Is there a recommended way to replace a corrupted file or directory on
btrfs? The use case I''m thinking of is handling filesystem corruption
by restoring only the corrupted files from backup. For a corrupted
file, it seems like deleting the file and replacing it with the copy
from the backup works, but I don''t know if this is necessarily the
best way - the nature of copy-on-write means that there''s still
corrupt data lying around on the filesystem, right? And for
directories, it''s tricky, because (afaik) there''s no way to
delete a
directory without first walking it; not good if it''s corrupted.
I think this is probably also relevant to something like Ceph or CRFS,
where redundancy exists, but isn''t managed by btrfs directly.
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