14 typedef size_t (*iov_step_f)(void *iter_base, size_t progress, size_t len,
16 typedef size_t (*iov_ustep_f)(void __user *iter_base, size_t progress, size_t len,
27 	size_t progress = 0, remain;  in iterate_ubuf()  local
30 	progress = len - remain;  in iterate_ubuf()
31 	iter->iov_offset += progress;  in iterate_ubuf()
32 	iter->count -= progress;  in iterate_ubuf()
33 	return progress;  in iterate_ubuf()
44 	size_t progress = 0, skip = iter->iov_offset;  in iterate_iovec()  local
51 			remain = step(p->iov_base + skip, progress, part, priv, priv2);  in iterate_iovec()
53 			progress += consumed;  in iterate_iovec()
66 	iter->count -= progress;  in iterate_iovec()
67 	return progress;  in iterate_iovec()
78 	size_t progress = 0, skip = iter->iov_offset;  in iterate_kvec()  local
85 			remain = step(p->iov_base + skip, progress, part, priv, priv2);  in iterate_kvec()
87 			progress += consumed;  in iterate_kvec()
100 	iter->count -= progress;  in iterate_kvec()
101 	return progress;  in iterate_kvec()
112 	size_t progress = 0, skip = iter->iov_offset;  in iterate_bvec()  local
122 		remain = step(kaddr + offset % PAGE_SIZE, progress, part, priv, priv2);  in iterate_bvec()
126 		progress += consumed;  in iterate_bvec()
139 	iter->count -= progress;  in iterate_bvec()
140 	return progress;  in iterate_bvec()
151 	size_t progress = 0;  in iterate_xarray()  local
167 		offset = offset_in_folio(folio, start + progress);  in iterate_xarray()
175 			remain = step(base, progress, part, priv, priv2);  in iterate_xarray()
179 			progress += consumed;  in iterate_xarray()
191 	iter->iov_offset += progress;  in iterate_xarray()
192 	iter->count -= progress;  in iterate_xarray()
193 	return progress;  in iterate_xarray()
203 	size_t progress = len;  in iterate_discard()  local
205 	iter->count -= progress;  in iterate_discard()
206 	return progress;  in iterate_discard()