671 static void dump_eb_and_memory_contents(struct extent_buffer *eb, void *memory,  in dump_eb_and_memory_contents()  argument
678 		if (memcmp(addr, memory + i, 1) != 0) {  in dump_eb_and_memory_contents()
681 				 i, *(u8 *)addr, *(u8 *)(memory + i));  in dump_eb_and_memory_contents()
687 static int verify_eb_and_memory(struct extent_buffer *eb, void *memory,  in verify_eb_and_memory()  argument
693 		if (memcmp(memory + (i << PAGE_SHIFT), eb_addr, PAGE_SIZE) != 0) {  in verify_eb_and_memory()
694 			dump_eb_and_memory_contents(eb, memory, test_name);  in verify_eb_and_memory()
705 static void init_eb_and_memory(struct extent_buffer *eb, void *memory)  in init_eb_and_memory()  argument
707 	get_random_bytes(memory, eb->len);  in init_eb_and_memory()
708 	write_extent_buffer(eb, memory, 0, eb->len);  in init_eb_and_memory()
715 	void *memory = NULL;  in test_eb_mem_ops()  local
726 	memory = kvzalloc(nodesize, GFP_KERNEL);  in test_eb_mem_ops()
727 	if (!memory) {  in test_eb_mem_ops()
740 	init_eb_and_memory(eb, memory);  in test_eb_mem_ops()
741 	ret = verify_eb_and_memory(eb, memory, "full eb write");  in test_eb_mem_ops()
745 	memcpy(memory, memory + 16, 16);  in test_eb_mem_ops()
747 	ret = verify_eb_and_memory(eb, memory, "same page non-overlapping memcpy 1");  in test_eb_mem_ops()
751 	memcpy(memory, memory + 2048, 16);  in test_eb_mem_ops()
753 	ret = verify_eb_and_memory(eb, memory, "same page non-overlapping memcpy 2");  in test_eb_mem_ops()
756 	memcpy(memory, memory + 2048, 2048);  in test_eb_mem_ops()
758 	ret = verify_eb_and_memory(eb, memory, "same page non-overlapping memcpy 3");  in test_eb_mem_ops()
762 	memmove(memory + 512, memory + 256, 512);  in test_eb_mem_ops()
764 	ret = verify_eb_and_memory(eb, memory, "same page overlapping memcpy 1");  in test_eb_mem_ops()
768 	memmove(memory + 2048, memory + 512, 2048);  in test_eb_mem_ops()
770 	ret = verify_eb_and_memory(eb, memory, "same page overlapping memcpy 2");  in test_eb_mem_ops()
773 	memmove(memory + 512, memory + 2048, 2048);  in test_eb_mem_ops()
775 	ret = verify_eb_and_memory(eb, memory, "same page overlapping memcpy 3");  in test_eb_mem_ops()
780 		memcpy(memory, memory + 4096 - 128, 256);  in test_eb_mem_ops()
782 		ret = verify_eb_and_memory(eb, memory, "cross page non-overlapping memcpy 1");  in test_eb_mem_ops()
786 		memcpy(memory + 4096 - 128, memory + 4096 + 128, 256);  in test_eb_mem_ops()
788 		ret = verify_eb_and_memory(eb, memory, "cross page non-overlapping memcpy 2");  in test_eb_mem_ops()
792 		memmove(memory + 4096 - 128, memory + 4096 - 64, 256);  in test_eb_mem_ops()
794 		ret = verify_eb_and_memory(eb, memory, "cross page overlapping memcpy 1");  in test_eb_mem_ops()
798 		memmove(memory + 4096 - 64, memory + 4096 - 128, 256);  in test_eb_mem_ops()
800 		ret = verify_eb_and_memory(eb, memory, "cross page overlapping memcpy 2");  in test_eb_mem_ops()
806 	kvfree(memory);  in test_eb_mem_ops()