From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6619CC34026 for ; Tue, 18 Feb 2020 13:09:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4550E20801 for ; Tue, 18 Feb 2020 13:09:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726605AbgBRNJr (ORCPT ); Tue, 18 Feb 2020 08:09:47 -0500 Received: from 5.mo173.mail-out.ovh.net ([46.105.40.148]:42893 "EHLO 5.mo173.mail-out.ovh.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726340AbgBRNJq (ORCPT ); Tue, 18 Feb 2020 08:09:46 -0500 Received: from player779.ha.ovh.net (unknown [10.108.57.226]) by mo173.mail-out.ovh.net (Postfix) with ESMTP id B62E512FC0D for ; Tue, 18 Feb 2020 14:00:31 +0100 (CET) Received: from sk2.org (cre33-1_migr-88-122-126-116.fbx.proxad.net [88.122.126.116]) (Authenticated sender: steve@sk2.org) by player779.ha.ovh.net (Postfix) with ESMTPSA id 688AEF7773C0; Tue, 18 Feb 2020 13:00:19 +0000 (UTC) From: Stephen Kitt To: Jonathan Corbet , Mauro Carvalho Chehab , linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Stephen Kitt Subject: [PATCH v2 4/8] docs: add missing IPC documentation in sysctl/kernel.rst Date: Tue, 18 Feb 2020 13:59:19 +0100 Message-Id: <20200218125923.685-5-steve@sk2.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200218125923.685-1-steve@sk2.org> References: <20200218125923.685-1-steve@sk2.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Ovh-Tracer-Id: 16136115993363828101 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedugedrjeekgdegkecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufhtvghphhgvnhcumfhithhtuceoshhtvghvvgesshhkvddrohhrgheqnecukfhppedtrddtrddtrddtpdekkedruddvvddruddviedrudduieenucevlhhushhtvghrufhiiigvpedunecurfgrrhgrmhepmhhouggvpehsmhhtphdqohhuthdphhgvlhhopehplhgrhigvrhejjeelrdhhrgdrohhvhhdrnhgvthdpihhnvghtpedtrddtrddtrddtpdhmrghilhhfrhhomhepshhtvghvvgesshhkvddrohhrghdprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrgh Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds short descriptions of msgmax, msgmnb, msgmni, and shmmni, which were previously listed in kernel.rst but not described. Signed-off-by: Stephen Kitt --- Documentation/admin-guide/sysctl/kernel.rst | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst index d4fa06cab255..76ff10f6f63a 100644 --- a/Documentation/admin-guide/sysctl/kernel.rst +++ b/Documentation/admin-guide/sysctl/kernel.rst @@ -409,6 +409,15 @@ to false. Generally used with the `kexec_load_disabled`_ toggle. msgmax, msgmnb, and msgmni ========================== +``msgmax`` is the maximum size of an IPC message, in bytes. 8192 by +default (``MSGMAX``). + +``msgmnb`` is the maximum size of an IPC queue, in bytes. 16384 by +default (``MSGMNB``). + +``msgmni`` is the maximum number of IPC queues. 32000 by default +(``MSGMNI``). + msg_next_id, sem_next_id, and shm_next_id (System V IPC) ======================================================== @@ -957,6 +966,9 @@ kernel. This value defaults to ``SHMMAX``. shmmni ====== +This value determines the maximum number of shared memory segments. +4096 by default (``SHMMNI``). + shm_rmid_forced =============== -- 2.20.1