From: David Howells > Sent: Wednesday, August 16, 2023 2:01 PM > > David Laight <David.Laight@xxxxxxxxxx> wrote: > > > > > Couldn't the relevant code directly call __copy_from_iter_mc() ? > > Or a version then checked iov_is_copy_mc() and then fell > > back to the standard function. > > No, because the marked iterator is handed by the coredump code to > __kernel_write_iter() and thence on to who-knows-what driver - which will call > copy_from_iter() or some such. $DRIVER shouldn't need to know about > ->copy_mc. What about ITER_BVEC_MC ?? David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
