cp: --reflink=never

[Adam Borowski]

Hi!
I see requests for cp --reflink=auto as the default happening a lot on the
mailing list.  But, assuming there is a reason to ever want a heavy-weight
copy[1], people might want to disable reflinking.  This applies regardless
of what's the default: aliases or wrappers can be used for personal
preferences.

Thus, if there's alias cp='cp --reflink=auto', there's no obvious way to
skip it.

Here's a patch that implements --reflink=never, useful to override an
earlier argument.


Meow!

[1]. As a btrfs mailing list regular and occassional kernel/-progs
contributor, I can't even think of any; nocow files are already handled.
-- 
⢀⣴⠾⠻⢶⣦⠀ There's an easy way to tell toy operating systems from real ones.
⣾⠁⢰⠒⠀⣿⡁ Just look at how their shipped fonts display U+1F52B, this makes
⢿⡄⠘⠷⠚⠋⠀ the intended audience obvious.  It's also interesting to see OSes
⠈⠳⣄⠀⠀⠀⠀ go back and forth wrt their intended target.

0001-cp-reflink-never-to-force-no-reflink-mode.patch
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