diff options
Diffstat (limited to 'virt/kvm')
| -rw-r--r-- | virt/kvm/async_pf.c | 10 | ||||
| -rw-r--r-- | virt/kvm/kvm_main.c | 5 |
2 files changed, 9 insertions, 6 deletions
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index efeceb0a222d..3815e940fbea 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -76,16 +76,20 @@ static void async_pf_execute(struct work_struct *work) struct kvm_vcpu *vcpu = apf->vcpu; unsigned long addr = apf->addr; gva_t gva = apf->gva; + int locked = 1; might_sleep(); /* * This work is run asynchromously to the task which owns * mm and might be done in another context, so we must - * use FOLL_REMOTE. + * access remotely. */ - __get_user_pages_unlocked(NULL, mm, addr, 1, NULL, - FOLL_WRITE | FOLL_REMOTE); + down_read(&mm->mmap_sem); + get_user_pages_remote(NULL, mm, addr, 1, FOLL_WRITE, NULL, NULL, + &locked); + if (locked) + up_read(&mm->mmap_sem); kvm_async_page_present_sync(vcpu, apf); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 823544c166be..de102cae7125 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1418,13 +1418,12 @@ static int hva_to_pfn_slow(unsigned long addr, bool *async, bool write_fault, npages = get_user_page_nowait(addr, write_fault, page); up_read(¤t->mm->mmap_sem); } else { - unsigned int flags = FOLL_TOUCH | FOLL_HWPOISON; + unsigned int flags = FOLL_HWPOISON; if (write_fault) flags |= FOLL_WRITE; - npages = __get_user_pages_unlocked(current, current->mm, addr, 1, - page, flags); + npages = get_user_pages_unlocked(addr, 1, page, flags); } if (npages != 1) return npages; |