[PATCH 6/7] f2fs: fix deadlock in add_link failure

[Jaegeuk Kim]

mkdir                        sync_dirty_inode
 - init_inode_metadata
   - lock_page(node)
   - make_empty_dir
                             - filemap_fdatawrite()
                              - do_writepages
                              - lock_page(data)
                              - write_page(data)
                               - lock_page(node)
   - f2fs_init_acl
    - error
   - truncate_inode_pages
    - lock_page(data)

So, we don't need to truncate data pages in this error case, which will
be done by f2fs_evict_inode.

Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
---
 fs/f2fs/dir.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index f6ab3c2..4864824 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -450,9 +450,6 @@ struct page *init_inode_metadata(struct inode *inode, 
struct inode *dir,
        return page;
 
 put_error:
-       /* truncate empty dir pages */
-       truncate_inode_pages(&inode->i_data, 0);
-
        clear_nlink(inode);
        update_inode(inode, page);
        f2fs_put_page(page, 1);
-- 
2.8.3