Message ID | 20201009143104.22673-4-willy@infradead.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=0lZN=DQ=kvack.org=owner-linux-mm@kernel.org> Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3B003109B for <patchwork-linux-mm@patchwork.kernel.org>; Fri, 9 Oct 2020 14:31:14 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 946AC2225D for <patchwork-linux-mm@patchwork.kernel.org>; Fri, 9 Oct 2020 14:31:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="geZDyx9z" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 946AC2225D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6E8C56B0072; Fri, 9 Oct 2020 10:31:12 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 6A4A86B0074; Fri, 9 Oct 2020 10:31:12 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 55F626B0073; Fri, 9 Oct 2020 10:31:12 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0009.hostedemail.com [216.40.44.9]) by kanga.kvack.org (Postfix) with ESMTP id 235776B0070 for <linux-mm@kvack.org>; Fri, 9 Oct 2020 10:31:12 -0400 (EDT) Received: from smtpin15.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id B9983362B for <linux-mm@kvack.org>; Fri, 9 Oct 2020 14:31:11 +0000 (UTC) X-FDA: 77352624342.15.peace50_0715178271e1 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin15.hostedemail.com (Postfix) with ESMTP id 96D8D1814B0C8 for <linux-mm@kvack.org>; Fri, 9 Oct 2020 14:31:11 +0000 (UTC) X-Spam-Summary: 1,0,0,ed3958feff23fc84,d41d8cd98f00b204,willy@infradead.org,,RULES_HIT:41:355:379:541:800:960:973:988:989:1260:1311:1314:1345:1359:1431:1437:1515:1534:1540:1711:1730:1747:1777:1792:2393:2559:2562:3138:3139:3140:3141:3142:3352:3865:3867:4321:5007:6120:6261:6653:6742:7901:8957:10004:11026:11473:11658:11914:12043:12296:12297:12438:12555:12679:12895:13069:13161:13229:13311:13357:13894:14096:14181:14384:14394:14721:21080:21451:21627:21990:30054,0,RBL:90.155.50.34:@infradead.org:.lbl8.mailshell.net-62.8.15.100 64.201.201.201;04yri7ns33u1xnm6eejrqddpzy6inycwmuwnricegqwjrzqu6p691md8jr9zzqq.9tmgn7dcot65b4gbytyw7uwdoqnirdx3n1e6s5yqrijsot3rhr4i99httcrtncp.h-lbl8.mailshell.net-223.238.255.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fn,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:24,LUA_SUMMARY:none X-HE-Tag: peace50_0715178271e1 X-Filterd-Recvd-Size: 2931 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf43.hostedemail.com (Postfix) with ESMTP for <linux-mm@kvack.org>; Fri, 9 Oct 2020 14:31:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=HQZhweg8a+1Qpo+qFNQoqVI2WIjKy37atq+XWcCiXOA=; b=geZDyx9zxwDAZMT1kXigMN/NeL y6/HNpoOVZM17yr4WSs7XuzAzLshwq8rV9NK+/vsXt6jsWTQxWhH+vHhc4/DVRZcalbVZPc8Yy/NL f52u9USjrpHt2Vdpc+Q0yu7uJPyz8uUxtZPaio2gMRZcZuowPskJmHiL6fAeHi6Ajcfh9e9cwrHSI TmB+0AFd9Z/t0TIdJXWLWd91z7Pp6JIf5hnIB/SWa+Yy6dCtUU2PL/k26ExALlqokhxxVICHxEv59 UQBenExGSJ+MvxSnlfXVcMDO3ia2WBU5dNBvo9LboGyaLuY3yZn4ZfDYK8obdEN6KwtUtXt74EgUi H+Jfrfig==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kQtQI-0005ub-VP; Fri, 09 Oct 2020 14:31:07 +0000 From: "Matthew Wilcox (Oracle)" <willy@infradead.org> To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>, linux-mm@kvack.org, v9fs-developer@lists.sourceforge.net, linux-kernel@vger.kernel.org, linux-afs@lists.infradead.org, ceph-devel@vger.kernel.org, linux-cifs@vger.kernel.org, ecryptfs@vger.kernel.org, linux-um@lists.infradead.org, linux-mtd@lists.infradead.org, Richard Weinberger <richard@nod.at>, linux-xfs@vger.kernel.org, Dominique Martinet <asmadeus@codewreck.org> Subject: [PATCH v2 03/16] 9p: Tell the VFS that readpage was synchronous Date: Fri, 9 Oct 2020 15:30:51 +0100 Message-Id: <20201009143104.22673-4-willy@infradead.org> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20201009143104.22673-1-willy@infradead.org> References: <20201009143104.22673-1-willy@infradead.org> 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: <linux-mm.kvack.org> |
Series |
Allow readpage to return a locked page
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expand
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diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c index cce9ace651a2..506ca0ba2ec7 100644 --- a/fs/9p/vfs_addr.c +++ b/fs/9p/vfs_addr.c @@ -65,7 +65,7 @@ static int v9fs_fid_readpage(void *data, struct page *page) SetPageUptodate(page); v9fs_readpage_to_fscache(inode, page); - retval = 0; + return AOP_UPDATED_PAGE; done: unlock_page(page); @@ -280,6 +280,10 @@ static int v9fs_write_begin(struct file *filp, struct address_space *mapping, goto out; retval = v9fs_fid_readpage(v9inode->writeback_fid, page); + if (retval == AOP_UPDATED_PAGE) { + retval = 0; + goto out; + } put_page(page); if (!retval) goto start;