ptrace: introduce signal_wake_up_state() and ptrace_signal_wake_up()
authorOleg Nesterov <oleg@redhat.com>
Mon, 21 Jan 2013 19:47:41 +0000 (20:47 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 22 Jan 2013 16:50:08 +0000 (08:50 -0800)
commit910ffdb18a6408e14febbb6e4b6840fd2c928c82
tree258a215685f2ca2bb11dcd92582e0adafbd83f7b
parent9a9284153d965a57edc7162a8e57c14c97f3a935
ptrace: introduce signal_wake_up_state() and ptrace_signal_wake_up()

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>
include/linux/sched.h
kernel/ptrace.c
kernel/signal.c