Corpus for mknod$loop:

Coverage	Program
3320	syz_mount_image$ext4-chroot-mount$bind-mknod$loop
2300	clock_adjtime-mknod$loop-creat-perf_event_open-ioctl$BLKTRACESETUP-clock_adjtime
2170	mknod$loop-creat-ioctl$BLKTRACESETUP-ioctl$BLKTRACETEARDOWN-dup-write$binfmt_script-write$P9_RREADDIR-syz_io_uring_setup-syz_genetlink_get_family_id$ipvs
1967	perf_event_open-mknod$loop-creat-ioctl$BLKTRACETEARDOWN
1965	mknod$loop-creat-perf_event_open-ioctl$BLKTRACESETUP-close_range-perf_event_open-signalfd-fork-ptrace-perf_event_open-openat-fcntl$setflags-creat-write$binfmt_elf64-openat$ptp0-ioctl$BLKTRACETEARDOWN
1839	mknod$loop-creat-ioctl$BLKTRACESETUP-ioctl$BLKTRACETEARDOWN
1784	mknod$loop
1736	mknod$loop-openat$dir-openat
1409	seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-mknod$loop