r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/power/image_size', 0x0, 0x0)
preadv2(r0, &(0x7f0000001680)=[{&(0x7f0000000200)=""/4096, 0x1000}], 0x1, 0x0, 0x0, 0x8)