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>
45 lines
972 B
C
45 lines
972 B
C
#ifndef _LINUX_PID_NS_H
|
|
#define _LINUX_PID_NS_H
|
|
|
|
#include <linux/sched.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/threads.h>
|
|
#include <linux/pid.h>
|
|
#include <linux/nsproxy.h>
|
|
#include <linux/kref.h>
|
|
|
|
struct pidmap {
|
|
atomic_t nr_free;
|
|
void *page;
|
|
};
|
|
|
|
#define PIDMAP_ENTRIES ((PID_MAX_LIMIT + 8*PAGE_SIZE - 1)/PAGE_SIZE/8)
|
|
|
|
struct pid_namespace {
|
|
struct kref kref;
|
|
struct pidmap pidmap[PIDMAP_ENTRIES];
|
|
int last_pid;
|
|
struct task_struct *child_reaper;
|
|
};
|
|
|
|
extern struct pid_namespace init_pid_ns;
|
|
|
|
static inline void get_pid_ns(struct pid_namespace *ns)
|
|
{
|
|
kref_get(&ns->kref);
|
|
}
|
|
|
|
extern struct pid_namespace *copy_pid_ns(unsigned long flags, struct pid_namespace *ns);
|
|
extern void free_pid_ns(struct kref *kref);
|
|
|
|
static inline void put_pid_ns(struct pid_namespace *ns)
|
|
{
|
|
kref_put(&ns->kref, free_pid_ns);
|
|
}
|
|
|
|
static inline struct task_struct *child_reaper(struct task_struct *tsk)
|
|
{
|
|
return init_pid_ns.child_reaper;
|
|
}
|
|
|
|
#endif /* _LINUX_PID_NS_H */
|