Contributors: 25
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Andrey Vagin |
453 |
62.31% |
4 |
8.16% |
| Michael Weiß |
42 |
5.78% |
1 |
2.04% |
| Christian Brauner |
37 |
5.09% |
5 |
10.20% |
| Al Viro |
33 |
4.54% |
8 |
16.33% |
| Eric W. Biedermann |
28 |
3.85% |
3 |
6.12% |
| Thomas Weißschuh |
25 |
3.44% |
2 |
4.08% |
| Dmitry Safonov |
21 |
2.89% |
3 |
6.12% |
| Cédric Le Goater |
13 |
1.79% |
1 |
2.04% |
| Serge E. Hallyn |
12 |
1.65% |
3 |
6.12% |
| Kirill V Tkhai |
9 |
1.24% |
1 |
2.04% |
| Linus Torvalds (pre-git) |
8 |
1.10% |
3 |
6.12% |
| David Howells |
8 |
1.10% |
1 |
2.04% |
| Palmer Dabbelt |
6 |
0.83% |
1 |
2.04% |
| Kent Overstreet |
6 |
0.83% |
2 |
4.08% |
| Adrian Bunk |
5 |
0.69% |
1 |
2.04% |
| tongtiangen |
4 |
0.55% |
1 |
2.04% |
| Hui Su |
3 |
0.41% |
1 |
2.04% |
| Herbert Xu |
3 |
0.41% |
1 |
2.04% |
| Badari Pulavarty |
2 |
0.28% |
1 |
2.04% |
| Simon Schuster |
2 |
0.28% |
1 |
2.04% |
| Benjamin Herrenschmidt |
2 |
0.28% |
1 |
2.04% |
| Jakub Kiciński |
2 |
0.28% |
1 |
2.04% |
| Greg Kroah-Hartman |
1 |
0.14% |
1 |
2.04% |
| Jann Horn |
1 |
0.14% |
1 |
2.04% |
| Kees Cook |
1 |
0.14% |
1 |
2.04% |
| Total |
727 |
|
49 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_TIMENS_H
#define _LINUX_TIMENS_H
#include <linux/sched.h>
#include <linux/nsproxy.h>
#include <linux/ns_common.h>
#include <linux/err.h>
#include <linux/time64.h>
#include <linux/cleanup.h>
struct user_namespace;
extern struct user_namespace init_user_ns;
struct seq_file;
struct vm_area_struct;
struct timens_offsets {
struct timespec64 monotonic;
struct timespec64 boottime;
};
struct time_namespace {
struct user_namespace *user_ns;
struct ucounts *ucounts;
struct ns_common ns;
struct timens_offsets offsets;
#ifdef CONFIG_TIME_NS_VDSO
struct page *vvar_page;
#endif
/* If set prevents changing offsets after any task joined namespace. */
bool frozen_offsets;
} __randomize_layout;
extern struct time_namespace init_time_ns;
#ifdef CONFIG_TIME_NS
static inline struct time_namespace *to_time_ns(struct ns_common *ns)
{
return container_of(ns, struct time_namespace, ns);
}
void __init time_ns_init(void);
static inline struct time_namespace *get_time_ns(struct time_namespace *ns)
{
ns_ref_inc(ns);
return ns;
}
struct time_namespace *copy_time_ns(u64 flags,
struct user_namespace *user_ns,
struct time_namespace *old_ns);
void free_time_ns(struct time_namespace *ns);
void timens_on_fork(struct nsproxy *nsproxy, struct task_struct *tsk);
static inline void put_time_ns(struct time_namespace *ns)
{
if (ns_ref_put(ns))
free_time_ns(ns);
}
void proc_timens_show_offsets(struct task_struct *p, struct seq_file *m);
struct proc_timens_offset {
int clockid;
struct timespec64 val;
};
int proc_timens_set_offset(struct file *file, struct task_struct *p,
struct proc_timens_offset *offsets, int n);
static inline void timens_add_monotonic(struct timespec64 *ts)
{
struct timens_offsets *ns_offsets = ¤t->nsproxy->time_ns->offsets;
*ts = timespec64_add(*ts, ns_offsets->monotonic);
}
static inline void timens_add_boottime(struct timespec64 *ts)
{
struct timens_offsets *ns_offsets = ¤t->nsproxy->time_ns->offsets;
*ts = timespec64_add(*ts, ns_offsets->boottime);
}
static inline u64 timens_add_boottime_ns(u64 nsec)
{
struct timens_offsets *ns_offsets = ¤t->nsproxy->time_ns->offsets;
return nsec + timespec64_to_ns(&ns_offsets->boottime);
}
static inline void timens_sub_boottime(struct timespec64 *ts)
{
struct timens_offsets *ns_offsets = ¤t->nsproxy->time_ns->offsets;
*ts = timespec64_sub(*ts, ns_offsets->boottime);
}
ktime_t do_timens_ktime_to_host(clockid_t clockid, ktime_t tim,
struct timens_offsets *offsets);
static inline ktime_t timens_ktime_to_host(clockid_t clockid, ktime_t tim)
{
struct time_namespace *ns = current->nsproxy->time_ns;
if (likely(ns == &init_time_ns))
return tim;
return do_timens_ktime_to_host(clockid, tim, &ns->offsets);
}
#else
static inline void __init time_ns_init(void)
{
}
static inline struct time_namespace *get_time_ns(struct time_namespace *ns)
{
return NULL;
}
static inline void put_time_ns(struct time_namespace *ns)
{
}
static inline
struct time_namespace *copy_time_ns(u64 flags,
struct user_namespace *user_ns,
struct time_namespace *old_ns)
{
if (flags & CLONE_NEWTIME)
return ERR_PTR(-EINVAL);
return old_ns;
}
static inline void timens_on_fork(struct nsproxy *nsproxy,
struct task_struct *tsk)
{
return;
}
static inline void timens_add_monotonic(struct timespec64 *ts) { }
static inline void timens_add_boottime(struct timespec64 *ts) { }
static inline u64 timens_add_boottime_ns(u64 nsec)
{
return nsec;
}
static inline void timens_sub_boottime(struct timespec64 *ts) { }
static inline ktime_t timens_ktime_to_host(clockid_t clockid, ktime_t tim)
{
return tim;
}
#endif
#ifdef CONFIG_TIME_NS_VDSO
extern void timens_commit(struct task_struct *tsk, struct time_namespace *ns);
struct page *find_timens_vvar_page(struct vm_area_struct *vma);
#else /* !CONFIG_TIME_NS_VDSO */
static inline void timens_commit(struct task_struct *tsk, struct time_namespace *ns)
{
}
static inline struct page *find_timens_vvar_page(struct vm_area_struct *vma)
{
return NULL;
}
#endif /* CONFIG_TIME_NS_VDSO */
DEFINE_FREE(time_ns, struct time_namespace *, if (_T) put_time_ns(_T))
#endif /* _LINUX_TIMENS_H */