Dominique Martinet <asmadeus@xxxxxxxxxxxxx> wrote: > I take it the read helper would just iterate as long as there's data > still required to read, writing from THPs wouldn't do that? Yep. As long as you read some data, the helper will call you again if you didn't read everything. subreq->transferred keeps track of what has been read so far. You can also tell the helper just to clear the rest by setting NETFS_SREQ_CLEAR_TAIL. The helper tries to hide the pages from you as far as possible. Using ITER_XARRAY hides that even more. David
