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=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 CE220C6778A for ; Tue, 24 Jul 2018 03:28:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8E49B20875 for ; Tue, 24 Jul 2018 03:28:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8E49B20875 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xmission.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388460AbeGXEbx (ORCPT ); Tue, 24 Jul 2018 00:31:53 -0400 Received: from out02.mta.xmission.com ([166.70.13.232]:51373 "EHLO out02.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388149AbeGXEbw (ORCPT ); Tue, 24 Jul 2018 00:31:52 -0400 Received: from in01.mta.xmission.com ([166.70.13.51]) by out02.mta.xmission.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.87) (envelope-from ) id 1fhnz3-0007ic-Bz; Mon, 23 Jul 2018 21:27:33 -0600 Received: from [97.119.167.31] (helo=x220.int.ebiederm.org) by in01.mta.xmission.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.87) (envelope-from ) id 1fhnxW-0008AK-LM; Mon, 23 Jul 2018 21:25:59 -0600 From: "Eric W. Biederman" To: Linus Torvalds Cc: Oleg Nesterov , Andrew Morton , linux-kernel@vger.kernel.org, Wen Yang , majiang , "Eric W. Biederman" Date: Mon, 23 Jul 2018 22:24:13 -0500 Message-Id: <20180724032419.20231-14-ebiederm@xmission.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <87efft5ncd.fsf_-_@xmission.com> References: <87efft5ncd.fsf_-_@xmission.com> X-XM-SPF: eid=1fhnxW-0008AK-LM;;;mid=<20180724032419.20231-14-ebiederm@xmission.com>;;;hst=in01.mta.xmission.com;;;ip=97.119.167.31;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX19KDukiOfJbBuMvMD9YM8s+IzUojiCQLls= X-SA-Exim-Connect-IP: 97.119.167.31 X-SA-Exim-Mail-From: ebiederm@xmission.com Subject: [PATCH 14/20] signal: Push pid type down into __send_signal X-SA-Exim-Version: 4.2.1 (built Thu, 05 May 2016 13:38:54 -0600) X-SA-Exim-Scanned: Yes (on in01.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This information is already available in the callers and by pushing it down it makes the code a little clearer, and allows implementing better handling of signales set to a group of processes in fork. Signed-off-by: "Eric W. Biederman" --- kernel/signal.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/kernel/signal.c b/kernel/signal.c index 8decc70c1dc2..1ef94303d87a 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -998,7 +998,7 @@ static inline void userns_fixup_signal_uid(struct siginfo *info, struct task_str #endif static int __send_signal(int sig, struct siginfo *info, struct task_struct *t, - int group, int from_ancestor_ns) + enum pid_type type, int from_ancestor_ns) { struct sigpending *pending; struct sigqueue *q; @@ -1012,7 +1012,7 @@ static int __send_signal(int sig, struct siginfo *info, struct task_struct *t, from_ancestor_ns || (info == SEND_SIG_FORCED))) goto ret; - pending = group ? &t->signal->shared_pending : &t->pending; + pending = (type != PIDTYPE_PID) ? &t->signal->shared_pending : &t->pending; /* * Short-circuit ignored signals and support queuing * exactly one non-rt signal, so that we can get more @@ -1096,9 +1096,9 @@ static int __send_signal(int sig, struct siginfo *info, struct task_struct *t, out_set: signalfd_notify(t, sig); sigaddset(&pending->signal, sig); - complete_signal(sig, t, group); + complete_signal(sig, t, type != PIDTYPE_PID); ret: - trace_signal_generate(sig, info, t, group, result); + trace_signal_generate(sig, info, t, type != PIDTYPE_PID, result); return ret; } @@ -1112,7 +1112,7 @@ static int send_signal(int sig, struct siginfo *info, struct task_struct *t, !task_pid_nr_ns(current, task_active_pid_ns(t)); #endif - return __send_signal(sig, info, t, type != PIDTYPE_PID, from_ancestor_ns); + return __send_signal(sig, info, t, type, from_ancestor_ns); } static void print_fatal_signal(int signr) @@ -1377,7 +1377,7 @@ int kill_pid_info_as_cred(int sig, struct siginfo *info, struct pid *pid, if (sig) { if (lock_task_sighand(p, &flags)) { - ret = __send_signal(sig, info, p, 1, 0); + ret = __send_signal(sig, info, p, PIDTYPE_TGID, 0); unlock_task_sighand(p, &flags); } else ret = -ESRCH; -- 2.17.1