tools/testing/selftests/ublk/trace/seq_io.bt

Source file repositories/reference/linux-study-clean/tools/testing/selftests/ublk/trace/seq_io.bt

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/ublk/trace/seq_io.bt
Extension
.bt
Size
1384 bytes
Lines
54
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: tools
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

if (@complete_seq == 0) {
			@complete_seq = $expected;
		}
		if ($expected != @complete_seq) {
			printf("out_of_order: sector %llu started at seq %llu but completed at seq %llu\n",
				args.sector, $expected, @complete_seq);
			@out_of_order = @out_of_order + 1;
		}
		delete(@start_order[args.sector]);
		@complete_seq = @complete_seq + 1;
	}
}

tracepoint:block:block_io_start
/(int64)args.dev == $1 && !strncmp(args.rwbs, str($2), $3)/
{
	@start_order[args.sector] = @start_seq;
	@start_seq = @start_seq + 1;
}

END {
	printf("total_start: %llu total_complete: %llu out_of_order: %llu\n",
		@start_seq - 1, @complete_seq, @out_of_order);
	clear(@start_order);
	clear(@start_seq);
	clear(@complete_seq);
	clear(@out_of_order);
}

Annotation

Implementation Notes