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=-9.5 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 CEA4AC433E2 for ; Sat, 23 May 2020 18:58:03 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 92D5620735 for ; Sat, 23 May 2020 18:58:03 +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="a87Bs6xG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 92D5620735 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 0842380009; Sat, 23 May 2020 14:58:03 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 00C6480007; Sat, 23 May 2020 14:58:02 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D3D5280009; Sat, 23 May 2020 14:58:02 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0221.hostedemail.com [216.40.44.221]) by kanga.kvack.org (Postfix) with ESMTP id B300E80007 for ; Sat, 23 May 2020 14:58:02 -0400 (EDT) Received: from smtpin01.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 6F8BD181AEF15 for ; Sat, 23 May 2020 18:58:02 +0000 (UTC) X-FDA: 76848893604.01.crate06_29102f4554838 X-HE-Tag: crate06_29102f4554838 X-Filterd-Recvd-Size: 3795 Received: from mail-pf1-f196.google.com (mail-pf1-f196.google.com [209.85.210.196]) by imf46.hostedemail.com (Postfix) with ESMTP for ; Sat, 23 May 2020 18:58:02 +0000 (UTC) Received: by mail-pf1-f196.google.com with SMTP id z64so2240996pfb.1 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=IU7BPs67Nh6acWNCptLoy6QUajaZvlGXBUQ8hr9Jq8ap0uwf3Gnwf7LA94r+PKaUcM x9GP4qeMseMhHEuj2hvLbFAT4s2YlzfSF69eYbfWdaXLa1RIyi1NtmvBNdchIw3TYZxP oqTsxoPRLUcNglkgqLTnVa0P5FptRJc2gJVXt5HmYDrrVONoTVEroNE519arZV4MGv+I aTWSOkXE8ARzz4OzBZ4DCWorFfwAz2qJRp5WB5i2JsDtwGn4ZmRguUhidH2k0P9MMwol 1DWZCtJV4UmQOToo4VLbue3YiFAWY1S1sgT9PZiP9SbHO6rFtNe4LJBNggK37506lHXf 4HcA== X-Gm-Message-State: AOAM532ndDTNZkLo89/h9FwiqNR++5mEnmHW+J415rkZcCOqVZT/4aox IbbwnBbAgr0C/pZty+re27ZMjw== 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: 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