From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752848AbeDBQOe (ORCPT ); Mon, 2 Apr 2018 12:14:34 -0400 Received: from mx2.suse.de ([195.135.220.15]:53951 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752105AbeDBQOb (ORCPT ); Mon, 2 Apr 2018 12:14:31 -0400 Date: Mon, 2 Apr 2018 16:14:29 +0000 From: "Luis R. Rodriguez" To: Dominik Brodowski Cc: linux-kernel@vger.kernel.org, viro@ZenIV.linux.org.uk, torvalds@linux-foundation.org, arnd@arndb.de, linux-arch@vger.kernel.org, "Luis R . Rodriguez" , Andrew Morton Subject: Re: [PATCH 002/109] kernel: use kernel_wait4() instead of sys_wait4() Message-ID: <20180402161429.GS30543@wotan.suse.de> References: <20180329112426.23043-1-linux@dominikbrodowski.net> <20180329112426.23043-3-linux@dominikbrodowski.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180329112426.23043-3-linux@dominikbrodowski.net> User-Agent: Mutt/1.6.0 (2016-04-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Mar 29, 2018 at 01:22:39PM +0200, Dominik Brodowski wrote: > All call sites of sys_wait4() set *rusage to NULL. Therefore, there is > no need for the copy_to_user() handling of *rusage, and we can use > kernel_wait4() directly. > > This patch is part of a series which removes in-kernel calls to syscalls. > On this basis, the syscall entry path can be streamlined. For details, see > http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net > > Cc: Luis R. Rodriguez > Cc: Al Viro > Cc: Andrew Morton > Signed-off-by: Dominik Brodowski Acked-by: Luis R. Rodriguez Luis