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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 E58A4C433E2 for ; Fri, 22 May 2020 20:23:21 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id AA75320723 for ; Fri, 22 May 2020 20:23:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="oluJiB9k" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AA75320723 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 3B8C080009; Fri, 22 May 2020 16:23:21 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3690880007; Fri, 22 May 2020 16:23:21 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2A99380009; Fri, 22 May 2020 16:23:21 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0230.hostedemail.com [216.40.44.230]) by kanga.kvack.org (Postfix) with ESMTP id 131E180007 for ; Fri, 22 May 2020 16:23:21 -0400 (EDT) Received: from smtpin20.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id C1156181AEF1F for ; Fri, 22 May 2020 20:23:20 +0000 (UTC) X-FDA: 76845479760.20.dust43_113f4872c10 X-HE-Tag: dust43_113f4872c10 X-Filterd-Recvd-Size: 3798 Received: from mail-pj1-f66.google.com (mail-pj1-f66.google.com [209.85.216.66]) by imf16.hostedemail.com (Postfix) with ESMTP for ; Fri, 22 May 2020 20:23:20 +0000 (UTC) Received: by mail-pj1-f66.google.com with SMTP id q24so5460284pjd.1 for ; Fri, 22 May 2020 13:23:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=DT9kV8IQxC/D+uhFJsefv+iJT3TxYB4ReZ7s4ZFOil0=; b=oluJiB9kWUp1jQn6GyLmG8WAT4m3lKYyoaZWl/EYudmvX4dpan5EUM8v9K2zM1/sA7 O3g1BfDhqlwNJGIPOYmdgugrSlOXilKAkvTeGRZUAyg+ubdWg9R3UvtbrB8ako657CER OJig952C9v1iZGI2ZOQhlCVH6ErL4Ubx1gxOzYooasGRhDU0/Dt65urTRTAMtn67pdgQ gEFv59qa47MpUvtQ+b2fWdA5BKzUAJwUSiYvK2yAGfBa9QmyVAXuxxZeZrInMJdae2Zk mY5mg1VVp8HXmhTWFTyUwV1HXJ8c3ncMAaK9kqA0E1p1Xbei/hD9gc3x5raO9d4lvh4l JTXw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=DT9kV8IQxC/D+uhFJsefv+iJT3TxYB4ReZ7s4ZFOil0=; b=LYpEwS5YSvczIJfD/ec9WO7FvAvVqxx7Szclwyt918PJT4HsyVJSZ3eSDXabLpCveJ hUCIKqX8bRPgRBqUtZmvU/6C5OvNq5gbf0m2hFPJ6x9KaYRMbcMEUt/ZKIEmfztT1EFV jFD9qoVJlz6HW4czJByYiOJAK5kwfDpUOs8U8G3ESKEbPpRrOdBZr1uTOEZMZjQFhiKG iRF9jxYhF+Bss0A9Rmy6jhrf+whdh1MECOEQNXIjnFWqXulkg3QURGUE7ygMciWJZeSs 6NIQVok3KfPmDca2pktRj6pJgz8PcG0jviUFTsOEDz+xEPyuI6ldemSD2P7Dk5EnIHG3 iMOw== X-Gm-Message-State: AOAM531qUijTYG2gGRTXsG+UaeJ6ihKsiBCd4eb3OUJNDbVfpNNid9Zl wtuCzBBLsWZjRRzHMVXoos4v0w== X-Google-Smtp-Source: ABdhPJwRmiBEyWg7pdyhPoLxCIRWXwfGbwz6AlixTjtFq9I6DrZDtT63kPMRKd8YJFJc1xW8WultIQ== X-Received: by 2002:a17:90a:d3ce:: with SMTP id d14mr6342767pjw.46.1590178999200; Fri, 22 May 2020 13:23:19 -0700 (PDT) Received: from x1.lan ([2605:e000:100e:8c61:e0db:da55:b0a4:601]) by smtp.gmail.com with ESMTPSA id e19sm7295561pfn.17.2020.05.22.13.23.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 May 2020 13:23:18 -0700 (PDT) From: Jens Axboe To: io-uring@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Jens Axboe Subject: [PATCH 01/11] block: read-ahead submission should imply no-wait as well Date: Fri, 22 May 2020 14:23:01 -0600 Message-Id: <20200522202311.10959-2-axboe@kernel.dk> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200522202311.10959-1-axboe@kernel.dk> References: <20200522202311.10959-1-axboe@kernel.dk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: As read-ahead is opportunistic, don't block for request allocation. Signed-off-by: Jens Axboe --- include/linux/blk_types.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index ccb895f911b1..c296463c15eb 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -374,7 +374,8 @@ enum req_flag_bits { #define REQ_INTEGRITY (1ULL << __REQ_INTEGRITY) #define REQ_FUA (1ULL << __REQ_FUA) #define REQ_PREFLUSH (1ULL << __REQ_PREFLUSH) -#define REQ_RAHEAD (1ULL << __REQ_RAHEAD) +#define REQ_RAHEAD \ + ((1ULL << __REQ_RAHEAD) | (1ULL << __REQ_NOWAIT)) #define REQ_BACKGROUND (1ULL << __REQ_BACKGROUND) #define REQ_NOWAIT (1ULL << __REQ_NOWAIT) #define REQ_CGROUP_PUNT (1ULL << __REQ_CGROUP_PUNT) --=20 2.26.2