/* Note: it is necessary to treat pid as an unsigned int, * with the corresponding cast to a signed int to insure that the * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) * and the register representation of a signed int (msr in 64-bit mode) is performed. */ asmlinkage long compat_sys_sched_rr_get_interval(u32 pid, struct compat_timespec __user *interval) { struct timespec t; int ret; mm_segment_t old_fs = get_fs (); /* The __user pointer cast is valid because of the set_fs() */ set_fs (KERNEL_DS); ret = sys_sched_rr_get_interval((int)pid, (struct timespec __user *) &t); set_fs (old_fs); if (put_compat_timespec(&t, interval)) return -EFAULT; return ret; }
long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval) { struct timespec t; int ret; mm_segment_t old_fs = get_fs(); set_fs(KERNEL_DS); ret = sys_sched_rr_get_interval(pid, (struct timespec __force __user *)&t); set_fs(old_fs); if (put_compat_timespec(&t, interval)) return -EFAULT; return ret; }