The number of preadv and pwritev arguments depends on architecture and personality. For 64bit and ilp32 it equals to 4, for unaligned 32bit it equals to 5, and for aligned 32bit it equals to 6. * linux/aarch64/syscallent1.h: Change the number of preadv and pwritev arguments to 4. * linux/alpha/syscallent.h: Likewise. * linux/ia64/syscallent.h: Likewise. * linux/mips/syscallent-n32.h: Likewise. * linux/mips/syscallent-n64.h: Likewise. * linux/s390x/syscallent.h: Likewise. * linux/sh64/syscallent.h: Likewise. * linux/tile/syscallent.h: Likewise. * linux/x32/syscallent.h: Likewise. * linux/x86_64/syscallent.h: Likewise. * linux/powerpc/syscallent.h: Change the number of preadv and pwritev arguments to 6. * linux/sh/syscallent.h: Likewise. * linux/xtensa/syscallent.h: Likewise.