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 A5799C433E1 for ; Sun, 24 May 2020 19:22:16 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 6C2FB20787 for ; Sun, 24 May 2020 19:22:16 +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="gxGduZqo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6C2FB20787 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 E426B80009; Sun, 24 May 2020 15:22:15 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D2CC280007; Sun, 24 May 2020 15:22:15 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B30A080009; Sun, 24 May 2020 15:22:15 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 9C1BA80007 for ; Sun, 24 May 2020 15:22:15 -0400 (EDT) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 5912A181AEF00 for ; Sun, 24 May 2020 19:22:15 +0000 (UTC) X-FDA: 76852583430.12.wave01_13aa5b2d36052 X-HE-Tag: wave01_13aa5b2d36052 X-Filterd-Recvd-Size: 3803 Received: from mail-pl1-f196.google.com (mail-pl1-f196.google.com [209.85.214.196]) by imf21.hostedemail.com (Postfix) with ESMTP for ; Sun, 24 May 2020 19:22:15 +0000 (UTC) Received: by mail-pl1-f196.google.com with SMTP id x10so6690702plr.4 for ; Sun, 24 May 2020 12:22:14 -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=gxGduZqosF0z63K53o9awU20QA6ufSZ5TTqRe+tv3AOsZ2QlQ979YXr+1dskXq52Jk HS3I9zTGgZsmogN4rJCO292dN+jQ4Bh81nqndOGDqgUTCuNwtxtCzXuJPlAMKQRJ58uA DuMNOBDX6nN/HrDjMdSSysjmoxpz5chCYgMsvnmdpOOufOk2jA7gdSzJR/TzXpAMz7Lj M0TIw38/7f79f2cKH+xUDuzBnClVTmIWWKOLweF65hex28srdE77jZIapgVeALrqEfAA ocGg0o8OhrW4mbtznbLks7cKK3H/ZDmHlmgcJ/0qYgXMDuB9nDi7913IThDZ9hVUMz+H 0p2w== 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=alTpZT2DA3ElAdqgK9DZIrAgoI/lttgBy6DiAF0Aw3wm6rYSbVvzklVHh+ohpEz9Xq 0svuScYiGKlIb4AGDdGQjDuh60382Q7rC5vGrV3WWPHmFL41Hs6GTFGS4niud23RtOho h27K+Ztry3Ndn1BnnkFz03eJ3X66rEkCcClA+1TavDR0NYhZse+Qil1XxRFX3dq0fwpR YeU7wzq6l5lecqD9JJOZvZRNGUM2bfEIJjxsq6dhAsBTKM/Xfyd6Fs/h1UGjFfZR9SRp w1sSRUFpCkRtGl+/uvYMM3SykG1cRSoxWnsAYK6h7t5ZAFwnK92R/jJhqU9Ifc2PhmXo ZXPg== X-Gm-Message-State: AOAM531wjwlylVEZvdJBOFjbVOTAl5Cx3YNjGPsirApWgoP5Gjwe5wtp 1fWeCrnnmF3nIjIn+/lLw2zbHA== X-Google-Smtp-Source: ABdhPJyWrtKyXRFlA4SwqdiGTTumD68oCqrgZnBOzPkJTTFSdRxzhdggPB+vLC5MAtEqdrvZvv1y/Q== X-Received: by 2002:a17:90a:648c:: with SMTP id h12mr17363317pjj.229.1590348133979; Sun, 24 May 2020 12:22:13 -0700 (PDT) Received: from x1.lan ([2605:e000:100e:8c61:c871:e701:52fa:2107]) by smtp.gmail.com with ESMTPSA id t21sm10312426pgu.39.2020.05.24.12.22.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 24 May 2020 12:22:13 -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: Sun, 24 May 2020 13:21:55 -0600 Message-Id: <20200524192206.4093-2-axboe@kernel.dk> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200524192206.4093-1-axboe@kernel.dk> References: <20200524192206.4093-1-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