Re: Latches and barriers

On 2015-01-12 12:49:53 -0500, Tom Lane wrote:
> Andres Freund <andres@2ndquadrant.com> writes:
> > On 2015-01-12 11:03:42 -0500, Tom Lane wrote:
> >> Yeah, now that we have barrier code we think works, we should definitely
> >> put some in there.  The only reason it's like that is we didn't have
> >> any real barrier support at the time.
> 
> > Master only though? If we decide we need it earlier, we can backport
> > that commit lateron...
> 
> We've not been back-patching barrier fixes have we?

Not fully at least. And I'm not sure that's good, because at least
bgworker.c has relied on working barriers for a while and 9.4 introduced
a couple more uses.

I guess we should fix up the backbranch versions in a while.

Greetings,

Andres Freund

-- Andres Freund                       http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
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