pgsql: Clean up the messy semantics (not to mention inefficiency) of - Mailing list pgsql-committers

Log Message:
-----------
Clean up the messy semantics (not to mention inefficiency) of PageGetTempPage
by splitting it into three functions with better-defined behaviors.

Zdenek Kotala

Modified Files:
--------------
    pgsql/src/backend/access/gin:
        gindatapage.c (r1.11 -> r1.12)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/gin/gindatapage.c?r1=1.11&r2=1.12)
        ginentrypage.c (r1.17 -> r1.18)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/gin/ginentrypage.c?r1=1.17&r2=1.18)
        ginutil.c (r1.17 -> r1.18)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/gin/ginutil.c?r1=1.17&r2=1.18)
        ginvacuum.c (r1.24 -> r1.25)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/gin/ginvacuum.c?r1=1.24&r2=1.25)
    pgsql/src/backend/access/gist:
        gist.c (r1.152 -> r1.153)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/gist/gist.c?r1=1.152&r2=1.153)
        gistvacuum.c (r1.39 -> r1.40)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/gist/gistvacuum.c?r1=1.39&r2=1.40)
    pgsql/src/backend/access/nbtree:
        nbtinsert.c (r1.167 -> r1.168)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/nbtree/nbtinsert.c?r1=1.167&r2=1.168)
    pgsql/src/backend/storage/page:
        bufpage.c (r1.80 -> r1.81)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/storage/page/bufpage.c?r1=1.80&r2=1.81)
    pgsql/src/include/access:
        gin.h (r1.25 -> r1.26)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/access/gin.h?r1=1.25&r2=1.26)
    pgsql/src/include/storage:
        bufpage.h (r1.83 -> r1.84)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/storage/bufpage.h?r1=1.83&r2=1.84)