The low level preemption code fiddles with the PREEMPT_ACTIVE bit for
no reason and calls schedule() with interrupts disabled, which is
wrong to begin with. Remove the PREEMPT_ACTIVE fiddling and call the
proper schedule_preempt_irq() function.
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Cc: "David S. Miller" <da...@davemloft.net>
Cc: sparcli...@vger.kernel.org
---
arch/sparc/kernel/rtrap_64.S | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
Index: linux-2.6/arch/sparc/kernel/rtrap_64.S
===================================================================
--- linux-2.6.orig/arch/sparc/kernel/rtrap_64.S
+++ linux-2.6/arch/sparc/kernel/rtrap_64.S
@@ -306,12 +306,9 @@ to_kernel:
nop
cmp %l4, 0
bne,pn %xcc, kern_fpucheck
- sethi %hi(PREEMPT_ACTIVE), %l6
- stw %l6, [%g6 + TI_PRE_COUNT]
- call schedule
+ call preempt_schedule_irq
nop
ba,pt %xcc, rtrap
- stw %g0, [%g6 + TI_PRE_COUNT]
#endif
kern_fpucheck: ldub [%g6 + TI_FPDEPTH], %l5
brz,pt %l5, rt_continue
--
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