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@xxxxxxxxxxxxxxxx