From patchwork Tue Jun 23 21:53:29 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Eric W. Biederman" X-Patchwork-Id: 11621869 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 E550390 for ; Tue, 23 Jun 2020 21:57:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D6ACA2098B for ; Tue, 23 Jun 2020 21:57:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387872AbgFWV5z (ORCPT ); Tue, 23 Jun 2020 17:57:55 -0400 Received: from out02.mta.xmission.com ([166.70.13.232]:57396 "EHLO out02.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387455AbgFWV5y (ORCPT ); Tue, 23 Jun 2020 17:57:54 -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 4.90_1) (envelope-from ) id 1jnqvR-0004Kz-EY; Tue, 23 Jun 2020 15:57:53 -0600 Received: from ip68-227-160-95.om.om.cox.net ([68.227.160.95] helo=x220.xmission.com) by in01.mta.xmission.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.87) (envelope-from ) id 1jnqvQ-00039X-No; Tue, 23 Jun 2020 15:57:53 -0600 From: ebiederm@xmission.com (Eric W. Biederman) To: Cc: , Linus Torvalds , Oleg Nesterov , Jann Horn , Kees Cook , Bernd Edlinger References: <87pn9u6h8c.fsf@x220.int.ebiederm.org> <87r1u5laac.fsf@x220.int.ebiederm.org> Date: Tue, 23 Jun 2020 16:53:29 -0500 In-Reply-To: <87r1u5laac.fsf@x220.int.ebiederm.org> (Eric W. Biederman's message of "Tue, 23 Jun 2020 16:52:43 -0500") Message-ID: <87lfkdla92.fsf_-_@x220.int.ebiederm.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 X-XM-SPF: eid=1jnqvQ-00039X-No;;;mid=<87lfkdla92.fsf_-_@x220.int.ebiederm.org>;;;hst=in01.mta.xmission.com;;;ip=68.227.160.95;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX1/1/vL+ah4gMSG5g2qvGjMYB9/S+zDHo+I= X-SA-Exim-Connect-IP: 68.227.160.95 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on sa08.xmission.com X-Spam-Level: X-Spam-Status: No, score=-0.2 required=8.0 tests=ALL_TRUSTED,BAYES_50, DCC_CHECK_NEGATIVE,T_TooManySym_01 autolearn=disabled version=3.4.2 X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.8 BAYES_50 BODY: Bayes spam probability is 40 to 60% * [score: 0.5000] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa08 0; Body=1 Fuz1=1 Fuz2=1] * 0.0 T_TooManySym_01 4+ unique symbols in subject X-Spam-DCC: ; sa08 0; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: ; X-Spam-Relay-Country: X-Spam-Timing: total 327 ms - load_scoreonly_sql: 0.03 (0.0%), signal_user_changed: 11 (3.3%), b_tie_ro: 9 (2.9%), parse: 0.71 (0.2%), extract_message_metadata: 9 (2.7%), get_uri_detail_list: 0.84 (0.3%), tests_pri_-1000: 12 (3.6%), tests_pri_-950: 1.28 (0.4%), tests_pri_-900: 1.09 (0.3%), tests_pri_-90: 110 (33.8%), check_bayes: 109 (33.2%), b_tokenize: 4.8 (1.5%), b_tok_get_all: 6 (1.8%), b_comp_prob: 1.58 (0.5%), b_tok_touch_all: 92 (28.2%), b_finish: 1.15 (0.4%), tests_pri_0: 171 (52.2%), check_dkim_signature: 0.70 (0.2%), check_dkim_adsp: 2.7 (0.8%), poll_dns_idle: 1.20 (0.4%), tests_pri_10: 2.2 (0.7%), tests_pri_500: 7 (2.0%), rewrite_mail: 0.00 (0.0%) Subject: [PATCH v2 1/6] signal: Pretty up the SIGNAL_GROUP_FLAGS X-Spam-Flag: No 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-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Renumber the flags that go in sig->flags giving different groups of flags different hex digits. This is needed so that future additions of flags can be adjacent. Signed-off-by: "Eric W. Biederman" --- include/linux/sched/signal.h | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h index 0ee5e696c5d8..b4f36a11be5e 100644 --- a/include/linux/sched/signal.h +++ b/include/linux/sched/signal.h @@ -241,20 +241,22 @@ struct signal_struct { */ #define SIGNAL_STOP_STOPPED 0x00000001 /* job control stop in effect */ #define SIGNAL_STOP_CONTINUED 0x00000002 /* SIGCONT since WCONTINUED reap */ -#define SIGNAL_GROUP_EXIT 0x00000004 /* group exit in progress */ -#define SIGNAL_GROUP_COREDUMP 0x00000008 /* coredump in progress */ -/* - * Pending notifications to parent. - */ + +/* Pending notifications to parent. */ #define SIGNAL_CLD_STOPPED 0x00000010 #define SIGNAL_CLD_CONTINUED 0x00000020 #define SIGNAL_CLD_MASK (SIGNAL_CLD_STOPPED|SIGNAL_CLD_CONTINUED) -#define SIGNAL_UNKILLABLE 0x00000040 /* for init: ignore fatal signals */ - #define SIGNAL_STOP_MASK (SIGNAL_CLD_MASK | SIGNAL_STOP_STOPPED | \ SIGNAL_STOP_CONTINUED) +/* Signal group actions. */ +#define SIGNAL_GROUP_EXIT 0x00000100 /* group exit in progress */ +#define SIGNAL_GROUP_COREDUMP 0x00000200 /* coredump in progress */ + +/* Flags applicable to the entire signal group. */ +#define SIGNAL_UNKILLABLE 0x00001000 /* for init: ignore fatal signals */ + static inline void signal_set_stop_flags(struct signal_struct *sig, unsigned int flags) {