From patchwork Thu Apr 19 12:41:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 900906 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@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=netdev-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="sXPXJr/Q"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40Rf236gf1z9s1X for ; Thu, 19 Apr 2018 22:49:15 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753241AbeDSMtL (ORCPT ); Thu, 19 Apr 2018 08:49:11 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:40244 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753463AbeDSMnz (ORCPT ); Thu, 19 Apr 2018 08:43:55 -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=IG61pFy4GkP3GnA8qp8UiJ1fXufhht5pH9kvurAP8uA=; b=sXPXJr/Q2WmMLA5s8mDLMzevr nrJFL+4wjZPF/qQPQDOTkSq6avb/DxnqZLresLRL1W0+kdMotJk5wmxYXtofiYxHcoYtaM0yt43gK //ngSvg0ZKajv/zlcfUEEadU3Q4lSqOzyYQvg+FF/0aNBwXn0b//DfTxNedOH8CKgAHjFPrwHtVAd nG+5QUCZk1jannOqIn6uzRF9fvKBI3CLZLVFSg9C4AvDLerk1RRQali/JjvUEh2LqEOpZ/as5NfjU IsuFKKS6w8h5z0bBSTANOEGMhvO/vadgaX0bngFhgFWpcO6dQeP2hC9b+LGfMcXs88gzQ+0oQxwCb 3qZZPnAWg==; Received: from static-242-42-24-46.ipcom.comunitel.net ([46.24.42.242] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1f98uO-0004BL-UQ; Thu, 19 Apr 2018 12:43:29 +0000 From: Christoph Hellwig To: Andrew Morton , Alexander Viro Cc: Alexey Dobriyan , Greg Kroah-Hartman , Jiri Slaby , Corey Minyard , 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 32/39] bluetooth: switch to proc_create_seq_data Date: Thu, 19 Apr 2018 14:41:33 +0200 Message-Id: <20180419124140.9309-33-hch@lst.de> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180419124140.9309-1-hch@lst.de> References: <20180419124140.9309-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org And use proc private data directly instead of doing a detour through seq->private and private state. Signed-off-by: Christoph Hellwig --- net/bluetooth/af_bluetooth.c | 40 +++++------------------------------- 1 file changed, 5 insertions(+), 35 deletions(-) diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index 84d92a077834..3264e1873219 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -605,15 +605,10 @@ int bt_sock_wait_ready(struct sock *sk, unsigned long flags) EXPORT_SYMBOL(bt_sock_wait_ready); #ifdef CONFIG_PROC_FS -struct bt_seq_state { - struct bt_sock_list *l; -}; - static void *bt_seq_start(struct seq_file *seq, loff_t *pos) __acquires(seq->private->l->lock) { - struct bt_seq_state *s = seq->private; - struct bt_sock_list *l = s->l; + struct bt_sock_list *l = PDE_DATA(file_inode(seq->file)); read_lock(&l->lock); return seq_hlist_start_head(&l->head, *pos); @@ -621,8 +616,7 @@ static void *bt_seq_start(struct seq_file *seq, loff_t *pos) static void *bt_seq_next(struct seq_file *seq, void *v, loff_t *pos) { - struct bt_seq_state *s = seq->private; - struct bt_sock_list *l = s->l; + struct bt_sock_list *l = PDE_DATA(file_inode(seq->file)); return seq_hlist_next(v, &l->head, pos); } @@ -630,16 +624,14 @@ static void *bt_seq_next(struct seq_file *seq, void *v, loff_t *pos) static void bt_seq_stop(struct seq_file *seq, void *v) __releases(seq->private->l->lock) { - struct bt_seq_state *s = seq->private; - struct bt_sock_list *l = s->l; + struct bt_sock_list *l = PDE_DATA(file_inode(seq->file)); read_unlock(&l->lock); } static int bt_seq_show(struct seq_file *seq, void *v) { - struct bt_seq_state *s = seq->private; - struct bt_sock_list *l = s->l; + struct bt_sock_list *l = PDE_DATA(file_inode(seq->file)); if (v == SEQ_START_TOKEN) { seq_puts(seq ,"sk RefCnt Rmem Wmem User Inode Parent"); @@ -681,35 +673,13 @@ static const struct seq_operations bt_seq_ops = { .show = bt_seq_show, }; -static int bt_seq_open(struct inode *inode, struct file *file) -{ - struct bt_sock_list *sk_list; - struct bt_seq_state *s; - - sk_list = PDE_DATA(inode); - s = __seq_open_private(file, &bt_seq_ops, - sizeof(struct bt_seq_state)); - if (!s) - return -ENOMEM; - - s->l = sk_list; - return 0; -} - -static const struct file_operations bt_fops = { - .open = bt_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release_private -}; - int bt_procfs_init(struct net *net, const char *name, struct bt_sock_list *sk_list, int (* seq_show)(struct seq_file *, void *)) { sk_list->custom_seq_show = seq_show; - if (!proc_create_data(name, 0, net->proc_net, &bt_fops, sk_list)) + if (!proc_create_seq_data(name, 0, net->proc_net, &bt_seq_ops, sk_list)) return -ENOMEM; return 0; }