net/9p/trans_fd.c

File Facts

System

Linux kernel

Corpus path

net/9p/trans_fd.c

Extension

.c

Size

25954 bytes

Lines

1094

Domain

Networking Core

Bucket

Sockets, Protocols, Packet Path, And Network Policy

Inferred role

Networking Core: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• 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/in.h
• linux/in6.h
• linux/module.h
• linux/net.h
• linux/ipv6.h
• linux/kthread.h
• linux/errno.h
• linux/kernel.h
• linux/un.h
• linux/uaccess.h
• linux/inet.h
• linux/file.h
• linux/fs_context.h
• linux/slab.h
• linux/seq_file.h
• net/9p/9p.h
• net/9p/client.h
• net/9p/transport.h
• linux/syscalls.h

Detected Declarations

• struct p9_poll_wait
• struct p9_conn
• struct p9_trans_fd
• function p9_mux_poll_stop
• function p9_conn_cancel
• function list_for_each_entry_safe
• function list_for_each_entry_safe
• function p9_fd_poll
• function p9_fd_read
• function p9_read_work
• function packets
• function p9_fd_write
• function p9_write_work
• function p9_pollwake
• function p9_pollwait
• function p9_conn_create
• function p9_poll_mux
• function p9_fd_request
• function p9_fd_cancel
• function p9_fd_cancelled
• function p9_client_flush
• function p9_fd_show_options
• function p9_fd_open
• function p9_socket_open
• function p9_conn_destroy
• function p9_fd_close
• function p9_bind_privport
• function p9_fd_create_tcp
• function p9_fd_create_unix
• function p9_fd_create
• function p9_poll_workfn
• function p9_trans_fd_init
• function p9_trans_fd_exit
• module init p9_trans_fd_init

Annotated Snippet

module_init(p9_trans_fd_init);
module_exit(p9_trans_fd_exit);

MODULE_AUTHOR("Eric Van Hensbergen <ericvh@gmail.com>");
MODULE_DESCRIPTION("Filedescriptor Transport for 9P");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/in.h`, `linux/in6.h`, `linux/module.h`, `linux/net.h`, `linux/ipv6.h`, `linux/kthread.h`, `linux/errno.h`, `linux/kernel.h`.
• Detected declarations: `struct p9_poll_wait`, `struct p9_conn`, `struct p9_trans_fd`, `function p9_mux_poll_stop`, `function p9_conn_cancel`, `function list_for_each_entry_safe`, `function list_for_each_entry_safe`, `function p9_fd_poll`, `function p9_fd_read`, `function p9_read_work`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.