Symbol: __BLK_TA_UNPLUG_IO
include/uapi/linux/blktrace_api.h
95
#define BLK_TA_UNPLUG_IO (__BLK_TA_UNPLUG_IO | BLK_TC_ACT(BLK_TC_QUEUE))
kernel/trace/blktrace.c
1723
[__BLK_TA_UNPLUG_IO] = {{ "U", "unplug_io" }, blk_log_unplug },