Re: [PATCH] io_uring: remove redundant variable pointer nxt and io_wq_assign_next call

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On 07/04/2020 01:54, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> 
> An earlier commit "io_uring: remove @nxt from handlers" removed the
> setting of pointer nxt and now it is always null, hence the non-null
> check and call to io_wq_assign_next is redundant and can be removed.
> 
> Addresses-Coverity: ("'Constant' variable guard")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
>  fs/io_uring.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/fs/io_uring.c b/fs/io_uring.c
> index 14efcf0a3070..b594fa0bd210 100644
> --- a/fs/io_uring.c
> +++ b/fs/io_uring.c
> @@ -3509,14 +3509,11 @@ static void __io_sync_file_range(struct io_kiocb *req)
>  static void io_sync_file_range_finish(struct io_wq_work **workptr)
>  {
>  	struct io_kiocb *req = container_of(*workptr, struct io_kiocb, work);
> -	struct io_kiocb *nxt = NULL;
>  
>  	if (io_req_cancelled(req))
>  		return;
>  	__io_sync_file_range(req);
>  	io_put_req(req); /* put submission ref */
> -	if (nxt)
> -		io_wq_assign_next(workptr, nxt);

Works, but it should be io_steal_work() instead

-- 
Pavel Begunkov



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