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Message-ID: <20140428150300.GB19879@redhat.com>
Date: Mon, 28 Apr 2014 17:03:00 +0200
From: Oleg Nesterov <oleg@...hat.com>
To: Andrea Arcangeli <aarcange@...hat.com>
Cc: Paolo Bonzini <pbonzini@...hat.com>,
Avi Kivity <avi.kivity@...il.com>,
Gleb Natapov <gleb@...nel.org>,
Dominik Dingel <dingel@...ux.vnet.ibm.com>,
Christian Borntraeger <borntraeger@...ibm.com>,
kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/2] KVM: async_pf: change async_pf_execute() to use
get_user_pages(tsk => NULL)
async_pf_execute() passes tsk == current to gup(), this is doesn't
hurt but unnecessary and misleading. "tsk" is only used to account
the number of faults and current is the random workqueue thread.
Signed-off-by: Oleg Nesterov <oleg@...hat.com>
---
virt/kvm/async_pf.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 0ced4f3..62f4223 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -81,7 +81,7 @@ static void async_pf_execute(struct work_struct *work)
might_sleep();
down_read(&mm->mmap_sem);
- get_user_pages(current, mm, addr, 1, 1, 0, NULL, NULL);
+ get_user_pages(NULL, mm, addr, 1, 1, 0, NULL, NULL);
up_read(&mm->mmap_sem);
kvm_async_page_present_sync(vcpu, apf);
--
1.5.5.1
--
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