Messages in this thread Patch in this message | | | From | Jan Kara <> | Subject | [PATCH 17/26] kvm: Use get_user_pages_unlocked() in async_pf_execute() | Date | Wed, 2 Oct 2013 16:27:58 +0200 |
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CC: Gleb Natapov <gleb@redhat.com> CC: Paolo Bonzini <pbonzini@redhat.com> CC: kvm@vger.kernel.org Signed-off-by: Jan Kara <jack@suse.cz> --- virt/kvm/async_pf.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index 8a39dda7a325..8d4b39a4bc12 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -67,9 +67,7 @@ static void async_pf_execute(struct work_struct *work) might_sleep(); use_mm(mm); - down_read(&mm->mmap_sem); - get_user_pages(current, mm, addr, 1, 1, 0, &page, NULL); - up_read(&mm->mmap_sem); + get_user_pages_unlocked(current, mm, addr, 1, 1, 0, &page); unuse_mm(mm); spin_lock(&vcpu->async_pf.lock); -- 1.8.1.4
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