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Subject: Re: [PATCH] ext4: start to support iopoll method
To:     "Theodore Y. Ts'o" <tytso@mit.edu>
Cc:     linux-ext4@vger.kernel.org, jack@suse.cz,
        joseph qi <joseph.qi@linux.alibaba.com>
References: <20200207120758.2411-1-xiaoguang.wang@linux.alibaba.com>
 <c535d8f5-e746-30dc-f3e8-aeed04fcb5b8@linux.alibaba.com>
 <20200302191604.GD6826@mit.edu>
From:   Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Message-ID: <22af3309-cccf-57a8-af35-32c9e5fa06ca@linux.alibaba.com>
Date:   Wed, 4 Mar 2020 21:40:54 +0800
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hi,

Sorry for being late.
> On Mon, Mar 02, 2020 at 05:17:09PM +0800, Xiaoguang Wang wrote:
>> hi,
>>
>> Ted, could you please consider applying this patch? Iouring polling
>> tests in ext4 needs this patch, Jan Kara has nicely reviewed this patch, thanks.
> 
> Yeah, I had been waiting to make sure the fix: "io_uring: fix
> poll_list race for SETUP_IOPOLL|SETUP_SQPOLL" was going to land.
I confirmed that it had been merged into mainline.

> 
> Am I correct that the bug fixed in the above fix isn't going to impact
> xfstests (since it looks like there are no fio runs with the io_uring
> engine at the moment)?
Yes, I have run xfstests with "-g auto", with or without this patch, there always
are six same failed test cases, so I think it won't impact current xfstests, thanks.

Regards,
Xiaoguang Wang
> 
> 						- Ted
>