Messages in this thread | | | Date | Tue, 8 Oct 2019 23:31:44 -0700 | From | Christoph Hellwig <> | Subject | Re: [RFC PATCH 0/7] xfs: add reflink & dedupe support for fsdax. |
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Btw, I just had a chat with Dan last week on this. And he pointed out that while this series deals with the read/write path issues of reflink on DAX it doesn't deal with the mmap side issue that page->mapping and page->index can point back to exactly one file.
I think we want a few xfstests that reflink a file and then use the different links using mmap, as that should blow up pretty reliably.
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