Re: [PATCH] erofs: fix fsdax partition offset handling

From: Chao Yu
Date: Mon Jan 24 2022 - 02:11:49 EST


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@xxxxxxxxxxxxxxxxx>

Reviewed-by: Chao Yu <chao@xxxxxxxxxx>

Thanks,