651 static void dump_eb_and_memory_contents(struct extent_buffer *eb, void *memory,  in dump_eb_and_memory_contents()  argument
658 		if (memcmp(addr, memory + i, 1) != 0) {  in dump_eb_and_memory_contents()
661 				 i, *(u8 *)addr, *(u8 *)(memory + i));  in dump_eb_and_memory_contents()
667 static int verify_eb_and_memory(struct extent_buffer *eb, void *memory,  in verify_eb_and_memory()  argument
673 		if (memcmp(memory + (i << PAGE_SHIFT), eb_addr, PAGE_SIZE) != 0) {  in verify_eb_and_memory()
674 			dump_eb_and_memory_contents(eb, memory, test_name);  in verify_eb_and_memory()
685 static void init_eb_and_memory(struct extent_buffer *eb, void *memory)  in init_eb_and_memory()  argument
687 	get_random_bytes(memory, eb->len);  in init_eb_and_memory()
688 	write_extent_buffer(eb, memory, 0, eb->len);  in init_eb_and_memory()
695 	void *memory = NULL;  in test_eb_mem_ops()  local
706 	memory = kvzalloc(nodesize, GFP_KERNEL);  in test_eb_mem_ops()
707 	if (!memory) {  in test_eb_mem_ops()
720 	init_eb_and_memory(eb, memory);  in test_eb_mem_ops()
721 	ret = verify_eb_and_memory(eb, memory, "full eb write");  in test_eb_mem_ops()
725 	memcpy(memory, memory + 16, 16);  in test_eb_mem_ops()
727 	ret = verify_eb_and_memory(eb, memory, "same page non-overlapping memcpy 1");  in test_eb_mem_ops()
731 	memcpy(memory, memory + 2048, 16);  in test_eb_mem_ops()
733 	ret = verify_eb_and_memory(eb, memory, "same page non-overlapping memcpy 2");  in test_eb_mem_ops()
736 	memcpy(memory, memory + 2048, 2048);  in test_eb_mem_ops()
738 	ret = verify_eb_and_memory(eb, memory, "same page non-overlapping memcpy 3");  in test_eb_mem_ops()
742 	memmove(memory + 512, memory + 256, 512);  in test_eb_mem_ops()
744 	ret = verify_eb_and_memory(eb, memory, "same page overlapping memcpy 1");  in test_eb_mem_ops()
748 	memmove(memory + 2048, memory + 512, 2048);  in test_eb_mem_ops()
750 	ret = verify_eb_and_memory(eb, memory, "same page overlapping memcpy 2");  in test_eb_mem_ops()
753 	memmove(memory + 512, memory + 2048, 2048);  in test_eb_mem_ops()
755 	ret = verify_eb_and_memory(eb, memory, "same page overlapping memcpy 3");  in test_eb_mem_ops()
760 		memcpy(memory, memory + 4096 - 128, 256);  in test_eb_mem_ops()
762 		ret = verify_eb_and_memory(eb, memory, "cross page non-overlapping memcpy 1");  in test_eb_mem_ops()
766 		memcpy(memory + 4096 - 128, memory + 4096 + 128, 256);  in test_eb_mem_ops()
768 		ret = verify_eb_and_memory(eb, memory, "cross page non-overlapping memcpy 2");  in test_eb_mem_ops()
772 		memmove(memory + 4096 - 128, memory + 4096 - 64, 256);  in test_eb_mem_ops()
774 		ret = verify_eb_and_memory(eb, memory, "cross page overlapping memcpy 1");  in test_eb_mem_ops()
778 		memmove(memory + 4096 - 64, memory + 4096 - 128, 256);  in test_eb_mem_ops()
780 		ret = verify_eb_and_memory(eb, memory, "cross page overlapping memcpy 2");  in test_eb_mem_ops()
786 	kvfree(memory);  in test_eb_mem_ops()