[PATCH] x86-64: Increase TLB flush array size

[pandora-kernel.git] / include / asm-x86_64 / tlbflush.h

diff --git a/include/asm-x86_64/tlbflush.h b/include/asm-x86_64/tlbflush.h
index 505b0cf..4a9c20e 100644 (file)
--- 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()