tree e42beedde089c3aabe9df1537ad687f2756a69ac
parent 37e3a6ac5a30468021a2f366e497d455bbcb5d21
author Heiko Carstens <heiko.carstens@de.ibm.com> 1195553615 +0100
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1195553626 +0100

[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>