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 392BDC433E0 for ; Sat, 23 May 2020 01:51:20 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id F003F20884 for ; Sat, 23 May 2020 01:51:19 +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="ETmKby8p" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F003F20884 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 9F4F080012; Fri, 22 May 2020 21:51:11 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 97D3B80007; Fri, 22 May 2020 21:51:11 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7FAF980012; Fri, 22 May 2020 21:51:11 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0055.hostedemail.com [216.40.44.55]) by kanga.kvack.org (Postfix) with ESMTP id 6450980007 for ; Fri, 22 May 2020 21:51:11 -0400 (EDT) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 2A861180AD820 for ; Sat, 23 May 2020 01:51:11 +0000 (UTC) X-FDA: 76846305942.08.push80_61a02d6adff47 X-HE-Tag: push80_61a02d6adff47 X-Filterd-Recvd-Size: 4133 Received: from mail-pg1-f193.google.com (mail-pg1-f193.google.com [209.85.215.193]) by imf01.hostedemail.com (Postfix) with ESMTP for ; Sat, 23 May 2020 01:51:10 +0000 (UTC) Received: by mail-pg1-f193.google.com with SMTP id t11so5832650pgg.2 for ; Fri, 22 May 2020 18:51:10 -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=JH4qffDw1bR16LSZOmXHQ8vTjhgFWUTnPL/hN0raEaw=; b=ETmKby8pAAIxY9U6WKn9CNosQ44mYgxTdTEtopdfdIDXO+NjGX+ifvqGeQRY+HJLIA zY/uuUSY7ifcyny8cCud0KJJtWED2SwscDrPgSbt9iDpo6l5rWhZ/iWY3YeImMCN8iMw L/7j62wezVNEzhqDM3bI8PBpBnkH7SjhNbw41sQr28LB9x44BGLyFn6rdBNi9M1yaRJJ XZU/iC4PhJhfemfcMMM8/912GLbEFK+hudvmr0EFF29TKybjESBwie4GPrS5paBlNGpI +3XhOzxy9MSMPaP2RNYzlt8xEZiiLsPjce+rDPBpL7L7WQNe5ic1esa1XcBzqGkfkR/u tRNA== 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=JH4qffDw1bR16LSZOmXHQ8vTjhgFWUTnPL/hN0raEaw=; b=INPOCqAesPGxUtwWU+mthnkpEdmiESgL21rcmOcadJ4SYaou00zsEtpCV8j/5cfbnu AvZjRNWXbXmOwDhdEWWka0yQCCBB/CFVMwxYWrOcPyrfMWxa67lw/qb75MhWlo5PN/OB ALvtXXebZZkP6DBvNwzyPM7Ggw+xqUfC7WlUusfTCuUpZB0Xn0BQe+ZjI6qeb6lDP75I vIgjcJIeIVgSmlZABFALFVVesbIcd6KSi7/PMwYSWticR+lL+BKZtwcgGePA4TRjcPoB rI0jcN55brr1B/Lo2KBiJySwDmbaYpYzELCg195pr8r/d/fWh4t7yYYryDHdb9mqZdIn M6ig== X-Gm-Message-State: AOAM530FYTdrS/F8+3+ZbA/2iVLX5WZNpHI6WMs1zw89p2vtQFyacRVQ NuHUcpGK1thY12mc/uCBIx6N/A== X-Google-Smtp-Source: ABdhPJz0nFKgn1N3JiIfLboWuIb5grjg380HgPkl+kUx5EXcYlCR6fXRG759tLrdb0IJ28scGhXSoQ== X-Received: by 2002:a62:641:: with SMTP id 62mr6411983pfg.283.1590198669882; Fri, 22 May 2020 18:51:09 -0700 (PDT) Received: from x1.lan ([2605:e000:100e:8c61:e0db:da55:b0a4:601]) by smtp.gmail.com with ESMTPSA id a71sm8255477pje.0.2020.05.22.18.51.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 May 2020 18:51:09 -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 10/11] mm: add kiocb_wait_page_async_init() helper Date: Fri, 22 May 2020 19:50:48 -0600 Message-Id: <20200523015049.14808-11-axboe@kernel.dk> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200523015049.14808-1-axboe@kernel.dk> References: <20200523015049.14808-1-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: Checks if the file supports it, and initializes the values that we need. Caller passes in 'data' pointer, if any, and the callback function to be used. Signed-off-by: Jens Axboe --- include/linux/pagemap.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index e260bcd071e4..21ced353310a 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -468,6 +468,24 @@ struct wait_page_async { struct wait_page_key key; }; =20 +static inline int kiocb_wait_page_async_init(struct kiocb *kiocb, + struct wait_page_async *wait, + wait_queue_func_t func, + void *data) +{ + if (kiocb->ki_filp->f_mode & FMODE_BUF_RASYNC) { + wait->wait.func =3D func; + wait->wait.private =3D data; + wait->wait.flags =3D 0; + INIT_LIST_HEAD(&wait->wait.entry); + kiocb->ki_flags |=3D IOCB_WAITQ; + kiocb->private =3D wait; + return 0; + } + + return -EOPNOTSUPP; +} + extern void __lock_page(struct page *page); extern int __lock_page_killable(struct page *page); extern int __lock_page_async(struct page *page, struct wait_page_async *= wait); --=20 2.26.2