do_sys_openat2(openat2, int, dfd, const char __user*, filename, struct open_how*, how)
ksys_read(read, unsigned int, fd, char __user*, buf, size_t, count)
ksys_write(write, unsigned int, fd, const char __user*, buf, size_t, count)
ksys_pread64(pread64, unsigned int, fd, char __user*, buf, size_t, count, loff_t, pos)
ksys_pwrite64(pwrite64, unsigned int, fd, const char __user*, buf, size_t, count, loff_t, pos)
"do_readv(readv, unsigned long, fd, const struct iovec __user*, vec,
   unsigned long, vlen, rwf_t, flags)"
"do_writev(writev, unsigned long, fd, const struct iovec __user*, vec,
    unsigned long, vlen, rwf_t, flags)"
"do_preadv(preadv, unsigned long, fd, const struct iovec __user*, vec,
    unsigned long, vlen, loff_t, pos, rwf_t, flags)"
"do_pwritev(pwritev, unsigned long, fd, const struct iovec __user*, vec,
     unsigned long, vlen, loff_t, pos, rwf_t, flags)"
__close_fd(close, struct files_struct*, files, unsigned, fd)