diff options
| -rw-r--r-- | fs/ocfs2/refcounttree.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index 5b64468de0b..8ae65c9c020 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -2957,8 +2957,12 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle, page = grab_cache_page(mapping, page_index); - /* This page can't be dirtied before we CoW it out. */ - BUG_ON(PageDirty(page)); + /* + * In case PAGE_CACHE_SIZE <= CLUSTER_SIZE, This page + * can't be dirtied before we CoW it out. + */ + if (PAGE_CACHE_SIZE <= OCFS2_SB(sb)->s_clustersize) + BUG_ON(PageDirty(page)); if (!PageUptodate(page)) { ret = block_read_full_page(page, ocfs2_get_block); |