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| author | James Morris <james.l.morris@oracle.com> | 2017-11-29 12:47:41 +1100 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2017-11-29 12:47:41 +1100 |
| commit | cf40a76e7d5874bb25f4404eecc58a2e033af885 (patch) | |
| tree | 8fd81cbea03c87b3d41d7ae5b1d11eadd35d6ef5 /include/linux/pid_namespace.h | |
| parent | ab5348c9c23cd253f5902980d2d8fe067dc24c82 (diff) | |
| parent | 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323 (diff) | |
Merge tag 'v4.15-rc1' into next-seccomp
Linux 4.15-rc1
Diffstat (limited to 'include/linux/pid_namespace.h')
| -rw-r--r-- | include/linux/pid_namespace.h | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index b09136f88cf4..49538b172483 100644 --- a/include/linux/pid_namespace.h +++ b/include/linux/pid_namespace.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_PID_NS_H #define _LINUX_PID_NS_H @@ -9,15 +10,8 @@ #include <linux/nsproxy.h> #include <linux/kref.h> #include <linux/ns_common.h> +#include <linux/idr.h> -struct pidmap { - atomic_t nr_free; - void *page; -}; - -#define BITS_PER_PAGE (PAGE_SIZE * 8) -#define BITS_PER_PAGE_MASK (BITS_PER_PAGE-1) -#define PIDMAP_ENTRIES ((PID_MAX_LIMIT+BITS_PER_PAGE-1)/BITS_PER_PAGE) struct fs_pin; @@ -29,10 +23,9 @@ enum { /* definitions for pid_namespace's hide_pid field */ struct pid_namespace { struct kref kref; - struct pidmap pidmap[PIDMAP_ENTRIES]; + struct idr idr; struct rcu_head rcu; - int last_pid; - unsigned int nr_hashed; + unsigned int pid_allocated; struct task_struct *child_reaper; struct kmem_cache *pid_cachep; unsigned int level; @@ -56,7 +49,7 @@ struct pid_namespace { extern struct pid_namespace init_pid_ns; -#define PIDNS_HASH_ADDING (1U << 31) +#define PIDNS_ADDING (1U << 31) #ifdef CONFIG_PID_NS static inline struct pid_namespace *get_pid_ns(struct pid_namespace *ns) @@ -105,6 +98,6 @@ static inline int reboot_pid_ns(struct pid_namespace *pid_ns, int cmd) extern struct pid_namespace *task_active_pid_ns(struct task_struct *tsk); void pidhash_init(void); -void pidmap_init(void); +void pid_idr_init(void); #endif /* _LINUX_PID_NS_H */ |