[Bug runtime/15080] The kernel function 'signal_wake_up' is gone

["dsmith at redhat dot com" <sourceware-bugzilla@sourceware.org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=15080

--- Comment #1 from David Smith <dsmith at redhat dot com> 2013-01-29 16:53:17 UTC ---
Looks like the following commit is the culprit:

commit 910ffdb18a6408e14febbb6e4b6840fd2c928c82
Author: Oleg Nesterov <oleg@redhat.com>
Date:   Mon Jan 21 20:47:41 2013 +0100

    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>

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