include/net/9p/transport.h

File Facts

System

Linux kernel

Corpus path

include/net/9p/transport.h

Extension

.h

Size

3171 bytes

Lines

81

Domain

Networking Core

Bucket

Sockets, Protocols, Packet Path, And Network Policy

Inferred role

Networking Core: implementation source

Status

source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

• Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h

Detected Declarations

• struct p9_trans_module

Annotated Snippet

struct p9_trans_module {
	struct list_head list;
	char *name;		/* name of transport */
	int maxsize;		/* max message size of transport */
	bool pooled_rbuffers;
	bool def;		/* this transport should be default */
	bool supports_vmalloc;	/* can work with vmalloc'd buffers */
	struct module *owner;
	int (*create)(struct p9_client *client,
		      struct fs_context *fc);
	void (*close)(struct p9_client *client);
	int (*request)(struct p9_client *client, struct p9_req_t *req);
	int (*cancel)(struct p9_client *client, struct p9_req_t *req);
	int (*cancelled)(struct p9_client *client, struct p9_req_t *req);
	int (*zc_request)(struct p9_client *client, struct p9_req_t *req,
			  struct iov_iter *uidata, struct iov_iter *uodata,
			  int inlen, int outlen, int in_hdr_len);
	int (*show_options)(struct seq_file *m, struct p9_client *client);
};

void v9fs_register_trans(struct p9_trans_module *m);
void v9fs_unregister_trans(struct p9_trans_module *m);
struct p9_trans_module *v9fs_get_trans_by_name(const char *s);
struct p9_trans_module *v9fs_get_default_trans(void);
void v9fs_put_trans(struct p9_trans_module *m);

#define MODULE_ALIAS_9P(transport) \
	MODULE_ALIAS("9p-" transport)

#endif /* NET_9P_TRANSPORT_H */

Annotation

• Immediate include surface: `linux/module.h`.
• Detected declarations: `struct p9_trans_module`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• 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.