cregit-Linux how code gets into the kernel

Release 4.12 include/linux/kobject_ns.h

Directory: include/linux
/* Kernel object name space definitions
 * Copyright (c) 2002-2003 Patrick Mochel
 * Copyright (c) 2002-2003 Open Source Development Labs
 * Copyright (c) 2006-2008 Greg Kroah-Hartman <>
 * Copyright (c) 2006-2008 Novell Inc.
 * Split from kobject.h by David Howells (
 * This file is released under the GPLv2.
 * Please read Documentation/kobject.txt before using the kobject
 * interface, ESPECIALLY the parts about reference counts and object
 * destructors.



struct sock;
struct kobject;

 * Namespace types which are used to tag kobjects and sysfs entries.
 * Network namespace will likely be the first.

enum kobj_ns_type {

 * Callbacks so sysfs can determine namespaces
 *   @grab_current_ns: return a new reference to calling task's namespace
 *   @netlink_ns: return namespace to which a sock belongs (right?)
 *   @initial_ns: return the initial namespace (i.e. init_net_ns)
 *   @drop_ns: drops a reference to namespace

struct kobj_ns_type_operations {
enum kobj_ns_type type;
bool (*current_may_mount)(void);
void *(*grab_current_ns)(void);
const void *(*netlink_ns)(struct sock *sk);
const void *(*initial_ns)(void);
void (*drop_ns)(void *);

int kobj_ns_type_register(const struct kobj_ns_type_operations *ops);
int kobj_ns_type_registered(enum kobj_ns_type type);
const struct kobj_ns_type_operations *kobj_child_ns_ops(struct kobject *parent);
const struct kobj_ns_type_operations *kobj_ns_ops(struct kobject *kobj);

bool kobj_ns_current_may_mount(enum kobj_ns_type type);
void *kobj_ns_grab_current(enum kobj_ns_type type);
const void *kobj_ns_netlink(enum kobj_ns_type type, struct sock *sk);
const void *kobj_ns_initial(enum kobj_ns_type type);
void kobj_ns_drop(enum kobj_ns_type type, void *ns);

#endif /* _LINUX_KOBJECT_NS_H */

Overall Contributors

David Howells15883.60%133.33%
Eric W. Biedermann178.99%133.33%
Al Viro147.41%133.33%
Directory: include/linux
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