Re: [Y2038] [PATCH 02/17] y2038: Remove newstat family from default syscall set

On Wed, Apr 25, 2018 at 6:02 PM, Arnd Bergmann arnd@arndb.de wrote:

We have four generations of stat() syscalls:

• the oldstat syscalls that are only used on the older architectures
• the newstat family that is used on all 64-bit architectures but lacked support for large files on 32-bit architectures.
• the stat64 family that is used mostly on 32-bit architectures to replace newstat
• statx() to replace all of the above, adding 64-bit timestamps among other things.

We already compile stat64 only on those architectures that need it, but newstat is always built, including on those that don't reference it. This adds a new __ARCH_WANT_NEW_STAT symbol along the lines of __ARCH_WANT_OLD_STAT and __ARCH_WANT_STAT64 to control compilation of newstat. All architectures that need it use an explict define, the others now get a little bit smaller, and future architecture (including 64-bit targets) won't ever see it.

Signed-off-by: Arnd Bergmann arnd@arndb.de

For m68k: Acked-by: Geert Uytterhoeven geert@linux-m68k.org

Gr{oetje,eeting}s,

Geert