r0 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000d40)='/proc/vmstat\x00', 0x0, 0x0)
preadv(r0, &(0x7f0000000540)=[{&(0x7f00000000c0)=""/14, 0xe}], 0x1, 0xffff, 0x0)