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Re: [PATCH v2 02/17] y2038: Remove newstat family from default syscall set


On Mon, Jul 16, 2018 at 06:10:48PM +0200, Arnd Bergmann 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.
> 
> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Do I read this right that you only want to provide statx by default?
It is a little different from the traditional stat calls, so I'd like
to know this is actually ok from libc folks first.


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