Re: [PATCH v4 0/4] fat: add support for the renameat2 RENAME_EXCHANGE flag

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Javier Martinez Canillas <javierm@xxxxxxxxxx> writes:

> Hello OGAWA,
>
> On 6/1/22 19:32, Javier Martinez Canillas wrote:
>> Hello,
>> 
>> The series adds support for the renameat2 system call RENAME_EXCHANGE flag
>> (which allows to atomically replace two paths) to the vfat filesystem code.
>> 
>> There are many use cases for this, but we are particularly interested in
>> making possible for vfat filesystems to be part of OSTree [0] deployments.
>> 
>> Currently OSTree relies on symbolic links to make the deployment updates
>> an atomic transactional operation. But RENAME_EXCHANGE could be used [1]
>> to achieve a similar level of robustness when using a vfat filesystem.
>> 
>> Patch #1 is just a preparatory patch to introduce the RENAME_EXCHANGE
>> support, patch #2 moves some code blocks in vfat_rename() to a set of
>> helper functions, that can be reused by tvfat_rename_exchange() that's
>> added by patch #3 and finally patch #4 adds some kselftests to test it.
>> 
>
> I think that addressed all the issues you pointed out in v3, please let me
> know if there's anything else that is needed for this patch series.
>
> Would these be merged by you or should I ping someone else? I'm not
> that familiar with how filesystem patches make into the mainline tree.

Sorry, it is just the my issue. I was traveling latest week, so is not
reviewing yet. I'll do soon.

Thanks.
-- 
OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>



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