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authorJens Axboe <axboe@kernel.dk>2019-10-09 14:40:13 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-10-17 13:47:33 -0700
commit9392e3a7beef809bf244470ddffc4ef24c43c40f (patch)
tree94b70e90644de2babd67e0d7376740118c1aed0b
parent58cd9be912c3f8c2d29f3a8bb73badfbe739dfb6 (diff)
io_uring: only flush workqueues on fileset removal
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>
-rw-r--r--fs/io_uring.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 06d048341fa4..30149652c379 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2566,7 +2566,8 @@ static void io_destruct_skb(struct sk_buff *skb)
{
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);
}