Re: [PATCH 15/32] union-mount: Documentation
Date: Mon May 25 2009 - 02:26:52 EST
> +Rename across different levels of the union is implemented as a copy-up
> +operation for regular files. Rename of directories simply returns EXDEV, the
> +same as if we tried to rename across different mounts. Most applications have
> +to handle this case anyway. Some applications do not expect EXDEV on
> +rename operations within the same directory, but these applications will also
> +be broken with bind mounts.
Is renaming a regular file supported?
Accrding to the change in "[PATCH 24/32] union-mount: in-kernel file
copy between union mounted filesystems", every rename under union seems
to be rejected.
link(2) may be similar.
When a "fileA" exists in the lower fs only, link("fileA", "new_file")
will return EXDEV too.
J. R. Okajima
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/