From patchwork Thu Jul 30 11:59:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kirill Tkhai X-Patchwork-Id: 11692835 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 D9AC2722 for ; Thu, 30 Jul 2020 11:59:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C8AC520838 for ; Thu, 30 Jul 2020 11:59:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727962AbgG3L7k (ORCPT ); Thu, 30 Jul 2020 07:59:40 -0400 Received: from relay.sw.ru ([185.231.240.75]:56444 "EHLO relay3.sw.ru" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727922AbgG3L7j (ORCPT ); Thu, 30 Jul 2020 07:59:39 -0400 Received: from [192.168.15.64] (helo=localhost.localdomain) by relay3.sw.ru with esmtp (Exim 4.93) (envelope-from ) id 1k17DW-0002vq-Ki; Thu, 30 Jul 2020 14:59:22 +0300 Subject: [PATCH 03/23] ipc: Use generic ns_common::count From: Kirill Tkhai To: viro@zeniv.linux.org.uk, adobriyan@gmail.com, davem@davemloft.net, ebiederm@xmission.com, akpm@linux-foundation.org, christian.brauner@ubuntu.com, areber@redhat.com, serge@hallyn.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, ktkhai@virtuozzo.com Date: Thu, 30 Jul 2020 14:59:36 +0300 Message-ID: <159611037654.535980.11569207616830163621.stgit@localhost.localdomain> In-Reply-To: <159611007271.535980.15362304262237658692.stgit@localhost.localdomain> References: <159611007271.535980.15362304262237658692.stgit@localhost.localdomain> User-Agent: StGit/0.19 MIME-Version: 1.0 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Convert uts namespace to use generic counter. Signed-off-by: Kirill Tkhai Acked-by: Christian Brauner --- include/linux/ipc_namespace.h | 3 +-- ipc/msgutil.c | 2 +- ipc/namespace.c | 4 ++-- 3 files changed, 4 insertions(+), 5 deletions(-) diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h index a06a78c67f19..05e22770af51 100644 --- a/include/linux/ipc_namespace.h +++ b/include/linux/ipc_namespace.h @@ -27,7 +27,6 @@ struct ipc_ids { }; struct ipc_namespace { - refcount_t count; struct ipc_ids ids[3]; int sem_ctls[4]; @@ -128,7 +127,7 @@ extern struct ipc_namespace *copy_ipcs(unsigned long flags, static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns) { if (ns) - refcount_inc(&ns->count); + refcount_inc(&ns->ns.count); return ns; } diff --git a/ipc/msgutil.c b/ipc/msgutil.c index 3149b4a379de..d0a0e877cadd 100644 --- a/ipc/msgutil.c +++ b/ipc/msgutil.c @@ -26,7 +26,7 @@ DEFINE_SPINLOCK(mq_lock); * and not CONFIG_IPC_NS. */ struct ipc_namespace init_ipc_ns = { - .count = REFCOUNT_INIT(1), + .ns.count = REFCOUNT_INIT(1), .user_ns = &init_user_ns, .ns.inum = PROC_IPC_INIT_INO, #ifdef CONFIG_IPC_NS diff --git a/ipc/namespace.c b/ipc/namespace.c index 24e7b45320f7..7bd0766ddc3b 100644 --- a/ipc/namespace.c +++ b/ipc/namespace.c @@ -51,7 +51,7 @@ static struct ipc_namespace *create_ipc_ns(struct user_namespace *user_ns, goto fail_free; ns->ns.ops = &ipcns_operations; - refcount_set(&ns->count, 1); + refcount_set(&ns->ns.count, 1); ns->user_ns = get_user_ns(user_ns); ns->ucounts = ucounts; @@ -164,7 +164,7 @@ static DECLARE_WORK(free_ipc_work, free_ipc); */ void put_ipc_ns(struct ipc_namespace *ns) { - if (refcount_dec_and_lock(&ns->count, &mq_lock)) { + if (refcount_dec_and_lock(&ns->ns.count, &mq_lock)) { mq_clear_sbinfo(ns); spin_unlock(&mq_lock);