Revert WAL posix_fallocate() patches.

Jeff Davis <jdavis@postgresql.org>

Commit: b1892aaeaaf34d8d1637221fc1cbda82ac3fcd71
Author: Jeff Davis <jdavis@postgresql.org>
Date: 2013-09-05T06:43:41Z
Releases: 9.4.0
Revert WAL posix_fallocate() patches.

This reverts commit 269e780822abb2e44189afaccd6b0ee7aefa7ddd
and commit 5b571bb8c8d2bea610e01ae1ee7bc05adcfff528.

Unfortunately, the initial patch had insufficient performance testing,
and resulted in a regression.

Per report by Thom Brown.

Files

PathChange+/−
configure modified +1 −2
configure.in modified +1 −1
src/backend/access/transam/xlog.c modified +34 −51
src/include/pg_config.h.in modified +0 −3
src/include/pg_config.h.win32 modified +0 −3