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Subject: Re: Fwd: ubifs: fix page_count in ->ubifs_migrate_page()
To: Richard Weinberger <richard@nod.at>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
 Christoph Hellwig <hch@lst.de>, stable@vger.kernel.org,
 linux-mtd@lists.infradead.org
References: <1544624037-3436-1-git-send-email-openzhangj@gmail.com>
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From: zhangjun <openzhangj@gmail.com>
Message-ID: <c4f70535-63ba-4c4b-9e79-3ec48a406f52@gmail.com>
Date: Thu, 13 Dec 2018 20:10:19 +0800
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On 2018/12/13 下午4:30, Richard Weinberger wrote:
> Am Donnerstag, 13. Dezember 2018, 03:59:50 CET schrieb zhangjun:
>> hello
>>       I test several kernel version from your commit
>> 4ac1c17b2044a1b4b2fbed74451947e905fc2992,
>> there is a bug when migrateing,the following fix i test ok and require
>> your confirmation.
> Please keep the CC list intact and give us at least some time to review
> your patch.
> Also explain what kind of problem you're facing.
> In other words, is this a theoretical fix or not?
>
> Thanks,
> //richard

This's my first time to patch upstream,thank you very much for your 
suggestion.
My problem is my driver to call alloc_cma(),it fail.
But i find that memory and cma maxchunk is enougth.
So i building environmentto find what the reason is,test and verify my 
guess.
i think it not just a theoretical fix but i actually tested it.

thanks,
//zhangjun