diff options
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index fc87162452946..b7859da6d3339 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -496,9 +496,20 @@ int shmem_set_policy(struct vm_area_struct *vma, struct mempolicy *new); struct mempolicy *shmem_get_policy(struct vm_area_struct *vma, unsigned long addr); struct file *shmem_file_setup(char * name, loff_t size, unsigned long flags); -void shmem_lock(struct file * file, int lock); +int shmem_lock(struct file *file, int lock, struct user_struct *user); int shmem_zero_setup(struct vm_area_struct *); +static inline int can_do_mlock(void) +{ + if (capable(CAP_IPC_LOCK)) + return 1; + if (current->rlim[RLIMIT_MEMLOCK].rlim_cur != 0) + return 1; + return 0; +} +extern int user_shm_lock(size_t, struct user_struct *); +extern void user_shm_unlock(size_t, struct user_struct *); + /* * Parameter block passed down to zap_pte_range in exceptional cases. */ |