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[PARISC] Optimize TLB flush on SMP systems

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Signed-off-by: Randolph Chung <tausq@debian.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
This commit is contained in:
Randolph Chung 2006-12-11 16:07:51 -08:00 committed by Kyle McMartin
parent e7b3ca0854
commit 592ac93a60
1 changed files with 11 additions and 13 deletions
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24
include/asm-parisc/tlbflush.h
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@ -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)