From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Fri, 27 Sep 2013 13:24:38 +0000 (+0200)
Subject: s390: fix system call restart after inferior call
X-Git-Tag: v3.12-rc5~28^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dbbfe487e5f3fc00c9fe5207d63309859704d12f;p=pandora-kernel.git

s390: fix system call restart after inferior call

Git commit 616498813b11ffef "s390: system call path micro optimization"
introduced a regression in regard to system call restarting and inferior
function calls via the ptrace interface. The pointer to the system call
table needs to be loaded in sysc_sigpending if do_signal returns with
TIF_SYSCALl set after it restored a system call context.

Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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