fs/sysctls.c

Source file repositories/reference/linux-study-clean/fs/sysctls.c

File Facts

System
Linux kernel
Corpus path
fs/sysctls.c
Extension
.c
Size
790 bytes
Lines
38
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.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * /proc/sys/fs shared sysctls
 *
 * These sysctls are shared between different filesystems.
 */
#include <linux/init.h>
#include <linux/sysctl.h>

static const struct ctl_table fs_shared_sysctls[] = {
	{
		.procname	= "overflowuid",
		.data		= &fs_overflowuid,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= SYSCTL_ZERO,
		.extra2		= SYSCTL_MAXOLDUID,
	},
	{
		.procname	= "overflowgid",
		.data		= &fs_overflowgid,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_minmax,
		.extra1		= SYSCTL_ZERO,
		.extra2		= SYSCTL_MAXOLDUID,
	},
};

static int __init init_fs_sysctls(void)
{
	register_sysctl_init("fs", fs_shared_sysctls);
	return 0;
}

early_initcall(init_fs_sysctls);

Annotation

Implementation Notes