Commit c92737ce authored Jun 07, 2016 by Jaegeuk Kim

f2fs: fix deadlock in add_link failure



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 <jaegeuk@kernel.org>

parent 36abef4e

fs/f2fs/dir.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -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);