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=-9.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, 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 E6AC5C433E0 for ; Sat, 23 May 2020 18:58:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C6FC720787 for ; Sat, 23 May 2020 18:58:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="a87Bs6xG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728622AbgEWS6D (ORCPT ); Sat, 23 May 2020 14:58:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36564 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728319AbgEWS6B (ORCPT ); Sat, 23 May 2020 14:58:01 -0400 Received: from mail-pf1-x444.google.com (mail-pf1-x444.google.com [IPv6:2607:f8b0:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4EED6C08C5C2 for ; Sat, 23 May 2020 11:58:01 -0700 (PDT) Received: by mail-pf1-x444.google.com with SMTP id q8so6763757pfu.5 for ; Sat, 23 May 2020 11:58:01 -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=a87Bs6xGjaGsCBlocxfqOxy2zUrVZ1peF9M9El8QQmFnxZ4ofnyrA5X/03ZjgM5oMk zf0D9gsPh6iz68c+lczEGQM3V/GADtGDtxRQ31jmSVBKL1jK04nvWfXWvIUImNfnH3kf iDDUDGAnkjQgjcXuQ6a4VuWuEC8bTOR7qieLkAE391AGwrp2msXuEG5eXaF9F0sTB4El xJRLA5INBmlDwvcdz5MRIV2c+bmSNsIetglQf8jjepx0Kkn5lCf+xSkGUABJGpgf9L5C 7oa9Su9IFvIN+49vDAK5NqyrW+NLNVYtYBXw4n/n1hQuT6+hy/YomwcPhAuxTRqu1mZp QD6g== 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=McKoVh+N19/by+JX+tAFDeAdWMpkmvRdXmDrSN1l5r9HR7nM2gqEEuH+nsqsb2GdVD oUdOqfNkgOYYhLVA54iurzj+ZJggBqZIiXXq+GKV6I3LesHC/aMMYKC0XrK+j8Fk1Ouw GR3r21z20iat6qIzVaN5Ker/91eVMwarY2xUIDQz/qALhFlSMMC1+EFb2a6r3hBruxKX QX6BPvofGDNMZ+YUDmF4F05olSXdtql+9/z5ki5LBU/h/tZbY3FSmIw4uEOqQn9+/exD 7Lx+Sl6XBfV3HRmNCNrd0II1wS11I/GNb+iwLdav4nuc+uChXnLIw3dBVZh2W3WtGrh4 H6cQ== X-Gm-Message-State: AOAM531J/hMY5y9y+rKWn8HxCZDFxTQwyoRF8bgGnUWw8IHjcQPya6ib 4Gql/r85VulXM0OWEFy03CVlwg== X-Google-Smtp-Source: ABdhPJxn7lC8B7nFRg/yRVy5DZn0o0nXIqRSMuIOyfCbYvam4NLOj1/fhahVe0+8oMsT4fckX4/7FQ== X-Received: by 2002:a63:145f:: with SMTP id 31mr19792396pgu.383.1590260280791; Sat, 23 May 2020 11:58:00 -0700 (PDT) Received: from x1.lan ([2605:e000:100e:8c61:c94:a67a:9209:cf5f]) by smtp.gmail.com with ESMTPSA id 25sm9297319pjk.50.2020.05.23.11.57.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 23 May 2020 11:58:00 -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 01/12] block: read-ahead submission should imply no-wait as well Date: Sat, 23 May 2020 12:57:44 -0600 Message-Id: <20200523185755.8494-2-axboe@kernel.dk> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200523185755.8494-1-axboe@kernel.dk> References: <20200523185755.8494-1-axboe@kernel.dk> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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) -- 2.26.2