drbd_disable_sendpage 88 drivers/block/drbd/drbd_main.c static bool drbd_disable_sendpage; drbd_disable_sendpage 91 drivers/block/drbd/drbd_main.c module_param_named(disable_sendpage, drbd_disable_sendpage, bool, 0644); drbd_disable_sendpage 1555 drivers/block/drbd/drbd_main.c if (drbd_disable_sendpage || (page_count(page) < 1) || PageSlab(page))