From e9545b9f8aeb63e05818e4b3250057260bc072aa Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 28 Apr 2014 17:03:00 +0200 Subject: [PATCH] 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 Suggested-by: Andrea Arcangeli Signed-off-by: Paolo Bonzini --- virt/kvm/async_pf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index 0ced4f31bc65..62f4223f4c9e 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); -- 2.20.1