Messages in this thread | | | Date | Tue, 25 Jul 2017 10:01:58 +0200 | From | Christoph Hellwig <> | Subject | Re: [PATCH v5 1/5] mm: add vm_insert_mixed_mkwrite() |
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On Tue, Jul 25, 2017 at 01:14:00AM +0300, Kirill A. Shutemov wrote: > I guess it's up to filesystem if it wants to reuse the same spot to write > data or not. I think your assumptions works for ext4 and xfs. I wouldn't > be that sure for btrfs or other filesystems with CoW support.
Or XFS with reflinks for that matter. Which currently can't be combined with DAX, but I had a somewhat working version a few month ago.
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