From: Oleg Nesterov <oleg@redhat.com>
Date: Mon, 21 Jan 2013 19:47:41 +0000 (+0100)
Subject: ptrace: introduce signal_wake_up_state() and ptrace_signal_wake_up()
X-Git-Tag: v3.2.39~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb24eda9eee7a1cc865bb10dbb89edf7c1f5cdc7;p=pandora-kernel.git

ptrace: introduce signal_wake_up_state() and ptrace_signal_wake_up()

commit 910ffdb18a6408e14febbb6e4b6840fd2c928c82 upstream.

Cleanup and preparation for the next change.

signal_wake_up(resume => true) is overused. None of ptrace/jctl callers
actually want to wakeup a TASK_WAKEKILL task, but they can't specify the
necessary mask.

Turn signal_wake_up() into signal_wake_up_state(state), reintroduce
signal_wake_up() as a trivial helper, and add ptrace_signal_wake_up()
which adds __TASK_TRACED.

This way ptrace_signal_wake_up() can work "inside" ptrace_request()
even if the tracee doesn't have the TASK_WAKEKILL bit set.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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