From de4f5fed3f231a8ff4790bf52975f847b95b85ea Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 29 Mar 2023 08:52:15 -0600 Subject: iov_iter: add iter_iovec() helper This returns a pointer to the current iovec entry in the iterator. Only useful with ITER_IOVEC right now, but it prepares us to treat ITER_UBUF and ITER_IOVEC identically for the first segment. Rename struct iov_iter->iov to iov_iter->__iov to find any potentially troublesome spots, and also to prevent anyone from adding new code that accesses iter->iov directly. Signed-off-by: Jens Axboe --- io_uring/rw.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'io_uring/rw.c') diff --git a/io_uring/rw.c b/io_uring/rw.c index 4c233910e200..7573a34ea42a 100644 --- a/io_uring/rw.c +++ b/io_uring/rw.c @@ -503,10 +503,10 @@ static void io_req_map_rw(struct io_kiocb *req, const struct iovec *iovec, if (!iovec) { unsigned iov_off = 0; - io->s.iter.iov = io->s.fast_iov; - if (iter->iov != fast_iov) { - iov_off = iter->iov - fast_iov; - io->s.iter.iov += iov_off; + io->s.iter.__iov = io->s.fast_iov; + if (iter->__iov != fast_iov) { + iov_off = iter_iov(iter) - fast_iov; + io->s.iter.__iov += iov_off; } if (io->s.fast_iov != fast_iov) memcpy(io->s.fast_iov + iov_off, fast_iov + iov_off, -- cgit v1.2.1