OVL_FH_WIRE_OFFSET
if (buflen <= OVL_FH_WIRE_OFFSET)
memcpy(fh->buf, fid, buflen - OVL_FH_WIRE_OFFSET);
fh = kzalloc(res + OVL_FH_WIRE_OFFSET, GFP_KERNEL);
fh = kzalloc(len + OVL_FH_WIRE_OFFSET, GFP_KERNEL);
#define OVL_FH_LEN(fh) (OVL_FH_WIRE_OFFSET + (fh)->fb.len)
#define OVL_FH_FID_OFFSET (OVL_FH_WIRE_OFFSET + \
return ovl_check_fb_len(&fh->fb, fh_len - OVL_FH_WIRE_OFFSET);