169 		struct page *page, u64 start, u32 len)  in btrfs_subpage_assert()  argument
173 	ASSERT(IS_ALIGNED(start, fs_info->sectorsize) &&  in btrfs_subpage_assert()
180 		ASSERT(page_offset(page) <= start &&  in btrfs_subpage_assert()
181 		       start + len <= page_offset(page) + PAGE_SIZE);  in btrfs_subpage_assert()
185 		struct page *page, u64 start, u32 len)  in btrfs_subpage_start_reader()  argument
190 	btrfs_subpage_assert(fs_info, page, start, len);  in btrfs_subpage_start_reader()
196 		struct page *page, u64 start, u32 len)  in btrfs_subpage_end_reader()  argument
203 	btrfs_subpage_assert(fs_info, page, start, len);  in btrfs_subpage_end_reader()
219 static void btrfs_subpage_clamp_range(struct page *page, u64 *start, u32 *len)  in btrfs_subpage_clamp_range()  argument
221 	u64 orig_start = *start;  in btrfs_subpage_clamp_range()
224 	*start = max_t(u64, page_offset(page), orig_start);  in btrfs_subpage_clamp_range()
226 		     orig_start + orig_len) - *start;  in btrfs_subpage_clamp_range()
230 		struct page *page, u64 start, u32 len)  in btrfs_subpage_start_writer()  argument
236 	btrfs_subpage_assert(fs_info, page, start, len);  in btrfs_subpage_start_writer()
244 		struct page *page, u64 start, u32 len)  in btrfs_subpage_end_and_test_writer()  argument
249 	btrfs_subpage_assert(fs_info, page, start, len);  in btrfs_subpage_end_and_test_writer()
266 		struct page *page, u64 start, u32 len)  in btrfs_page_start_writer_lock()  argument
277 	btrfs_subpage_clamp_range(page, &start, &len);  in btrfs_page_start_writer_lock()
278 	btrfs_subpage_start_writer(fs_info, page, start, len);  in btrfs_page_start_writer_lock()
283 		struct page *page, u64 start, u32 len)  in btrfs_page_end_writer_lock()  argument
287 	btrfs_subpage_clamp_range(page, &start, &len);  in btrfs_page_end_writer_lock()
288 	if (btrfs_subpage_end_and_test_writer(fs_info, page, start, len))  in btrfs_page_end_writer_lock()
293  * Convert the [start, start + len) range into a u16 bitmap
295  * For example: if start == page_offset() + 16K, len = 16K, we get 0x00f0.
298 		struct page *page, u64 start, u32 len)  in btrfs_subpage_calc_bitmap()  argument
300 	const int bit_start = offset_in_page(start) >> fs_info->sectorsize_bits;  in btrfs_subpage_calc_bitmap()
303 	btrfs_subpage_assert(fs_info, page, start, len);  in btrfs_subpage_calc_bitmap()
314 		struct page *page, u64 start, u32 len)  in btrfs_subpage_set_uptodate()  argument
317 	const u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len);  in btrfs_subpage_set_uptodate()
328 		struct page *page, u64 start, u32 len)  in btrfs_subpage_clear_uptodate()  argument
331 	const u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len);  in btrfs_subpage_clear_uptodate()
341 		struct page *page, u64 start, u32 len)  in btrfs_subpage_set_error()  argument
344 	const u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len);  in btrfs_subpage_set_error()
354 		struct page *page, u64 start, u32 len)  in btrfs_subpage_clear_error()  argument
357 	const u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len);  in btrfs_subpage_clear_error()
368 		struct page *page, u64 start, u32 len)  in btrfs_subpage_set_dirty()  argument
371 	u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len);  in btrfs_subpage_set_dirty()
391 		struct page *page, u64 start, u32 len)  in btrfs_subpage_clear_and_test_dirty()  argument
394 	u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len);  in btrfs_subpage_clear_and_test_dirty()
407 		struct page *page, u64 start, u32 len)  in btrfs_subpage_clear_dirty()  argument
411 	last = btrfs_subpage_clear_and_test_dirty(fs_info, page, start, len);  in btrfs_subpage_clear_dirty()
417 		struct page *page, u64 start, u32 len)  in btrfs_subpage_set_writeback()  argument
420 	u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len);  in btrfs_subpage_set_writeback()
430 		struct page *page, u64 start, u32 len)  in btrfs_subpage_clear_writeback()  argument
433 	u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len);  in btrfs_subpage_clear_writeback()
446 		struct page *page, u64 start, u32 len)  in btrfs_subpage_set_ordered()  argument
449 	const u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len);  in btrfs_subpage_set_ordered()
459 		struct page *page, u64 start, u32 len)  in btrfs_subpage_clear_ordered()  argument
462 	const u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len);  in btrfs_subpage_clear_ordered()
477 		struct page *page, u64 start, u32 len)			\
480 	const u16 tmp = btrfs_subpage_calc_bitmap(fs_info, page, start, len); \
503 		struct page *page, u64 start, u32 len)			\
509 	btrfs_subpage_set_##name(fs_info, page, start, len);		\
512 		struct page *page, u64 start, u32 len)			\
518 	btrfs_subpage_clear_##name(fs_info, page, start, len);		\
521 		struct page *page, u64 start, u32 len)			\
525 	return btrfs_subpage_test_##name(fs_info, page, start, len);	\
528 		struct page *page, u64 start, u32 len)			\
534 	btrfs_subpage_clamp_range(page, &start, &len);			\
535 	btrfs_subpage_set_##name(fs_info, page, start, len);		\
538 		struct page *page, u64 start, u32 len)			\
544 	btrfs_subpage_clamp_range(page, &start, &len);			\
545 	btrfs_subpage_clear_##name(fs_info, page, start, len);		\
548 		struct page *page, u64 start, u32 len)			\
552 	btrfs_subpage_clamp_range(page, &start, &len);			\
553 	return btrfs_subpage_test_##name(fs_info, page, start, len);	\