15 typedef size_t (*iov_step_f)(void *iter_base, size_t progress, size_t len,
17 typedef size_t (*iov_ustep_f)(void __user *iter_base, size_t progress, size_t len,
28 	size_t progress = 0, remain;  in iterate_ubuf()  local
31 	progress = len - remain;  in iterate_ubuf()
32 	iter->iov_offset += progress;  in iterate_ubuf()
33 	iter->count -= progress;  in iterate_ubuf()
34 	return progress;  in iterate_ubuf()
45 	size_t progress = 0, skip = iter->iov_offset;  in iterate_iovec()  local
52 			remain = step(p->iov_base + skip, progress, part, priv, priv2);  in iterate_iovec()
54 			progress += consumed;  in iterate_iovec()
67 	iter->count -= progress;  in iterate_iovec()
68 	return progress;  in iterate_iovec()
79 	size_t progress = 0, skip = iter->iov_offset;  in iterate_kvec()  local
86 			remain = step(p->iov_base + skip, progress, part, priv, priv2);  in iterate_kvec()
88 			progress += consumed;  in iterate_kvec()
101 	iter->count -= progress;  in iterate_kvec()
102 	return progress;  in iterate_kvec()
113 	size_t progress = 0, skip = iter->iov_offset;  in iterate_bvec()  local
123 		remain = step(kaddr + offset % PAGE_SIZE, progress, part, priv, priv2);  in iterate_bvec()
127 		progress += consumed;  in iterate_bvec()
140 	iter->count -= progress;  in iterate_bvec()
141 	return progress;  in iterate_bvec()
153 	size_t progress = 0, skip = iter->iov_offset;  in iterate_folioq()  local
173 		remain = step(base, progress, part, priv, priv2);  in iterate_folioq()
177 		progress += consumed;  in iterate_folioq()
194 	iter->count -= progress;  in iterate_folioq()
195 	return progress;  in iterate_folioq()
206 	size_t progress = 0;  in iterate_xarray()  local
222 		offset = offset_in_folio(folio, start + progress);  in iterate_xarray()
230 			remain = step(base, progress, part, priv, priv2);  in iterate_xarray()
234 			progress += consumed;  in iterate_xarray()
246 	iter->iov_offset += progress;  in iterate_xarray()
247 	iter->count -= progress;  in iterate_xarray()
248 	return progress;  in iterate_xarray()
258 	size_t progress = len;  in iterate_discard()  local
260 	iter->count -= progress;  in iterate_discard()
261 	return progress;  in iterate_discard()