diff options
Diffstat (limited to 'arch/parisc/include/asm/mmu_context.h')
| -rw-r--r-- | arch/parisc/include/asm/mmu_context.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/mmu_context.h b/arch/parisc/include/asm/mmu_context.h index a81226257878..697a906ab1b0 100644 --- a/arch/parisc/include/asm/mmu_context.h +++ b/arch/parisc/include/asm/mmu_context.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __PARISC_MMU_CONTEXT_H #define __PARISC_MMU_CONTEXT_H @@ -63,6 +64,9 @@ static inline void switch_mm(struct mm_struct *prev, { unsigned long flags; + if (prev == next) + return; + local_irq_save(flags); switch_mm_irqs_off(prev, next, tsk); local_irq_restore(flags); |