diff options
| -rw-r--r-- | include/asm-generic/tlb.h | 6 | ||||
| -rw-r--r-- | include/asm-x86_64/tlbflush.h | 4 |
2 files changed, 9 insertions, 1 deletions
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index faff403e106..7d0298347ee 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -23,7 +23,11 @@ * and page free order so much.. */ #ifdef CONFIG_SMP - #define FREE_PTE_NR 506 + #ifdef ARCH_FREE_PTR_NR + #define FREE_PTR_NR ARCH_FREE_PTR_NR + #else + #define FREE_PTE_NR 506 + #endif #define tlb_fast_mode(tlb) ((tlb)->nr == ~0U) #else #define FREE_PTE_NR 1 diff --git a/include/asm-x86_64/tlbflush.h b/include/asm-x86_64/tlbflush.h index 505b0cf906d..4a9c20ea9b1 100644 --- a/include/asm-x86_64/tlbflush.h +++ b/include/asm-x86_64/tlbflush.h @@ -109,6 +109,10 @@ static inline void flush_tlb_range(struct vm_area_struct * vma, unsigned long st #define TLBSTATE_OK 1 #define TLBSTATE_LAZY 2 +/* Roughly an IPI every 20MB with 4k pages for freeing page table + ranges. Cost is about 42k of memory for each CPU. */ +#define ARCH_FREE_PTE_NR 5350 + #endif #define flush_tlb_kernel_range(start, end) flush_tlb_all() |