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()
493 	struct ctl_table_header *head = PROC_I(inode)->sysctl;  in grab_header()
557 	 * At this point we know that the sysctl was not unregistered  in proc_sys_call_handler()
624 	/* sysctl was unregistered */  in proc_sys_open()
644 	/* sysctl was unregistered */  in proc_sys_poll()
790 	 * sysctl entries that are not writeable,  in proc_sys_permission()
808 	else /* Use the permissions on the sysctl table entry */  in proc_sys_permission()
883 	return !PROC_I(d_inode(dentry))->sysctl->unregistering;  in proc_sys_revalidate()
888 	return !!PROC_I(d_inode(dentry))->sysctl->unregistering;  in proc_sys_delete()
922 	head = rcu_dereference(PROC_I(inode)->sysctl);  in proc_sys_compare()
1022 		pr_err("sysctl could not get directory: ");  in get_subdir()
1090 	pr_err("sysctl table check failed: %s/%s %pV\n",  in sysctl_err()
1263  * __register_sysctl_table - register a leaf sysctl table
1264  * @set: Sysctl tree to register on
1265  * @path: The path to the directory the sysctl table is in.
1268  * Register a sysctl table hierarchy. @table should be a filled in ctl_table
1273  * procname - the name of the sysctl file under /proc/sys. Set to %NULL to not
1274  *            enter a sysctl file
1288  * Leaf nodes in the sysctl tree will be represented by a single file
1372  * register_sysctl - register a sysctl table
1373  * @path: The path to the directory the sysctl table is in.
1376  * Register a sysctl table. @table should be a filled in ctl_table
1389  * __register_sysctl_init() - register sysctl table to path
1390  * @path: path name for sysctl base
1391  * @table: This is the sysctl table that needs to be registered to the path
1392  * @table_name: The name of sysctl table, only used for log printing when
1395  * The sysctl interface is used by userspace to query or modify at runtime
1403  * Context: Can only be called after your respective sysctl base path has been
1527  * __register_sysctl_paths - register a sysctl table hierarchy
1528  * @set: Sysctl tree to register on
1529  * @path: The path to the directory the sysctl table is in.
1532  * Register a sysctl table hierarchy. @table should be a filled in ctl_table
1599  * register_sysctl_table_path - register a sysctl table hierarchy
1600  * @path: The path to the directory the sysctl table is in.
1603  * Register a sysctl table hierarchy. @table should be a filled in ctl_table
1617  * register_sysctl_table - register a sysctl table hierarchy
1620  * Register a sysctl table hierarchy. @table should be a filled in ctl_table
1660 			pr_err("sysctl link missing during unregister: ");  in put_links()
1687  * unregister_sysctl_table - unregister a sysctl table hierarchy
1690  * Unregisters the sysctl table and all children. proc entries may not
1755  * Historically some settings had both sysctl and a command line parameter.
1756  * With the generic sysctl. parameter support, we can handle them at a single
1783 /* Set sysctl value passed on kernel command line. */
1796 	if (strncmp(param, "sysctl", sizeof("sysctl") - 1) == 0) {  in process_sysctl_arg()
1797 		param += sizeof("sysctl") - 1;  in process_sysctl_arg()
1816 	 * To set sysctl options, we use a temporary mount of proc, look up the  in process_sysctl_arg()
1818 	 * options were given, we mount it only when the first sysctl option is  in process_sysctl_arg()
1826 			pr_err("Failed to find procfs to set sysctl from command line\n");  in process_sysctl_arg()
1832 			pr_err("Failed to mount procfs to set sysctl from command line\n");  in process_sysctl_arg()
1846 			pr_err("Failed to set sysctl parameter '%s=%s': parameter not found\n",  in process_sysctl_arg()
1849 			pr_err("Failed to set sysctl parameter '%s=%s': permission denied (read-only?)\n",  in process_sysctl_arg()
1852 			pr_err("Error %pe opening proc file to set sysctl parameter '%s=%s'\n",  in process_sysctl_arg()
1860 			pr_err("Failed to set sysctl parameter '%s=%s': invalid value\n",  in process_sysctl_arg()
1863 			pr_err("Error %pe writing to proc file to set sysctl parameter '%s=%s'\n",  in process_sysctl_arg()
1866 		pr_err("Wrote only %zd bytes of %d writing to proc file %s to set sysctl parameter '%s=%s\n",  in process_sysctl_arg()
1872 		pr_err("Error %pe closing proc file to set sysctl parameter '%s=%s\n",  in process_sysctl_arg()
1888 	parse_args("Setting sysctl args", command_line,  in do_sysctl_args()