diff options
Diffstat (limited to 'fs/ocfs2/refcounttree.c')
| -rw-r--r-- | fs/ocfs2/refcounttree.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index 7869622af22a..1114ef02e780 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -2946,6 +2946,7 @@ int ocfs2_duplicate_clusters_by_page(handle_t *handle, if (map_end & (PAGE_SIZE - 1)) to = map_end & (PAGE_SIZE - 1); +retry: page = find_or_create_page(mapping, page_index, GFP_NOFS); if (!page) { ret = -ENOMEM; @@ -2954,11 +2955,18 @@ int ocfs2_duplicate_clusters_by_page(handle_t *handle, } /* - * In case PAGE_SIZE <= CLUSTER_SIZE, This page - * can't be dirtied before we CoW it out. + * In case PAGE_SIZE <= CLUSTER_SIZE, we do not expect a dirty + * page, so write it back. */ - if (PAGE_SIZE <= OCFS2_SB(sb)->s_clustersize) - BUG_ON(PageDirty(page)); + if (PAGE_SIZE <= OCFS2_SB(sb)->s_clustersize) { + if (PageDirty(page)) { + /* + * write_on_page will unlock the page on return + */ + ret = write_one_page(page); + goto retry; + } + } if (!PageUptodate(page)) { ret = block_read_full_page(page, ocfs2_get_block); @@ -4127,7 +4135,6 @@ static int ocfs2_create_reflink_node(struct inode *s_inode, struct buffer_head *ref_root_bh = NULL; struct ocfs2_cached_dealloc_ctxt dealloc; struct ocfs2_super *osb = OCFS2_SB(s_inode->i_sb); - struct ocfs2_refcount_block *rb; struct ocfs2_dinode *di = (struct ocfs2_dinode *)s_bh->b_data; struct ocfs2_refcount_tree *ref_tree; @@ -4154,7 +4161,6 @@ static int ocfs2_create_reflink_node(struct inode *s_inode, mlog_errno(ret); goto out; } - rb = (struct ocfs2_refcount_block *)ref_root_bh->b_data; ret = ocfs2_duplicate_extent_list(s_inode, t_inode, t_bh, &ref_tree->rf_ci, ref_root_bh, |