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kobject: Break the kobject namespace defs into their own header

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Break the kobject namespace defs into their own header to avoid a header file
inclusion ordering problem between linux/sysfs.h and linux/kobject.h.

This fixes the build breakage on older versions of gcc.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
David Howells 2010-08-11 15:01:02 +01:00 • committed by Greg Kroah-Hartman
parent 9ee47476d6
commit 8488a38f4d
3 changed files with 58 additions and 34 deletions
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35
include/linux/kobject.h
View file

@ -22,6 +22,7 @@
#include <linux/compiler.h>
#include <linux/spinlock.h>
#include <linux/kref.h>
#include <linux/kobject_ns.h>
#include <linux/kernel.h>
#include <linux/wait.h>
#include <asm/atomic.h>
@ -136,42 +137,8 @@ struct kobj_attribute {
extern const struct sysfs_ops kobj_sysfs_ops;
/*
* Namespace types which are used to tag kobjects and sysfs entries.
* Network namespace will likely be the first.
*/
enum kobj_ns_type {
KOBJ_NS_TYPE_NONE = 0,
KOBJ_NS_TYPE_NET,
KOBJ_NS_TYPES
};
struct sock;
/*
* Callbacks so sysfs can determine namespaces
* @current_ns: return 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)
*/
struct kobj_ns_type_operations {
enum kobj_ns_type type;
const void *(*current_ns)(void);
const void *(*netlink_ns)(struct sock *sk);
const void *(*initial_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);
const void *kobj_ns_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_exit(enum kobj_ns_type type, const void *ns);
/**
* struct kset - a set of kobjects of a specific type, belonging to a specific subsystem.
*