From patchwork Wed May 16 09:43:07 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 914526 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-ext4-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=infradead.org header.i=@infradead.org header.b="tKTEZdr6"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40m9XC5qgKz9s0y for ; Wed, 16 May 2018 20:24:11 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752555AbeEPJo2 (ORCPT ); Wed, 16 May 2018 05:44:28 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:46832 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752146AbeEPJoV (ORCPT ); Wed, 16 May 2018 05:44:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=NZBW1H72V2c/p4qyw4Wdwy8vv4RPz+1gUGeReSzQoic=; b=tKTEZdr6X1H1Pqp2b1Q2BhM+W IQtRr3ucoa2dzjX5euSBOwMZAwSeDVaxLYsPINIhezXvKp7TPPsi3EWxg88GLO/9oYzz8Ymtf8QG4 lkuh4bgtzFQ0/7HR6faBG2s45N7tTpne8cmwdbtGAbm+ni7Nlugr2bbRQcbL5eHlPypz/GaTWsfsQ ha9GXORQsQzFopWFP1B4S5Bvp2ZWhV8WVBbgSXJJENBT2Aic1YzFTpb7SszpG/sGhunBM6lGO/ZcV 535TXxVxiJsx1bEhRLPOOAjwTnsAEG8GU5Ofg3REDGurqwIMa/EwFHUw+I0C2GCCWEEdCBxTjB/vx h274p3b0w==; Received: from 089144199016.atnat0008.highway.a1.net ([89.144.199.16] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fIsyX-0004uG-SI; Wed, 16 May 2018 09:44:02 +0000 From: Christoph Hellwig To: Andrew Morton , Alexander Viro Cc: Alexey Dobriyan , Greg Kroah-Hartman , Jiri Slaby , Alessandro Zummo , Alexandre Belloni , linux-acpi@vger.kernel.org, drbd-dev@lists.linbit.com, linux-ide@vger.kernel.org, netdev@vger.kernel.org, linux-rtc@vger.kernel.org, megaraidlinux.pdl@broadcom.com, linux-scsi@vger.kernel.org, devel@driverdev.osuosl.org, linux-afs@lists.infradead.org, linux-ext4@vger.kernel.org, jfs-discussion@lists.sourceforge.net, netfilter-devel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 03/42] proc: don't detour through seq->private to get the inode Date: Wed, 16 May 2018 11:43:07 +0200 Message-Id: <20180516094346.20506-4-hch@lst.de> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180516094346.20506-1-hch@lst.de> References: <20180516094346.20506-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Signed-off-by: Christoph Hellwig --- fs/proc/array.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) diff --git a/fs/proc/array.c b/fs/proc/array.c index 911f66924d81..4a8e413bf59b 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -677,20 +677,22 @@ get_children_pid(struct inode *inode, struct pid *pid_prev, loff_t pos) static int children_seq_show(struct seq_file *seq, void *v) { - seq_printf(seq, "%d ", pid_nr_ns(v, proc_pid_ns(seq->private))); + struct inode *inode = file_inode(seq->file); + + seq_printf(seq, "%d ", pid_nr_ns(v, proc_pid_ns(inode))); return 0; } static void *children_seq_start(struct seq_file *seq, loff_t *pos) { - return get_children_pid(seq->private, NULL, *pos); + return get_children_pid(file_inode(seq->file), NULL, *pos); } static void *children_seq_next(struct seq_file *seq, void *v, loff_t *pos) { struct pid *pid; - pid = get_children_pid(seq->private, v, *pos + 1); + pid = get_children_pid(file_inode(seq->file), v, *pos + 1); put_pid(v); ++*pos; @@ -711,17 +713,7 @@ static const struct seq_operations children_seq_ops = { static int children_seq_open(struct inode *inode, struct file *file) { - struct seq_file *m; - int ret; - - ret = seq_open(file, &children_seq_ops); - if (ret) - return ret; - - m = file->private_data; - m->private = inode; - - return ret; + return seq_open(file, &children_seq_ops); } const struct file_operations proc_tid_children_operations = {