From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932326Ab1CWKGP (ORCPT ); Wed, 23 Mar 2011 06:06:15 -0400 Received: from mail-fx0-f46.google.com ([209.85.161.46]:65002 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755865Ab1CWKGO (ORCPT ); Wed, 23 Mar 2011 06:06:14 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:from:to:cc:subject:date:message-id:x-mailer; b=fsttN+8DFmO+nutCanh+SsX2Y5jybiKi4Rl2pp/6wRIkReT7VVjJw4onv9wY3/5QnY B7azLL3wawcmCoEz77x+Ia7Jf7ghjpDklkA6UmDLYABvDBS8Q5TUKaCq1junNTQ0YB9k zYDRlzbziwLxJ3kWTx7Slo/GhhSN7mMeYvMwE= From: Tejun Heo To: oleg@redhat.com, jan.kratochvil@redhat.com, vda.linux@googlemail.com Cc: linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, indan@nul.nu, roland@hack.frob.com Subject: [PATCHSET] ptrace,signal: Improve ptrace and job control interaction Date: Wed, 23 Mar 2011 11:05:46 +0100 Message-Id: <1300874766-12941-1-git-send-email-tj@kernel.org> X-Mailer: git-send-email 1.7.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, This is repost of the following two pending patchsets. [1] group stop / ptrace updates, take#2 [2] ptrace,signal: Fix notifications to the real parent while ptraced Combined these patches implement "P1. Always TASK_TRACED while ptraced", "P2. Fix notifications to the real parent" and "P3. Keep ptrace resume separate from and beneath jctl stop" of the ptrace job control improvements proposal[3]. All patches have been reviewed and acked by Oleg and this will be the last repost of these patches. They're being committed to a stable git tree (will eventually be managed by Oleg) and will be pulled into linux-next once -rc1 is released. 0001-signal-Fix-SIGCONT-notification-code.patch 0002-ptrace-Remove-the-extra-wake_up_state-from-ptrace_de.patch 0003-signal-Remove-superflous-try_to_freeze-loop-in-do_si.patch 0004-ptrace-Kill-tracehook_notify_jctl.patch 0005-ptrace-Add-why-to-ptrace_stop.patch 0006-signal-Fix-premature-completion-of-group-stop-when-i.patch 0007-signal-Use-GROUP_STOP_PENDING-to-stop-once-for-a-sin.patch 0008-ptrace-Participate-in-group-stop-from-ptrace_stop-if.patch 0009-ptrace-Make-do_signal_stop-use-ptrace_stop-if-the-ta.patch 0010-ptrace-Clean-transitions-between-TASK_STOPPED-and-TR.patch 0011-ptrace-Collapse-ptrace_untrace-into-__ptrace_unlink.patch 0012-ptrace-Always-put-ptracee-into-appropriate-execution.patch 0013-job-control-Don-t-set-group_stop-exit_code-if-re-ent.patch 0014-job-control-Small-reorganization-of-wait_consider_ta.patch 0015-job-control-Fix-ptracer-wait-2-hang-and-explain-nota.patch 0016-job-control-Allow-access-to-job-control-events-throu.patch 0017-job-control-Add-for_ptrace-to-do_notify_parent_cldst.patch 0018-job-control-Job-control-stop-notifications-should-al.patch 0019-job-control-Notify-the-real-parent-of-job-control-ev.patch 0020-job-control-Don-t-send-duplicate-job-control-stop-no.patch 0001-0010 are from the first patchset and unchanged. 0010-0020 are from the second patchset. 0010 and 0011 are the additional ones posted as 0.1 and 0.2. 0015, 0016 and 0019 are the updated version per Oleg's reviews. The rest remain unchanged. The patches are on top of the current mainline (6447f55da) and is available in the following git branch git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git ptrace and contains the following changes. fs/exec.c | 1 include/linux/sched.h | 11 + include/linux/tracehook.h | 27 --- kernel/exit.c | 84 +++++++++-- kernel/ptrace.c | 110 ++++++++++---- kernel/signal.c | 341 +++++++++++++++++++++++++++++++++++++--------- 6 files changed, 434 insertions(+), 140 deletions(-) Thanks. -- tejun [1] http://thread.gmane.org/gmane.linux.kernel/1109224 [2] http://thread.gmane.org/gmane.linux.kernel/1110403 [3] http://thread.gmane.org/gmane.linux.kernel/1107045