From: Jens Axboe axboe@kernel.dk
commit 8a99734081775c012a4a6c442fdef0379fe52bdf upstream.
We should not remove the workqueue, we just need to ensure that the workqueues are synced. The workqueues are torn down on ctx removal.
Cc: stable@vger.kernel.org Fixes: 6b06314c47e1 ("io_uring: add file set registration") Reported-by: Stefan Hajnoczi stefanha@redhat.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/io_uring.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -2566,7 +2566,8 @@ static void io_destruct_skb(struct sk_bu { struct io_ring_ctx *ctx = skb->sk->sk_user_data;
- io_finish_async(ctx); + if (ctx->sqo_wq) + flush_workqueue(ctx->sqo_wq); unix_destruct_scm(skb); }