linux-kernel - [PATCH v4 0/5] KVM: MMU: fix release no-slot pfn and clean up mmu code

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Message-ID: <50716EE0.6010504@linux.vnet.ibm.com>
Date:	Sun, 07 Oct 2012 20:00:32 +0800
From:	Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
To:	Avi Kivity <avi@...hat.com>
CC:	Marcelo Tosatti <mtosatti@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>, KVM <kvm@...r.kernel.org>
Subject: [PATCH v4 0/5] KVM: MMU: fix release no-slot pfn and clean up mmu
 code

Changlog:
- filter error pfn out in the common function - kvm_release_pfn instead
  of doing it in mmu code
- remove the patches which clean up for release noslot pfn path

Release pfn in the mmu code is little special for we allow no-slot pfn
go to spte walk on page fault path, that means, on page fault fail path,
we can not directly call kvm_release_pfn_clean.

This patchset fixes the bug which adds a branch to filter error pfn out
in kvm_release_pfn_clean and clean up current mmu code.

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