if (!get_page_unless_zero(page))
goto out;
pte_unmap_unlock(ptep, ptl);
- put_and_wait_on_page_locked(page);
+ put_and_wait_on_page_locked(page, TASK_UNINTERRUPTIBLE);
return;
out:
pte_unmap_unlock(ptep, ptl);
if (!get_page_unless_zero(page))
goto unlock;
spin_unlock(ptl);
- put_and_wait_on_page_locked(page);
+ put_and_wait_on_page_locked(page, TASK_UNINTERRUPTIBLE);
return;
unlock:
spin_unlock(ptl);
__mod_lruvec_state(old_lruvec, NR_SHMEM, -nr);
__mod_lruvec_state(new_lruvec, NR_SHMEM, nr);
}
+#ifdef CONFIG_SWAP
+ if (PageSwapCache(page)) {
+ __mod_lruvec_state(old_lruvec, NR_SWAPCACHE, -nr);
+ __mod_lruvec_state(new_lruvec, NR_SWAPCACHE, nr);
+ }
+#endif
if (dirty && mapping_can_writeback(mapping)) {
__mod_lruvec_state(old_lruvec, NR_FILE_DIRTY, -nr);
__mod_zone_page_state(oldzone, NR_ZONE_WRITE_PENDING, -nr);
return -ENOSYS;
}
+ if (page_count(hpage) == 1) {
+ /* page was freed from under us. So we are done. */
+ putback_active_hugepage(hpage);
+ return MIGRATEPAGE_SUCCESS;
+ }
+
new_hpage = get_new_page(hpage, private);
if (!new_hpage)
return -ENOMEM;