__ARCH_WANT_COMPAT_SYS_PREADV64V2 1258 fs/read_write.c #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64V2 __ARCH_WANT_COMPAT_SYS_PREADV64V2 846 include/linux/compat.h #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64V2