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commitd66cde50c3upstream. Change type of pcchunk->Length from u32 to u64 to match smb2_copychunk_range arguments type. Fixes the problem where performing server-side copy with CIFS_IOC_COPYCHUNK_FILE ioctl resulted in incomplete copy of large files while returning -EINVAL. Fixes:9bf0c9cd43("CIFS: Fix SMB2/SMB3 Copy offload support (refcopy) for large files") Cc: <stable@vger.kernel.org> Signed-off-by: Pawel Witek <pawel.ireneusz.witek@gmail.com> Signed-off-by: Steve French <stfrench@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>