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,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 92E74C433E0 for ; Tue, 26 May 2020 19:51:30 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 535282088E for ; Tue, 26 May 2020 19:51:30 +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="OuGZsDad" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 535282088E 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 91181800B7; Tue, 26 May 2020 15:51:29 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 89A0580010; Tue, 26 May 2020 15:51:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 763DA800B7; Tue, 26 May 2020 15:51:29 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0019.hostedemail.com [216.40.44.19]) by kanga.kvack.org (Postfix) with ESMTP id 5F7A780010 for ; Tue, 26 May 2020 15:51:29 -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 0C47F181AC9BF for ; Tue, 26 May 2020 19:51:29 +0000 (UTC) X-FDA: 76859914698.20.key93_0f0d94a26d4c X-HE-Tag: key93_0f0d94a26d4c X-Filterd-Recvd-Size: 3831 Received: from mail-pl1-f194.google.com (mail-pl1-f194.google.com [209.85.214.194]) by imf04.hostedemail.com (Postfix) with ESMTP for ; Tue, 26 May 2020 19:51:28 +0000 (UTC) Received: by mail-pl1-f194.google.com with SMTP id t7so9113602plr.0 for ; Tue, 26 May 2020 12:51:28 -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=OuGZsDadMk0ouSxBbagElzrDsOFsdbddmk5eH65ga2Wxc3HZgfLVLJcFyhEw8usAcZ HTB+HylhbVE98IfGgUAnUH7V2yMwJESFU4207FlXryYh0fm8menLFq7jByDucoN4/oPf rJyxXSFaoAe7D9VKjzoCoCQGXgjxaau5MP+A01WQYIW/16fxIm7sCIPAjYEsvtXGsM60 0/ikp/pt7voJ76qWQsjOrJT4Xr0rTeQIodW8eo5MyOLN0+AY4TmYJZDl/Sm0O9y1vtWI bc7fhd+puE49SaeiR2JWPdxtuJM7gyKt8uZOc2YIZRlech7S/BIEWD8kxVapjAUHpLtp dpXw== 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=e9xz0wLre25p1AMjn8oj3pcK9wS8X2RxZWxSt2v5biggSi0kdkM9fR48hz0T+4CpYR zyBZ2ICXS0E2onaefQce3PY//67vDDS7EVpnU1aN7Kw18R4M2jnpXBKXB5ClXIMqWL0C ir6IY632h85xmvcBzEJYD05kDMecwnOaXFmKdSDdiEcofPZj6cLtVlc1ng1vWCCaWM3A xDnbGxdwWWDTl9hcMqcIUYmWOBunNwYN2iLwecOqg/wGZdbzJHKhjqamYeNPL3dB99jJ a3EPTPcmjwXie9CzUisLo+flAT6Mxp/knWQ+dHsakSNQB/4Ax1NYHQMbn8hyTk1NU2+9 3sVQ== X-Gm-Message-State: AOAM530Z/GgA+gIarMwUIWMnKRVWrdASpwaievQ4ncTTJdDxZ4PvVCPm sVsc7dsutVboVqQAyNAroitxYQ== X-Google-Smtp-Source: ABdhPJz8Ax0r8XMmPGcDuG+vpoiMfRCzG//xGTpSe/ZiXq6nh5Ywfeb0pH34jS4EKxW64rcgwO66Uw== X-Received: by 2002:a17:90a:2a8e:: with SMTP id j14mr894757pjd.136.1590522687551; Tue, 26 May 2020 12:51:27 -0700 (PDT) Received: from x1.lan ([2605:e000:100e:8c61:94bb:59d2:caf6:70e1]) by smtp.gmail.com with ESMTPSA id c184sm313943pfc.57.2020.05.26.12.51.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 May 2020 12:51:27 -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, akpm@linux-foundation.org, Jens Axboe Subject: [PATCH 01/12] block: read-ahead submission should imply no-wait as well Date: Tue, 26 May 2020 13:51:12 -0600 Message-Id: <20200526195123.29053-2-axboe@kernel.dk> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200526195123.29053-1-axboe@kernel.dk> References: <20200526195123.29053-1-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