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Show First 20 Lines • Show All 282 Lines • ▼ Show 20 Lines	int ttm_tt_swapin(struct ttm_tt *ttm)
vm_page_t from_page, to_page;		vm_page_t from_page, to_page;
int i, ret, rv;		int i, ret, rv;

obj = ttm->swap_storage;		obj = ttm->swap_storage;

VM_OBJECT_WLOCK(obj);		VM_OBJECT_WLOCK(obj);
vm_object_pip_add(obj, 1);		vm_object_pip_add(obj, 1);
for (i = 0; i < ttm->num_pages; ++i) {		for (i = 0; i < ttm->num_pages; ++i) {
from_page = vm_page_grab(obj, i, VM_ALLOC_NORMAL);		rv = vm_page_grab_valid(&from_page, obj, i,
if (from_page->valid != VM_PAGE_BITS_ALL) {		VM_ALLOC_NORMAL \| VM_ALLOC_NOBUSY);
if (vm_pager_has_page(obj, i, NULL, NULL)) {
rv = vm_pager_get_pages(obj, &from_page, 1,
NULL, NULL);
if (rv != VM_PAGER_OK) {		if (rv != VM_PAGER_OK) {
vm_page_lock(from_page);
vm_page_free(from_page);
vm_page_unlock(from_page);
ret = -EIO;		ret = -EIO;
goto err_ret;		goto err_ret;
}		}
} else
vm_page_zero_invalid(from_page, TRUE);
}
vm_page_xunbusy(from_page);
to_page = ttm->pages[i];		to_page = ttm->pages[i];
if (unlikely(to_page == NULL)) {		if (unlikely(to_page == NULL)) {
ret = -ENOMEM;		ret = -ENOMEM;
goto err_ret;		goto err_ret;
}		}
pmap_copy_page(from_page, to_page);		pmap_copy_page(from_page, to_page);
}		}
vm_object_pip_wakeup(obj);		vm_object_pip_wakeup(obj);
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