[ovs-dev] [PATCH v3 01/17] hashtable: introduce a small and naive hashtable
Pedro Alves
palves at redhat.com
Tue Sep 4 22:58:00 UTC 2012
On 09/04/2012 11:41 PM, Steven Rostedt wrote:
> Ah, I missed the condition with the rec == &pg->records[pg->index]. But
> if ftrace_pages_start is NULL, the rec = &pg->records[pg->index] will
> fault.
Right.
>
> You could do something like rec = pg ? &pg->records[pg->index] : NULL,
Right.
> but IIRC, the comma operator does not guarantee order evaluation. That
> is, the compiler is allowed to process "a , b" as "b; a;" and not "a;
> b;".
Not true. The comma operator introduces a sequence point. It's the comma
that separates function parameters that doesn't guarantee ordering.
--
Pedro Alves
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