diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2014-02-14 14:08:48 +0400 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2014-04-06 21:29:17 +0400 |
| commit | 04c6b3e2b5e5c1dbd99ad7620033eafd05ff4c26 (patch) | |
| tree | a6f93ad79be6262819a5bc6b73f2646c4f4985dd /arch/xtensa/include | |
| parent | 8585b316bbed9339412d267c1fd8839dd059d69f (diff) | |
xtensa: optimize local_flush_tlb_kernel_range
Don't flush whole TLB if only a small kernel range is requested.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/include')
| -rw-r--r-- | arch/xtensa/include/asm/tlbflush.h | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/arch/xtensa/include/asm/tlbflush.h b/arch/xtensa/include/asm/tlbflush.h index fc34274ce41b..06875feb27c2 100644 --- a/arch/xtensa/include/asm/tlbflush.h +++ b/arch/xtensa/include/asm/tlbflush.h @@ -36,6 +36,7 @@ void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page); void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); +void local_flush_tlb_kernel_range(unsigned long start, unsigned long end); #ifdef CONFIG_SMP @@ -44,12 +45,7 @@ void flush_tlb_mm(struct mm_struct *); void flush_tlb_page(struct vm_area_struct *, unsigned long); void flush_tlb_range(struct vm_area_struct *, unsigned long, unsigned long); - -static inline void flush_tlb_kernel_range(unsigned long start, - unsigned long end) -{ - flush_tlb_all(); -} +void flush_tlb_kernel_range(unsigned long start, unsigned long end); #else /* !CONFIG_SMP */ @@ -58,7 +54,8 @@ static inline void flush_tlb_kernel_range(unsigned long start, #define flush_tlb_page(vma, page) local_flush_tlb_page(vma, page) #define flush_tlb_range(vma, vmaddr, end) local_flush_tlb_range(vma, vmaddr, \ end) -#define flush_tlb_kernel_range(start, end) local_flush_tlb_all() +#define flush_tlb_kernel_range(start, end) local_flush_tlb_kernel_range(start, \ + end) #endif /* CONFIG_SMP */ |