Subject: [PATCH 1/2] export cpu_tlbstate to modules

From: "Michael S. Tsirkin" <[email-masked]>
Date: Mon, 10 Aug 2009 21:53:02 +0300

vhost net module wants to do copy to/from user from a kernel thread,
which needs switch_mm (like what fs/aio has).
export cpu_tlbstate to make this possible

Signed-off-by: Michael S. Tsirkin <[email-masked]>
---
 arch/x86/mm/tlb.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 821e970..e33a5f0 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -13,6 +13,7 @@
 
 DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate)
 			= { &init_mm, 0, };
+EXPORT_PER_CPU_SYMBOL_GPL(cpu_tlbstate);
 
 /*
  *	Smarter SMP flushing macros.
-- 
1.6.2.5