blp               204 http/ngx_http_busy_lock.c     ngx_http_busy_lock_t  *bl, **blp;
blp               206 http/ngx_http_busy_lock.c     blp = (ngx_http_busy_lock_t **) (p + cmd->offset);
blp               207 http/ngx_http_busy_lock.c     if (*blp) {
blp               216 http/ngx_http_busy_lock.c     *blp = bl;