TRACE_SYSTEM_CP_FASTBOOT dTRACE_SYSTEM_CP_FASTBOOT ,fastboot Fastboot CP_FASTBOOT fastboot fastboot mode CP_FASTBOOT_MODE Opt_fastboot "dev = (%d,%d), ino = %lu, cp_reason: %s, datasync = %d, ret = %d", ((unsigned int) ((REC->dev) >> 20)), ((unsigned int) ((REC->dev) & ((1U << 20) - 1))), (unsigned long)REC->ino, __print_symbolic(REC->cp_reason, { CP_NO_NEEDED, "no needed" }, { CP_NON_REGULAR, "non regular" }, { CP_COMPRESSED, "compressed" }, { CP_HARDLINK, "hardlink" }, { CP_SB_NEED_CP, "sb needs cp" }, { CP_WRONG_PINO, "wrong pino" }, { CP_NO_SPC_ROLL, "no space roll forward" }, { CP_NODE_NEED_CP, "node needs cp" }, { CP_FASTBOOT_MODE, "fastboot mode" }, { CP_SPEC_LOG_NUM, "log type is 2" }, { CP_RECOVER_DIR, "dir needs recovery" }, { CP_XATTR_DIR, "dir's xattr updated" }), REC->datasync, REC->ret "dev = (%d,%d), checkpoint for %s, state = %s", ((unsigned int) ((REC->dev) >> 20)), ((unsigned int) ((REC->dev) & ((1U << 20) - 1))), __print_flags(REC->reason, "|", { 0x00000001, "Umount" }, { 0x00000002, "Fastboot" }, { 0x00000004, "Sync" }, { 0x00000008, "Recovery" }, { 0x00000010, "Discard" }, { 0x00000040, "Pause" }, { 0x00000020, "Trimmed" }, { 0x00000080, "Resize" }), __get_str(dest_msg)