io_uring/uring_cmd.h

File Facts

System

Linux kernel

Corpus path

io_uring/uring_cmd.h

Extension

.h

Size

815 bytes

Lines

27

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

• linux/io_uring/cmd.h
• linux/io_uring_types.h

Detected Declarations

• struct io_async_cmd

Annotated Snippet

struct io_async_cmd {
	struct iou_vec			vec;
	struct io_uring_sqe		sqes[2];
};

int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags);
int io_uring_cmd_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
void io_uring_cmd_sqe_copy(struct io_kiocb *req);
void io_uring_cmd_cleanup(struct io_kiocb *req);

bool io_uring_try_cancel_uring_cmd(struct io_ring_ctx *ctx,
				   struct io_uring_task *tctx, bool cancel_all);

bool io_uring_cmd_post_mshot_cqe32(struct io_uring_cmd *cmd,
				   unsigned int issue_flags,
				   struct io_uring_cqe cqe[2]);

void io_cmd_cache_free(const void *entry);

int io_cmd_poll_multishot(struct io_uring_cmd *cmd,
			  unsigned int issue_flags, __poll_t mask);

Annotation

• Immediate include surface: `linux/io_uring/cmd.h`, `linux/io_uring_types.h`.
• Detected declarations: `struct io_async_cmd`.
• 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.