include/net/aligned_data.h

File Facts

System

Linux kernel

Corpus path

include/net/aligned_data.h

Extension

.h

Size

682 bytes

Lines

23

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/atomic.h
• linux/types.h

Detected Declarations

• struct net_aligned_data

Annotated Snippet

struct net_aligned_data {
	atomic64_t	net_cookie ____cacheline_aligned_in_smp;
#if defined(CONFIG_INET)
	atomic_long_t tcp_memory_allocated ____cacheline_aligned_in_smp;
	atomic_long_t udp_memory_allocated ____cacheline_aligned_in_smp;
#endif
};

extern struct net_aligned_data net_aligned_data;

#endif /* _NET_ALIGNED_DATA_H */

Annotation

• Immediate include surface: `linux/atomic.h`, `linux/types.h`.
• Detected declarations: `struct net_aligned_data`.
• 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.