From: Richard Weinberger <richard@nod.at>
Date: Sun, 18 Aug 2013 11:30:08 +0000 (+0200)
Subject: um: Cleanup SIGTERM handling
X-Git-Tag: v3.12-rc1~94^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=91d44ff860a9e9c0db81a89cbc24fa31fbd8e6d3;p=pandora-kernel.git

um: Cleanup SIGTERM handling

Richard reported that some UML processes survive if the UML
main process receives a SIGTERM.
This issue was caused by a wrongly placed signal(SIGTERM, SIG_DFL)
in init_new_thread_signals().
It disabled the UML exit handler accidently for some processes.
The correct solution is to disable the fatal handler for all
UML helper threads/processes.
Such that last_ditch_exit() does not get called multiple times
and all processes can exit due to SIGTERM.

Reported-and-tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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