From patchwork Fri Oct 16 16:04:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Wilcox X-Patchwork-Id: 11842069 Return-Path: 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 ADBC316BC for ; Fri, 16 Oct 2020 16:20:21 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 347AD2084C for ; Fri, 16 Oct 2020 16:20:20 +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="VKzvsqrA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 347AD2084C 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 F2D45940009; Fri, 16 Oct 2020 12:20:19 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id EB67C940007; Fri, 16 Oct 2020 12:20:19 -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 D5723940009; Fri, 16 Oct 2020 12:20:19 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0068.hostedemail.com [216.40.44.68]) by kanga.kvack.org (Postfix) with ESMTP id 3869D940007 for ; Fri, 16 Oct 2020 12:20:19 -0400 (EDT) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 092EF1EE6 for ; Fri, 16 Oct 2020 16:20:17 +0000 (UTC) X-FDA: 77378300874.16.day59_0f11b862721e Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin16.hostedemail.com (Postfix) with ESMTP id D51CD10226C1F for ; Fri, 16 Oct 2020 16:20:16 +0000 (UTC) X-Spam-Summary: 1,0,0,94c7b40e15e3f905,d41d8cd98f00b204,willy@infradead.org,,RULES_HIT:41:355:379:541:800:960:973:988:989:1260:1311:1314:1345:1359:1437:1515:1534:1539:1567:1711:1714:1730:1747:1777:1792:2393:2559:2562:3138:3139:3140:3141:3142:3865:3867:4321:5007:6120:6261:6653:7901:10004:11026:11473:11658:11914:12297:12438:12555:12679:12895:12986:13069:13161:13229:13311:13357:13894:14181:14384:14394:14721:21080:21451:21627:21990:30054,0,RBL:90.155.50.34:@infradead.org:.lbl8.mailshell.net-64.201.201.201 62.8.15.100;04yr89quqbiemx4nphoqpraj6oqf8optx7hyom3iyzb377kj81kbqizsxzjpbkb.tkcorajmukjfwbxyf8iqc8pbfy9fwmph37df773an5nj9b34gwgok1myi8poe16.c-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:25,LUA_SUMMARY:none X-HE-Tag: day59_0f11b862721e X-Filterd-Recvd-Size: 2236 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf30.hostedemail.com (Postfix) with ESMTP for ; Fri, 16 Oct 2020 16:20:14 +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=8Z59nl1ynYz7T8ZQQZFooEYzqOOLn6C4o6AlvTemzR0=; b=VKzvsqrAbJg0tQ9ROwsB31xWNf qgxaR8fKiaD1Wkm330KV7rVJway6sxpGg9dVl+3mcRIU5minylJtmi4maTxqaRPSujiVUMdTrAJ4l GfP9KVWBMVU+mbH2hZeCeI1XY7jSV0BxCQewFEY9Yce6fLX/Oi+UtM/P9qED3nv3n+34rMWn0dye2 SF1bqMapNAJf1XSzZ0iz9Qe0huNcFIk8MDeT7QlspqB+WOxSuO58c8CvcfZr5zfnw+kfg97ku9thn k8i4ct4Uscjp2Cp8hlpz4V3s0OxnweF+G48RAC2ipPEgFWrs5izVEhlZHgi1SLtsmmjAOYAESHvC5 e775gLhA==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kTSDo-0004tj-MX; Fri, 16 Oct 2020 16:04:48 +0000 From: "Matthew Wilcox (Oracle)" To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, Miklos Szeredi Subject: [PATCH v3 13/18] fuse: Tell the VFS that readpage was synchronous Date: Fri, 16 Oct 2020 17:04:38 +0100 Message-Id: <20201016160443.18685-14-willy@infradead.org> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20201016160443.18685-1-willy@infradead.org> References: <20201016160443.18685-1-willy@infradead.org> MIME-Version: 1.0 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: The fuse readpage implementation was already synchronous, so use AOP_UPDATED_PAGE to avoid cycling the page lock. Signed-off-by: Matthew Wilcox (Oracle) Acked-by: Miklos Szeredi --- fs/fuse/file.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 6611ef3269a8..7aa5626bc582 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -850,6 +850,8 @@ static int fuse_readpage(struct file *file, struct page *page) err = fuse_do_readpage(file, page); fuse_invalidate_atime(inode); + if (!err) + return AOP_UPDATED_PAGE; out: unlock_page(page); return err;