36 static struct buffer_head *wnd_map(struct wnd_bitmap *wnd, size_t iw);
508 	size_t wpos, wbit, iw, vbo;  in wnd_rescan()  local
528 	for (iw = 0; iw < wnd->nwnd; iw++) {  in wnd_rescan()
529 		if (iw + 1 == wnd->nwnd)  in wnd_rescan()
533 			if (!wnd->free_bits[iw]) {  in wnd_rescan()
543 			if (wbits == wnd->free_bits[iw]) {  in wnd_rescan()
580 			wnd->free_bits[iw] = frb;  in wnd_rescan()
697 static struct buffer_head *wnd_map(struct wnd_bitmap *wnd, size_t iw)  in wnd_map()  argument
707 	vbo = (u64)iw << sb->s_blocksize_bits;  in wnd_map()
731 	size_t iw = bit >> (sb->s_blocksize_bits + 3);  in wnd_set_free()  local
736 	for (; iw < wnd->nwnd && bits; iw++, bit += op, bits -= op, wbit = 0) {  in wnd_set_free()
737 		if (iw + 1 == wnd->nwnd)  in wnd_set_free()
742 		bh = wnd_map(wnd, iw);  in wnd_set_free()
752 		wnd->free_bits[iw] += op;  in wnd_set_free()
772 	size_t iw = bit >> (sb->s_blocksize_bits + 3);  in wnd_set_used()  local
778 	for (; iw < wnd->nwnd && bits; iw++, bit += op, bits -= op, wbit = 0) {  in wnd_set_used()
779 		if (unlikely(iw + 1 == wnd->nwnd))  in wnd_set_used()
784 		bh = wnd_map(wnd, iw);  in wnd_set_used()
793 		wnd->free_bits[iw] -= op;  in wnd_set_used()
853 	size_t iw = bit >> (sb->s_blocksize_bits + 3);  in wnd_is_free_hlp()  local
858 	for (; iw < wnd->nwnd && bits; iw++, bits -= op, wbit = 0) {  in wnd_is_free_hlp()
859 		if (unlikely(iw + 1 == wnd->nwnd))  in wnd_is_free_hlp()
864 		if (wbits != wnd->free_bits[iw]) {  in wnd_is_free_hlp()
866 			struct buffer_head *bh = wnd_map(wnd, iw);  in wnd_is_free_hlp()
923 	size_t iw = bit >> (sb->s_blocksize_bits + 3);  in wnd_is_used()  local
944 	for (; iw < wnd->nwnd && bits; iw++, bits -= op, wbit = 0) {  in wnd_is_used()
945 		if (unlikely(iw + 1 == wnd->nwnd))  in wnd_is_used()
950 		if (wnd->free_bits[iw]) {  in wnd_is_used()
952 			struct buffer_head *bh = wnd_map(wnd, iw);  in wnd_is_used()
982 	size_t iw, prev_tail, nwnd, wbit, ebit, zbit, zend;  in wnd_find()  local
1137 	iw = hint >> log2_bits;  in wnd_find()
1152 	for (; iw < nwnd; iw++) {  in wnd_find()
1153 		wbit = iw << log2_bits;  in wnd_find()
1155 		if (!wnd->free_bits[iw]) {  in wnd_find()
1167 		if (unlikely(iw + 1 == nwnd)) {  in wnd_find()
1193 				if (wnd->free_bits[iw] == wzend - wzbit) {  in wnd_find()
1200 				bh = wnd_map(wnd, iw);  in wnd_find()
1243 		if (!wpos && fbits_valid && wnd->free_bits[iw] == wbits) {  in wnd_find()
1257 		bh = wnd_map(wnd, iw);  in wnd_find()
1331 	size_t bits, iw, new_wnd;  in wnd_extend()  local
1360 	for (iw = old_bits >> (sb->s_blocksize_bits + 3); bits; iw += 1) {  in wnd_extend()
1366 		if (iw + 1 == new_wnd)  in wnd_extend()
1370 		vbo = (u64)iw * blocksize;  in wnd_extend()
1384 		wnd->total_zeroes += frb - wnd->free_bits[iw];  in wnd_extend()
1385 		wnd->free_bits[iw] = frb;  in wnd_extend()
1429 	size_t iw = lcn_from >> (sb->s_blocksize_bits + 3);  in ntfs_trim_fs()  local
1443 	for (; iw < wnd->nwnd; iw++, wbit = 0) {  in ntfs_trim_fs()
1444 		CLST lcn_wnd = iw * wbits;  in ntfs_trim_fs()
1450 		if (!wnd->free_bits[iw])  in ntfs_trim_fs()
1453 		if (iw + 1 == wnd->nwnd)  in ntfs_trim_fs()
1459 		bh = wnd_map(wnd, iw);  in ntfs_trim_fs()