linux-kernel - [PATCH 22/31] mips/kvm: Split get_new_mmu

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Date:	Fri,  7 Jun 2013 16:03:26 -0700
From:	David Daney <ddaney.cavm@...il.com>
To:	linux-mips@...ux-mips.org, ralf@...ux-mips.org,
	kvm@...r.kernel.org, Sanjay Lal <sanjayl@...asys.com>
Cc:	linux-kernel@...r.kernel.org, David Daney <david.daney@...ium.com>
Subject: [PATCH 22/31] mips/kvm: Split get_new_mmu_context into two parts.

From: David Daney <david.daney@...ium.com>

The new function (part) get_new_asid() can now be used from MIPSVZ code.

Signed-off-by: David Daney <david.daney@...ium.com>
---
 arch/mips/include/asm/mmu_context.h | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h
index 8201160..5609a32 100644
--- a/arch/mips/include/asm/mmu_context.h
+++ b/arch/mips/include/asm/mmu_context.h
@@ -108,8 +108,8 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
 
 #ifndef CONFIG_MIPS_MT_SMTC
 /* Normal, classic MIPS get_new_mmu_context */
-static inline void
-get_new_mmu_context(struct mm_struct *mm, unsigned long cpu)
+static inline unsigned long
+get_new_asid(unsigned long cpu)
 {
 	extern void kvm_local_flush_tlb_all(void);
 	unsigned long asid = asid_cache(cpu);
@@ -125,7 +125,13 @@ get_new_mmu_context(struct mm_struct *mm, unsigned long cpu)
 		if (!asid)		/* fix version if needed */
 			asid = ASID_FIRST_VERSION;
 	}
+	return asid;
+}
 
+static inline void
+get_new_mmu_context(struct mm_struct *mm, unsigned long cpu)
+{
+	unsigned long asid = get_new_asid(cpu);
 	cpu_context(cpu, mm) = asid_cache(cpu) = asid;
 }
 
-- 
1.7.11.7

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