BLK_TC_SYNC 15 include/uapi/linux/blktrace_api.h BLK_TC_SYNCIO = BLK_TC_SYNC, BLK_TC_SYNC 1204 kernel/trace/blktrace.c if (tc & BLK_TC_SYNC) BLK_TC_SYNC 1718 kernel/trace/blktrace.c { BLK_TC_SYNC, "sync" },