__BLK_TA_UNPLUG_IO 82 include/uapi/linux/blktrace_api.h #define BLK_TA_UNPLUG_IO (__BLK_TA_UNPLUG_IO | BLK_TC_ACT(BLK_TC_QUEUE)) __BLK_TA_UNPLUG_IO 1496 kernel/trace/blktrace.c [__BLK_TA_UNPLUG_IO] = {{ "U", "unplug_io" }, blk_log_unplug },