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.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
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
- Atlas domain: Support Tooling And Documentation / tools.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.