net/8021q/vlanproc.c

File Facts

System

Linux kernel

Corpus path

net/8021q/vlanproc.c

Extension

.c

Size

7650 bytes

Lines

282

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/errno.h
• linux/kernel.h
• linux/string.h
• linux/proc_fs.h
• linux/seq_file.h
• linux/fs.h
• linux/netdevice.h
• linux/if_vlan.h
• net/net_namespace.h
• net/netns/generic.h
• vlanproc.h
• vlan.h

Detected Declarations

• function vlan_proc_cleanup
• function vlan_proc_init
• function vlan_proc_add_dev
• function vlan_proc_rem_dev
• function for_each_netdev_dump
• function vlan_seq_stop
• function vlan_seq_show
• function vlandev_seq_show

Annotated Snippet

while (mp) {
			u16 vlan_qos = READ_ONCE(mp->vlan_qos);

			seq_printf(seq, "%u:%d ",
				   mp->priority, ((vlan_qos >> 13) & 0x7));
			mp = rcu_dereference(mp->next);
		}
	}
	rcu_read_unlock();
	seq_puts(seq, "\n");

	return 0;
}

Annotation

• Immediate include surface: `linux/module.h`, `linux/errno.h`, `linux/kernel.h`, `linux/string.h`, `linux/proc_fs.h`, `linux/seq_file.h`, `linux/fs.h`, `linux/netdevice.h`.
• Detected declarations: `function vlan_proc_cleanup`, `function vlan_proc_init`, `function vlan_proc_add_dev`, `function vlan_proc_rem_dev`, `function for_each_netdev_dump`, `function vlan_seq_stop`, `function vlan_seq_show`, `function vlandev_seq_show`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• Implementation status: source 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.