From patchwork Thu Sep 17 15:10:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Wilcox X-Patchwork-Id: 11782779 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 B3FB3112E for ; Thu, 17 Sep 2020 15:15:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8B3592087D for ; Thu, 17 Sep 2020 15:15:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Ab937xav" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728086AbgIQPP2 (ORCPT ); Thu, 17 Sep 2020 11:15:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37392 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727960AbgIQPLm (ORCPT ); Thu, 17 Sep 2020 11:11:42 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4FE7FC0612F2; Thu, 17 Sep 2020 08:10:57 -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=7bp7tBDREj0/quRwoGKFhcM4IA6X+ak+6znUWRbIy7w=; b=Ab937xavvtVmodPI2thUSGdAlk XIba4t3pVWHQS6GXPdgChNV++4m2pWszb+TrwGgDuHl9lLSuinZjp2hFDRXec+62BpUjm82laGwbh JN/W0bXPQaaE0Q5jmTXDfMNCxo+N33xx38Z5TH1Ekmq6LWsMu3AaAKlJNv2F36kXaJ1bzo4y69HPF L+XH8pTHAvL0tRdG4imOcEeu6JMtw6zPlA/0bm/X/VAPExraituJ0c+ceD9lLq4MB6OiwXHjnFLZM JeoXS++sD/pEEDMkBpD7WdUDOHe1HIUOdAEJpCDDg19BRjFTtuPDBSOja8O+dcKYbSjRiBIs5WHms Nj8/IOiw==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kIvYl-0001Qv-Jz; Thu, 17 Sep 2020 15:10:55 +0000 From: "Matthew Wilcox (Oracle)" To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , 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 Subject: [PATCH 13/13] vboxsf: Tell the VFS that readpage was synchronous Date: Thu, 17 Sep 2020 16:10:50 +0100 Message-Id: <20200917151050.5363-14-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 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org The vboxsf inline data readpage implementation was already synchronous, so use AOP_UPDATED_PAGE to avoid cycling the page lock. Signed-off-by: Matthew Wilcox (Oracle) --- fs/vboxsf/file.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/vboxsf/file.c b/fs/vboxsf/file.c index c4ab5996d97a..c2a144e5cb5a 100644 --- a/fs/vboxsf/file.c +++ b/fs/vboxsf/file.c @@ -228,6 +228,8 @@ static int vboxsf_readpage(struct file *file, struct page *page) } kunmap(page); + if (!err) + return AOP_UPDATED_PAGE; unlock_page(page); return err; }