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authorRandolph Chung <tausq@debian.org>2006-12-11 16:07:51 -0800
committerKyle McMartin <kyle@athena.road.mcmartin.ca>2007-02-17 00:41:27 -0500
commit592ac93a607109e0643da6c23ae07ac749e973b1 (patch)
treecddb6ef701a2e76e8e38daf592745065f65aa4e4 /include/asm-parisc
parente7b3ca08549caccf5d6e1cf066780bf4f0ae77a7 (diff)
downloadop-kernel-dev-592ac93a607109e0643da6c23ae07ac749e973b1.zip
op-kernel-dev-592ac93a607109e0643da6c23ae07ac749e973b1.tar.gz
[PARISC] Optimize TLB flush on SMP systems
Signed-off-by: Randolph Chung <tausq@debian.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Diffstat (limited to 'include/asm-parisc')
-rw-r--r--include/asm-parisc/tlbflush.h24
1 files changed, 11 insertions, 13 deletions
diff --git a/include/asm-parisc/tlbflush.h b/include/asm-parisc/tlbflush.h
index f662e83..67b3814 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(struct mm_struct *mm)
+static inline void __flush_tlb_mm(void *mmv)
{
- BUG_ON(mm == &init_mm); /* Should never happen */
+ struct mm_struct *mm = (struct mm_struct *)mmv;
+ if (mm == current->active_mm)
+ load_context(mm->context);
+}
-#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
+static inline void flush_tlb_mm(struct mm_struct *mm)
+{
+ 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)
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