mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
213dd266d4
While working on unshare support for the network namespace I noticed we were putting clone flags in an int. Which is weird because the syscall uses unsigned long and we at least need an unsigned to properly hold all of the unshare flags. So to make the code consistent, this patch updates the code to use unsigned long instead of int for the clone flags in those places where we get it wrong today. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Cedric Le Goater <clg@fr.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
42 lines
828 B
C
42 lines
828 B
C
#ifndef _NAMESPACE_H_
|
|
#define _NAMESPACE_H_
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/mount.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/nsproxy.h>
|
|
|
|
struct mnt_namespace {
|
|
atomic_t count;
|
|
struct vfsmount * root;
|
|
struct list_head list;
|
|
wait_queue_head_t poll;
|
|
int event;
|
|
};
|
|
|
|
extern struct mnt_namespace *copy_mnt_ns(unsigned long, struct mnt_namespace *,
|
|
struct fs_struct *);
|
|
extern void __put_mnt_ns(struct mnt_namespace *ns);
|
|
|
|
static inline void put_mnt_ns(struct mnt_namespace *ns)
|
|
{
|
|
if (atomic_dec_and_lock(&ns->count, &vfsmount_lock))
|
|
/* releases vfsmount_lock */
|
|
__put_mnt_ns(ns);
|
|
}
|
|
|
|
static inline void exit_mnt_ns(struct task_struct *p)
|
|
{
|
|
struct mnt_namespace *ns = p->nsproxy->mnt_ns;
|
|
if (ns)
|
|
put_mnt_ns(ns);
|
|
}
|
|
|
|
static inline void get_mnt_ns(struct mnt_namespace *ns)
|
|
{
|
|
atomic_inc(&ns->count);
|
|
}
|
|
|
|
#endif
|
|
#endif
|