Messages in this thread | | | From | Jeff Moyer <> | Subject | Re: [PATCH V4 07/13] fs: Add locking for a dynamic address space operations state | Date | Tue, 25 Feb 2020 14:37:12 -0500 |
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Christoph Hellwig <hch@lst.de> writes:
> And my point is that if we ensure S_DAX can only be checked if there > are no blocks on the file, is is fairly easy to provide the same > guarantee. And I've not heard any argument that we really need more > flexibility than that. In fact I think just being able to change it > on the parent directory and inheriting the flag might be more than > plenty, which would lead to a very simple implementation without any > of the crazy overhead in this series.
I know of one user who had at least mentioned it to me, so I cc'd him. Jonathan, can you describe your use case for being able to change a file between dax and non-dax modes? Or, if I'm misremembering, just correct me?
Thanks! Jeff
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