On Tue, 8 Dec 2020, 9:30 pm Qiyu Yan, <yanqiyu@xxxxxxxxxxxxxxxxx> wrote:
Since swapfile should always be NOCOW, while doing snapshot the subvol
containing the file will definitely make it COW. You may want to put
swapfile to a separate subvol.
How would you verify if a file is CoW in BTRFS?
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