linux-kernel - Re: [PATCH] erofs: fix fsdax partition offset handling

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Message-ID: <d424369b-c559-bf63-bbb3-71886f1799c9@kernel.org>
Date:   Mon, 24 Jan 2022 15:11:35 +0800
From:   Chao Yu <chao@...nel.org>
To:     Gao Xiang <hsiangkao@...ux.alibaba.com>,
        linux-erofs@...ts.ozlabs.org, Christoph Hellwig <hch@....de>
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] erofs: fix fsdax partition offset handling

On 2022/1/13 13:18, Gao Xiang wrote:
> After seeking time on testing today upstream fsdax, I found it
> actually doesn't work well as below:
> 
> [  186.492983] ------------[ cut here ]------------
> [  186.493629] WARNING: CPU: 1 PID: 205 at fs/iomap/iter.c:33 iomap_iter+0x2f6/0x310
> 
> The problem is that m_dax_part_off should be applied to physical
> addresses and very sorry about that I didn't catch this eariler.
> 
> Anyway, let's fix it up now. Also, I need to find a way to set up
> a standalone testcase to look after this later.
> 
> Fixes: de2051147771 ("fsdax: shift partition offset handling into the file systems")
> Signed-off-by: Gao Xiang <hsiangkao@...ux.alibaba.com>

Reviewed-by: Chao Yu <chao@...nel.org>

Thanks,