scripts/coccinelle/api/stream_open.cocci

File Facts

System

Linux kernel

Corpus path

scripts/coccinelle/api/stream_open.cocci

Extension

.cocci

Size

7855 bytes

Lines

370

Domain

Support Tooling And Documentation

Bucket

scripts

Inferred role

Support Tooling And Documentation: operation-table or driver-model contract

Status

pattern implementation candidate

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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• function readstream
• function writestream
• function block_f
• function readstream
• function readstream
• function readstream
• function openfunc
• function openfunc
• function openfunc
• function openfunc
• function openfunc
• function openfunc
• function openfunc
• function openfunc
• function openfunc
• function openfunc

Annotated Snippet

struct file_operations fops = {
    ...
  };

@ has_read @
identifier fops0.fops;
identifier read_f;
@@
  struct file_operations fops = {
    .read = read_f,
  };

@ has_read_iter @
identifier fops0.fops;
identifier read_iter_f;
@@
  struct file_operations fops = {
    .read_iter = read_iter_f,
  };

@ has_write @
identifier fops0.fops;
identifier write_f;
@@
  struct file_operations fops = {
    .write = write_f,
  };

@ has_write_iter @
identifier fops0.fops;
identifier write_iter_f;
@@
  struct file_operations fops = {
    .write_iter = write_iter_f,
  };

@ has_llseek @
identifier fops0.fops;
identifier llseek_f;
@@
  struct file_operations fops = {
    .llseek = llseek_f,
  };

@ has_no_llseek @
identifier fops0.fops;
@@
  struct file_operations fops = {
  };

@ has_noop_llseek @
identifier fops0.fops;
@@
  struct file_operations fops = {
    .llseek = noop_llseek,
  };

@ has_mmap @
identifier fops0.fops;
identifier mmap_f;
@@
  struct file_operations fops = {
    .mmap = mmap_f,
  };

@ has_copy_file_range @
identifier fops0.fops;
identifier copy_file_range_f;
@@
  struct file_operations fops = {

Annotation

• Detected declarations: `function readstream`, `function writestream`, `function block_f`, `function readstream`, `function readstream`, `function readstream`, `function openfunc`, `function openfunc`, `function openfunc`, `function openfunc`.
• Atlas domain: Support Tooling And Documentation / scripts.
• Implementation status: pattern implementation candidate.

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.