r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000c00)='/sys/kernel/kexec_loaded', 0x0, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffc000/0x2000)=nil, 0x2000, 0x0, 0x100010, r0, 0x10000000)