From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 20 Nov 2007 10:13:35 +0000 (+0100)
Subject: [S390] Fix kernel preemption.
X-Git-Tag: v2.6.24-rc4~108^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b8e7a54cd06b0b0174029ef3a7f5a1415a2c28f2;p=pandora-kernel.git

[S390] Fix kernel preemption.

When returning from IRQ handling and TIF_NEED_RESCHED is set we must
call preempt_schedule_irq() instead of schedule().
Otherwise the BKL might be unlocked in schedule() and therfore
everything that relies on the BKL is broken.

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