[RFC v1] man/man2/close.2: CAVEATS: Document divergence from POSIX.1-2024

[Theodore Ts'o]

On Fri, May 16, 2025 at 09:05:47AM -0400, Rich Felker wrote:
 
> In general, raw kernel interfaces do not conform to any version of
> POSIX; they're just a low-impedance-mismatch set of inferfaces that
> facilitate implementing POSIX at the userspace libc layer. So I don't
> think this should be documented as "Linux doesn't conform" but
> (hopefully, once glibc fixes this) "old versions of glibc did not
> conform".

If glibc maintainers want to deal with breaking userspace, then as a
kernel developer, I'm happy to let them deal with the
angry/disappointed users and application programmers.  :-)

						- Ted