diff options
| author |   Jens Axboe <axboe@kernel.dk> | 2025-08-21 13:24:57 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-08-21 13:54:01 -0600 |
| commit | e4e6aaea46b7be818eba0510ba68d30df8689ea3 (patch) | |
| tree | 2347c2cd0c784d5e28ff901fa737a739fdbce4e3 | |
| parent | io_uring/futex: ensure io_futex_wait() cleans up properly on failure (diff) | |
| download | wireguard-linux-e4e6aaea46b7be818eba0510ba68d30df8689ea3.tar.xz wireguard-linux-e4e6aaea46b7be818eba0510ba68d30df8689ea3.zip | |
io_uring: clear ->async_data as part of normal init
Opcode handlers like POLL_ADD will use ->async_data as the pointer for
double poll handling, which is a bit different than the usual case
where it's strictly gated by the REQ_F_ASYNC_DATA flag. Be a bit more
proactive in handling ->async_data, and clear it to NULL as part of
regular init. Init is touching that cacheline anyway, so might as well
clear it.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | io_uring/io_uring.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 4ef69dd58734..93633613a165 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -2119,6 +2119,7 @@ static int io_init_req(struct io_ring_ctx *ctx, struct io_kiocb *req, req->file = NULL; req->tctx = current->io_uring; req->cancel_seq_set = false; + req->async_data = NULL; if (unlikely(opcode >= IORING_OP_LAST)) { req->opcode = 0; |