pgsql: Add a comment describing the requirement that pointers into

From: neilc(at)svr1(dot)postgresql(dot)org (Neil Conway)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Add a comment describing the requirement that pointers into
Date: 2005-10-13 06:17:34
Message-ID: 20051013061734.D0329D83EA@svr1.postgresql.org
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Log Message:
-----------
Add a comment describing the requirement that pointers into shared memory
that is protected by a spinlock must be volatile, per recent discussion.

Modified Files:
--------------
pgsql/src/include/storage:
spin.h (r1.25 -> r1.26)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/storage/spin.h.diff?r1=1.25&r2=1.26)

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