Documentation/ABI/stable/sysfs-devices-node

Source file repositories/reference/linux-study-clean/Documentation/ABI/stable/sysfs-devices-node

File Facts

System: Linux kernel
Corpus path: Documentation/ABI/stable/sysfs-devices-node
Extension: [no extension]
Size: 8149 bytes
Lines: 239
Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: Documentation
Status: atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

What:		/sys/devices/system/node/possible
Date:		October 2002
Contact:	Linux Memory Management list <linux-mm@kvack.org>
Description:
		Nodes that could be possibly become online at some point.

What:		/sys/devices/system/node/online
Date:		October 2002
Contact:	Linux Memory Management list <linux-mm@kvack.org>
Description:
		Nodes that are online.

What:		/sys/devices/system/node/has_normal_memory
Date:		October 2002
Contact:	Linux Memory Management list <linux-mm@kvack.org>
Description:
		Nodes that have regular memory.

What:		/sys/devices/system/node/has_cpu
Date:		October 2002
Contact:	Linux Memory Management list <linux-mm@kvack.org>
Description:
		Nodes that have one or more CPUs.

What:		/sys/devices/system/node/has_high_memory
Date:		October 2002
Contact:	Linux Memory Management list <linux-mm@kvack.org>
Description:
		Nodes that have regular or high memory.
		Depends on CONFIG_HIGHMEM.

What:		/sys/devices/system/node/nodeX
Date:		October 2002
Contact:	Linux Memory Management list <linux-mm@kvack.org>
Description:
		When CONFIG_NUMA is enabled, this is a directory containing
		information on node X such as what CPUs are local to the
		node. Each file is detailed next.

What:		/sys/devices/system/node/nodeX/cpumap
Date:		October 2002
Contact:	Linux Memory Management list <linux-mm@kvack.org>
Description:
		The node's cpumap.

What:		/sys/devices/system/node/nodeX/cpulist
Date:		October 2002
Contact:	Linux Memory Management list <linux-mm@kvack.org>
Description:
		The CPUs associated to the node.

What:		/sys/devices/system/node/nodeX/meminfo
Date:		October 2002
Contact:	Linux Memory Management list <linux-mm@kvack.org>
Description:
		Provides information about the node's distribution and memory
		utilization. Similar to /proc/meminfo, see Documentation/filesystems/proc.rst

What:		/sys/devices/system/node/nodeX/numastat
Date:		October 2002
Contact:	Linux Memory Management list <linux-mm@kvack.org>
Description:
		The node's hit/miss statistics, in units of pages.
		See Documentation/admin-guide/numastat.rst

What:		/sys/devices/system/node/nodeX/distance
Date:		October 2002
Contact:	Linux Memory Management list <linux-mm@kvack.org>
Description:
		Distance between the node and all the other nodes

Annotation

Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

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.