6935 static bool perf_mmap_calc_limits(struct vm_area_struct *vma, long *user_extra, long *extra)  in perf_mmap_calc_limits()  argument
6952 	user_locked += *user_extra;  in perf_mmap_calc_limits()
6960 		*user_extra -= *extra;  in perf_mmap_calc_limits()
6970 static void perf_mmap_account(struct vm_area_struct *vma, long user_extra, long extra)  in perf_mmap_account()  argument
6974 	atomic_long_add(user_extra, &user->locked_vm);  in perf_mmap_account()
6981 	long extra = 0, user_extra = nr_pages;  in perf_mmap_rb()  local
7005 			perf_mmap_account(vma, user_extra, extra);  in perf_mmap_rb()
7018 	if (!perf_mmap_calc_limits(vma, &user_extra, &extra))  in perf_mmap_rb()
7041 	perf_mmap_account(vma, user_extra, extra);  in perf_mmap_rb()
7050 	long extra = 0, user_extra = nr_pages;  in perf_mmap_aux()  local
7096 		if (!perf_mmap_calc_limits(vma, &user_extra, &extra)) {  in perf_mmap_aux()
7117 	perf_mmap_account(vma, user_extra, extra);  in perf_mmap_aux()