From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
To: Avi Kivity <avi@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
LKML <linux-kernel@vger.kernel.org>, KVM <kvm@vger.kernel.org>
Subject: [PATCH v2 09/12] KVM: MMU: remove unnecessary kvm_mmu_free_some_pages
Date: Tue, 02 Aug 2011 19:11:21 +0800 [thread overview]
Message-ID: <4E37DB59.1010608@cn.fujitsu.com> (raw)
In-Reply-To: <4E37DA49.1040000@cn.fujitsu.com>
In kvm_mmu_pte_write, we do not need to alloc shadow page, so calling
kvm_mmu_free_some_pages is really unnecessary
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
---
arch/x86/kvm/mmu.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 5517115..9d0acdf 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3585,7 +3585,6 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
*/
mmu_topup_memory_caches(vcpu);
spin_lock(&vcpu->kvm->mmu_lock);
- kvm_mmu_free_some_pages(vcpu);
++vcpu->kvm->stat.mmu_pte_write;
trace_kvm_mmu_audit(vcpu, AUDIT_PRE_PTE_WRITE);
if (gfn == vcpu->arch.last_pt_write_gfn
--
1.7.5.4
next prev parent reply other threads:[~2011-08-02 11:09 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-02 11:06 [PATCH v2 01/12] KVM: MMU: avoid pte_list_desc run out in kvm_mmu_pte_write Xiao Guangrong
2011-08-02 11:07 ` [PATCH v2 02/12] KVM: x86: tag the instructions which are used to write page table Xiao Guangrong
2011-08-02 12:20 ` Avi Kivity
2011-08-03 6:02 ` Xiao Guangrong
2011-08-03 8:09 ` Avi Kivity
2011-08-03 9:24 ` Xiao Guangrong
2011-08-03 9:25 ` Avi Kivity
2011-08-03 9:41 ` Xiao Guangrong
2011-08-03 9:40 ` Avi Kivity
2011-08-02 11:08 ` [PATCH v2 03/12] zap sp if it is written by unaware instructions Xiao Guangrong
2011-08-02 11:08 ` [PATCH v2 04/12] KVM: x86: cleanup port-in/port-out emulated Xiao Guangrong
2011-08-02 11:09 ` [PATCH v2 05/12] KVM: x86: fast emulate repeat string write instructions Xiao Guangrong
2011-08-03 8:10 ` Avi Kivity
2011-08-03 9:31 ` Xiao Guangrong
2011-08-02 11:09 ` [PATCH v2 06/12] KVM: MMU: do not mark access bit on pte write path Xiao Guangrong
2011-08-02 11:10 ` [PATCH v2 07/12] KVM: MMU: cleanup FNAME(invlpg) Xiao Guangrong
2011-08-02 11:10 ` [PATCH v2 08/12] KVM: MMU: fast prefetch spte on invlpg path Xiao Guangrong
2011-08-02 18:36 ` Marcelo Tosatti
2011-08-03 6:03 ` Xiao Guangrong
2011-08-02 11:11 ` Xiao Guangrong [this message]
2011-08-02 11:11 ` [PATCH v2 10/12] KVM: MMU: split kvm_mmu_pte_write function Xiao Guangrong
2011-08-02 11:12 ` [PATCH v2 11/12] KVM: MMU: fix detecting misaligned accessed Xiao Guangrong
2011-08-02 11:13 ` [PATCH v2 12/12] KVM: MMU: improve write flooding detected Xiao Guangrong
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4E37DB59.1010608@cn.fujitsu.com \
--to=xiaoguangrong@cn.fujitsu.com \
--cc=avi@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mtosatti@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox