From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 18 Mar 2009 12:27:34 +0000 (+0100)
Subject: [S390] ftrace/mcount: fix kernel stack backchain
X-Git-Tag: v2.6.29~16^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cf087343805ebfea2b1234b06fd5f12273e865b1;p=pandora-kernel.git

[S390] ftrace/mcount: fix kernel stack backchain

With packed stack the backchain is at a different location.
Just use __SF_BACKCHAIN as an offset to store the backchain.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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