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 X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8F342C4321A for ; Fri, 19 Mar 2021 12:21:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 60FB764F70 for ; Fri, 19 Mar 2021 12:21:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231148AbhCSMUu (ORCPT ); Fri, 19 Mar 2021 08:20:50 -0400 Received: from mail.kernel.org ([198.145.29.99]:58626 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231146AbhCSMUc (ORCPT ); Fri, 19 Mar 2021 08:20:32 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id E305F64F6C; Fri, 19 Mar 2021 12:20:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1616156432; bh=qWFoHpBrF4dpwXN2n6df7Y62R8OLa8PApV3+Z+/BPsM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sTNx4zCORIhzm2MfiyuS2Z6mRVUb28fX+AQLL+xfWCasgCk/zVi4rY6xYC0ZLAmEW 37+nN2MlMU8JR4PzQqHi1NSlmcXH5ifoFotVr6l3ZqmmWIuIuJaBMz/PJ40t9cfmvg mBZhRoEKk7U7NoS90a7ItNG1CJVIi0SGS+Km3ckU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jens Axboe , Sasha Levin Subject: [PATCH 5.11 11/31] io_uring: clear IOCB_WAITQ for non -EIOCBQUEUED return Date: Fri, 19 Mar 2021 13:19:05 +0100 Message-Id: <20210319121747.564169989@linuxfoundation.org> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20210319121747.203523570@linuxfoundation.org> References: <20210319121747.203523570@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jens Axboe [ Upstream commit b5b0ecb736f1ce1e68eb50613c0cfecff10198eb ] The callback can only be armed, if we get -EIOCBQUEUED returned. It's important that we clear the WAITQ bit for other cases, otherwise we can queue for async retry and filemap will assume that we're armed and return -EAGAIN instead of just blocking for the IO. Cc: stable@vger.kernel.org # 5.9+ Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin --- fs/io_uring.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/io_uring.c b/fs/io_uring.c index c18e4a334614..262fd4cfd3ad 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -3587,6 +3587,7 @@ static int io_read(struct io_kiocb *req, bool force_nonblock, goto out_free; } else if (ret > 0 && ret < io_size) { /* we got some bytes, but not all. retry. */ + kiocb->ki_flags &= ~IOCB_WAITQ; goto retry; } done: -- 2.30.1