From patchwork Tue Apr 16 17:53:28 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Al Viro X-Patchwork-Id: 10903641 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D2E34161F for ; Tue, 16 Apr 2019 17:56:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BB42328358 for ; Tue, 16 Apr 2019 17:56:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AFD8A287AD; Tue, 16 Apr 2019 17:56:06 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham 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 51E3D28358 for ; Tue, 16 Apr 2019 17:56:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730549AbfDPRzu (ORCPT ); Tue, 16 Apr 2019 13:55:50 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:57682 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730338AbfDPRxt (ORCPT ); Tue, 16 Apr 2019 13:53:49 -0400 Received: from viro by ZenIV.linux.org.uk with local (Exim 4.92 #3 (Red Hat Linux)) id 1hGSHD-0005ZT-KW; Tue, 16 Apr 2019 17:53:47 +0000 From: Al Viro To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [RFC PATCH 50/62] afs: switch to use of ->free_inode() Date: Tue, 16 Apr 2019 18:53:28 +0100 Message-Id: <20190416175340.21068-50-viro@ZenIV.linux.org.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190416175340.21068-1-viro@ZenIV.linux.org.uk> References: <20190416174900.GT2217@ZenIV.linux.org.uk> <20190416175340.21068-1-viro@ZenIV.linux.org.uk> MIME-Version: 1.0 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Al Viro debugging printks left in ->destroy_inode() and so's the update of inode count; we could take the latter to RCU-delayed part (would take only moving the check on module exit past rcu_barrier() there), but debugging output ought to either stay where it is or go into ->evict_inode() Signed-off-by: Al Viro --- fs/afs/super.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/fs/afs/super.c b/fs/afs/super.c index 5adf012b8e27..bab89763119b 100644 --- a/fs/afs/super.c +++ b/fs/afs/super.c @@ -33,6 +33,7 @@ static void afs_i_init_once(void *foo); static void afs_kill_super(struct super_block *sb); static struct inode *afs_alloc_inode(struct super_block *sb); static void afs_destroy_inode(struct inode *inode); +static void afs_free_inode(struct inode *inode); static int afs_statfs(struct dentry *dentry, struct kstatfs *buf); static int afs_show_devname(struct seq_file *m, struct dentry *root); static int afs_show_options(struct seq_file *m, struct dentry *root); @@ -56,6 +57,7 @@ static const struct super_operations afs_super_ops = { .alloc_inode = afs_alloc_inode, .drop_inode = afs_drop_inode, .destroy_inode = afs_destroy_inode, + .free_inode = afs_free_inode, .evict_inode = afs_evict_inode, .show_devname = afs_show_devname, .show_options = afs_show_options, @@ -660,11 +662,9 @@ static struct inode *afs_alloc_inode(struct super_block *sb) return &vnode->vfs_inode; } -static void afs_i_callback(struct rcu_head *head) +static void afs_free_inode(struct inode *inode) { - struct inode *inode = container_of(head, struct inode, i_rcu); - struct afs_vnode *vnode = AFS_FS_I(inode); - kmem_cache_free(afs_inode_cachep, vnode); + kmem_cache_free(afs_inode_cachep, AFS_FS_I(inode)); } /* @@ -680,7 +680,6 @@ static void afs_destroy_inode(struct inode *inode) ASSERTCMP(vnode->cb_interest, ==, NULL); - call_rcu(&inode->i_rcu, afs_i_callback); atomic_dec(&afs_count_active_inodes); }