A possible fix for JDK-8165852: Mount point not found for a file which is present in overlayfs

[Fridrich Strba]

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On 27/09/17 16:50, Brian Burkhalter wrote:
> Hello, Fridrich,
> 
> Excellent! This would be good if it works albeit inelegantly: function over form. I’ll add it to my list to review. To test it I will need to dust off my Linux VM which has all this stuff (Docker, btrfs, etc.) installed.
> 
> Thanks,
> 
> Brian
> 
> On Sep 27, 2017, at 5:31 AM, Fridrich Strba <fridrich.strba at suse.com> wrote:
> 
>> Hello, good people,
>>
>> I think I fixed the overlayfs and btrfs problems in LinuxFileStore. The
>> attached patch is what makes it work for us. Basically, when we come to
>> the device-id boundary, we check whether it corresponds to a mount point
>> in the files and if so, we return. If not, we go down the file system
>> looking for another boundary. If we come to the root of the file-system
>> without finding other mount-point and if the / is in the files, we
>> return the entry that corresponds to it. If not, we throw the exception.
>>
>> It is not elegant, but it works. I would love to have someone to look at
>> it and consider whether it could be up-streamed.
>>
>> Thanks in advance
>>
>> Fridrich
>>
>>
>> <java-10-openjdk-linuxfilestore.patch>
> 
> 


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