342 static int check_eb_bitmap(unsigned long *bitmap, struct extent_buffer *eb)  in check_eb_bitmap()  argument
346 	for (i = 0; i < eb->len * BITS_PER_BYTE; i++) {  in check_eb_bitmap()
350 		bit1 = !!extent_buffer_test_bit(eb, 0, i);  in check_eb_bitmap()
355 			read_extent_buffer(eb, &has, i / BITS_PER_BYTE, 1);  in check_eb_bitmap()
364 		bit1 = !!extent_buffer_test_bit(eb, i / BITS_PER_BYTE,  in check_eb_bitmap()
370 			read_extent_buffer(eb, &has, i / BITS_PER_BYTE, 1);  in check_eb_bitmap()
384 			   struct extent_buffer *eb,  in test_bitmap_set()  argument
391 	extent_buffer_bitmap_set(eb, byte_start, bit_start, bit_len);  in test_bitmap_set()
392 	ret = check_eb_bitmap(bitmap, eb);  in test_bitmap_set()
399 			     struct extent_buffer *eb,  in test_bitmap_clear()  argument
406 	extent_buffer_bitmap_clear(eb, byte_start, bit_start, bit_len);  in test_bitmap_clear()
407 	ret = check_eb_bitmap(bitmap, eb);  in test_bitmap_clear()
412 static int __test_eb_bitmaps(unsigned long *bitmap, struct extent_buffer *eb)  in __test_eb_bitmaps()  argument
415 	unsigned long byte_len = eb->len;  in __test_eb_bitmaps()
419 	ret = test_bitmap_clear("clear all run 1", bitmap, eb, 0, 0,  in __test_eb_bitmaps()
424 	ret = test_bitmap_set("set all", bitmap, eb, 0, 0, byte_len * BITS_PER_BYTE);  in __test_eb_bitmaps()
428 	ret = test_bitmap_clear("clear all run 2", bitmap, eb, 0, 0,  in __test_eb_bitmaps()
433 	ret = test_bitmap_set("same byte set", bitmap, eb, 0, 2, 4);  in __test_eb_bitmaps()
437 	ret = test_bitmap_clear("same byte partial clear", bitmap, eb, 0, 4, 1);  in __test_eb_bitmaps()
441 	ret = test_bitmap_set("cross byte set", bitmap, eb, 2, 4, 8);  in __test_eb_bitmaps()
445 	ret = test_bitmap_set("cross multi byte set", bitmap, eb, 4, 4, 24);  in __test_eb_bitmaps()
449 	ret = test_bitmap_clear("cross byte clear", bitmap, eb, 2, 6, 4);  in __test_eb_bitmaps()
453 	ret = test_bitmap_clear("cross multi byte clear", bitmap, eb, 4, 6, 20);  in __test_eb_bitmaps()
459 		ret = test_bitmap_set("cross page set", bitmap, eb,  in __test_eb_bitmaps()
465 		ret = test_bitmap_set("cross page set all", bitmap, eb, 0, 0,  in __test_eb_bitmaps()
470 		ret = test_bitmap_clear("cross page clear", bitmap, eb,  in __test_eb_bitmaps()
482 	ret = test_bitmap_clear("clear all run 3", bitmap, eb, 0, 0,  in __test_eb_bitmaps()
492 				extent_buffer_bitmap_set(eb, 0, i * 32 + j, 1);  in __test_eb_bitmaps()
497 	ret = check_eb_bitmap(bitmap, eb);  in __test_eb_bitmaps()
510 	struct extent_buffer *eb = NULL;  in test_eb_bitmaps()  local
528 	eb = __alloc_dummy_extent_buffer(fs_info, 0, nodesize);  in test_eb_bitmaps()
529 	if (!eb) {  in test_eb_bitmaps()
535 	ret = __test_eb_bitmaps(bitmap, eb);  in test_eb_bitmaps()
539 	free_extent_buffer(eb);  in test_eb_bitmaps()
545 	eb = __alloc_dummy_extent_buffer(fs_info, sectorsize, nodesize);  in test_eb_bitmaps()
546 	if (!eb) {  in test_eb_bitmaps()
552 	ret = __test_eb_bitmaps(bitmap, eb);  in test_eb_bitmaps()
554 	free_extent_buffer(eb);  in test_eb_bitmaps()
671 static void dump_eb_and_memory_contents(struct extent_buffer *eb, void *memory,  in dump_eb_and_memory_contents()  argument
674 	for (int i = 0; i < eb->len; i++) {  in dump_eb_and_memory_contents()
675 		struct page *page = folio_page(eb->folios[i >> PAGE_SHIFT], 0);  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
690 	for (int i = 0; i < (eb->len >> PAGE_SHIFT); i++) {  in verify_eb_and_memory()
691 		void *eb_addr = folio_address(eb->folios[i]);  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()
714 	struct extent_buffer *eb = NULL;  in test_eb_mem_ops()  local
733 	eb = __alloc_dummy_extent_buffer(fs_info, SZ_1M, nodesize);  in test_eb_mem_ops()
734 	if (!eb) {  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()
746 	memcpy_extent_buffer(eb, 0, 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()
752 	memcpy_extent_buffer(eb, 0, 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()
757 	memcpy_extent_buffer(eb, 0, 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()
763 	memmove_extent_buffer(eb, 512, 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()
769 	memmove_extent_buffer(eb, 2048, 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()
774 	memmove_extent_buffer(eb, 512, 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()
781 		memcpy_extent_buffer(eb, 0, 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()
787 		memcpy_extent_buffer(eb, 4096 - 128, 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()
793 		memmove_extent_buffer(eb, 4096 - 128, 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()
799 		memmove_extent_buffer(eb, 4096 - 64, 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()
805 	free_extent_buffer(eb);  in test_eb_mem_ops()