Re: [PATCH v4] ext4: fix direct I/O read error

[姜迎]

Sorry，I will fix this error on 4.4 and 4.9，and then send a patch for 4.4 and 4.9，thanks！

发自我的iPhone

> 在 2020年8月6日，上午9:19，Sasha Levin <sashal@xxxxxxxxxx> 写道：
> 
> On Wed, Aug 05, 2020 at 10:51:07AM +0200, Jan Kara wrote:
>> Note to stable tree maintainers (summary from the rather long changelog):
>> This is a non-upstream patch. It will not go upstream because the problem
>> there has been fixed by converting ext4 to use iomap infrastructure.
>> However that change is out of scope for stable kernels and this is a
>> minimal fix for the problem that has hit real-world applications so I think
>> it would be worth it to include the fix in stable trees. Thanks.
> 
> How far back should it go? It breaks the build on 4.9 and 4.4 but the
> fix for the breakage is trivial.
> 
> It does however suggest that this fix wasn't tested on 4.9 or 4.4, so
> I'd like to clarify it here before fixing it up (or dropping it).
> 
> -- 
> Thanks,
> Sasha