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DateSun, 22 Jul 2007 23:42:04 -0700
FromAndrew Morton <>
SubjectRe: Problems with timerfd()
On Sun, 22 Jul 2007 23:38:26 -0700 Andrew Morton <akpm@linux-foundation.org> wrote:

> > Davide has already submitted a patch to you to make read() from a timerfd
> > file descriptor return an 8 byte integer, and I understand it to have been
> > accepted into -mm.> > argh.  Nobody told me it was an ABI change!  We'll need to consider merging
> make-timerfd-return-a-u64-and-fix-the-__put_user.patch into 2.6.22.x as
> well.> 

So I'm trying to write a halfway respectable description of that patch and
I'm stuck when it comes to describing what will happen if someone tries
to run a future timerfd-enabled glibc on 2.2.22 base.   In what manner
will it misbehave?  What are the consequences of this decision?
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