Hi everyone,
I'm curious what would happen in btrfs if the following commands were
issued:
# cp file1 file2
# chown newuser:newgroup file2
Where file1 was owned by olduser:oldgroup.
If I understand copy-on-write correctly the "cp" would merely create a
new
pointer (or whatever it is called :( ) containing the files' metadata but the
file contents would not actually be duplicated.
Then the "chown" would change the metadata so that file2's metadata
indicates
newuser:newgroup owned the file contents. At the same time the metadata of
file1 would say that olduser:oldgroup owned the file contents.
(If a user modified the file contents, the contents would be copied at
that
time.)
Thanks, curious newbie,
C.
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