From patchwork Wed Apr 25 15:47:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 10363813 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id CF04E6032C for ; Wed, 25 Apr 2018 16:20:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B7CEE28CD1 for ; Wed, 25 Apr 2018 16:20:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B2C7228D5A; Wed, 25 Apr 2018 16:20:27 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BDE3A28CD1 for ; Wed, 25 Apr 2018 16:20:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755316AbeDYQUA (ORCPT ); Wed, 25 Apr 2018 12:20:00 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:38174 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754909AbeDYPty (ORCPT ); Wed, 25 Apr 2018 11:49:54 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc: To:From:Sender:Reply-To: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=47ZfuL5pHrKUL/Pm65uqZBpqQ9GsTfh2btK82gzW52Q=; b=O6XKJ3IskoGm3v7sxOs4n9BBn h5k+Kd6AVKIRrr3F5nCBBnL+cq+fngwzCiNahCzvynE7XeEN+7T7fSVkhHTu1tCBS1Zj5XR78P98/ Z4GHpSvazgImraVUCql1M27CWGqIwoaocjmlhBHoZ4lQPp3rH+GH+0Ag/qOg2Mxm1E+3QfTZfK4ag HF7XZpmFSfE7az0wK45AaYkhBtQULt9kwDUg9//lIU4MOPJMol8r/hMLc7XRQw98Xa6AXzH+0aNmT 3AuyClwWH/DxwVG7YhytEZG43QDMnplkZ9O5mEuiUsNNXeZQFMupVcIjbX0XEg10E7Z/AZbIzYLzH IrEen1mPQ==; Received: from 089144200182.atnat0009.highway.a1.net ([89.144.200.182] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fBMfX-0001bI-AN; Wed, 25 Apr 2018 15:49:19 +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 10/40] =?UTF-8?q?ipv{4, 6}/raw:=20simplify=20=D1=95eq=5Ffil?= =?UTF-8?q?e=20code?= Date: Wed, 25 Apr 2018 17:47:57 +0200 Message-Id: <20180425154827.32251-11-hch@lst.de> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180425154827.32251-1-hch@lst.de> References: <20180425154827.32251-1-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-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Pass the hashtable to the proc private data instead of copying it into the per-file private data. Signed-off-by: Christoph Hellwig --- include/net/raw.h | 4 ---- net/ipv4/raw.c | 36 ++++++++++++------------------------ net/ipv6/raw.c | 6 ++++-- 3 files changed, 16 insertions(+), 30 deletions(-) diff --git a/include/net/raw.h b/include/net/raw.h index 99d26d0c4a19..9c9fa98a91a4 100644 --- a/include/net/raw.h +++ b/include/net/raw.h @@ -48,7 +48,6 @@ void raw_proc_exit(void); struct raw_iter_state { struct seq_net_private p; int bucket; - struct raw_hashinfo *h; }; static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq) @@ -58,9 +57,6 @@ static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq) void *raw_seq_start(struct seq_file *seq, loff_t *pos); void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos); void raw_seq_stop(struct seq_file *seq, void *v); -int raw_seq_open(struct inode *ino, struct file *file, - struct raw_hashinfo *h, const struct seq_operations *ops); - #endif int raw_hash_sk(struct sock *sk); diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 1b4d3355624a..ae57962b31e3 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -1003,11 +1003,12 @@ struct proto raw_prot = { static struct sock *raw_get_first(struct seq_file *seq) { struct sock *sk; + struct raw_hashinfo *h = PDE_DATA(file_inode(seq->file)); struct raw_iter_state *state = raw_seq_private(seq); for (state->bucket = 0; state->bucket < RAW_HTABLE_SIZE; ++state->bucket) { - sk_for_each(sk, &state->h->ht[state->bucket]) + sk_for_each(sk, &h->ht[state->bucket]) if (sock_net(sk) == seq_file_net(seq)) goto found; } @@ -1018,6 +1019,7 @@ static struct sock *raw_get_first(struct seq_file *seq) static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk) { + struct raw_hashinfo *h = PDE_DATA(file_inode(seq->file)); struct raw_iter_state *state = raw_seq_private(seq); do { @@ -1027,7 +1029,7 @@ static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk) } while (sk && sock_net(sk) != seq_file_net(seq)); if (!sk && ++state->bucket < RAW_HTABLE_SIZE) { - sk = sk_head(&state->h->ht[state->bucket]); + sk = sk_head(&h->ht[state->bucket]); goto try_again; } return sk; @@ -1045,9 +1047,9 @@ static struct sock *raw_get_idx(struct seq_file *seq, loff_t pos) void *raw_seq_start(struct seq_file *seq, loff_t *pos) { - struct raw_iter_state *state = raw_seq_private(seq); + struct raw_hashinfo *h = PDE_DATA(file_inode(seq->file)); - read_lock(&state->h->lock); + read_lock(&h->lock); return *pos ? raw_get_idx(seq, *pos - 1) : SEQ_START_TOKEN; } EXPORT_SYMBOL_GPL(raw_seq_start); @@ -1067,9 +1069,9 @@ EXPORT_SYMBOL_GPL(raw_seq_next); void raw_seq_stop(struct seq_file *seq, void *v) { - struct raw_iter_state *state = raw_seq_private(seq); + struct raw_hashinfo *h = PDE_DATA(file_inode(seq->file)); - read_unlock(&state->h->lock); + read_unlock(&h->lock); } EXPORT_SYMBOL_GPL(raw_seq_stop); @@ -1110,25 +1112,10 @@ static const struct seq_operations raw_seq_ops = { .show = raw_seq_show, }; -int raw_seq_open(struct inode *ino, struct file *file, - struct raw_hashinfo *h, const struct seq_operations *ops) -{ - int err; - struct raw_iter_state *i; - - err = seq_open_net(ino, file, ops, sizeof(struct raw_iter_state)); - if (err < 0) - return err; - - i = raw_seq_private((struct seq_file *)file->private_data); - i->h = h; - return 0; -} -EXPORT_SYMBOL_GPL(raw_seq_open); - static int raw_v4_seq_open(struct inode *inode, struct file *file) { - return raw_seq_open(inode, file, &raw_v4_hashinfo, &raw_seq_ops); + return seq_open_net(inode, file, &raw_seq_ops, + sizeof(struct raw_iter_state)); } static const struct file_operations raw_seq_fops = { @@ -1140,7 +1127,8 @@ static const struct file_operations raw_seq_fops = { static __net_init int raw_init_net(struct net *net) { - if (!proc_create("raw", 0444, net->proc_net, &raw_seq_fops)) + if (!proc_create_data("raw", 0444, net->proc_net, &raw_seq_fops, + &raw_v4_hashinfo)) return -ENOMEM; return 0; diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 5eb9b08947ed..dade69bf61e6 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -1306,7 +1306,8 @@ static const struct seq_operations raw6_seq_ops = { static int raw6_seq_open(struct inode *inode, struct file *file) { - return raw_seq_open(inode, file, &raw_v6_hashinfo, &raw6_seq_ops); + return seq_open_net(inode, file, &raw6_seq_ops, + sizeof(struct raw_iter_state)); } static const struct file_operations raw6_seq_fops = { @@ -1318,7 +1319,8 @@ static const struct file_operations raw6_seq_fops = { static int __net_init raw6_init_net(struct net *net) { - if (!proc_create("raw6", 0444, net->proc_net, &raw6_seq_fops)) + if (!proc_create_data("raw6", 0444, net->proc_net, &raw6_seq_fops, + &raw_v6_hashinfo)) return -ENOMEM; return 0;