could juicefs fuse driver support FICLONE and FICLONERANGE ?

[zig]

This would allow to do something like "cp --reflink=always" which would be really sweet :)

[zig]

Answering to myself : I just realized we don't need --reflink=aways because juicefs supports copy_file_range , so a simple cp with no option will already not duplicate data.

It's possible to verify that two identical files don't have their data duplicated with the juicefs info command.

That being said, the semantic of cp --reflink=always has the advantage of failing if it cannot do COW, in some case where you want to be sure no actual copy is taking place, it is useful.

[zhijian-pro]

There is no plan at the moment.
ref #1832