66 	void *buf;  in do_alloc_pages_order()  local
72 	buf = page_address(page);  in do_alloc_pages_order()
73 	fill_with_garbage(buf, size);  in do_alloc_pages_order()
79 	buf = page_address(page);  in do_alloc_pages_order()
80 	if (count_nonzero_bytes(buf, size))  in do_alloc_pages_order()
82 	fill_with_garbage(buf, size);  in do_alloc_pages_order()
107 	void *buf;  in do_kmalloc_size()  local
109 	buf = kmalloc(size, GFP_KERNEL);  in do_kmalloc_size()
110 	if (!buf)  in do_kmalloc_size()
112 	fill_with_garbage(buf, size);  in do_kmalloc_size()
113 	kfree(buf);  in do_kmalloc_size()
115 	buf = kmalloc(size, GFP_KERNEL);  in do_kmalloc_size()
116 	if (!buf)  in do_kmalloc_size()
118 	if (count_nonzero_bytes(buf, size))  in do_kmalloc_size()
120 	fill_with_garbage(buf, size);  in do_kmalloc_size()
121 	kfree(buf);  in do_kmalloc_size()
131 	void *buf;  in do_vmalloc_size()  local
133 	buf = vmalloc(size);  in do_vmalloc_size()
134 	if (!buf)  in do_vmalloc_size()
136 	fill_with_garbage(buf, size);  in do_vmalloc_size()
137 	vfree(buf);  in do_vmalloc_size()
139 	buf = vmalloc(size);  in do_vmalloc_size()
140 	if (!buf)  in do_vmalloc_size()
142 	if (count_nonzero_bytes(buf, size))  in do_vmalloc_size()
144 	fill_with_garbage(buf, size);  in do_vmalloc_size()
145 	vfree(buf);  in do_vmalloc_size()
187 static bool __init check_buf(void *buf, int size, bool want_ctor,  in check_buf()  argument
193 	bytes = count_nonzero_bytes(buf, size);  in check_buf()
198 		if (*(unsigned int *)buf != CTOR_PATTERN)  in check_buf()
224 	void *buf, *buf_copy;  in do_kmem_cache_size()  local
245 		buf = kmem_cache_alloc(c, alloc_mask);  in do_kmem_cache_size()
247 		fail |= check_buf(buf, size, want_ctor, want_rcu, want_zero);  in do_kmem_cache_size()
248 		fill_with_garbage_skip(buf, size, want_ctor ? CTOR_BYTES : 0);  in do_kmem_cache_size()
251 			kmem_cache_free(c, buf);  in do_kmem_cache_size()
266 			memcpy(buf_copy, buf, size);  in do_kmem_cache_size()
268 		kmem_cache_free(c, buf);  in do_kmem_cache_size()
274 		fail |= check_buf(buf, size, want_ctor, want_rcu,  in do_kmem_cache_size()
277 			fail |= (bool)memcmp(buf, buf_copy, size);  in do_kmem_cache_size()
295 	void *buf, *buf_contents, *saved_ptr;  in do_kmem_cache_rcu_persistent()  local
302 	buf = kmem_cache_alloc(c, GFP_KERNEL);  in do_kmem_cache_rcu_persistent()
303 	if (!buf)  in do_kmem_cache_rcu_persistent()
305 	saved_ptr = buf;  in do_kmem_cache_rcu_persistent()
306 	fill_with_garbage(buf, size);  in do_kmem_cache_rcu_persistent()
309 		kmem_cache_free(c, buf);  in do_kmem_cache_rcu_persistent()
314 		kmem_cache_free(c, buf);  in do_kmem_cache_rcu_persistent()
318 	memcpy(buf_contents, buf, size);  in do_kmem_cache_rcu_persistent()
319 	kmem_cache_free(c, buf);  in do_kmem_cache_rcu_persistent()
325 		buf = kmem_cache_alloc(c, GFP_KERNEL);  in do_kmem_cache_rcu_persistent()
326 		used_objects[iter] = buf;  in do_kmem_cache_rcu_persistent()
327 		if (buf == saved_ptr) {  in do_kmem_cache_rcu_persistent()
328 			fail = memcmp(buf_contents, buf, size);  in do_kmem_cache_rcu_persistent()