From patchwork Fri May 8 15:36:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11536949 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 6A1FD14B4 for ; Fri, 8 May 2020 15:38:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4763821841 for ; Fri, 8 May 2020 15:38:01 +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="r/T2Qu4D" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728305AbgEHPhA (ORCPT ); Fri, 8 May 2020 11:37:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58434 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728264AbgEHPgy (ORCPT ); Fri, 8 May 2020 11:36:54 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87E19C061A0C; Fri, 8 May 2020 08:36:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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=Y6GByYBpY6pH5k9QcdAJgxxwyoCDdXaPGt39GnAtfcU=; b=r/T2Qu4Dq2EPB6e8g5rt10rdUS xxIMdT2OcwOzQanXgb4lV4q1HK2YMY6jUhqZw4kqLXgZCPDWdZw6jUGIRcchb87UWGNEuuzBouvX4 4YS6XQKp60nPAtzrXWUhDMdzUDn2lFo59J/30GXVF9vyt86zvxErfvhDIjdhWfDQu5QTV2MczwT2x fGalI5f7Wmy57824Eoy61rqGOadOiirp9dqXejOb+NK5CiWjdMnCeU4VkmDWFCec3wc6SAXB9cpOu qVjmdlypsglLL/MZUS2SpJ5wA9C0Z291fcC9yHzmdGJanj/2UhJ/FJKsXGQ6ggPMKfRpM8NzQ3VrW aO9USAMw==; Received: from [2001:4bb8:180:9d3f:90d7:9df8:7cd:3504] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jX53V-0004Cz-VR; Fri, 08 May 2020 15:36:54 +0000 From: Christoph Hellwig To: Alexander Viro Cc: linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org, kvm@vger.kernel.org, linux-fsdevel@vger.kernel.org, io-uring@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org Subject: [PATCH 06/12] eventpoll: use __anon_inode_getfd Date: Fri, 8 May 2020 17:36:28 +0200 Message-Id: <20200508153634.249933-7-hch@lst.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200508153634.249933-1-hch@lst.de> References: <20200508153634.249933-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Use __anon_inode_getfd instead of opencoding the logic using get_unused_fd_flags + anon_inode_getfile. Signed-off-by: Christoph Hellwig --- fs/eventpoll.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 8c596641a72b0..8abdb9fff611a 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -2055,23 +2055,14 @@ static int do_epoll_create(int flags) * Creates all the items needed to setup an eventpoll file. That is, * a file structure and a free file descriptor. */ - fd = get_unused_fd_flags(O_RDWR | (flags & O_CLOEXEC)); - if (fd < 0) { - error = fd; + fd = __anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep, + O_RDWR | (flags & O_CLOEXEC), &file); + if (fd < 0) goto out_free_ep; - } - file = anon_inode_getfile("[eventpoll]", &eventpoll_fops, ep, - O_RDWR | (flags & O_CLOEXEC)); - if (IS_ERR(file)) { - error = PTR_ERR(file); - goto out_free_fd; - } ep->file = file; fd_install(fd, file); return fd; -out_free_fd: - put_unused_fd(fd); out_free_ep: ep_free(ep); return error;