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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 7C7ABC4363D for ; Fri, 16 Oct 2020 16:05:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 272F421775 for ; Fri, 16 Oct 2020 16:05:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="lzjKWulL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2410592AbgJPQFF (ORCPT ); Fri, 16 Oct 2020 12:05:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2410564AbgJPQEt (ORCPT ); Fri, 16 Oct 2020 12:04:49 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19A51C0613D4; Fri, 16 Oct 2020 09:04:49 -0700 (PDT) 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=jmv1iA6ONHdhBCtewTigT8o0CWZcxoZXOX5KqmVgnTU=; b=lzjKWulLpFYNA4pbkUUZfQIdxX m3a2Hxp01cudH9ksgJVuUgaKx6tetfi7GLekkQwC/jQBg02Wtj6lX4FUy222YUx2NyioE++RCtnXI 7o4m9SHp1O4k9EmeJqjhFabarRc1sVTDFRlu7C3BG1SYEAoVRZSPAnZHDXYX8HbKxbWyT40lnn0Ju XgKdxGfrfvfeV6m9P99ycICS693RVAdkBSWjJVgfZw9NtODmHDgQzSvhTxKmmWMUidOUlloFg3Bfd z3w3s4pcSEEpypJkw5ct+oWM7RG7//svzkszYQgJ8CtxyaxT0HrRYjWU9Qw9rQk1Vu9FQ7UFCIVBN NGsJmxvw==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kTSDn-0004tE-IG; Fri, 16 Oct 2020 16:04:47 +0000 From: "Matthew Wilcox (Oracle)" To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, Tyler Hicks , ecryptfs@vger.kernel.org Subject: [PATCH v3 10/18] ecryptfs: Tell the VFS that readpage was synchronous Date: Fri, 16 Oct 2020 17:04:35 +0100 Message-Id: <20201016160443.18685-11-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 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org The ecryptfs readpage implementation was already synchronous, so use AOP_UPDATED_PAGE to avoid cycling the page lock. Signed-off-by: Matthew Wilcox (Oracle) --- fs/ecryptfs/mmap.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c index 019572c6b39a..dee35181d789 100644 --- a/fs/ecryptfs/mmap.c +++ b/fs/ecryptfs/mmap.c @@ -219,12 +219,13 @@ static int ecryptfs_readpage(struct file *file, struct page *page) } } out: - if (rc) - ClearPageUptodate(page); - else - SetPageUptodate(page); - ecryptfs_printk(KERN_DEBUG, "Unlocking page with index = [0x%.16lx]\n", + ecryptfs_printk(KERN_DEBUG, "Returning page with index = [0x%.16lx]\n", page->index); + if (!rc) { + SetPageUptodate(page); + return AOP_UPDATED_PAGE; + } + ClearPageUptodate(page); unlock_page(page); return rc; } -- 2.28.0