Re: making bgworkers without shmem access actually not have shmem access

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: making bgworkers without shmem access actually not have shmem access
Date: 2014-05-07 18:57:20
Message-ID: CA+TgmobCevERwcso6WEFE=+vg3a0b34+7YDEWgjbVdL0SWLC2g@mail.gmail.com
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On Wed, May 7, 2014 at 2:44 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>> I've complained about this problem a few times before: there's nothing
>> to prevent a background worker which doesn't request shared memory
>> access from calling InitProcess() and then accessing shared memory
>> anyway. The attached patch is a first crack at fixing it.
>
>> Comments?
>
> Looks reasonable to me.

Thanks for the fast review. Committed, after fixing one further bug I spotted.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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