ngx_http_upstream_keepalive   75 src/http/modules/ngx_http_upstream_keepalive_module.c static char *ngx_http_upstream_keepalive(ngx_conf_t *cf, ngx_command_t *cmd,
ngx_http_upstream_keepalive   83 src/http/modules/ngx_http_upstream_keepalive_module.c       ngx_http_upstream_keepalive,