Commit 8a997340 authored Oct 09, 2019 by Jens Axboe

io_uring: only flush workqueues on fileset removal



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: 6b06314c ("io_uring: add file set registration")
Reported-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent 6805b32e

fs/io_uring.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -2866,8 +2866,12 @@ static void io_finish_async(struct io_ring_ctx *ctx)
		static void io_destruct_skb(struct sk_buff *skb)
		{
		struct io_ring_ctx *ctx = skb->sk->sk_user_data;
		int i;

		for (i = 0; i < ARRAY_SIZE(ctx->sqo_wq); i++)
		if (ctx->sqo_wq[i])
		flush_workqueue(ctx->sqo_wq[i]);

		io_finish_async(ctx);
		unix_destruct_scm(skb);
		}