6 #include <linux/sysctl.h>
170 			pr_err("sysctl duplicate entry: ");  in insert_entry()
406  * some sysctl variables are readonly even to root.
454 	ei->sysctl = head;  in proc_sys_make_inode()
495 	struct ctl_table_header *head = PROC_I(inode)->sysctl;  in grab_header()
559 	 * At this point we know that the sysctl was not unregistered  in proc_sys_call_handler()
626 	/* sysctl was unregistered */  in proc_sys_open()
646 	/* sysctl was unregistered */  in proc_sys_poll()
792 	 * sysctl entries that are not writeable,  in proc_sys_permission()
810 	else /* Use the permissions on the sysctl table entry */  in proc_sys_permission()
885 	return !PROC_I(d_inode(dentry))->sysctl->unregistering;  in proc_sys_revalidate()
890 	return !!PROC_I(d_inode(dentry))->sysctl->unregistering;  in proc_sys_delete()
924 	head = rcu_dereference(PROC_I(inode)->sysctl);  in proc_sys_compare()
1024 		pr_err("sysctl could not get directory: ");  in get_subdir()
1092 	pr_err("sysctl table check failed: %s/%s %pV\n",  in sysctl_err()
1265  * __register_sysctl_table - register a leaf sysctl table
1266  * @set: Sysctl tree to register on
1267  * @path: The path to the directory the sysctl table is in.
1270  * Register a sysctl table hierarchy. @table should be a filled in ctl_table
1275  * procname - the name of the sysctl file under /proc/sys. Set to %NULL to not
1276  *            enter a sysctl file
1290  * Leaf nodes in the sysctl tree will be represented by a single file
1374  * register_sysctl - register a sysctl table
1375  * @path: The path to the directory the sysctl table is in.
1378  * Register a sysctl table. @table should be a filled in ctl_table
1391  * __register_sysctl_init() - register sysctl table to path
1392  * @path: path name for sysctl base
1393  * @table: This is the sysctl table that needs to be registered to the path
1394  * @table_name: The name of sysctl table, only used for log printing when
1397  * The sysctl interface is used by userspace to query or modify at runtime
1405  * Context: Can only be called after your respective sysctl base path has been
1529  * __register_sysctl_paths - register a sysctl table hierarchy
1530  * @set: Sysctl tree to register on
1531  * @path: The path to the directory the sysctl table is in.
1534  * Register a sysctl table hierarchy. @table should be a filled in ctl_table
1601  * register_sysctl_table_path - register a sysctl table hierarchy
1602  * @path: The path to the directory the sysctl table is in.
1605  * Register a sysctl table hierarchy. @table should be a filled in ctl_table
1619  * register_sysctl_table - register a sysctl table hierarchy
1622  * Register a sysctl table hierarchy. @table should be a filled in ctl_table
1662 			pr_err("sysctl link missing during unregister: ");  in put_links()
1689  * unregister_sysctl_table - unregister a sysctl table hierarchy
1692  * Unregisters the sysctl table and all children. proc entries may not
1757  * Historically some settings had both sysctl and a command line parameter.
1758  * With the generic sysctl. parameter support, we can handle them at a single
1785 /* Set sysctl value passed on kernel command line. */
1798 	if (strncmp(param, "sysctl", sizeof("sysctl") - 1) == 0) {  in process_sysctl_arg()
1799 		param += sizeof("sysctl") - 1;  in process_sysctl_arg()
1818 	 * To set sysctl options, we use a temporary mount of proc, look up the  in process_sysctl_arg()
1820 	 * options were given, we mount it only when the first sysctl option is  in process_sysctl_arg()
1828 			pr_err("Failed to find procfs to set sysctl from command line\n");  in process_sysctl_arg()
1834 			pr_err("Failed to mount procfs to set sysctl from command line\n");  in process_sysctl_arg()
1848 			pr_err("Failed to set sysctl parameter '%s=%s': parameter not found\n",  in process_sysctl_arg()
1851 			pr_err("Failed to set sysctl parameter '%s=%s': permission denied (read-only?)\n",  in process_sysctl_arg()
1854 			pr_err("Error %pe opening proc file to set sysctl parameter '%s=%s'\n",  in process_sysctl_arg()
1862 			pr_err("Failed to set sysctl parameter '%s=%s': invalid value\n",  in process_sysctl_arg()
1865 			pr_err("Error %pe writing to proc file to set sysctl parameter '%s=%s'\n",  in process_sysctl_arg()
1868 		pr_err("Wrote only %zd bytes of %d writing to proc file %s to set sysctl parameter '%s=%s\n",  in process_sysctl_arg()
1874 		pr_err("Error %pe closing proc file to set sysctl parameter '%s=%s\n",  in process_sysctl_arg()
1890 	parse_args("Setting sysctl args", command_line,  in do_sysctl_args()