linux-kernel - Re: [PATCH] erofs: fix unsupported blksize in fileio mode

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Message-ID: <231e17e3-82c1-49f4-9cc1-b376b89205b3@linux.alibaba.com>
Date: Tue, 15 Oct 2024 11:47:24 +0800
From: Gao Xiang <hsiangkao@...ux.alibaba.com>
To: Hongzhen Luo <hongzhen@...ux.alibaba.com>, linux-erofs@...ts.ozlabs.org
Cc: linux-kernel@...r.kernel.org
Subject: Re: [PATCH] erofs: fix unsupported blksize in fileio mode

Hi Hongzhen,

On 2024/10/15 11:36, Hongzhen Luo wrote:
> In fileio mode, when blcksize is not equal to PAGE_SIZE,
> erofs will attempt to set the block size of sb->s_bdev,
> which will trigger a panic. This patch fixes this.
> 
> Fixes: fb176750266a ("erofs: add file-backed mount support")
> 
> Signed-off-by: Hongzhen Luo <hongzhen@...ux.alibaba.com>

File-backed mounts should support < PAGE_SIZE sizes.
You should just fix these cases instead.

Thanks,
Gao Xiang