From 592ac93a607109e0643da6c23ae07ac749e973b1 Mon Sep 17 00:00:00 2001 From: Randolph Chung Date: Mon, 11 Dec 2006 16:07:51 -0800 Subject: [PATCH] [PARISC] Optimize TLB flush on SMP systems Signed-off-by: Randolph Chung Signed-off-by: Kyle McMartin --- include/asm-parisc/tlbflush.h | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) diff --git a/include/asm-parisc/tlbflush.h b/include/asm-parisc/tlbflush.h index f662e837dea1..67b3814a71dd 100644 --- a/include/asm-parisc/tlbflush.h +++ b/include/asm-parisc/tlbflush.h @@ -39,21 +39,19 @@ extern void flush_tlb_all_local(void *); * etc. do not do that). */ +static inline void __flush_tlb_mm(void *mmv) +{ + struct mm_struct *mm = (struct mm_struct *)mmv; + if (mm == current->active_mm) + load_context(mm->context); +} + static inline void flush_tlb_mm(struct mm_struct *mm) { - BUG_ON(mm == &init_mm); /* Should never happen */ - -#ifdef CONFIG_SMP - flush_tlb_all(); -#else - if (mm) { - if (mm->context != 0) - free_sid(mm->context); - mm->context = alloc_sid(); - if (mm == current->active_mm) - load_context(mm->context); - } -#endif + if (mm->context != 0) + free_sid(mm->context); + mm->context = alloc_sid(); + on_each_cpu(__flush_tlb_mm, mm, 1, 1); } extern __inline__ void flush_tlb_pgtables(struct mm_struct *mm, unsigned long start, unsigned long end)