r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000080)='/sys/power/reserved_size', 0xc0081, 0x0)
pwritev2(r0, &(0x7f0000000000)=[{&(0x7f0000000400)='2', 0x2b}], 0x1, 0x0, 0x0, 0x0)