include/linux/syscall_user_dispatch.h

File Facts

System

Linux kernel

Corpus path

include/linux/syscall_user_dispatch.h

Extension

.h

Size

1342 bytes

Lines

52

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: syscall or user/kernel boundary

Status

core 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 participates in a user/kernel boundary; inspect argument validation, copy_from_user/copy_to_user, credentials, and dispatch target.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/thread_info.h
• linux/syscall_user_dispatch_types.h

Detected Declarations

• function set_syscall_user_dispatch
• function clear_syscall_work_syscall_user_dispatch
• function syscall_user_dispatch_set_config

Annotated Snippet

#ifndef _SYSCALL_USER_DISPATCH_H
#define _SYSCALL_USER_DISPATCH_H

#include <linux/thread_info.h>
#include <linux/syscall_user_dispatch_types.h>

#ifdef CONFIG_GENERIC_ENTRY

int set_syscall_user_dispatch(unsigned long mode, unsigned long offset,
			      unsigned long len, char __user *selector);

#define clear_syscall_work_syscall_user_dispatch(tsk) \
	clear_task_syscall_work(tsk, SYSCALL_USER_DISPATCH)

int syscall_user_dispatch_get_config(struct task_struct *task, unsigned long size,
				     void __user *data);

int syscall_user_dispatch_set_config(struct task_struct *task, unsigned long size,
				     void __user *data);

#else

static inline int set_syscall_user_dispatch(unsigned long mode, unsigned long offset,
					    unsigned long len, char __user *selector)
{
	return -EINVAL;
}

static inline void clear_syscall_work_syscall_user_dispatch(struct task_struct *tsk)
{
}

static inline int syscall_user_dispatch_get_config(struct task_struct *task,
						   unsigned long size, void __user *data)
{
	return -EINVAL;
}

static inline int syscall_user_dispatch_set_config(struct task_struct *task,
						   unsigned long size, void __user *data)
{
	return -EINVAL;
}

#endif /* CONFIG_GENERIC_ENTRY */

#endif /* _SYSCALL_USER_DISPATCH_H */

Annotation

• Immediate include surface: `linux/thread_info.h`, `linux/syscall_user_dispatch_types.h`.
• Detected declarations: `function set_syscall_user_dispatch`, `function clear_syscall_work_syscall_user_dispatch`, `function syscall_user_dispatch_set_config`.
• Atlas domain: Core OS / Core Kernel Interface.
• Implementation status: core 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.