static int ocfs2_write_begin_inline(struct address_space *mapping,
				    struct inode *inode,
				    struct ocfs2_write_ctxt *wc)
{
	int ret;
	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
	struct page *page;
	handle_t *handle;
	struct ocfs2_dinode *di = (struct ocfs2_dinode *)wc->w_di_bh->b_data;

	page = find_or_create_page(mapping, 0, GFP_NOFS);
	if (!page) {
		ret = -ENOMEM;
		mlog_errno(ret);
		goto out;
	}
	/*
	 * If we don't set w_num_pages then this page won't get unlocked
	 * and freed on cleanup of the write context.
	 */
	wc->w_pages[0] = wc->w_target_page = page;
	wc->w_num_pages = 1;

	handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
	if (IS_ERR(handle)) {
		ret = PTR_ERR(handle);
		mlog_errno(ret);
		goto out;
	}

	ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), wc->w_di_bh,
				      OCFS2_JOURNAL_ACCESS_WRITE);
	if (ret) {
		ocfs2_commit_trans(osb, handle);

		mlog_errno(ret);
		goto out;
	}

	if (!(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL))
		ocfs2_set_inode_data_inline(inode, di);

	if (!PageUptodate(page)) {
		ret = ocfs2_read_inline_data(inode, page, wc->w_di_bh);
		if (ret) {
			ocfs2_commit_trans(osb, handle);

			goto out;
		}
	}

	wc->w_handle = handle;
out:
	return ret;
}
static int ocfs2_write_begin_inline(struct address_space *mapping,
				    struct inode *inode,
				    struct ocfs2_write_ctxt *wc)
{
	int ret;
	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
	struct page *page;
	handle_t *handle;
	struct ocfs2_dinode *di = (struct ocfs2_dinode *)wc->w_di_bh->b_data;

	page = find_or_create_page(mapping, 0, GFP_NOFS);
	if (!page) {
		ret = -ENOMEM;
		mlog_errno(ret);
		goto out;
	}
	 
	wc->w_pages[0] = wc->w_target_page = page;
	wc->w_num_pages = 1;

	handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
	if (IS_ERR(handle)) {
		ret = PTR_ERR(handle);
		mlog_errno(ret);
		goto out;
	}

	ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), wc->w_di_bh,
				      OCFS2_JOURNAL_ACCESS_WRITE);
	if (ret) {
		ocfs2_commit_trans(osb, handle);

		mlog_errno(ret);
		goto out;
	}

	if (!(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL))
		ocfs2_set_inode_data_inline(inode, di);

	if (!PageUptodate(page)) {
		ret = ocfs2_read_inline_data(inode, page, wc->w_di_bh);
		if (ret) {
			ocfs2_commit_trans(osb, handle);

			goto out;
		}
	}

	wc->w_handle = handle;
out:
	return ret;
}