diff --git a/include/linux/mm.h b/include/linux/mm.h index 28df70774b81..4d814aa97785 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -18,6 +18,7 @@ #include #include #include +#include struct mempolicy; struct anon_vma; @@ -1780,6 +1781,20 @@ extern struct vm_area_struct *copy_vma(struct vm_area_struct **, bool *need_rmap_locks); extern void exit_mmap(struct mm_struct *); +static inline int check_data_rlimit(unsigned long rlim, + unsigned long new, + unsigned long start, + unsigned long end_data, + unsigned long start_data) +{ + if (rlim < RLIM_INFINITY) { + if (((new - start) + (end_data - start_data)) > rlim) + return -ENOSPC; + } + + return 0; +} + extern int mm_take_all_locks(struct mm_struct *mm); extern void mm_drop_all_locks(struct mm_struct *mm);