu_persistent()
264 	saved_ptr = buf;  in do_kmem_cache_rcu_persistent()
265 	fill_with_garbage(buf, size);  in do_kmem_cache_rcu_persistent()
274 	memcpy(buf_contents, buf, size);  in do_kmem_cache_rcu_persistent()
275 	kmem_cache_free(c, buf);  in do_kmem_cache_rcu_persistent()
281 		buf = kmem_cache_alloc(c, GFP_KERNEL);  in do_kmem_cache_rcu_persistent()
282 		used_objects[iter] = buf;  in do_kmem_cache_rcu_persistent()
283 		if (buf == saved_ptr) {  in do_kmem_cache_rcu_persistent()
284 			fail = memcmp(buf_contents, buf, size);  in do_kmem_cache_rcu_persistent()