linux-kernel - Re: [PATCH 3/3] staging: erofs: xattr.c: avoid BUG

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Message-ID: <aa7660a6-b8a9-f22f-2616-f51c45dd52ac@huawei.com>
Date:   Tue, 13 Aug 2019 14:10:36 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     Gao Xiang <gaoxiang25@...wei.com>
CC:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        <devel@...verdev.osuosl.org>, <linux-fsdevel@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        <linux-erofs@...ts.ozlabs.org>, Chao Yu <chao@...nel.org>,
        Miao Xie <miaoxie@...wei.com>, <weidu.du@...wei.com>,
        "Fang Wei" <fangwei1@...wei.com>
Subject: Re: [PATCH 3/3] staging: erofs: xattr.c: avoid BUG_ON

Hi Xiang,

On 2019/8/13 11:57, Gao Xiang wrote:
> Hi Chao,
> 
> On Tue, Aug 13, 2019 at 11:20:22AM +0800, Chao Yu wrote:
>> On 2019/8/13 10:30, Gao Xiang wrote:
>>> Kill all the remaining BUG_ON in EROFS:
>>>  - one BUG_ON was used to detect xattr on-disk corruption,
>>>    proper error handling should be added for it instead;
>>>  - the other BUG_ONs are used to detect potential issues,
>>>    use DBG_BUGON only in (eng) debugging version.
>>
>> BTW, do we need add WARN_ON() into DBG_BUGON() to show some details function or
>> call stack in where we encounter the issue?
> 
> Thanks for kindly review :)
> 
> Agreed, it seems much better. If there are no other considerations
> here, I can submit another patch addressing it later or maybe we
> can change it in the next linux version since I'd like to focusing
> on moving out of staging for this round...

No problem, we can change it in a proper time.

Thanks,

> 
> Thanks,
> Gao Xiang
> 
>>
>>>
>>> Signed-off-by: Gao Xiang <gaoxiang25@...wei.com>
>>
>> Reviewed-by: Chao Yu <yuchao0@...wei.com>
>>
>> Thanks,
> .
>