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=-15.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 81A67C433E2 for ; Thu, 17 Sep 2020 15:12:40 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 355A02137B for ; Thu, 17 Sep 2020 15:12:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="AKSFn7Ka"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="rBA3BEed" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 355A02137B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=HrgrRjGe+gL0WsKvw0zKm1s3ZPJpswLmG/3/N23n2RA=; b=AKSFn7KaUK09USuL2Y15qMW7a HZwonf9E6mgwZTpZ2Jus5s6zUPt2wX3MqfhQKBjMhs4Vs/BBi6oRWIOhlL4Y0mT/aGMe8OyCZabIg 2x9t3fa3RDHUIjPH4Fri46Q/JkIgs8/OEirQcAqpNm9Ny0XLq1Pomug0Y0ocoYBiYnLvzl69Tub0M f8owxWhsFs1m/YvwW1ARDmWifybrV+RYc7P+ReTIspM/Ds68MawOsJrMLYnsrTxayh9Wovau4i26x njZQ4O8vsH3mWR/+4ocC/rHnRItgm6NokQabQc+WrQm4RRGkf/QritzAjNyfYvv4qnpAGSV/1Bvjg cg6pd/OnA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kIvZN-0000SE-AR; Thu, 17 Sep 2020 15:11:33 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kIvYl-0008V7-Dg; Thu, 17 Sep 2020 15:10:55 +0000 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=5bMB1AIyFb3Uo5KQX9JPM+gHHI0JgEg44Zm96s2wWSw=; b=rBA3BEedGxTEi6jjWgdFgG9hWD rAtzju3sIMBKwrAld+mQATn7QaELiGbXVXmda93yYxh+yGS2+0GwA617L8+TIuo3Jk8ylfnIXk1LL H0TvouglbVTFDzhXbSrLLJR8GAx9F0XOhb7d7HXvbImpXSlYZ+WbfMfJ7KLJgKaDDRuyCUS26Oz12 KxWnZX+HUeYpcjcOv6pJRJj8WdPq//IKqqm0bFb6zeal4AaAU3BZ/IPEj68NH4x1qS98+Qp9MtRPu cADf27TdVH4fZZTEQTThue/nS5onCBKmS8Q73H+9r1P8RaGh4WeCO+yzsvRmbQR5olV5anJvC0EkL rdhWhOtg==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kIvYk-0001QE-67; Thu, 17 Sep 2020 15:10:54 +0000 From: "Matthew Wilcox (Oracle)" To: linux-fsdevel@vger.kernel.org Subject: [PATCH 09/13] hostfs: Tell the VFS that readpage was synchronous Date: Thu, 17 Sep 2020 16:10:46 +0100 Message-Id: <20200917151050.5363-10-willy@infradead.org> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20200917151050.5363-1-willy@infradead.org> References: <20200917151050.5363-1-willy@infradead.org> MIME-Version: 1.0 X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-cifs@vger.kernel.org, Richard Weinberger , ecryptfs@vger.kernel.org, linux-um@lists.infradead.org, linux-kernel@vger.kernel.org, "Matthew Wilcox \(Oracle\)" , linux-mm@kvack.org, linux-mtd@lists.infradead.org, v9fs-developer@lists.sourceforge.net, ceph-devel@vger.kernel.org, linux-afs@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org The hostfs readpage implementation was already synchronous, so use AOP_UPDATED_PAGE to avoid cycling the page lock. Signed-off-by: Matthew Wilcox (Oracle) --- fs/hostfs/hostfs_kern.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index c070c0d8e3e9..c49221c09c4b 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -455,6 +455,8 @@ static int hostfs_readpage(struct file *file, struct page *page) out: flush_dcache_page(page); kunmap(page); + if (!ret) + return AOP_UPDATED_PAGE; unlock_page(page); return ret; } -- 2.28.0 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/