From: Bernd Schmidt <bernds_cb1@t-online.de>
Date: Wed, 23 Apr 2008 18:51:36 +0000 (+0800)
Subject: [Blackfin] arch: a rather old performance improvement for the signal handling code
X-Git-Tag: v2.6.26-rc1~1085^2~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=697a9d65aa799940da1c9145944c6b9bd0f442c5;p=pandora-kernel.git

[Blackfin] arch: a rather old performance improvement for the signal handling code

This is a rather old performance improvement for the signal handling
code, which was originally only committed on the 2007R1 branch as a
workaround for what we suspected to be a hardware bug.

There's no point in constructing a sigreturn stub on the stack and
flushing caches; we can just make signal handlers return to a known
location in the fixed code area.

Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
---

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