Signed-off-by: Philippe Gerum <r...@xenomai.org>
---
arch/blackfin/include/asm/mmu_context.h | 12 ++++++++++--
1 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/blackfin/include/asm/mmu_context.h
b/arch/blackfin/include/asm/mmu_context.h
index ae87c45..ae8ef4f 100644
--- a/arch/blackfin/include/asm/mmu_context.h
+++ b/arch/blackfin/include/asm/mmu_context.h
@@ -95,14 +95,22 @@ static inline void __switch_mm(struct mm_struct *prev_mm,
struct mm_struct *next
#endif
}
+#ifdef CONFIG_IPIPE
+#define lock_mm_switch(flags) local_irq_save_hw_cond(flags)
+#define unlock_mm_switch(flags) local_irq_restore_hw_cond(flags)
+#else
+#define lock_mm_switch(flags) do { (void)(flags); } while (0)
+#define unlock_mm_switch(flags) do { (void)(flags); } while (0)
+#endif /* CONFIG_IPIPE */
+
#ifdef CONFIG_MPU
static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
struct task_struct *tsk)
{
unsigned long flags;
- local_irq_save_hw_cond(flags);
+ lock_mm_switch(flags);
__switch_mm(prev, next, tsk);
- local_irq_restore_hw_cond(flags);
+ unlock_mm_switch(flags);
}
static inline void protect_page(struct mm_struct *mm, unsigned long addr,
--
1.6.3.3
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