+ if (PageDirty(page)) {
+ /*
+ * For pages holding split b-tree node buffers, dirty
+ * flag on the buffers may be cleared discretely.
+ * In that case, the page is once redirtied for
+ * remaining buffers, and it must be cancelled if
+ * all the buffers get cleaned later.
+ */
+ lock_page(page);
+ if (nilfs_page_buffers_clean(page))
+ __nilfs_clear_page_dirty(page);
+ unlock_page(page);
+ }