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-rw-r--r--arch/powerpc/kernel/irq.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 346cc4a396f..d281fb6f12f 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -451,11 +451,18 @@ static inline void do_softirq_onstack(void)
curtp = current_thread_info();
irqtp = softirq_ctx[smp_processor_id()];
irqtp->task = curtp->task;
+ irqtp->flags = 0;
current->thread.ksp_limit = (unsigned long)irqtp +
_ALIGN_UP(sizeof(struct thread_info), 16);
call_do_softirq(irqtp);
current->thread.ksp_limit = saved_sp_limit;
irqtp->task = NULL;
+
+ /* Set any flag that may have been set on the
+ * alternate stack
+ */
+ if (irqtp->flags)
+ set_bits(irqtp->flags, &curtp->flags);
}
void do_softirq(void)