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| author | Jens Axboe <axboe@kernel.dk> | 2023-03-29 16:52:15 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-03-30 16:12:29 +0200 |
| commit | de4f5fed3f231a8ff4790bf52975f847b95b85ea (patch) | |
| tree | 0f546e08dadb0145ca9347ce3fc2b8936d48c5f6 /io_uring | |
| parent | block: ensure bio_alloc_map_data() deals with ITER_UBUF correctly (diff) | |
| download | linux-de4f5fed3f231a8ff4790bf52975f847b95b85ea.tar.xz linux-de4f5fed3f231a8ff4790bf52975f847b95b85ea.zip | |
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 <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/net.c | 4 | ||||
| -rw-r--r-- | io_uring/rw.c | 8 |
2 files changed, 6 insertions, 6 deletions
diff --git a/io_uring/net.c b/io_uring/net.c index 4040cf093318..89e839013837 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -184,8 +184,8 @@ static int io_setup_async_msg(struct io_kiocb *req, async_msg->msg.msg_name = &async_msg->addr; /* if were using fast_iov, set it to the new one */ if (iter_is_iovec(&kmsg->msg.msg_iter) && !kmsg->free_iov) { - size_t fast_idx = kmsg->msg.msg_iter.iov - kmsg->fast_iov; - async_msg->msg.msg_iter.iov = &async_msg->fast_iov[fast_idx]; + size_t fast_idx = iter_iov(&kmsg->msg.msg_iter) - kmsg->fast_iov; + async_msg->msg.msg_iter.__iov = &async_msg->fast_iov[fast_idx]; } return -EAGAIN; 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, |