ksmbd: support file compression attributes

Advertise file compression support and keep the compression state in the
per-file DOS attributes when the backing filesystem cannot apply the
compression flag directly.  FSCTL_SET_COMPRESSION should still update the
state returned by FSCTL_GET_COMPRESSION and file compression information in
that case.

When a new object is created under a compressed directory, inherit the
compression attribute from the parent.  If FILE_NO_COMPRESSION is
specified, clear the compression state after creation and let it override
inheritance for both files and directories.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

0 files changed, 0 insertions, 0 deletions