io_uring/waitid.h

File Facts

System

Linux kernel

Corpus path

io_uring/waitid.h

Extension

.h

Size

486 bytes

Lines

16

Domain

Kernel Services

Bucket

io_uring

Inferred role

Kernel Services: implementation source

Status

source implementation candidate

Why This File Exists

Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.

• Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• ../kernel/exit.h

Detected Declarations

• struct io_waitid_async

Annotated Snippet

struct io_waitid_async {
	struct io_kiocb *req;
	struct wait_opts wo;
};

int io_waitid_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_waitid(struct io_kiocb *req, unsigned int issue_flags);
int io_waitid_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd,
		     unsigned int issue_flags);
bool io_waitid_remove_all(struct io_ring_ctx *ctx, struct io_uring_task *tctx,
			  bool cancel_all);

Annotation

• Immediate include surface: `../kernel/exit.h`.
• Detected declarations: `struct io_waitid_async`.
• Atlas domain: Kernel Services / io_uring.
• Implementation status: source 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.