Re: [PATCH 1/2] Documentation: filesystems: cramfs: correct stale hard-link and endianness claims

[Jonathan Corbet]

Nicolas Pitre <nico@xxxxxxxxxxx> writes:

> Two paragraphs in cramfs.rst have been misleading for a long time:
>
>  - "Hard links are supported, but hard linked files will still have
>    a link count of 1": mkcramfs does not preserve hard links; it
>    deduplicates by content (eliminate_doubles()).  Two names for
>    the same on-disk inode in the source tree become two separate
>    (content-shared) entries in the image, and cramfs always reports
>    a link count of 1.
>
>  - "Currently, cramfs must be written and read with architectures of
>    the same endianness ... PAGE_SIZE == 4096 ... is a bug, but it
>    hasn't been decided what the best fix is": the endianness
>    situation has been settled for years -- the kernel checks for
>    CRAMFS_MAGIC_WEND in cramfs_fill_super() and refuses the mount,
>    and mkcramfs has gained -B / -L for producing images of the
>    opposite endianness from the build host (useful for cross-builds,
>    but the reader still needs to match).  Restate this accurately.
>
> Signed-off-by: Nicolas Pitre <nico@xxxxxxxxxxx>
> ---
>  Documentation/filesystems/cramfs.rst | 22 ++++++++++++++--------
>  1 file changed, 14 insertions(+), 8 deletions(-)

I've applied both patches, thanks.

jon