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

[Joseph Myers]

On Tue, 17 Jul 2018, Arnd Bergmann wrote:

> That would definitely help. See below for the stat implementation
> I did in my musl libc prototype based on statx(). It passes the
> LTP syscall tests, but that doesn't mean all the corner cases
> are correct.

Well, you definitely need explicit timestamp conversions on the result of 
statx to be usable in struct stat when userspace "long" is 64-bit, for BE 
because otherwise the integer nanoseconds will be in the wrong place for 
struct timespec, and for LE if the "__reserved is held in case we need a 
yet finer resolution." might start being returned as nonzero (for integer 
attoseconds, I suppose) in future.

-- 
Joseph S. Myers
joseph@codesourcery.com