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5ea96efaa0
posix_fallocate() is not quite a drop-in replacement for fallocate(), because it is defined to return the error code as its function result, not in "errno". I (tgl) missed this because RHEL6's version seems to set errno as well. That is not the case on more modern Linuxen, though, as per buildfarm results. Aside from fixing the return-convention confusion, remove the test for ENOSYS; we expect that glibc will mask that for posix_fallocate, though it does not for fallocate. Keep the test for EINTR, because POSIX specifies that as a possible result, and buildfarm results suggest that it can happen in practice. Back-patch to 9.4, like the previous commit. Thomas Munro Discussion: https://postgr.es/m/1002664500.12301802.1471008223422.JavaMail.yahoo@mail.yahoo.com |
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PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.