linux-kernel - Re: [PATCH v2] f2fs-tools: fix to match with the start

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Message-ID: <bf595a86-700e-9225-6a5e-a245dbc027ad@huawei.com>
Date:   Mon, 28 May 2018 15:11:51 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     Yunlong Song <yunlong.song@...wei.com>, <jaegeuk@...nel.org>,
        <chao@...nel.org>, <yunlong.song@...oud.com>
CC:     <miaoxie@...wei.com>, <bintian.wang@...wei.com>,
        <shengyong1@...wei.com>, <heyunlei@...wei.com>,
        <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] f2fs-tools: fix to match with the start_sector

On 2018/5/7 10:15, Yunlong Song wrote:
> f2fs-tools uses ioctl BLKSSZGET to get sector_size, however, this ioctl
> will return a value which may be larger than 512 (according to the value
> of q->limits.logical_block_size), then this will be inconsistent with
> the start_sector, since start_sector is got from ioctl HDIO_GETGEO and
> is always in 512 size unit for a sector. To fix this problem, just
> change the sector_size to the default value when computing with
> start_sector. And fix sectors_per_blk as well.
> 
> Signed-off-by: Yunlong Song <yunlong.song@...wei.com>

Reviewed-by: Chao Yu <yuchao0@...wei.com>

Thanks,