linux-kernel - Re: [PATCH 1/6] f2fs: support in batch multi blocks preallocation

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Message-ID: <705bb492-b510-462e-fef3-d2f66dbb871f@huawei.com>
Date:	Wed, 11 May 2016 10:22:05 +0800
From:	Chao Yu <yuchao0@...wei.com>
To:	Jaegeuk Kim <jaegeuk@...nel.org>
CC:	<linux-f2fs-devel@...ts.sourceforge.net>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/6] f2fs: support in batch multi blocks preallocation

On 2016/5/11 5:41, Jaegeuk Kim wrote:
> +
> +	f2fs_wait_on_page_writeback(dn->node_page, NODE, true);
> +
> +	for (; count > 0; dn->ofs_in_node++) {
> +		block_t blkaddr =
> +			datablock_addr(dn->node_page, dn->ofs_in_node);
> +		if (blkaddr == NULL_ADDR) {
> +			dn->data_blkaddr = NEW_ADDR;
> +			__set_data_blkaddr(dn);
> +			count--;
> +		}
> +	}

Should let ofs_in_node increase to offset where blkaddr = NULL_ADDR in
ENOSPC case or increase to end_offset in normal case, right?

Thanks,