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[S390] Fix kernel preemption.
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Tue, 20 Nov 2007 10:13:35 +0000 (11:13 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Tue, 20 Nov 2007 10:13:46 +0000 (11:13 +0100)
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>
arch/s390/kernel/entry.S patch | blob | history
arch/s390/kernel/entry64.S patch | blob | history

diff --cc arch/s390/kernel/entry.S
Simple merge
diff --cc arch/s390/kernel/entry64.S
Simple merge
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