PROC_SUPER_MAGIC   80 include/uapi/linux/magic.h #define PROC_SUPER_MAGIC	0x9fa0
PROC_SUPER_MAGIC   22 tools/bpf/bpftool/feature.c # define PROC_SUPER_MAGIC	0x9fa0
PROC_SUPER_MAGIC   27 tools/lib/api/fs/fs.c #define PROC_SUPER_MAGIC       0x9fa0