43 int ptrace_access_vm(struct task_struct *tsk, unsigned long addr,  in ptrace_access_vm()  argument
49 	mm = get_task_mm(tsk);  in ptrace_access_vm()
53 	if (!tsk->ptrace ||  in ptrace_access_vm()
54 	    (current != tsk->parent) ||  in ptrace_access_vm()
56 	     !ptracer_capable(tsk, mm->user_ns))) {  in ptrace_access_vm()
632 int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst, int len)  in ptrace_readdata()  argument
641 		retval = ptrace_access_vm(tsk, src, buf, this_len, FOLL_FORCE);  in ptrace_readdata()
658 int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long dst, int len)  in ptrace_writedata()  argument
669 		retval = ptrace_access_vm(tsk, dst, buf, this_len,  in ptrace_writedata()
1338 int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr,  in generic_ptrace_peekdata()  argument
1344 	copied = ptrace_access_vm(tsk, addr, &tmp, sizeof(tmp), FOLL_FORCE);  in generic_ptrace_peekdata()
1350 int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr,  in generic_ptrace_pokedata()  argument
1355 	copied = ptrace_access_vm(tsk, addr, &data, sizeof(data),  in generic_ptrace_pokedata()