On Tue, Apr 09, 2024 at 09:22:15AM -0600, Jens Axboe wrote: > Add variant of copy_to_iter() that either copies the full amount asked > for and return success, or ensures that the iov_iter is back to where > it started on failure and returns false. FWIW, see git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git #work.iov_iter There was an open-coded instance (skb_copy_linear()) that I'd converted to that helper in the same commit; I can split it, of course, but I don't see much point in that.
