From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ADF0CC433F5 for ; Tue, 10 May 2022 15:44:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346211AbiEJPsa (ORCPT ); Tue, 10 May 2022 11:48:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60186 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346190AbiEJPsL (ORCPT ); Tue, 10 May 2022 11:48:11 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8E14D2802C4; Tue, 10 May 2022 08:44:02 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 6FD9461329; Tue, 10 May 2022 15:44:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5C307C385C2; Tue, 10 May 2022 15:44:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652197441; bh=yH5M1c0ldN5R+FkK/zu3biDlTtfEvvdoiBULCRmiLhA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fkoQ5I6F9BF5mV19aHe3/YQ4iYqZTHaCQXSKYsZk8cLxEpRKL1XCieZ9icBO9RYee sawe9fWx9vFYD4DNM+058n6JEMvl/9waAfg1/n/WQC2roAIqVoX8rIlcVTZoMSZ2zA GKw/51cAgZ7wZ3FHTZsarc32WlKW0tZuJhSwo51af6l0RfzlA22QWJi3bvfoat/8it Ji6BMKSpYhOdZv5+zGS8JiqDpixXqlU7sGtLO4uyPWrJkwOnqW0n4G139Gl4Mxbcce W8xcL+MvtgOZ/BuG9kNcVNoxtFitboOdFYeUvN/FeKNmXAlyygQdTCgNvmn2jxNotY Dm0+4pSW0VNJQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jens Axboe , Sasha Levin , io-uring@vger.kernel.org Subject: [PATCH AUTOSEL 5.17 10/21] io_uring: assign non-fixed early for async work Date: Tue, 10 May 2022 11:43:29 -0400 Message-Id: <20220510154340.153400-10-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220510154340.153400-1-sashal@kernel.org> References: <20220510154340.153400-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jens Axboe [ Upstream commit a196c78b5443fc61af2c0490213b9d125482cbd1 ] We defer file assignment to ensure that fixed files work with links between a direct accept/open and the links that follow it. But this has the side effect that normal file assignment is then not complete by the time that request submission has been done. For deferred execution, if the file is a regular file, assign it when we do the async prep anyway. Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin --- fs/io_uring.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index 87df37912055..a0680046ff3c 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -6572,7 +6572,12 @@ static int io_req_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) static int io_req_prep_async(struct io_kiocb *req) { - if (!io_op_defs[req->opcode].needs_async_setup) + const struct io_op_def *def = &io_op_defs[req->opcode]; + + /* assign early for deferred execution for non-fixed file */ + if (def->needs_file && !(req->flags & REQ_F_FIXED_FILE)) + req->file = io_file_get_normal(req, req->fd); + if (!def->needs_async_setup) return 0; if (WARN_ON_ONCE(req_has_async_data(req))) return -EFAULT; -- 2.35.1