From: Max Filippov <jcmvbkbc@gmail.com>
Date: Mon, 26 Aug 2013 11:12:58 +0000 (+0400)
Subject: xtensa: check thread flags atomically on return from user exception
X-Git-Tag: v3.12-rc1~15^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aea8e7c80ab50305257838bfb04f91a76cf9fec7;p=pandora-kernel.git

xtensa: check thread flags atomically on return from user exception

Check pending signals and rescheduling thread flags with interrupts
disabled, and don't enable them if no flags are set. Call
trace_hardirqs_on after thread flags handling, so that rescheduling is
done and hardirqs tracking flag is updated in the correct task context.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
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