io_uring/net: copy addr for zc on POLL_FIRST
authorPavel Begunkov <asml.silence@gmail.com>
Thu, 8 Sep 2022 13:01:10 +0000 (14:01 +0100)
committerJens Axboe <axboe@kernel.dk>
Thu, 8 Sep 2022 14:28:38 +0000 (08:28 -0600)
commit3c8400532dd8305024ff6eea38707de20b1b9822
tree09123617a3106984f311f5df155a87b6552fdf06
parent336d28a8f38013a069f2d46e73aaa1880ef17a47
io_uring/net: copy addr for zc on POLL_FIRST

Every time we return from an issue handler and expect the request to be
retried we should also setup it for async exec ourselves. Do that when
we return on IORING_RECVSEND_POLL_FIRST in io_sendzc(), otherwise it'll
re-read the address, which might be a surprise for the userspace.

Fixes: 092aeedb750a9 ("io_uring: allow to pass addr into sendzc")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/ab1d0657890d6721339c56d2e161a4bba06f85d0.1662642013.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring/net.c