net/sched/sch_codel.c

File Facts

System

Linux kernel

Corpus path

net/sched/sch_codel.c

Extension

.c

Size

7919 bytes

Lines

325

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/slab.h
• linux/types.h
• linux/kernel.h
• linux/errno.h
• linux/skbuff.h
• linux/prefetch.h
• net/pkt_sched.h
• net/codel.h
• net/codel_impl.h
• net/codel_qdisc.h

Detected Declarations

• struct codel_sched_data
• function drop_func
• function codel_dequeue_drop
• function codel_qdisc_enqueue
• function codel_change
• function codel_init
• function codel_dump
• function codel_dump_stats
• function codel_reset
• function codel_module_init
• function codel_module_exit
• module init codel_module_init

Annotated Snippet

module_init(codel_module_init)
module_exit(codel_module_exit)

MODULE_DESCRIPTION("Controlled Delay queue discipline");
MODULE_AUTHOR("Dave Taht");
MODULE_AUTHOR("Eric Dumazet");
MODULE_LICENSE("Dual BSD/GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/slab.h`, `linux/types.h`, `linux/kernel.h`, `linux/errno.h`, `linux/skbuff.h`, `linux/prefetch.h`, `net/pkt_sched.h`.
• Detected declarations: `struct codel_sched_data`, `function drop_func`, `function codel_dequeue_drop`, `function codel_qdisc_enqueue`, `function codel_change`, `function codel_init`, `function codel_dump`, `function codel_dump_stats`, `function codel_reset`, `function codel_module_init`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• Implementation status: integration 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.