fs/jffs2/ioctl.c

File Facts

System

Linux kernel

Corpus path

fs/jffs2/ioctl.c

Extension

.c

Size

557 bytes

Lines

23

Domain

Core OS

Bucket

VFS And Filesystem Core

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/fs.h
• nodelist.h

Detected Declarations

• function jffs2_ioctl

Annotated Snippet

#include <linux/fs.h>
#include "nodelist.h"

long jffs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
	/* Later, this will provide for lsattr.jffs2 and chattr.jffs2, which
	   will include compression support etc. */
	return -ENOTTY;
}

Annotation

• Immediate include surface: `linux/fs.h`, `nodelist.h`.
• Detected declarations: `function jffs2_ioctl`.
• Atlas domain: Core OS / VFS And Filesystem Core.
• Implementation status: source 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.