openat$sysfs(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/kernel/kexec_crash_size', 0x0, 0x0)
r0 = creat(&(0x7f0000000000)='./file0\x00', 0x0)
ioctl$FS_IOC_RESVSP(r0, 0xc020660b, &(0x7f00000000c0)={0x0, 0x0, 0xcf})