r0 = openat$procfs(0xffffffffffffff9c, &(0x7f00000016c0)='/proc/zoneinfo\x00', 0x0, 0x0)
preadv2(r0, &(0x7f0000001a00)=[{0x0}, {0x0}, {&(0x7f0000001840)=""/137, 0x89}], 0x3, 0x3, 0x0, 0x12)