Eric W. Biederman b95e31c07c
posix-cpu-timers: Stop disabling timers on mt-exec ...
The reasons why the extra posix_cpu_timers_exit_group() invocation has been
added are not entirely clear from the commit message. Today all that
posix_cpu_timers_exit_group() does is stop timers that are tracking the
task from firing. Every other operation on those timers is still allowed.
The practical implication of this is posix_cpu_timer_del() which could
not get the siglock after the thread group leader has exited (because
sighand == NULL) would be able to run successfully because the timer
was already dequeued.
With that locking issue fixed there is no point in disabling all of the
timers. So remove this ``tempoary'' hack.
Fixes: e0a7021710ebiederm@xmission.com >
Signed-off-by: Thomas Gleixner <tglx@linutronix.de >
Link: https://lkml.kernel.org/r/87o8tityzs.fsf@x220.int.ebiederm.org
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b95e31c07c