diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mm.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 42f5c2df91d1..3ecd3d633c5f 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -642,5 +642,33 @@ kernel_map_pages(struct page *page, int numpages, int enable) } #endif +#ifndef CONFIG_ARCH_GATE_AREA +#ifdef AT_SYSINFO_EHDR +static inline int in_gate_area(struct task_struct *task, unsigned long addr) +{ + if ((addr >= FIXADDR_USER_START) && (addr < FIXADDR_USER_END)) + return 1; + else + return 0; +} + +extern struct vm_area_struct gate_vma; +static inline struct vm_area_struct *get_gate_vma(struct task_struct *tsk) +{ + return &gate_vma; +} +#else +static inline int in_gate_area(struct task_struct *task, unsigned long addr) +{ + return 0; +} + +static inline struct vm_area_struct *get_gate_vma(struct task_struct *tsk) +{ + return NULL; +} +#endif +#endif + #endif /* __KERNEL__ */ #endif /* _LINUX_MM_H */ |