diff options
Diffstat (limited to 'include/linux/ipc_namespace.h')
| -rw-r--r-- | include/linux/ipc_namespace.h | 42 |
1 files changed, 36 insertions, 6 deletions
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h index b75395ec8d52..e8240cf2611a 100644 --- a/include/linux/ipc_namespace.h +++ b/include/linux/ipc_namespace.h @@ -10,6 +10,8 @@ #include <linux/ns_common.h> #include <linux/refcount.h> #include <linux/rhashtable-types.h> +#include <linux/sysctl.h> +#include <linux/percpu_counter.h> struct user_namespace; @@ -35,8 +37,8 @@ struct ipc_namespace { unsigned int msg_ctlmax; unsigned int msg_ctlmnb; unsigned int msg_ctlmni; - atomic_t msg_bytes; - atomic_t msg_hdrs; + struct percpu_counter percpu_msg_bytes; + struct percpu_counter percpu_msg_hdrs; size_t shm_ctlmax; size_t shm_ctlall; @@ -63,6 +65,12 @@ struct ipc_namespace { unsigned int mq_msg_default; unsigned int mq_msgsize_default; + struct ctl_table_set mq_set; + struct ctl_table_header *mq_sysctls; + + struct ctl_table_set ipc_set; + struct ctl_table_header *ipc_sysctls; + /* user_ns which owns the ipc ns */ struct user_namespace *user_ns; struct ucounts *ucounts; @@ -169,15 +177,37 @@ static inline void put_ipc_ns(struct ipc_namespace *ns) #ifdef CONFIG_POSIX_MQUEUE_SYSCTL -struct ctl_table_header; -extern struct ctl_table_header *mq_register_sysctl_table(void); +void retire_mq_sysctls(struct ipc_namespace *ns); +bool setup_mq_sysctls(struct ipc_namespace *ns); #else /* CONFIG_POSIX_MQUEUE_SYSCTL */ -static inline struct ctl_table_header *mq_register_sysctl_table(void) +static inline void retire_mq_sysctls(struct ipc_namespace *ns) { - return NULL; +} + +static inline bool setup_mq_sysctls(struct ipc_namespace *ns) +{ + return true; } #endif /* CONFIG_POSIX_MQUEUE_SYSCTL */ + +#ifdef CONFIG_SYSVIPC_SYSCTL + +bool setup_ipc_sysctls(struct ipc_namespace *ns); +void retire_ipc_sysctls(struct ipc_namespace *ns); + +#else /* CONFIG_SYSVIPC_SYSCTL */ + +static inline void retire_ipc_sysctls(struct ipc_namespace *ns) +{ +} + +static inline bool setup_ipc_sysctls(struct ipc_namespace *ns) +{ + return true; +} + +#endif /* CONFIG_SYSVIPC_SYSCTL */ #endif |