const compat_sigset_t __user *sigmask,
compat_size_t sigsetsize);
const compat_sigset_t __user *sigmask,
compat_size_t sigsetsize);
struct compat_timespec __user *t, int flags);
asmlinkage long compat_sys_signalfd(int ufd,
struct compat_timespec __user *t, int flags);
asmlinkage long compat_sys_signalfd(int ufd,
struct compat_stat __user *statbuf,
int flag);
asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
struct compat_stat __user *statbuf,
int flag);
asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,